0012-0270 Coupling

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<p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 - Service Work Instruction Page 1 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>Q</p><p>M</p><p>S</p><p>0</p><p>0</p><p>0</p><p>8</p><p>7</p><p>V</p><p>0</p><p>2</p><p>2</p><p>0</p><p>0</p><p>9</p><p>-1</p><p>0</p><p>-0</p><p>7</p><p>Replacement of coupling</p><p>Read the full document before you start to do work.</p><p>Send questions or concerns about the document to Vestas Wind Systems A/S.</p><p>Wind turbine type Mk version</p><p>NM72/1650 All</p><p>NM82/1650 All</p><p>V82-1.65 MW All</p><p>Version</p><p>no.</p><p>Date Description of changes</p><p>01 2018-09-28 Updated section 4 Required documentation, p. 3.</p><p>Added section 13.2 Replacement of rubber element of the generator</p><p>coupling, p. 7.</p><p>Table of contents</p><p>1 Safety .................................................................................................................................... 2</p><p>2 Educational Requirements of Service Technician ............................................................. 2</p><p>3 Abbreviations and technical terms ..................................................................................... 2</p><p>4 Required documentation ..................................................................................................... 3</p><p>5 Purpose ................................................................................................................................ 3</p><p>6 Risk Assessment ................................................................................................................. 3</p><p>7 Note ...................................................................................................................................... 3</p><p>8 Tools ..................................................................................................................................... 3</p><p>9 Spare Parts ........................................................................................................................... 4</p><p>10 Consumables ....................................................................................................................... 4</p><p>11 Weights ................................................................................................................................. 4</p><p>12 Estimated Time Use ............................................................................................................. 4</p><p>13 Procedure ............................................................................................................................. 4</p><p>13.1 Preparation ............................................................................................................................ 6</p><p>13.2 Replacement of rubber element of the generator coupling ..................................................... 7</p><p>13.3 Dismantling the Coupling for V82-1.65 MW Mk 2 and Newer Mark Versions ....................... 10</p><p>13.4 Dismantling the Coupling - NM82/1650, NM72/1650 ............................................................ 13</p><p>13.5 Mounting of new high-speed coupling .................................................................................. 17</p><p>VESTAS PROPRIETARY NOTICE: This document contains valuable confidential information of Vestas Wind Systems A/S. It is protected by copyright law as an unpublished work. Vestas reserves all patent, copyright, trade secret, and</p><p>other proprietary rights to it. The information in this document may not be used, reproduced, or disclosed except if and to the extent rights are expressly granted by Vestas in writing and subject to applicable conditions. Vestas</p><p>disclaims all warranties except as expressly granted by written agreement and is not responsible for unauthorized uses, for which it may pursue legal remedies against responsible parties.</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 2 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>1 Safety</p><p>All work involved in the construction, operation and maintenance of a turbine,</p><p>including work methods and practices, employee training and protective</p><p>measures, and use of tools and equipment, shall be in accordance with the</p><p>requirements of the applicable governmental and private occupational safety and</p><p>health codes and standards. Employers engaged in such work are also required</p><p>to be familiar with and comply with ‘Vestas Corporate OH&S Manual’ and</p><p>documents holding specific turbine safety instructions for the relevant turbine</p><p>type. Vestas shall not be responsible for any liabilities arising from failure to</p><p>comply with such requirements. Vestas reserves the right to inspect such work to</p><p>ascertain such compliance.</p><p>Personal Protective Equipment</p><p>Item no. Quantity Description</p><p>Standard personal protective equipment (PPE).</p><p>Table 1-1: Required PPE.</p><p>2 Educational Requirements of Service Technician</p><p>At least two of the service technicians working in a wind turbine are required to</p><p>possess valid course certificates for the ‘Vestas Basic Safety Training for Service</p><p>Technicians’, including basic safety theory, first aid, fire prevention and fire</p><p>fighting, emergency descent and any additional safety courses owing to local</p><p>requirements.</p><p>At least one service technician must possess the wind turbine specific course</p><p>certificate for the turbine in question.</p><p>Some tasks require one or more advanced training modules or job specific</p><p>training as described in the Vestas ‘Technical Training Programme’. The person</p><p>planning a specific task must ensure that the service technicians involved</p><p>possess the proper know-how for completion of that task.</p><p>3 Abbreviations and technical terms</p><p>Abbreviation Spelled-out form/explanation</p><p>HSS High-speed shaft</p><p>TAC Turbine access controller</p><p>LSS Low-speed shaft</p><p>Table 3-1: Abbreviations</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 3 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>4 Required documentation</p><p>Document no. Title</p><p>0000-0496 Vestas corporate OH&S manual</p><p>1001381 Turbine safety instruction - V82­1.65 MW</p><p>0000-9758 LSS rotor lock</p><p>1001477 Service instruction - generator</p><p>920098 Torque wrench settings</p><p>960501 Bolt connections</p><p>Table 4-1: Required documentation</p><p>Unless it is specified differently, see 920098 ‘Torque wrench settings’ for</p><p>information about bolt types and bolt lubrication, and see 960501 ‘Bolt</p><p>connections’ for information about torque values.</p><p>5 Purpose</p><p>This document describes how to replace the coupling in the following turbine</p><p>types:</p><p> V82-1.65 MW</p><p> NM82/1650</p><p> NM72/1650</p><p>6 Risk Assessment</p><p>0012-0279 RA for 0012-0270 'Replacement of Coupling in V82­1.65 MW,</p><p>NM82/1650 and NM72/1650 Turbines'.</p><p>7 Note</p><p>This section is not relevant to this procedure.</p><p>8 Tools</p><p>Item no. Quantity Description</p><p>294302 Allen socket for ½" 14 mm</p><p>T2096300 Combination wrench PA 24 mm</p><p>294230 Combination spanner 30 mm</p><p>T2176700 Socket wrench set St 52/54/26/6</p><p>T2175100 Torque wrench St 730/40 m/14x18</p><p>NOTE</p><p>http://dms.vestas.net/dmsview?type=T09&no=/920098&part=000&file=*.pdf</p><p>http://dms.vestas.net/dmsview?type=T09&no=/960501&part=000&file=*.xlsm</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 4 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>Item no. Quantity Description</p><p>238315 Plug-in ring 30 mm 14X18</p><p>T2183500 Crowbar 600 mm</p><p>VT200009 End cover lifting tool</p><p>(Infor XA: Tool, bearing repl. Elin gen)</p><p>Table 8-1: Tools.</p><p>9 Spare Parts</p><p>Item no. Quantity Description</p><p>60100182</p><p>Coupling centalink NM82-1500/1</p><p>Table 9-1: Spare parts.</p><p>10 Consumables</p><p>This section is not relevant to this procedure.</p><p>11 Weights</p><p>This section is not relevant to this procedure.</p><p>12 Estimated Time Use</p><p>This section is not relevant to this procedure.</p><p>13 Procedure</p><p>Rotating parts!</p><p> Do not work on rotating parts without applying the rotor lock.</p><p> Stop the wind turbine to avoid unintended starting and remote operation.</p><p> Apply the brake prior to removal of covers.</p><p> Lock the rotor mechanically prior to removal of covers.</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 5 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>Suspended loads!</p><p> Do not stand/work under suspended loads.</p><p> Use only approved and certified lifting equipment, and thoroughly inspect it</p><p>visually prior to use.</p><p> If defective lifting equipment is discovered, it must be marked 'Defective' and</p><p>immediately be removed from the work site.</p><p> Verify that the lifting equipment is inspected and tested according to local</p><p>legislation.</p><p> Ensure that load on lifting equipment, lifting tools and hoists is within the 'Safe</p><p>Working Load', as specified in the lifting plan.</p><p> Vacate the area under the lifting operation.</p><p> The entire work area must be demarcated during lifting.</p><p> Ensure that all personnel/vehicles are clear of the drop zone.</p><p>Heavy parts!</p><p> Keep fingers away from narrow spaces when guiding the load into the</p><p>nacelle.</p><p> Stay away from the direction of movement of the load.</p><p>Tightening of bolts!</p><p> Do not place fingers/hands between tool and nearby parts such as calipers,</p><p>brackets etc.</p><p> Use the correct tools for the job.</p><p> Keep tools in good condition to avoid slipping.</p><p> Always use appropriate gloves.</p><p> Do not place fingers/hands between tool and nearby parts such as calipers,</p><p>brackets, etc.</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 6 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>13.1 Preparation</p><p>1. Turn the service key to position ‘1’ to set turbine to service mode.</p><p>2. Perform a service stop in the Turbine Access Controller (TAC).</p><p>3. Place a ‘DANGER, DO NOT OPERATE’ tag on the service key. See Figure</p><p>13-1, p. 6.</p><p>4. If the turbine is SCADA equipped, remove SCADA visibility by using the TAC</p><p>display and going to: User parameters > Set alarm call parameters ></p><p>WTG ID No. Record the turbine ID number and then change the ID to 000.</p><p>If needed, the ID can be changed while in the tower to help with troubleshooting</p><p>or to grant access to the turbine TAC controller if required for the task.</p><p>Be sure to restore the original ID in the turbine controller after service is</p><p>complete.</p><p>Figure 13-1: Setting turbine into service mode – turning the service key</p><p>and tagging out</p><p>NOTE</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 7 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>Figure 13-2: Rotor locked in position</p><p>13.2 Replacement of rubber element of the generator</p><p>coupling</p><p>Figure 13-3: Rubber element of the generator coupling</p><p>1 Disc lock 2 Rubber element</p><p>3 Link arm 4 Generator shrink disc</p><p>5 Distance tube</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 8 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>Figure 13-4: Coupling and brake disc view</p><p>1. Remove the link arms (1) from the rubber element and the generator shrink</p><p>disc. See Figure 13-5, p. 8.</p><p>Figure 13-5: Link arms between the rubber element and the generator shrink</p><p>disc</p><p>1 Link arms</p><p>2. Remove the connecting bolts (1) of the rubber element and strip the 2 pieces</p><p>of the rubber element. See Figure 13-6, p. 9.</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 9 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>Figure 13-6: Connecting bolts of the rubber element</p><p>1 Connecting bolts</p><p>3. Move the generator side rubber element in the direction of the generator. See</p><p>Figure 13-7, p. 9.</p><p>Figure 13-7: Generator side rubber element</p><p>4. Release the torque of the bolts (1) which are connected to the distance tube</p><p>and the rubber element. See Figure 13-8, p. 9.</p><p>Figure 13-8: Bolts connected to the distance tube and the rubber element</p><p>1 Bolts</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 10 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>5. Secure the coupling with the hoist and slowly lower the gearbox side rubber</p><p>element to the nacelle floor.</p><p>6. Lift the generator side rubber element and slowly lower the rubber element to</p><p>the nacelle floor.</p><p>7. Split the new coupling.</p><p>8. Make sure that the orientation is correct while you install the rubber element</p><p>of the generator coupling.</p><p>9. Lift the gearbox side rubber element and install the rubber element on the</p><p>distance tube with M16 bolts and nuts.</p><p>10. Lift the generator side rubber element and put the rubber element on the</p><p>generator shrink disc.</p><p>11. Slide the generator side rubber element and install the pin between the 2</p><p>elements.</p><p>12. Install the connecting bolts of the rubber element and tighten the connecting</p><p>bolts.</p><p>13. Install the link arms on the generator shrink disc and the rubber elements.</p><p>14. Install the coupling cover to the coupling.</p><p>13.3 Dismantling the Coupling for V82-1.65 MW Mk 2</p><p>and Newer Mark Versions</p><p>Figure 13-9: Dismantling of link arm</p><p>1 Lock bolt 4 Generator shrink disc</p><p>2 Rubber element 5 Distance tube</p><p>3 Link arm</p><p>15. Hoist the required tools and equipment into the nacelle.</p><p>1</p><p>5</p><p>2 3</p><p>4</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 11 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>Figure 13-10: Brake disc/coupling cover</p><p>Sharp edges in coupling cover!</p><p> Use suitable protective gloves and sleeves while handling the high-speed</p><p>coupling cover.</p><p>16. Dismantle the cover on the coupling and securely hang the cover on the</p><p>generator as shown in Figure 13-10, p. 11.</p><p>17. Mount the lock bolt in the brake disc.</p><p>Figure 13-11: End cover lifting tool attached to the generator lifting ears</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 12 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>Suspended load!</p><p> Do not keep body parts in the drop zone of lifting components.</p><p> Inspect the condition of lifting tool and ratchet lever hoist before use.</p><p> Ensure valid test certificates are available for lifting equipment.</p><p> Attach lifting tools to approved lifting points.</p><p>18. Attach end cover lifting tool to the generator lifting ears using the hardware</p><p>and fittings included with the end cover lifting tool kit. See Figure 13-11, p. 11.</p><p>19.</p><p>Make alignment marks on the H.S. coupling and brake disc for realignment of</p><p>these parts during the reassembly process.</p><p>20. Attach a ratchet lever hoist to the end cover lifting tool pivot arm (this is the</p><p>pivot arm ratchet lever hoist) and wrap the chain around the H.S. coupling</p><p>and hook it to itself.</p><p>Figure 13-12: Brake disc at gearbox side</p><p>21. Dismount the bolts going through the brake disc to the distance tube for the</p><p>coupling (See Figure 13-12, p. 12). Leave one bolt prior to lifting and</p><p>lowering.</p><p>22. Dismantle the bolts from the distance tube to the rubber element.</p><p>23. Gently lift and lower the distance tube. Two technicians must be involved in</p><p>the lifting process.</p><p>24. Lift and lower the coupling element.</p><p>25. Dismantle the link arms by manoeuvring it out with a crowbar when the bolts</p><p>are dismantled.</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 13 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>When remounting the coupling, lift the element up over the generator shrink disc</p><p>and mount the distance tube to the brake disc. Lift the element in place and</p><p>tighten it to the distance tube. Mount the link arm first at the generator and then at</p><p>the coupling. Mount the link arm first in the sides and bottom and then in the top.</p><p>If a link arm is damaged and needs replacement, all link elements must be</p><p>replaced at the same time because they are balanced together.</p><p>13.4 Dismantling the Coupling - NM82/1650, NM72/1650</p><p>1. Hoist the required tools and equipment into the nacelle.</p><p>Figure 13-13: Brake disc/coupling cover</p><p>Sharp edges in coupling cover!</p><p> Use suitable protective gloves and sleeves while handling the high-speed</p><p>coupling cover.</p><p>2. Dismantle the cover on the coupling and securely hang it on the generator as</p><p>shown in Figure 13-13, p. 13.</p><p>3. Detach the brake wear sensor wire from the sensor and remove coils from</p><p>working area.</p><p>NOTE</p><p>NOTE</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 14 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>Figure 13-14: Brake wear sensor</p><p>Figure 13-15: Speed sensor</p><p>and bracket</p><p>4. Remove the brake wear sensor and store it in a safe place. See Figure 13-14,</p><p>p. 14.</p><p>5. Remove the speed sensor, its bracket and spacers from the generator end</p><p>cover and store them under the generator for later use during the bearing</p><p>replacement procedure. See Figure 13-15, p. 14.</p><p>Once removed, keep speed sensor bracket bolts and spacers together with other</p><p>end cover bolts.</p><p>Figure 13-16: Loosening coupling arms</p><p>NOTE</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 15 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>Rotating shaft!</p><p> Do not work on shaft flange or stand on shaft if rotor lock is not installed.</p><p> Do not trust the brake to hold the rotor while working on rotating shafts.</p><p> Always lock rotor before beginning work on any rotating shaft in the turbine.</p><p>6. Loosen but do not remove the bolts holding the H.S. coupling arms to the</p><p>H.S. coupling. See Figure 13-16, p. 14.</p><p>Figure 13-17: Loosening shrink-disc</p><p>7. Loosen the generator shrink disc bolts in a circular fashion and repeat the</p><p>loosening pattern on other bolts until all have been loosened. See Figure</p><p>13-17, p. 15.</p><p>The shrink disc bolts that are already loosened will appear to retighten as other</p><p>bolts are being loosened.</p><p>NOTE</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 16 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>Figure 13-18: H.S. coupling arm with bolts removed</p><p>8. Completely remove H.S. coupling bolts that are next to the rotor lock bolt</p><p>hole. See Figure 13-18, p. 16.</p><p>The bolt(s) behind the locking bolt bracket are inaccessible when the brake is</p><p>locked. See Figure 13-18, p. 16.</p><p>Falling objects due to failure of lifting tool or ratchet lever hoist!</p><p> Do not keep body parts in the drop zone of lifting components.</p><p> Inspect the condition of lifting tool and ratchet lever hoist before use.</p><p> Ensure valid test certificates are available for lifting equipment.</p><p> Attach lifting tools to approved lifting points.</p><p>NOTE</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 17 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>Figure 13-19: End cover lifting tool</p><p>attached to the generator</p><p>lifting ears</p><p>Figure 13-20: End cover lifting tool pivot</p><p>arm ratchet lever hoist lifting</p><p>the H.S. coupling</p><p>9. Attach end cover lifting tool to the generator lifting ears using the hardware</p><p>and fittings included with the end cover lifting tool kit. See Figure 13-19, p. 17.</p><p>10. Make alignment marks on the H.S. coupling and brake disc for realignment of</p><p>these parts during the reassembly process.</p><p>11. Attach a ratchet chain hoist to the end cover lifting tool pivot arm (this is the</p><p>pivot arm ratchet lever hoist) and wrap chain around the H.S. coupling and</p><p>hook it to itself. See Figure 13-20, p. 17.</p><p>12. Remove all but one bolt in the generator and brake disc flange.</p><p>Figure 13-21: Prying H.S. coupling</p><p>arms loose</p><p>Figure 13-22: Lowering H.S. coupling</p><p>shaft to the floor</p><p>13. Using a crow bar, gently release the H.S. coupling arms free of the generator</p><p>hub flange and brake disc. See Figure 13-21, p. 17.</p><p>14. Carefully lower the coupling to the floor with the pivot arm ratchet lever hoist.</p><p>See Figure 13-22, p. 17.</p><p>13.5 Mounting of new high-speed coupling</p><p>Suspended loads!</p><p> Do not perform lifting operation when wind speed exceeds the maximum</p><p>value as per wind speed guidelines for specific jobs.</p><p> Do not stand/work under a suspended load.</p><p> A weather forecast must be made prior to lifting taking place, and the wind</p><p>speed must be monitored on the turbine anemometer or site met mast prior to</p><p>and during the lifting procedure.</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 18 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>Work at Height!</p><p> Only open the crane hatch when technicians inside the nacelle are wearing</p><p>personal fall protection equipment attached to an approved anchorage point.</p><p>Figure 13-23: Re-installing the HS</p><p>coupling</p><p>Figure 13-24: HSS cover and</p><p>speed sensor bracket</p><p>1. Using the pivot arm ratchet lever hoist, lift the H.S. coupling into position.</p><p>2. Re-install the bolts first through the hubs.</p><p>3. Re-install the bolts through the coupling arms, nuts and washers. See Figure</p><p>13-23, p. 18.</p><p>1. Remember to use the alignment marks from section 13.3, step 10.</p><p>2. High-speed coupling arm washers are placed under the nuts with the bevel on</p><p>the inside of the hole in the washer toward the nut.</p><p>4. Torque all H.S. coupling bolts.</p><p>5. Torque all H.S. coupling pivot bolts.</p><p>6. Torque the generator end cover bolts.</p><p>7. Install brackets for the H.S. coupling cover.</p><p>8. Install the speed sensor and torque the attachment bolts.</p><p>9. Re-route and secure speed sensor wiring.</p><p>10. Install the</p><p>brake wear sensor, re-routing and securing its associated wiring.</p><p>11. Install the H.S. shaft cover.</p><p>12. Ensure that the generator alignment is within tolerance. Refer to SWI</p><p>1001477 ‘Service Instruction - Generator’ for more information.</p><p>13. Clean the work area.</p><p>14. Descend from the tower.</p><p>NOTE</p><p>Document no.: 0012-0270 V01</p><p>Replacement of coupling</p><p>Date: 2018-09-28</p><p>Issued by: Technology R&D Class: 2</p><p>Type: T09 – Service Work Instruction Page 19 of 19</p><p>Vestas Wind Systems A/S · Hedeager 42 · 8200 Aarhus N · Denmark · www.vestas.com</p><p>15. Turn the service key to the '0' position.</p><p>16. Record the procedure and parts installed during the procedure in the</p><p>turbine log.</p><p>1 Safety</p><p>2 Educational Requirements of Service Technician</p><p>3 Abbreviations and technical terms</p><p>4 Required documentation</p><p>1</p><p>5 Purpose</p><p>6 Risk Assessment</p><p>7 Note</p><p>8 Tools</p><p>9 Spare Parts</p><p>10 Consumables</p><p>11 Weights</p><p>12 Estimated Time Use</p><p>13 Procedure</p><p>13.1 Preparation</p><p>13.2 Replacement of rubber element of the generator coupling</p><p>1.1</p><p>13.3 Dismantling the Coupling for V82-1.65 MW Mk 2 and Newer Mark Versions</p><p>13.4 Dismantling the Coupling - NM82/1650, NM72/1650</p><p>13.5 Mounting of new high-speed coupling</p>