TM BRAZIL 30&P GEN ALTERNADOR 200A MANUAL DE MANUTENÇÃO

Prévia do material em texto

TM BRAZIL-30&P-GEN 
 
 
 
 
 
 
TECHNICAL MANUAL 
 
DIRECT SUPPORT 
MAINTENANCE MANUAL 
(INCLUDING REPAIR PARTS AND SPECIAL TOOLS) 
FOR 
GENERATOR, ALTERNATING CURRENT 
200 AMPERES (Niehoff) 
 
(2920-01-298-8072) 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
DISTRIBUTION STATEMENTS: – Not approved for public release. Distribution restricted by ITAR. Reference Export Control Data 
below. 
 
EXPORT CONTROLLED DATA: – This tangible media, including electronic or digital media, contains technical information whose 
export is governed by the U.S. International Traffic in Arms Regulations (ITAR). This information must not be transferred to a foreign 
person without the proper authorization of the U.S. Government. Violations may result in administrative, civil or criminal penalties. 
 
 
 
 
 
BAE Systems Land & Armaments OCTOBER 2012
 
TM BRAZIL-30&P-GEN 
 
U.S. Export Controlled Data – See title page. 
INSERT LATEST UPDATED PAGES. DESTROY SUPERSEDED DATA. 
LIST OF EFFECTIVE PAGES/ILLUSTRATIONS. 
Note: 
Date of issue for revision is: 
Revision 0 (31 OCTOBER 2012) 
TOTAL NUMBER OF PAGES FOR FRONT AND REAR MATTER IS 3 AND TOTAL NUMBER OF 
FIGURES IS 1, CONSISTING OF THE FOLLOWING: 
Page/Illustration 
No. 
 
Cover 
Chapter 1 (1 pgs) 
Chapter 2 (10 pgs) 
Chapter 3 (14 pgs) 
Appendix A (1 pgs) 
Appendix B (1 pgs) 
Appendix C (9 pgs) 
Appendix D (1 pgs) 
Appendix E (6 pgs) 
Appendix F (9 pgs) 
 
*Zero in this column indicates 
an original page 
*Change 
No. 
 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
Page/Illustration 
No. 
 
*Change 
No. 
 
Page/Illustration 
No. 
 
*Change 
No. 
 
 
 
 
 
 
TM BRAZIL-30&P-GEN 
TABLE OF CONTENTS 
PAGE ILLUS/ 
FIGURE 
i/ii blank 
U.S. Export Controlled Data – See title page. 
Chapter 1 INTRODUCTION ............................................................................................... 1-1 
SECTION I GENERAL ........................................................................................................................ 1-1 
1-1 Scope ............................................................................................................................... 1-1 
 
SECTION II SPECIAL TOOLS AND EQUIPMENT .............................................................................. 1-1 
1-2 Special and Fabricated Tools ........................................................................................... 1-1 
1-3 Speical Equipment ........................................................................................................... 1-1 
 
Chapter 2 GENERATOR TROUBLESHOOTING ............................................................... 2-1 
SECTION I GENERAL ........................................................................................................................ 2-1 
2-1 General Instructions and Procedures ............................................................................... 2-1 
2-2 On Vehicle Test ............................................................................................................... 2-1 
 
SECTION II PN N1205 (Niehoff) .......................................................................................................... 2-2 
2-3 On Vehicle Test ............................................................................................................... 2-2 
2-4 Test Set-Up ...................................................................................................................... 2-2 
2-5 General Test Procedures ................................................................................................. 2-3 
2-6 Dynamic Bench Test Procedures ..................................................................................... 2-4 
2-7 Static Test Procedures ..................................................................................................... 2-5 
 
Chapter 3 GENERATOR MAINTENANCE ......................................................................... 3-1 
SECTION I PN N1205 (Niehoff) .......................................................................................................... 3-1 
3-1 General Instructions ......................................................................................................... 3-1 
3-2 General Repair Instructions ............................................................................................. 3-1 
 
APPENDIX A REFERENCES .................................................................................................. A-1 
APPENDIX B EXPENDABLE SUPPLIES AND MATERIALS LIST .......................................... B-1 
APPENDIX C DIRECT SUPPORT MAINTENANCE REPAIR PARTS AND SPECIAL 
TOOLS ............................................................................................................. C-1 
SECTION I INTRODUCTION ............................................................................................ ................ C-1 
C-1 Scope .............................................................................................................................. C-1 
C-2 General ........................................................................................................................... C-1 
C-3 Recoverability Code ........................................................................................................ C-2 
C-4 Explanation of Columns .................................................................................................. C-5 
C-5 Special Information ......................................................................................................... C-6 
C-6 How To Locate Repair Parts ........................................................................................... C-7 
 
SECTION II REPAIR PARTS LIST ..................................................................................................... C-9 1 
 
APPENDIX D TOOL AND EQUIPMENT REQUIREMENTS ................................................... D-1 
APPENDIX E TEST STAND PROCEDURES .......................................................................... E-1 
E-1 General ............................................................................................................................ E-1 
E-2 Calibration ........................................................................................................................ E-1 
E-3 Base Setting for UMC Switches ....................................................................................... E-2 
E-4 200 AMP Bench Tests ..................................................................................................... E-4 
 
APPENDIX F ILLUSTRATED LIST OF MANUFACTURED ITEMS ......................................... F-1 
F-1 General ............................................................................................................................ F-1 
F-2 Fabricated Tools .............................................................................................................. F-1 
F-3 Special Equipment ........................................................................................................... F-1 
 
 
 
 
CHAPTER 1 TM JORDAN-30&P-GEN 
1-1 
U.S. Export Controlled Data – See title page. 
INTRODUCTION 
SECTION I. GENERAL 
1-1. Scope 
This manual provides instructions for repairing and testing the 200-ampere generator, PN N1205, NSN 2920-01-298- 
8072. Throughout this manual the generator will be referred to by part number. 
SECTION II. SPECIAL TOOLS AND EQUIPMENT 
1-2. Special and Fabricated Tools 
Generator disassembly and assembly requires the use of special and fabricated tools. See Appendix F for 
information to procure materials and dimensions required to fabricatethe necessary tools. Fabricate special wiring 
harnesses to test generators on the test stand, see Appendix F. 
1-3. Special Equipment 
Appendix D lists common tool sets, supplemental sets, and special tools/fixtures needed to maintain the 200-ampere 
generator. 
 
 
 
CHAPTER 2 TM BRAZIL-30&P-GEN 
2-1 
U.S. Export Controlled Data – See title page. 
GENERAL TROUBLESHOOTING 
SECTION I. GENERAL 
2-1. General Instructions And Procedure 
a. This chapter contains troubleshooting information and procedures for locating and correcting 
malfunctions in the various component parts of the generators. 
b. Perform inspection of the generator after removal from the vehicle or engine to verify any 
diagnosis made when the unit was mounted on the vehicle or engine, to uncover further defects, 
or to determine malfunctions. This inspection is important because it is often your only means of 
determining the malfunction without completely disassembling the generator. 
c. Troubleshoot a disabled generator, after removal from the engine, by subjecting it to tests 
described in this manual. 
d. A multimeter will be used for ampere, volt and ohm testing. 
2-2. On Vehicle Test 
a. It is easier to examine the generator on the vehicle, by examining the charging and ignition systems of the 
vehicle at the same time. 
b. Refer to respective vehicle operator's and/or maintenance manuals to verify: 
1) Vehicle belt tension 
a) Use belt tension gauge for appropriate belting system. 
2) Battery condition 
a) Battery must be in good condition and fully charged. 
3) Electrical connection in the charging circuit 
a) Make sure all connections are clean, tight, and free of corrosion. 
4) Ignition circuit 
a) Check for 24 volts nominal at regulator pin F. 
CHAPTER 2 TM BRAZIL-30&P-GEN 
2-2 
U.S. Export Controlled Data – See title page. 
SECTION II. PN N1205 (Niehoff) 
2-3. On Vehicle Test 
a. After the generator has been received by direct support maintenance personnel for preliminary inspection, 
before being installed on the engine, or if performance of the generator has been unsatisfactory due to 
unknown causes, you must inspect as described in this section. 
2-4. Test Set-Up 
a. Refer to vehicle manuals and discharge batteries as follows: 
1) Turn fuel off. 
2) Turn lights and accessories on. 
3) Crank engine for 10-15 seconds to discharge batteries. 
4) Turn lights and accessories off. 
5) Turn fuel on. 
b. Determine factory setting of regulator and normal range of regulated voltage (Table 2-1). 
Table 2-1. Voltage Regulator Specifications 
GENERATOR 
(REGULATOR) 
SYSTEM 
VOLTAGE 
FACTORY 
SETTING 
NORMAL 
RANGE 
N1205 24 28.0 26.0 TO 30.0 
c. Attach multimeter as indicated in Figure 2-1. If an in-line multimeter is used, disconnect battery ground cable 
before connecting multimeter. Then reconnect battery ground cable. Multimeter connections must carry 
rated output of generator. 
 
Figure 2-1. Charging System Schematic 
CHAPTER 2 TM BRAZIL-30&P-GEN 
2-3 
U.S. Export Controlled Data – See title page. 
2-5. General Test Procedures 
CAUTION 
If voltmeter reading exceeds 30.5 volts for 24 volt systems, STOP engine 
immediately and refer to Table 2-3. 
a. Start engine and accelerate to high idle. Refer to TM BRAZIL-10-OPER. 
b. Observe ammeter and voltmeter readings on multimeter. If battery is sufficiently discharged, amps should be 
"high" within +1- 10% of output specified by performance curve (generator RPM = engine idle RPM X pulley 
ratio). Volts should be within or below the "normal range" of Table 2-1. As battery approaches full charge, 
amps should fall as volts rise. When amps and volts stabilize, note readings and refer to Table 2-2. 
Table 2-2. Troubleshooting Diagnosis 
AMPS VOLTS DIAGNOSIS
HIGH LOW 
CHARGING SYSTEM GOOD. BATTERY NOT FULLY CHARGED. WAIT 
FOR CHARGING SYSTEM TO BRING BATTERY TO FULL CHARGE. 
AMPS SHOULD FALL AND VOLTS SHOULD STABILIZE WITHIN 
NORMAL RANGE PER TABLE 2-1. 
HIGH NORMAL 
NOTE IF AMPS FALL OR VOLTS EXCEED NORMAL RANGE PER 
TABLE 2-1. IF AMPS FALL AND VOLTS REMAIN NORMAL, CHARGING 
SYSTEM IS GOOD. IF VOLTS EXCEED NORMAL, REGULATOR AND/OR 
FIELD COIL SHOULD BE REPLACED. GO TO STATIC TESTS. 
HIGH HIGH STOP TEST. REGULATOR AND /OR FIELD COIL SHOULD BE REPLACED. GO TO STATIC TESTS. 
LOW LOW 
IF BOTH AMPS AND VOLTS ARE LOW, CHECK TO BE SURE 
MULTIMETER LEADS ARE PROPERLY ATTACHED. IF OKAY, REPLACE 
EITHER GENERATOR OR REGULATOR. REFER TO GENERATOR AND 
REGULATOR TEST PROCEDURE. 
LOW NORMAL CHARGING SYSTEM GOOD. 
LOW HIGH STOP TEST. IF BATTERY AND VOLTMETER ARE BOTH GOOD, REPLACE REGULATOR AND/OR FIELD COIL. 
c. Discover the cause for failure then disassemble and repair the generator before proceeding with prescribed 
tests. Performing additional operational tests on a damaged generator will only increase the damage. 
CHAPTER 2 TM BRAZIL-30&P-GEN 
2-4 
U.S. Export Controlled Data – See title page. 
2-6. Dynamic Bench Test Procedures 
a. Confirm results of On-Vehicle test by these bench tests if possible. When it is not possible to perform On-
Vehicle tests, check generator performance quickly by referring to these bench tests. 
NOTE 
Test bench must have a 20 Hp motor or larger, capable of driving the generator to 
7000 RPM, a multimeter (App D, Item 3) with 0-400 amp range, and 0-40 volt range. 
b. Mount generator on test bench according to the bench manufacturer's instructions. Refer to Figure 2-1 for 
setup to measure voltage and amperage produced by generator. For bench tests, voltage is normal when it 
is within the normal range of Table 2-1, and amperage is high when it is within +/- 10 % of rated output 
(output 5000 RPM). 
c. Run the No-Load Test without electrical load, but with batteries connected. Run generator at 5000 RPM and 
refer to Table 2-3. 
Table 2-3. No-Load Test Diagnosis 
AMPS VOLTS DIAGNOSIS
HIGH LOW TEST BENCH BATTERY DISCHARGED OF DEFECTIVE. ALLOW TO CHARGE OR REPLACE. 
HIGH NORMAL 
ALLOW TIME TO STABILIZE WHILE MONITORING 
VOLTS. IF VOLTS RISE ABOVE NORMAL RANGE (25V- 
31V), REGULATOR AND/OR FIELD COIL MUST BE 
REPLACED. IF AMPS FALL, CHARGING SYSTEM IS OKAY. 
HIGH HIGH STOP TEST. REGULATOR AND /OR FIELD COIL MUST BE REPLACED. GO TO STATIC TESTS. 
LOW LOW GENERATOR AND/OR REGULATOR MUST BE REPAIRED OR REPLACED. 
LOW NORMAL REGULATOR IS GOOD, GO TO FULL-LOAD TEST. 
LOW HIGH STOP TEST. BENCH MALFUNCTION OR WIRING ERROR. 
CHAPTER 2 TM BRAZIL-30&P-GEN 
2-5 
U.S. Export Controlled Data – See title page. 
d. Discover the cause for failure then disassemble and repair the generator before proceeding with prescribed 
tests. Performing additional operational tests on a damaged generator will only increase the damage. 
Table 2-4. Full-Load Test Diagnosis 
AMPS VOLTS DIAGNOSIS
HIGH LOW TEST BENCH BATTERY DISCHARGED OF DEFECTIVE. ALLOW TO CHARGE OR REPLACE. 
HIGH NORMAL CHARGING SYSTEM OKAY. 
HIGH HIGH STOP TEST. REGULATOR AND /OR FIELD COIL MUST BE REPLACED. GO TO STATIC TESTS. 
LOW LOW GENERATOR AND/OR REGULATOR MUST BE REPAIRED OR REPLACED. 
LOW NORMAL INCREASE LOAD 
LOW HIGH STOP TEST. BENCH MALFUNCTION OR WIRING ERROR. 
2-7. Static Test Procedures 
a. Perform static tests on the partially disassembled generator to confirm component failure indicated by On-
Vehicle test and bench tests. 
b. Complete all static tests before repairing and assembling the generator. 
c. Remove pulley and rear housing to perform the following checks in accordance with paragraph 3-4b, steps 1 
thru 6. 
d. Refer to ohmmeter readings on multimeter. 
e. Static Checks: 
1) Output Transistor - Do not check output transistor. If dynamic test indicates regulator or field coil 
failure and field coil is good, replace the regulator.(refer to step 3, field coil) 
2) Clamping Diode - [1] Set ohmmeter to X100 scale and make sure ohmmeter is zeroed. [2] 
Disconnect the regulator. [3] Connect one multimeter lead to pin E. [4] Connect the other lead to 
pin B and observe ohmmeter reading. In one direction the ohmmeter should read less than 600 
ohms, in the other direction the ohmmeter should read very high. If ohmmeter reads less than 600 
ohms in both directions (short) or very high in both directions (open) clamping diode is defective 
and regulator must be replaced. 
CHAPTER 2 TM BRAZIL-30&P-GEN 
2-6 
U.S. Export Controlled Data – See title page. 
NOTE 
If regulator malfunction is indicated, field coil failure must also be suspected. 
3) Field Coil 
a) Disconnect both field coil leads F+ and F- from front housing (fig 2-2). 
b) Open field coil - Set ohmmeter to X1 scale and make sure ohmmeter is zeroed. Measure 
resistance between field leads (+F and -F). Ohm reading should read less than 4 ohms. If 
ohms read 4 ohms or more, the field coil is open and must be corrected by replacing or 
repairing stator and shell assembly, in accordance with paragraph 3-4b, steps 1 thru 8. 
c) Grounded field coil - Set ohmmeter to X10k scale and make sure ohmmeter is zeroed. 
Connect one multimeter lead to either field lead (F+ or F-). Connect the other multimeter 
lead to the front housing ground stud. The ohm reading should be very high. If the ohms 
read less than 100K ohms, the field coil is grounded and must be corrected by replacing 
or repairing stator and shell assembly, in accordance with paragraph 3-4b, steps 1 thru 8. 
 
Figure 2-2. Front Housing Connections 
CHAPTER 2 TM BRAZIL-30&P-GEN 
2-7 
U.S. Export Controlled Data – See title page. 
4) Electrical Continuity Check - Set ohmmeter to X10 scale and make sure ohmmeter is zeroed. 
Check the generator connector pins to insure all internal wiring is intact. Check output plug 
continuity (refer to table 2-5). If any reading is out of limits, replace generator front housing, in 
accordance with paragraph 3-4b, steps 1 thru 17. 
Table 2-5. Output Plug Continuity 
Ohmmeter 
Scale 
Generator Output Plug Expected 
Readings 
X 10K PIN B GND * Very High 
X 1 PIN B PIN C ZERO 
X 1 PIN B PIN D Very High 
X 10K PIN E GND * Very High 
 
5) Diode heat sink tests - Remove all phase leads (P1-P6) from front housing (fig 2- ). Check the 
diode heat sink assembly using a diode tester. If diode tester is used, refer to manufacturers' 
instructions for proper connections. If a diode tester is not available, use a multimeter and the 
following procedures. 
CAUTION 
To prevent damage to the diodes, do not use an AC device, such as a leakage tester 
to check the diode heat sink. 
NOTE 
Do not allow sleeves on leads to slide down leads. Phase terminals without sleeves 
can short to alternator body. 
NOTE 
Heat sink diodes are de-rated for heavy duty performance. If diode failure is 
detected, examine the entire charging system for loose connections. If a diode 
failure is indicated, suspect stator failure as well. 
CHAPTER 2 TM BRAZIL-30&P-GEN 
2-8 
U.S. Export Controlled Data – See title page. 
a) Positive diodes – 
1. Set ohmmeter to X100 scale and make sure ohmmeter is zeroed. Connect one 
lead of the multimeter to pin B or C of the output connector. Connect the other 
lead to each of the six heat sink phase terminals S (fig. 2-3). All six readings 
should be nearly alike; either less than 600 ohms or very high. If all six readings 
are not alike, the diode rectifier assembly is defective. Replace heat sink 
assembly or front housing assembly, in accordance with paragraph 3-4b, steps 1 
thru 17. 
2. Reverse phase leads, and observe resistance between pin B or C of the output 
connector and each of the six heat sink terminals S (fig. 2-3). All six readings 
should be nearly alike, but opposite the readings obtained previously; if all 
readings were less than 600 ohms before, all readings should be very high now 
and vice versa. If any readings is not alike, the diode rectifier is defective, replace 
heat sink assembly, in accordance with paragraph 3-4b, steps 1 thru 17. 
 
Figure 2-3. Diode Testing Points 
b) Negative Positive diodes – 
1. Set ohmmeter to X100 scale and make sure ohmmeter is zeroed. Connect one 
lead of the multimeter to the ground terminal on the outside of the front housing 
and connect the other lead to each of the six heat sink phase terminals S (fig. 2-
3). All six readings should be nearly alike and read very high. If all six readings 
are not alike, the diode rectifier assembly is defective. Replace the front housing 
assembly, in accordance with paragraph 3-4b, steps 1 thru 17. 
CHAPTER 2 TM BRAZIL-30&P-GEN 
2-9 
U.S. Export Controlled Data – See title page. 
2. Reverse phase leads, and observe resistance between pin B or C of the output 
connector and each of the six heat sink terminals S (fig. 2- ). All six readings 
should be very high. If all six readings are not alike, the diode rectifier assembly 
is defective. Replace the front housing assembly, in accordance with paragraph 
3-4b, steps 1 thru 17. 
6) Diode heat sink tests - Remove all phase leads (P1-P6) from front housing (fig 2- ). Check the 
diode heat sink assembly using a diode tester. If diode tester is used, refer to manufacturers' 
instructions for proper connections. If a diode tester is not available, use a multimeter and the 
following procedures. 
NOTE 
A grounded stator is difficult to confirm by static check. Examine stator for burnt 
insulation or loose coil. 
NOTE 
It may be necessary to probe under the sleeves of the phase leads to make electrical 
contact. 
a) Open stator winding - Set ohmmeter for X10 scale and make sure ohmmeter is zeroed. 
Connect multimeter leads to each successive pair of phase stator windings (fig. 2-4). 
Ohms should read less than 1 ohm between each pair of stator phase windings. If ohms 
reads very high, the stator is open and must be replaced. Replace or repair stator and 
shell assembly, in accordance with paragraph 3-4b, steps 1 thru 12. 
CHAPTER 2 TM BRAZIL-30&P-GEN 
2-10 
U.S. Export Controlled Data – See title page. 
b) Shorted stator winding - Set ohmmeter for X1 scale and make sure ohmmeter is zeroed. 
Connect multimeter leads to each phase lead and ground terminal located on outside of 
front housing (fig. 2-4). Ohms should read very high. If ohms read zero, the stator is 
grounded and must be replaced. Replace or repair stator and shell assembly, in 
accordance with paragraph 3-4b, steps 1 thru 12. 
 
Figure 2-4. Stator Winding Points 
CHAPTER 3 TM BRAZIL-30&P-GEN 
3-1 
U.S. Export Controlled Data – See title page. 
GENERAL TROUBLESHOOTING 
SECTION I. PN N1205 (Niehoff) 
3-1. General Instructions 
a. The procedures discussed in this section cover complete disassembly of the generator. 
b. In cases where the generator does not require complete disassembly, disassemble only to the 
point required to inspect, clean, and replace the damaged component. 
3-2. Generator Repair Instructions 
a. Generator Cleaning Procedures. 
1) Clean exterior surfaces of generator as follows: 
a) Clean exterior surface of generator with cloth (item 5, App B) dipped in dry cleaning 
solvent (item 2, App B). 
b) Dry thoroughly with compressed air or dry cloth (item 5, App B). 
WARNING 
Eye injury can occur if eye shields are not worn when using compressed air to blow 
dirt or other particles off rotor slip rings. 
NOTE 
Compressed air must not exceed 10 psig. 
CHAPTER 3 TM BRAZIL-30&P-GEN 
3-2 
U.S. Export Controlled Data – See title page. 
b. Generator Disassembly Procedure. 
CAUTION 
The generator weighs approximately 80 lb. To prevent personal injury or damageto 
the generator, get a helper when mounting the generator in the vise. 
NOTE 
Perform steps 1 through 4 only as required. 
NOTE 
Place soft-jaw caps on vise when holding generator pulley. 
1) Remove pulley nut (1) and hardened washer (2). Do not loosen the fan nut at this time. 
2) Using a puller (item 7, App D), remove the pulley (3) from the core and shaft (4). 
3) Remove woodruff key (5) and bushing (6) from shaft. 
 
Figure 3-1. Pulley Removal 
 
CHAPTER 3 TM BRAZIL-30&P-GEN 
3-3 
U.S. Export Controlled Data – See title page. 
4) Remove nut (7), hardened washer (8), and fan assembly (9) from shaft (4). 
 
Figure 3-2. Fan Removal 
5) Remove nine flanged locknuts (10) from rear housing (11). Discard locknuts. 
6) Using a puller (item 7, App. D), remove rear housing (11) from stator shell (12). 
 
Figure 3-3. Rear Housing Removal 
CHAPTER 3 TM BRAZIL-30&P-GEN 
3-4 
U.S. Export Controlled Data – See title page. 
7) Using a puller (item 7, App D.), remove rear bearing (15) from core and shaft. 
 
Figure 3-4. Rear Bearing Removal 
8) Remove six flange nuts (13) from core and shaft studs. 
9) Use three 10-32 UNF X 2 inch long machine screw as jackscrews. Install three screws in threaded 
holes of rotor end plate. Pull rotor from core by gradually working screws against core in sequence. 
 
Figure 3-5. Preparation for Rotor Assembly Removal 
CHAPTER 3 TM BRAZIL-30&P-GEN 
3-5 
U.S. Export Controlled Data – See title page. 
NOTE 
Scribe cover plate and front housing before removing cover plate. 
10) Remove six screws (16) and cover (17) from front housing (18). 
 
Figure 3-6. Cover Plate Removal 
NOTE 
There are two connector assembly configurations; both procedures for removal and 
repair are the same. 
11) Remove connector assembly from front of housing. Tag all leads. See page 3-6 steps 3 and 4 for 
procedure to remove connector assembly. 
NOTE 
Mark front housing and stator shell to insure proper alignment when generator is 
reassembled. 
12) Remove connector assembly from front of housing. Tag all leads. See page 3-6 steps 3 and 4 for 
procedure to remove connector assembly. 
 
Figure 3-7. Rotor Assembly Removal 
CHAPTER 3 TM BRAZIL-30&P-GEN 
3-6 
U.S. Export Controlled Data – See title page. 
NOTE 
Mark front housing and stator shell to insure proper alignment when generator is 
reassembled. 
13) Remove retaining ring (20) from core and shaft (4). 
14) Using an arbor press (item 4, App D), remove the core and shaft (4) from the front housing (18) by 
pressing shaft down through the front bearing (21). 
 
Figure 3-8. Front Housing Removal 
CHAPTER 3 TM BRAZIL-30&P-GEN 
3-7 
U.S. Export Controlled Data – See title page. 
15) Remove two retaining rings (22 and 23) from front housing (16). 
NOTE 
Tool A10-108 can be used. 
16) Support front housing on blocks and with an arbor press (item 4, App D), remove front bearing (21). 
 
Figure 3-9. Front Bearing Removal 
17) Remove six flange nuts (24) from core and shaft (4) studs. 
18) Use three 10-32 UNF x 2 inch long machine screw as jacks. Install screws in threaded holes of 
front rotor (19) end plate. Pull front rotor from core by gradually working screws against core in 
sequence. 
 
Figure 3-10. Rotor Core Removal 
CHAPTER 3 TM BRAZIL-30&P-GEN 
3-8 
U.S. Export Controlled Data – See title page. 
c. Generator Assembly Procedure. 
1) Clean bearing's inside diameter surface of front housing (18). 
NOTE 
Retaining ring (22) has two flat surfaces. 
2) Install retaining ring (22) in square groove towards front of the front housing. 
3) Coat outer face of front bearing (21) with a thin coat of sealing compound (item 7, App D). 
4) Using a arbor press (item 4, App D) and Tool A10-108 (item 1, App F), press front bearing (21) into 
front housing (18) until bearing seats against retaining ring (22). 
5) Install retaining ring (23) in front housing (18) groove. 
 
Figure 3-11. Front Bearing Installation 
CHAPTER 3 TM BRAZIL-30&P-GEN 
3-9 
U.S. Export Controlled Data – See title page. 
6) Install rotor assembly (19) on shaft and core assembly (4). Place rotor over end of shaft with 
woodruff key slot (front of shaft). 
NOTE 
Center studs in core with slots in rotor plate. 
7) Apply primer (item 6, App B.) and sealing compound (item 7, App. B) to threads of core and shaft 
studs. Secure rotor (19) to core and shaft (4) with six flange nuts (24). Torque nuts to 45 in-lb. 
 
Figure 3-12. Rotor Core Installation 
8) Support rotor (19) and shaft and core assembly (4) on blocks with the bearing surface down. 
9) Place front bearing (21) in front housing (18) on core and shaft (4). Using arbor press (item 4, App 
D) and Tool S10-109 (item 2, App F) press bearing onto shaft until inner race seats on shaft 
shoulder. 
10) Install retaining ring (20) on core and shaft assembly (4). 
 
Figure 3-13. Front Housing Installation 
CHAPTER 3 TM BRAZIL-30&P-GEN 
3-10 
U.S. Export Controlled Data – See title page. 
CAUTION 
The generator weighs approximately 80 lb. To prevent personal injury or damage to 
the generator, get a helper when mounting the generator in the vise. 
11) Support stator shell (12) on blocks with the six phase leads (black wires) and the two field leads 
pointing up. 
 
Figure 3-14. Stator Preparation 
NOTE 
Normal mounting position is between the 1st and 2nd drain holes starting from the 
left. (Closer to middle hole.) As the stator shell studs come through the holes in the 
front housing, allow the phase leads (black wires) and the field leads to come 
through the large openings in the front housing. 
12) Align front housing (18) with the position marks on the generator core into the stator shell. 
13) Install nine new flanged locknuts (10) on stator shell (12) studs. Tighten locknuts to 18 in-lb torque. 
 
Figure 3-15. Rotor Assembly Installation 
14) Install six phase leads, two field leads, and six nuts on front housing. 
CHAPTER 3 TM BRAZIL-30&P-GEN 
3-11 
U.S. Export Controlled Data – See title page. 
15) Install cover (17 and six screws (16) on front housing (18). 
 
Figure 3-16. Front Cover Plate Installation 
16) Place rotor (14) on core and shaft assembly (4). 
17) Apply primer (item 6, App B) and sealing compound (item 7, App B) to threads of core and shaft 
studs. Secure rotor (14) to core and shaft (4) with six flange nuts (13). Tighten nuts to 45 in-lb. 
 
Figure 3-17. Rotor Plate Installation 
CHAPTER 3 TM BRAZIL-30&P-GEN 
3-12 
U.S. Export Controlled Data – See title page. 
18) Support generator assembly on front housing. 
NOTE 
End housing (11) mounting foot should line up with front housing (12) mounting 
foot. 
19) Place end housing (11) on stator shell (12) and using arbor press (item 4, App D) and Tool A10-
108 (item 1, App F), press end housing onto stator shell until seated against shell (minimal force is 
required). 
20) Install nine new flanged locknuts (10) on stator shell studs. Tighten locknuts to 18 in-lb torque. 
 
Figure 3-18. Rear Housing Installation 
CAUTION 
Care must be taken when pressing the bearing into the housing. Use caution as the 
bearing outer race begins to enter the end housing bore. Misalignment can damage 
the end housing. 
21) Using arbor press (item 4, App D) and Tool A10-119 (item 3, App F), press bearing (15) onto core 
and shaft assembly (4). 
 
Figure 3-19. Rear Bearing Installation 
CHAPTER 3 TM BRAZIL-30&P-GEN 
3-13 
U.S. Export Controlled Data – See title page. 
22) Install pulley bushing (6) on generator shaft. 
23) Press woodruff key (5) into shaft. 
24) Align pulley (3) with woodruffkey (5) and install on generator shaft. 
25) Install hardened washer (2) and pulley nut (1) on shaft. 
 
Figure 3-20. Pulley Installation 
CHAPTER 3 TM BRAZIL-30&P-GEN 
3-14 
U.S. Export Controlled Data – See title page. 
NOTE 
Support the generator and clamp the pulley in a vise with protective jaw caps. 
Tighten the nut to 120 ft-lb torque. 
26) Place fan assembly (9) on shaft from end housing. 
27) With pulley (3) in vise, install washer (8) and nut (7) on generator shaft. Tighten nut to 50 ft-lb 
torque. Remove generator from vise. 
 
Figure 3-21. Fan Installation 
 
d. Generator Performance Test. See Appendix E. 
APPENDIX A TM BRAZIL-30&P-GEN 
A-1 
U.S. Export Controlled Data – See title page. 
REFERENCES 
TM 9-4910-485-12 ........................... Operator and Organizational Maintenance Manual (Including Repair Parts and Special Tool 
List): Test Stand, Automotive Generator, Alternator, and Starter, Floor Mounted, 10 to 50 
V, 500 AMP, AC, Testing Ranges with 8000 to 12,000 RPM, 22 1/2 HP, 220/440 V, 100 to 
400V, 60 Cycle, 3 Phase Dual Head Vari-Driven Assembly (Sun Electric Model AGT-9 and 
AGT-9A). 
TM 9-4910-663-12 ........................... Operator's and Organizational Maintenance Manual for Test Stand, Automotive Generator, 
Alternator Starter and Associated Equipment, Model GASR-500. 
TM BRAZIL-10-OPER ..................... Operator's Manual for: M113A2 Armored, Full Tracked Personnel Carrier. 
 
 
 
APPENDIX B TM BRAZIL-30&P-GEN 
B-1 
U.S. Export Controlled Data – See title page. 
EXPENDABLE SUPPLIES AND MATERIALS LIST 
ITEM 
NUMBER LEVEL 
NATIONAL 
STOCK 
NUMBER 
DECRIPTION 
FSCM & 
PART NUMBER 
U/M 
1 F 5350-00-221-0872 Cloth, Abrasive, Crocus 
(80204) ANSI B74.18 
SH 
2 F 6850-01-277-0595 Cleaning Compound, Solvent 
(59557) 134-HI-SOLV 
GL 
3 F Enamel, Epoxy Insulating, Red 
(11927) 32230CM 
GL 
4 F 9150-00-944-8953 Grease, Aircraft General Purpose, 
Wide Temperature Range 
(77988) Mobilegrease28 
LB 
5 F 7920-00-205-1711 Rag, Wiping 
(80244) 7920-00-205-1711 
LB 
6 F 8030-00-181-8372 Primer, Sealing Compound 
(81346) ASTM D5363 
CN 
7 F 8030-00-081-2329 Sealing Compound 
(81346) ASTM D5363 
TU 
 
 
 
APPENDIX C TM BRAZIL-30&P-GEN 
C-1 
U.S. Export Controlled Data – See title page. 
DIRECT SUPPORT MAINTENANCE 
REPAIR PARTS AND SPECIAL TOOLS LIST 
 
 
 
 
 
Section I. INTRODUCTION 
C-1. Scope 
This appendix lists spares and repair parts; special tools; special test, measurement, and diagnostic equipment 
(TMDE); and other special support equipment required for performance of direct support maintenance of the 200 
AMP engine generator. It authorizes the requisitioning, issue, and disposition of spares, repair parts, and special 
tools as indicated by the source, maintenance, and recoverability (SMR) codes. 
C-2. General 
In addition to Section I, Introduction, this Repair Parts and Special Tools List is divided into the following sections: 
a. Section II. Repair Parts List. A list of spares and repair parts authorized by this document for use in the 
performance of maintenance. The list also includes parts which must be removed for replacement of the 
authorized parts. Parts lists are composed of functional groups in ascending alphanumeric sequence. Bulk 
materials are listed in item name sequence. Repair parts kits are listed separately in their own functional 
group within Section II. Repair parts for repairable special tools are also listed in this section. Items listed are 
shown on the associated illustration(s)/figure(s). 
b. Section III. Special Tools List. A list of special tools, special TMDE, and other special support equipment 
authorized by this document (as indicated by Basis of Issue (BOI) information in DESCRIPTION column) for 
the performance of maintenance. 
c. Section IV. Cross-Reference Indexes. A list, in National Item Identification Number (NIIN) sequence, of all 
National stock numbered items appearing in the listings, followed by a list in alphanumeric sequence of all 
part numbers appearing in the listing. National stock numbers and part numbers are cross-referenced to 
each illustration figure and item number appearance. 
APPENDIX C TM BRAZIL-30&P-GEN 
C-2 
U.S. Export Controlled Data – See title page. 
C-3. Explanation of Columns (Section II and III). 
a. ITEM NO. (Column (1)). Indicates the number used to identify items called out in the illustration. 
b. SMR CODE (Column (2)). The Source, Maintenance, and Recoverability (SMR) code is a 5-
position code containing supply/requisitioning information, maintenance category authorization 
criteria, and disposition instruction, as shown in the following breakout: 
 
 
 
*Complete Repair: Maintenance capacity, capability, and authority to perform all corrective maintenance 
tasks of the “Repair” function in a use/user environment in order to restore serviceability to a failed item. 
(1) Source Code. The source code tells you how to get an item needed for maintenance, repair, or 
overhaul of an end item/equipment. Explanation of source codes follows: 
 
APPENDIX C TM BRAZIL-30&P-GEN 
C-3 
U.S. Export Controlled Data – See title page. 
Code Explanation 
MO – Made at unit level 
MF – Made at DS level 
MH – Made at GS level 
ML – Made at Specialized 
Repair Activity (SRA) 
MD – Made at Depot 
Items with these codes are not to be requested/requisitioned 
individually. They must be made from bulk material which is 
identified by the part number in the DESCRIPTION AND 
USABLE ON CODE (UOC) column and listed in the Bulk 
Material group of the repair parts list in this RPSTL. If the 
item is authorized to you by the 3rd position code of the SMR 
code, but the source code indicates it is made at a higher 
level, order the item from the higher level of maintenance. 
 
 
AO – Assembled by unit 
AF – Assembled by DS 
AH – Assembled by GS 
AL – Assembled by SRA 
AD – Assembled by 
Items with these codes are not to be requested/requisitioned 
individually. The parts that make up the assembled item must 
be requisitioned or fabricated and assembled at the level of 
maintenance indicated by the source code. If the 3rd position 
code of the SMR code authorizes you to replace the item, but 
the source code indicates the item is assembled at a higher 
level, order the item from the higher level of maintenance. 
 
XA -Do not requisition an “XA”-coded item. Order its next higher assembly. (Also, refer to the NOTE 
below.) 
XB -If an “XB” item is not available from salvage, order it using the CAGEC and part number given. 
XC -Installation drawing, diagram, instruction sheet, or field service drawing, that is identified by 
manufacturer’s part number. 
XD -Item is not stocked. Order an “XD”-coded item through normal supply channels using the 
CAGEC and part number given, if no NSN is available. 
NOTE: Cannibalization or controlled exchange, when authorized, may be used as a source of supply for 
items with the above source codes, except for those source coded “XA”. 
(2) Maintenance Code. Maintenance codes tell you the level(s) of maintenance authorized to 
USE and REPAIR support items. The maintenance codes are entered in the third and fourth 
positions of the SMR Code as follows: 
(a.) The maintenance code entered in the third position tells you the lowest maintenance level 
authorized to remove, replace, and use an item. The maintenance code entered in the 
third position will indicate authorization to one of the following levels of maintenance. 
Code Application/Explanation 
C -Crew or operator maintenance done within unit maintenance. 
O -Unit maintenance can remove, replace, and use the item. 
F -Direct support level can remove,replace, and use the item. 
H -General support level can remove, replace, and use the item. 
L -Specialized repair activity can remove, replace, and use the item. 
D -Depot level can remove, replace, and use the item. 
(b.) The maintenance code entered in the fourth position tells whether or not the item is to be 
repaired and identifies the lowest maintenance level with the capability to do complete repair 
(i.e., perform 
APPENDIX C TM BRAZIL-30&P-GEN 
C-4 
U.S. Export Controlled Data – See title page. 
all authorized repair functions). (NOTE: Some limited repair may be done on the item at a 
lower level of maintenance, if authorized by the Maintenance Allocation Chart (MAC) and 
SMR codes.) This position will contain one of the following maintenance codes. 
Code Application/Explanation 
O -Unit maintenance is the lowest level that can do complete repair of the item. 
F -Direct support is the lowest level that can do complete repair of the item. 
H -General support is the lowest level that can do complete repair of the item. 
L -Specialized repair activity is the lowest level that can do complete repair of the item. 
D -Depot is the lowest level that can do complete repair of the item. 
Z -Non-repairable. No repair is authorized. 
B -No repair is authorized. (No parts or special tools are authorized for the 
maintenance of a “B” coded item); however, the item may be reconditioned by 
adjusting, lubricating, etc., at the user level. 
(3) Recoverability Code. Recoverability codes are assigned to items to indicate the disposition action 
on unserviceable items. The recoverability code is entered in the fifth position of the SMR Code 
as follows: 
Recoverability 
Code Application/Explanation 
 
Z -Non-repairable item. When unserviceable, condemn and dispose of the item at 
the level of maintenance shown in 3rd position of SMR Code. 
O -Repairable item. When uneconomically repairable, condemn and dispose of the 
item at unit maintenance level. 
F -Repairable item. When uneconomically repairable, condemn and dispose of the 
item at the direct support level. 
H -Repairable item. When uneconomically repairable, condemn and dispose of the 
item at the general support level. 
D -Repairable item. When beyond lower level repair capability, return to depot. 
Condemnation and disposal of item not authorized below depot level. 
L -Repairable item. Condemnation and disposal not authorized below specialized 
repair activity (SRA). 
A -Item requires special handling or condemnation procedures because of specific 
reasons (e.g., precious metal content, high dollar value, critical material, or 
hazardous material). Refer to appropriate manuals/ directives for specific 
instructions. 
c. NSN (Column (3)). The national stock number for the item is listed in this column. 
d. CAGE (Column (4)). The Commercial and Government Entity (CAGE) code is a 5-digit numeric 
code which is used to identify the manufacturer, distributor, or Government agency, etc., that 
supplies the item. 
APPENDIX C TM BRAZIL-30&P-GEN 
C-5 
U.S. Export Controlled Data – See title page. 
e. PART NUMBER (Column (5)). Indicates the primary number used by the manufacturer 
(individual, company, firm, corporate, or Government activity), which controls the design and 
characteristics of the item by means of its engineering drawings, specifications standards, and 
inspection requirements to identify an item or range of items. 
NOTE: When you use a NSN to requisition an item, the item you receive may have a different 
part number from the part ordered. 
f. DESCRIPTION (COLUMN (6)). This column includes the following information: 
 (1) The Federal item name and, when required, a minimum description to identify the item. 
 (2) The physical security classification of the item is indicated by the parenthetical entry 
abbreviation; e.g., Phy sec C1 (C) – Confidential, Phy sec C1 (S) – Secret, Phy sec (T) – Top 
Secret. 
 (3) Spare/repair parts that make up an assembled item are listed immediately following the 
assembled item line entry. 
 (4) Part numbers for bulk materials are referenced in this column in the line entry for the item 
to be manufactured/fabricated. 
 (5) In the Special Tools List section, the basis of issue (BOI) appears as the last line(s) in the 
entry for each special tool, special TMDE, and other special support equipment. When 
density of equipment supported exceeds density spread indicated in the basis of issue, the 
total authorization is increased proportionately. 
 (5) The statement “END OF FIGURE” appears just below the last item description in Column 
6 for a given figure in both Section II and Section III. 
g. QTY (Column (7)). The QTY (quantity per figure column) indicates the quantity of the item used in 
the breakout shown on the illustration figure, which is prepared for a functional group, sub-
functional group, or an assembly. A “V” appearing in this column in lieu of a quantity indicates that 
the quantity is variable and the quantity may vary from application to application. 
C-4. Explanation of Columns (Section IV). 
a. NATIONAL STOCK NUMBER (NSN) INDEX. 
 (1) STOCK NUMBER column. This column lists the NSN by National item identification 
number (NIIN) sequence. The NIIN consists of the last nine digits of the NSN (i.e., 5305-01-
674-1467. When NIIN using this column to locate an item, ignore the first 4 digits of the NSN; 
however, the complete NSN should be used when ordering items by stock number. 
 (2) FIG. column. This column lists the number of the figure where the item is 
identified/located. The figures are in numerical order in Section II and Section III. 
 (3) ITEM column. The item associated with the figure listed in the adjacent FIG. column. 
This item is also identified by the NSN listed on the same line. 
b. PART NUMBER INDEX. Part numbers in this index are listed by part number in ascending 
alphanumeric sequence (i.e., vertical arrangement of letter and number combination which places 
the first letter or digit of each group in order A through Z, followed by the numbers 0 through 9 
and each following letter or digit in like order). 
APPENDIX C TM BRAZIL-30&P-GEN 
C-6 
U.S. Export Controlled Data – See title page. 
 (1) CAGE column. The Commercial and Government Entity (CAGE) code is a 5-digit 
numeric code used to identify the manufacturer, distributor, or Government agency, etc., that 
supplies the item. 
 (2) PART NUMBER column. Indicates the primary number used by the manufacturer 
(individual, firm, or corporation, or Government activity), which controls the design and 
characteristics of the item by means of its engineering drawings, specifications standards, 
and inspection requirements to identify an item or range of items. 
 (3) STOCK NUMBER column. This column lists the NSN for the associated part number and 
manufacturer identified in the PART NUMBER and CAGE columns to the left. 
 (4) FIG. column. This column lists the number of the figure where the item is 
identified/located in Section II and III. 
 (5) ITEM column. The item number is that number assigned to the item as it appears in the 
figure referenced in the adjacent figure number column. 
C-5. Special Information. 
a. FABRICATION INSTRUCTIONS. Bulk materials required to manufacture items are listed in the 
Bulk Material portion of this RPSTL. Part numbers for bulk materials are also referenced in the 
description column of the line item entry for the item to be manufactured/fabricated. 
b. ASSEMBLY INSTRUCTION. Items that make up the assembly are listed immediately following 
the assembly item entry or reference is made to an applicable figure. 
c. KITS. Line item entries for repair parts kits appear in a group in Section II (see table of contents). 
d. INDEX NUMBERS. Items which have the wordBULK in the figure column will have an index 
number shown in the item number column. This index number is a cross-reference between the 
National Stock Number/Part Number index and the Bulk Material list in Section II. 
e. ASSOCIATED PUBLICATIONS. The publication(s) listed below pertain to the Personnel Carriers 
M113A2 MK1, vehicle and it’s components. 
Publication Short Title 
TM BRAZIL-34-VEH DS/GS Maintenance; M113A2 MK1 
TM BRAZIL-20-VEH Unit Maintenance; M113A2 MK1 
TM BRAZIL-34-COMP DS/GS Maintenance; Transfer Drive/Brake/Steering 
Components 
TM BRAZIL-34P-COMP DS/GS RPSTL; Transfer Drive/Brake/Steering 
Components 
TM BRAZIL-34-TRANS DS/GS Maintenance; Transmission 
TM BRAZIL-34P-TRANS DS/GS RPSTL; Transmission 
TM BRAZIL-34-ENG DS/GS Maintenance; Engine 
TM BRAZIL-34P-ENG DS/GS RPSTL; Engine 
TM BRAZIL-30&P-GEN DS Maintenance/RPSTL; Generator (200 Amp) 
APPENDIX C TM BRAZIL-30&P-GEN 
C-7 
U.S. Export Controlled Data – See title page. 
C-6. How to Locate Repair Parts. 
a. When National Stock Number or Part Number is Not Known. 
 (1) First. Using the table of contents, determine the assembly group or subassembly group to 
which the item belongs. This is necessary since figures are prepared for assembly groups 
and subassembly groups, and listings are divided into the same order. 
 (2) Second. Find the figure covering the assembly group or subassembly group to which the 
item belongs. 
 (3) Third. Identify the item on the figure and use the Figure and Item Number Index to find 
the NSN. 
b. When National Stock Number or Part Number is Known. 
 (1) First. Using the National Stock Number or the Part Number index, find the pertinent 
National Stock Number or Part Number. The NSN index is in National Item Identification 
Number (NIIN) sequence (see 4.a(1)). The part numbers in the Part Number index are listed 
in ascending alphanumeric sequence (see 4 b). Both indexes cross-reference you to the 
illustration/figure and the item number of the item you are looking for. 
 (2) Second. Turn to the figure and item number, verify that the item is the one you’re looking 
for, then locate the item number in the repair parts list for the figure. 
APPENDIX C TM BRAZIL-30&P-GEN 
Figure 1. Generator Assembly 
C-8 
U.S. Export Controlled Data – See title page. 
1
2
3A
4 5
3B
6
7
3C
8
3
9 10
109
12
11
13A
14
13B
15
13A
12
16
8
16A
17
18
19
20
 TM BRAZIL-30&P-GEN 
C-9 
U.S. Export Controlled Data – See title page. 
 (1) (2) (3) (4) (5) (6) (7) 
ITEM SMR NSN PART DESCRIPTION AND 
 NO CAGE NUMBER USABLE ON CODES (UOC) QTY 
GROUP 06 ELECTRICAL 
GROUP 0601 GENERATOR, ALTERNATOR 
FIG. 1 GENERATOR ASSEMBLY 
 
1 PAOZZ 4730-01-540-5437 76761 N9375 LOCKNUT ....................................................... 1 
2 PAOZZ 5310-01-540-5438 76761 N9393 WASHER,FLAT .............................................. 1 
3 PAFZZ 76761 N7314 HOUSING,DRIVE END ................................... 1 
3A PAFZZ 3020-01-540-5436 76761 N9380 PULLEY BUSHING ......................................... 1 
3B PAFZZ 3110-01-037-4661 76761 N9010 BEARING,BALL,DRIVE END ......................... 1 
3C PAFZZ 9905-01-540-5440 76761 N7130 COVER,PLATE ............................................... 1 
4 PAFZZ 5325-01-034-2757 76761 N9009 RING,RETAINING .......................................... 1 
5 PAFZZ 5325-01-136-7662 76761 N9260 RING,RETAINING .......................................... 1 
6 PAFZZ 5325-01-032-4222 76761 N9008 RING,RETAINING .......................................... 1 
7 PAFZZ 5325-01-480-0368 76761 N9186 SCREW,MACHINE ......................................... 6 
8 PAFZZ 5310-01-165-1312 76761 N9099 NUT,SELF-LOCKING,EXTENDED WASHER 17 
9 PAFZZ 5310-01-316-7948 76761 N9345 WASHER,FLAT .............................................. 2 
10 PAFZZ 5310-01-541-9257 76761 N9391 NUT,PLAIN,HEXAGON .................................. 2 
11 PAFZZ 5935-00-755-2788 96906 MS3102R28-22P CONNECTOR,RECEPTACLE,ELECTRICAL 1 
12 PAFZZ 5305-01-480-0359 76761 N9587 SCREW,MACHINE ......................................... 12 
13 PAFZZ 2815-01-540-5441 76761 N7475 ROTOR BLOWER ASSEMBLY ...................... 1 
13A PAFZZ 2920-01-363-5173 76761 N7312 ROTOR ASSEMBLY ....................................... 2 
13B PAFZZ 3040-01-540-5808 76761 N7313 CORE,FLEXIBLE SHAFT ASSEMBLY .......... 1 
14 PAFZZ 5315-00-616-5529 80205 MS35756-16 KEY,WOODRUFF ........................................... 1 
15 PAFZZ 76761 N7311 SHELL,STATOR AND COIL ASSEMBLY ...... 1 
16 PAFZZ 76761 N7310 HOUSING,ANTI-DRIVE END ......................... 1 
16A PAFZZ 3110-01-348-4867 76761 N9129 BEARING,BALL,ANTI-DRIVE END ................ 1 
17 PAFZZ 3120-01-424-1028 76761 N9545 BUSHING,SLEEVE ......................................... 1 
18 PAFZZ 4140-01-349-5320 76761 N7309 IMPELLER,FAN .............................................. 1 
19 PAFZZ 5310-01-050-6565 76761 N9063 WASHER,FLAT .............................................. 1 
20 PAFZZ 5310-01-390-5105 76761 N9092 NUT,SELF-LOCKING,HEXAGON .................. 1 
 
 
 END OF FIGURE 
 
 
 
APPENDIX D TM BRAZIL-30&P-GEN 
D-1 
U.S. Export Controlled Data – See title page. 
TOOLS AND EQUIPMENT REQUIREMENTS 
ITEM 
NUMBER LEVEL 
NATIONAL 
STOCK 
NUMBER 
NOMENCLATURE 
TOOL 
PART 
NUMBER 
1 F 4910-00-754-0705 Shop Equipment 
Automotive Maintenance 
and Repair, Field 
Maintenance 
SC4910-95CLA31 
2 F 5180-00-754-0655 Tool Kit, Automotive 
Fuel and Electric System 
Repair 
SC5180-95-CL-B08 
3 F 6625-00-553-0142 Multimeter TS352BU 
or equal 
4 F 3444-00-243-2654 Press, Arbor, Hand Operated A59174-1A1 
5 F 4910-00-767-0218 Test Stand, Automotive Generator 
500 AMP (Sun) 
MIL&4544 
6 F 4910-01-041-8161 Test Stand, Automotive Generator 
500 AMP (UMC) 
7458-2 
7 F 5120-00-740-3345 Puller, Mechanical 
Three-legged 
J-04871-A 
8 F 5120-00-293-1439 Vice, Machinists 
4" Jaws, 6" Opening 
204 
 
 
 
APPENDIX E TM BRAZIL-30&P-GEN 
E-1 
U.S. Export Controlled Data – See title page. 
TEST STAND PROCEDURES 
E-1. General 
After repair of the generator it must be bench tested to verify correct operation. Follow the procedures below to 
calibrate test stand tachometer, set base settings for the test stands, and then perform tests on the 200 ampere 
generator/regulator and generator. 
E-2. Calibration 
Military vehicle generators are equipped with various size pulleys, such as 3-, 3 1/2-, and 4-inch diameter. The 500-
ampere test stand has a 4-inch pulley. Since the test stand tachometer reads drive head speed, the tachometer must 
be calibrated when a generator has a pulley larger or smaller than 4 inches. To calibrate the speed of the generator 
use fomula below. 
Formula: a = Test speed of test generator (normally lowest rated output speed as indicated by specifications). 
 4 = Diameter of drive pulley on test stand. 
 b = Value of a x 4. 
 c = Diameter of pulley on generator to be tested. 
 e = Value of b divided by c (this value will indicate the speed of the driven pulley when the test 
stand speed (a) is at selected speed). 
 a X 4 = b = e 
 c 
Example: To test a generator with a 3-inch pulley, determine lowest rated speed of generator. If rated RPM for a 
generator is 2,000 RPM to 8,000 RPM, select 2,000 RPM as test speed. 
Increase test stand speed to 2,000 RPM with vari-drive speed control. Turn the calibrate pulley control to calibrate 
position. 
Turn the calibrate knob to increase reading on the tachometer to value determined by e (speed of test generator) in 
above formula. Increase or reduce test stand speed with vari-drive control until tachometer indicates desired test 
speed (2,000 RPM). In the formula below,the 3-inch pulley on the test generator will be turning 2,666 RPM when the 
test stand tachometer indicates 2,000 RPM. 
 2000 X 4 = 8000 = 2666 RPM 
 3 
 
APPENDIX E TM BRAZIL-30&P-GEN 
E-2 
U.S. Export Controlled Data – See title page. 
E-3. Base Setting for UMC Switches and Controls 
(Part NO 7458 and 7458-2) 
CAUTION 
Make certain all test stand switches and controls are in positions listed below before 
testing to prevent damage to test stand or component by application of excessive 
power. 
The base setting for UMC controls and switches: 
 a. DC load ammeter range switch X 10 
 b. DC field ammeter range switch X 6 
 c. Millivoltmeter 
 1) Range switch X 10 
 2) Millivoltmeter (press to read switch) OFF 
 d. DC voltmeter 
 1) Range switch X 5 
 2) Select switch RECT/GEN 
 e. Tachometer 
 1) Select switch DIRECT DRIVE 
 2) Pulley calibration knob COUNTERCLOCKWISE 
 f. AC ammeter 
 1) Range switch X 2 
 2) Select switch T1 
 g. AC voltmeter 
 1) Range switch X 2 
 2) Select switch T1 – T2 
 h. External field exciter switch (AC system) OFF 
 i. Generator field INT GND 
 j. Polarity reversing switch NEG GND 
 k. Field circuit OFF 
 l. Fine control switch (0-5) OFF 
 m. Field current increase (0-5) COUNTERCLOCKWISE 
 n. Field circuit (rheostat 0 - 30) COUNTERCLOCKWISE 
 o. Battery circuit selector OFF 
 p. Circuit breakers DOWN (Press to ensure 
 CBS are down) 
 q. Regulator check, fixed resistance method OFF 
 r. DC variable volts OFF 
 s. Load selection (all switches) OFF 
 t. Master load disconnect OFF 
 u. Variable load increase COUNTERCLOCKWISE 
 v. Voltage adjusting increase (VAR) COUNTERCLOCKWISE 
 w. Field shorting (spring-loaded) OFF 
APPENDIX E TM BRAZIL-30&P-GEN 
E-3 
U.S. Export Controlled Data – See title page. 
 x. Starter rheostat Approximately three turns 
 COUNTERCLOCKWISE 
 from fully CLOCKWISE 
 y. Starter test OFF 
 z. Equalizer coil test OFF 
 aa. Auxiliary start OFF 
 ab. Ignition switch OFF 
 ac. Bus bars 
 1) B+ and G+ In place 
 2) B- and G- In place 
 ad. GDC variable power supply 
 0-32 VDC (front panel) COUNTERCLOCKWISE 
 ae. Charge time control OFF 
 af. Battery charger variable load COUNTERCLOCKWISE 
 ag. D-sensing switch OFF 
 (New UMC test stand no. 7458-2 has D-sensing switch normally OFF.) 
Reference – Base setting for SUN test stand. 
 External master power switch OFF 
 Main power switch OFF 
 Motor drive set for CLOCKWISE 
 rotation of generator 
 DC load ammeter 500 amperes 
 DC field ammeter 30 amperes 
 Millivolt meter 9 volts and OFF 
 DC voltmeter 50 volts and RECT/GEN 
 Tachometer Direct drive 
 AC ammeter 500 amperes and phase A 
 AC voltmeter 50 volts and OFF 
 400-ampere control box Voltage adjust fully 
 COUNTERCLOCKWISE 
 Equalizer coil test OFF 
 Ignition switch OFF 
 Power supply switch OFF and rheostat fully 
 COUNTERCLOCKWISE 
 Battery charger switch OFF and rheostat fully 
 COUNTERCLOCKWISE 
 External field OFF 
 Field common Negative (-) 
 Field circuit switch Regulator 
 Relay lamp OFF 
 Regulator load resistor selector OFF 
 Current polarity OFF 
 
APPENDIX E TM BRAZIL-30&P-GEN 
E-4 
U.S. Export Controlled Data – See title page. 
 Starter test switch OFF and stator voltage 
 adjusted COUNTERCLOCKWISE 
 All load switches OFF 
 Field current switches OFF 
 Field current rheostat Fully COUNTERCLOCKWISE 
 Variable load Fully COUNTERCLOCKWISE 
 Regulator section bus bars 
 1) B+ and G+ In place 
 2) B- and G- In place 
E-4. 200 AMP Bench Test 
a. Generator test. 
CAUTION 
Follow steps as written or voltage spikes may damage test equipment or pop circuit 
breaker. 
1) Place test stand controls and switches in base settings (para E - 3). 
2) Install bracket (fig. F-6) on test stand. 
3) Install pulley (UMC part no. 89335) on test stand. 
4) Install pulley assembly 12314043 (3020-01-146-8942) on generator. 
5) Place generator in bracket. Install three belts (UMC part no. 3L350) between pulleys. Check belt 
tension and alignment. Lock generator in bracket with chain vise. 
6) Verify bus bars are installed from B+ to G+ and B- to G-. 
7) Connect generator to test stand cables (see figures F-7 through F - 12). 
8) Adjust rheostat (fig. F-4) maximum resistance. 
9) Verify main circuit breaker on test stand is ON. 
10) Turn BATTERY CIRCUIT SELECTOR to 24 VOLTS. 
11) Turn FIELD CIRCUIT switch to REGULATOR. Note: on -4 test stand DC voltmeter to RECT/GEN. 
12) Turn MASTER LOAD DISCONNECT switch ON. 
13) Press START button. 
14) Increase test stand speed to 2000 RPM. 
15) Check output voltage for 28 + 1 volts. If necessary, adjust rheostat voltage to obtain 28 + 1 volts. 
16) Reading DC RANGE ammeter, add incremental loads up to 200 AMPS. Adjust rheostat as needed 
to maintain voltage. 
17) If 200 AMPS at 2000 RPM cannot be obtained at all load settings, generator is defective. 
 
APPENDIX E TM BRAZIL-30&P-GEN 
E-5 
U.S. Export Controlled Data – See title page. 
18) Turn rheostat until 24 VDC is obtained. Repeat until all applied loads are removed. Turn off 
applied loads one at a time, readjusting rheostat to 24 VDC each time a load is removed. 
19) Reduce test stand speed to 1000 RPM. 
20) Push STOP button. Wait for test stand to come to a complete stop. 
21) Return test stand to base settings (para E-3). 
22) Remove generator from test stand. 
b. Generator/Regulator test. 
CAUTION 
Follow steps as written or voltage spikes may damage test equipment or pop circuit 
breaker. 
NOTE 
Perform generator test first. 
1) Place test stand switches and controls in base settings (para E - 3). 
2) Install bracket (fig. F-5) on test stand. 
3) Install pulley (UMC part no. 89335) on test stand. 
4) Install pulley 12314043 on generator. 
5) Place generator in bracket. Install three belts (part no. 3L350-G) between pulleys. Check belt 
tension and alinement. Lock down generator with chain vise. 
6) Verify bus bars are installed from B+ to G+ and B- to G-. 
7) Connect generator/regulator test stand cables (see figures F-7 through F-12). 
8) Verify main circuit breaker on test stand is ON. 
9) Turn BATTERY CIRCUIT SELECTOR to 24 VOLTS. (Sun reference - Read BATTERY SELECT). 
10) Turn MASTER LOAD DISCONNECT switch ON. 
11) Press START button. 
12) Increase test stand speed to 2000 RPM. 
13) Check output voltage for 28 + .5 volts. If necssary, adjust regulator output screw to obtain 28 + .5 
volts. 
14) Verify test stand is operating at 2000 RPM. 
15) Check output voltage which should be 28 + .5 volts. Read DC LOAD AMMETER. (Sun reference - 
Read DC AMMETER LOAD AND STARTER OUTPUT BATTERY CHARGE CURRENT). 
16) Add incremental loads up to 200 amps. Voltage should remain constant. 
17) If 28 volts cannot be sustained at various settings, regulator is defective. 
18) Reduce loads one at a time, until load is zero at completion of test. 
APPENDIX E TM BRAZIL-30&P-GEN 
E-6 
U.S. Export Controlled Data – See title page. 
19) Reduce test stand speed to 1000 RPM. 
20) Press STOP button. Wait for test stand to come to a complete stop. 
21) Return test stand switches and controls to base settings (para E-3). 
22) Remove generator and regulator from test stand. 
 
Figure E-1. 200 AMP Generator Performance Curves 
APPENDIX F TM BRAZIL-30&P-GEN 
F-1 
U.S. Export Controlled Data – See title page. 
ILLUSTRATED LIST OF MANUFACTURED ITEMS 
F-1. General 
This appendix includes complete instructions for making items authorized to be manufactured or fabricated atintermediate direct support maintenance. 
F-2. Special and Fabricated Tools 
Generator disassembly and assembly requires the use of special and fabricated tools. See figures F-2 through F-4 
for materials and dimensions required to fabricate the necessary tools. 
F-3. Special Equipment 
a. A matched set of 35 - inch V-belts (O.D.), NSN 3030-00-834-5935 is required for testing the 
generator. 
NOTE 
Matched set of V-belts, 3030-00-834-5935 is a four belt set; only three belts are 
needed. 
b. A 50 OHM, 300 watt rheostat, NSN 5905-00-497-0732, is needed for testing generator. See figure F-1. 
c. Testing generator requires fabricating special wiring harnesses, and a special bracket and a rheostat 
mounting box to be used with the test stand. See figures F-5 and F-6 for materials and dimensions required 
for bracket and rheostat box fabrication. See figures F-7 through F-12 for materials and dimensions for 
wiring harness fabrication. 
 
Figure F-1. Rheostat 
APPENDIX F TM BRAZIL-30&P-GEN 
F-2 
U.S. Export Controlled Data – See title page. 
Special Tools for Generator Disassembly and Assembly. 
 
Figure F-2. Bearing Removal and InstallationTool – (76761) A10-108 
 
Figure F-3. Front Housing Installation Tool – (76761) A10-109 NSN 5120-01-574-9588 
 
Figure F-4. Rear Bearing Installation Tool – (76761) A10-119 NSN 5340-01-469-0087 
APPENDIX F TM BRAZIL-30&P-GEN 
F-3 
U.S. Export Controlled Data – See title page. 
 
Part No 11020555 
NOTES: 
1. MATERIAL: STEEL PLATE, IAW 
ASTM A36. 
5. REMOVE BURRS AND BREAK 
ALL SHARP EDGES. 
2. MATERIAL STEEL CHANNEL, 
C8 x 11.5 IAW ASTM A36. 
6. MARK PART NO. IAW 
MIL-STD-130. 
3. ALL MACHINED SURFACES TO 
BE 250. 
7. FINISH 5.1.1 + 21.3 OF 
MIL-STD-171. COLOR-GRAY, 
NO. 26037 OF MIL-STD-595 
4. FOR INTERPRETATION OF: 
DIMENSIONING AND TOLER- 
ANCING, SEE ANSI Y145. 
DRAWING STANDARDS. SEE 
DOD-STD-100. 
8. WELD IAW MIL-STD-1261 
CIASS I. 
9. MATERIAL: STEEL ANGLE.< 2 1/2 x 2 x 1/2 
IAW ASTM A36. 
Figure F-5. Test Stand Bracket 
 
APPENDIX F TM BRAZIL-30&P-GEN 
F-4 
U.S. Export Controlled Data – See title page. 
 
WARNING 
To prevent electrical shock, cut sheet metal away from cap screws so they contact 
only the plastic insulators, not the metal box. 
NOTE 
Fabricate rheostat mounting box according to materials and dimensions above. 
Figure F-6. Rheostat Mounting Box 
 
APPENDIX F TM BRAZIL-30&P-GEN 
F-5 
U.S. Export Controlled Data – See title page. 
NOTE 
The length tolerance for all cables is ± 0.25 inch. 
 
LEGEND: 
1. Wire, Electrical - M13486-1-11 
 (6145-00-538-8219) 
 Terminal - 8689221 
 (5940-01-170-4956) 
 Band marker - M43436/1-1 
 (9905-00-752-4649) 
3. Connector, plug, - 13207E6384-4 
 (5935-00-730-7325) 
 Insert, elec - 10874855 
 (5935-00-784-1701) 
 Nut - 7723309 
 (5310-00-393-6685) 
 Nut - 7716634 
 (5975-00-771-6634) 
 AR-Rod - 8724768 
 (9390-00-485-9885) 
 AR-Rod - 8724763 
 (9390-00-180-7289) 
2. Wire, Electrical - M13486/1-7 
 (6145-00-705-6678) 
 Terminal - MS25036-155 
 (5940-00-660-3633) 
 Band marker - M43436/1-1 
 (9905-00-752-4649) 
Figure F-7. Generator Test Harness – (19207) 12349685 NSN 6150-01-360-1493 
 
APPENDIX F TM BRAZIL-30&P-GEN 
F-6 
U.S. Export Controlled Data – See title page. 
 
LEGEND: 
1. Wire, Electrical - M13486-1-11 
 (6145-00-538-8219) 
3. Wire, Electrical - M13486/1-7 
 (6145-00-705-6678) 
2. Connector, plug, - 13207E6384-4 
 (5935-00-730-7325) 
 Insert, elec - 10874855 
 (5935-00-784-1701) 
 Nut - 7723309 
 (5310-00-393-6685) 
 Nut - 7716634 
 (5975-00-771-6634) 
 AR-Rod - 8724763 
 (9390-00-180-7289) 
 AR-Rod - 8724768 
 (9390-00-485-9885) 
4. Connector, plug, - 8724259 
 (5935-00-081-0400) 
 Nut – 7716634-1 
 (5975-01-151-7033) 
 Bushing, rubber – 8341848 
 (5365-00-303-4841) 
 Nut - 7723309 
 (5310-00-393-6685) 
 AR-Rod - 8724763 
 (9390-00-180-7289) 
Figure F-8. Generator/Regulator Test Harness – (19207) 12349686 
 
APPENDIX F TM BRAZIL-30&P-GEN 
F-7 
U.S. Export Controlled Data – See title page. 
 
LEGEND: 
1. Wire, Electrical - M13486-1-11 
 (6145-00-538-8219) 
 Terminal - 8689221 
 (5940-01-170-4956) 
 Band marker - M43436/1-1 
 (9905-00-752-4649) 
3. Connector, plug, - 13207E6384-4 
 (5935-00-730-7325) 
 Insert, elec - 10874855 
 (5935-00-784-1701) 
 Nut - 7723309 
 (5310-00-393-6685) 
 Nut – 7716634-1 
 (5975-01-151-7033) 
 AR-Rod - 8724763 
 (9390-00-180-7289) 
 AR-Rod - 8724768 
 (9390-00-485-9885) 
2. Wire, Electrical - M13486/1-7 
 (6145-00-705-6678) 
 Terminal - MS25036-155 
 (5940-00-660-3633) 
 Band marker - M43436/1-1 
 (9905-00-752-4649) 
Figure F-9. Generator/Regulator Test Harness – (19207) 12349687 
 
APPENDIX F TM BRAZIL-30&P-GEN 
F-8 
U.S. Export Controlled Data – See title page. 
 
LEGEND: 
1. Terminal - 7064829 
 (5940-00-520-2447) 
3. Terminal - 8689221 
 (5940-01-170-4956) 
2. Wire, Electrical - M43436-1-11 
 (6145-00-538-8219) 
Figure F-10. Ground Cable – (19207) 12349684 
 
LEGEND: 
1. Terminal - MS25036-108 
 (5940-00-143-4780) 
3. Terminal - MS25036-155 
 (5940-00-660-3633) 
2. Wire, Electrical - M13486/1-7 
 (6145-00-705-6678) 
Figure F-11. Ground Cable – (19207) 12349682 
 
APPENDIX F TM BRAZIL-30&P-GEN 
F-9 
U.S. Export Controlled Data – See title page. 
 
LEGEND: 
1. Terminal - MS25036-155 
 (5940-00-660-3633) 
 
2. Wire, Electrical - M13486/1-7 
 (6145-00-705-6678) 
Figure F-12. Ground Cable – (19207) 12349683 
 
 
 
	TOCnull
	Chapter 1null
	Cahpter 2null
	Cahpter 3null
	Appendix Anull
	Appendix Bnull
	Appendix Cnull
	Figure 1null
	Appendix Dnull
	Appendix Enull
	Appendix Fnull