Flange Mounted Enclosed Clutch with Spring Engaged Brake

Transcription

1 Flange Mounted Enclosed Clutch with Spring Engaged Brake FMCBES Models 5, 875, 5 and 75 FORM NO. L-078-N-05 FORM NO. L-078-N-05

2 In accordance with Nexen s established policy of constant product improvement, specifications contained in this manual are subject to change without notice. Technical data listed in this manual are based on latest information available at time of printing and are also subject to change without notice. Technical Support: (5) DANGER Read this manual carefully before installation and operation. Follow Nexen s instructions and integrate this unit into your system with care. This unit should be installed, operated and maintained by qualified personnel ONLY. Improper installation can damage your system, cause injury or death. Comply with all applicable codes. This document is original, non-translated, version. Conformity Declaration: In accordance with Appendix II B of CE Machinery Directive (00/4/EC): A Declaration of Incorporation of Partly Completed Machinery evaluation for applicable EU directives was carried out for this product in accordance with Machinery Directive. The declaration of incorporation is set out in writing in a separate document and can be requested if required. This machinery is incomplete and must not be put into service until machinery into which it is to be incorporated has been declared in conformity with applicable provisions of Directive. Nexen Group, Inc. 50 Oak Grove Parkway Vadnais Heights, Minnesota 557 Copyright 0 Nexen Group, Inc. ISO 900 Certified FORM NO. L-078-N-05

3 Table of Contents General Specifications General Safety Precautions Installation: FMCBES Mounted on Shaft End of a Motor FMCBES Mounted Between a Gear Reducer and a Motor Lubrication Air Connections Troubleshooting Parts Replacement: Friction Facings Female Pilot Bearing Bearing, O-Ring Seals and Compression Springs Male Pilot Bearings and O-Ring Seals Input Unit Replacement Parts Parts List: FMCBES FMCBES FMCBES FMCBES Input Unit Warranty FORM NO. L-078-N-05

4 GENERAL SPECIFICATIONS Size Brake Torque (in-lbs) Clutch Torque (in-lbs) Weight "Min. Disengagement Air Pressure (Brake)" "Max. Engagement Air Pressure (Clutch)" GENERAL SAFETY PRES Use lifting aids and proper lifting techniques when installing, removing, or placing this product in service. Watch for sharp features when interacting with this product. The parts have complex shapes and machined edges. WARNING Ensure proper guarding of product is used. Nexen recommends machine builder design guarding in compliance with OSHA 9 CFR 90 Occupational Safety and Health Hazards. Use appropriate guarding for moving components. Failure to guard could result in serious bodily injury. WARNING This product is capable of emitting a spark if misused refore is not recommended for use in any explosive environment. The temperature limits for product are C (40-0 F). Working with spring loaded or tension loaded fasteners and devices can cause injury. Wear safety glasses and take appropriate safety precautions. Use appropriate guarding for moving components. Failure to guard could result in serious bodily injury. Surface temperature may exceed safe handling limits during operation. Do not touch. FORM NO. L-078-N-05 4

5 INSTALLATION FMCBES MOUNTED ON THE SHAFT END OF A MOTOR. Insert customer supplied key into motor shaft keyway (See Figure ).. Slide Female Pilot (Item ) onto motor shaft, n secure it to motor using customer supplied socket head cap screws and lock washers (See Figure ).. Tighten Set Screw (Item ) (See Figure ). Set Screw (Item ) Customer supplied key Motor Socket Head Cap Screw (Item 8) FMCBES Housing 4. Apply a drop of Loctite 4 to threads of four Socket Head Cap Screws (Item 8) (See Figure ). 5. Using four Socket Head Cap Screws (Item 8), secure FMCBES Housing to Female Pilot (Item ) (See Figure ).. Tighten four Socket Head Caps Screws (Item 8) to recommended torque (See Table ). FIGURE FMCBES MODEL TABLE Female Pilot (Item ) Customer supplied socket head cap screws and lock washers RECOMMENDED TIGHTENING TORQUE SOCKET HEAD CAP SCREW FMCBES MOUNTED BETWEEN A GEAR REDUCER AND A MOTOR. Insert Key (Item 5) into output shaft of FMCBES (See Figure ).. Slide FMCBES output shaft into gear reducer (See Figure ).. Secure FMCBES to gear reducer using customer supplied socket head cap screws, lock washers, and nuts (See Figure ). Socket Head Cap Screw (Item 8) Set Screw (Item ) Customer supplied key Customer supplied socket head cap screws and lock washer Key (Item 5) 4. Slide Female Pilot (Item ) onto motor shaft, n secure it to motor using customer supplied socket head cap screws and lock washers (See Figure ). 5. Tighten Set Screw (Item ) (See Figure ).. Apply a drop of Loctite 4 to threads of four Socket Head Cap Screws (Item 8). 7. Using four Socket Head Cap Screws (Item 8), secure FMCBES Housing to Female Pilot (Item ) (See Figure ). 8. Tighten four Socket Head Caps Screws (Item 8) to recommended torque (See Table ). Motor FIGURE FMCBES MODEL TABLE Female Pilot (Item ) Gear Reducer FMCBES Housing Customer supplied socket head cap screws and lock washers RECOMMENDED TIGHTENING TORQUE SOCKET HEAD CAP SCREW 5 (item 8) 7-78 in.- Lbs. [-0 N m] 875 (item 8) 7-78 in.- Lbs. [-0 N m] 5 (item 8) -0 in.- Lbs. [-4 N m] 75 (item 8) 509- in.- Lbs. [57-75 N m] 5 (item 8) 7-78 in.- Lbs. [-0 N m] 875 (item 8) 7-78 in.- Lbs. [-0 N m] 5 (item 8) -0 in.- Lbs. [-4 N m] 75 (item 8) 509- in.- Lbs. [57-75 N m] 5 FORM NO. L-078-N-05

6 LUBRICATION Nexen pneumatically actuated devices require clean, pressure regulated air for maximum performance and life. All seals in Nexen Pneumatically operated devices are lubricated for life and do not require additional lubrication. However, some customers prefer to use an air line lubricator, which injects oil into pressurized air, forcing an oil mist into air chamber. This is acceptable, but care must be taken to ensure once an air mist lubrication system is used, it is continually used over life of product as oil mist may wash free factory installed lubrication. Locate lubricator above and within ten feet of product, and use low viscosity oil such as SAE-0. Syntic lubricants are not recommended. Nexen product s bearings are shielded and pre-lubricated, and require no furr lubrication. LUBRICATOR DRIP RATE SETTINGS These settings are for Nexen supplied lubricators. If you are not using a Nexen lubricator, calibration must follow manufacturer s suggested procedure.. Close and disconnect air line from unit.. Turn Lubricator Adjustment Knob counterclockwise three complete turns. 4. Close air line to unit when a drop of oil forms in Lubricator Sight Gage. 5. Connect air line to unit.. Turn Lubricator Adjustment Knob clockwise until closed. 7. Turn Lubricator Adjustment Knob counterclockwise one-third turn. 8. Open air line to unit.. Open air line. AIR CONNECTIONS All Nexen pneumatically actuated devices require clean and dry air, which meet or exceeds ISO 857.:00 Class 4.4. quality. For quick response, Nexen recommends a quick exhaust valve and short air lines between Control Valves and unit. Align air inlet ports to a down position to allow condensation to drain out of air chambers of product. Low air pressure will cause slippage and overheating. Excessive air pressure will cause abrupt starts and stops, reducing product life. FORM NO. L-078-N-05

7 7 FORM NO. L-078-N-05 TROUBLESHOOTING Ball Bearing Spring Pin Key Stub Shaft Piston Ball Bearing Ball Bearings Splined Disc Female Pilot Housing Male Pilot O-ring Seals Air Chamber Drive Disc Friction Facings Air to Clutch Compression Spring FIGURE YMPTOM S E ROBABLE CAUS P N SOLUTIO (clutch). engage to Failure control a to FMCBES due to getting not Air malfunction. valve low air or malfunction valve control a for Check if valve control replace and pressure necessary. spline. Shaft Stub on lubrication of ack L. Never-Seez with spline Shaft Stub Lubricate Seals. O-ring around leaks ir A. Seals O-ring Replace (brake). engage to ailure F. Springs Compression broken or eak W. Springs Compression Replace spline. Shaft Stub on lubrication of ack L. spline Shaft Stub Lubricate (clutch). disengage to Failure valve control a to due air Unexhausted malfunction. and malfunction valve control a for Check necessary. if valve control replace spline. Shaft Stub on lubrication of ack L. Never-Seez with spline Shaft Stub Lubricate (brake). disengage to Failure control a to FMCBES due to getting not Air malfunction. valve low air or malfunction valve control a for Check if valve control replace and pressure necessary. spline. Shaft Stub on lubrication of ack L. spline Shaft Stub Lubricate torque. of Loss Seals. O-ring around leaks ir A. Seals O-ring Replace Facings. Friction dirty or orn W. Facings Friction Replace Springs. Compression broken or eak W. Springs Compression Replace

8 PARTS REPLACEMENT FRICTION FACINGS FMCBES 5, 875, 5, AND 75. Remove four Socket Head Cap Screws (Item 4) and separate two halves of FMCBES (See Figure 4). Socket Head Cap Screw (Item 4) The Flat Head Machine Screws are assembled with an anaerobic locking compound. Inserting a properly fitting screwdriver into head of Flat Head Machine Screw and striking end of screwdriver with a hammer will break crystalline structure of this locking compound and allow removal of Flat Head Machine Screws. Never use an impact wrench to remove Flat Head Machine Screws.. Remove six old Flat Head Screws (Item ) and first old split Friction Facing (Item ) (See Figure 5). Apply sufficient air pressure to brake to release brake portion of FMCBES. FIGURE 4 Insert screwdriver to remove second split Friction Facing.. Align holes in Splined Disc (Item 9) with Flat Head Screws (Item ) that secure second split Friction Facing (Item ) (See Figure 5). 4. Remove six old Flat Head Screws (Item ) and second old Friction Facing (Item ) (See Figure 5). 5. Install first new split Friction Facing (Item ) and new Flat Head Screws (Item ).. Tighten six new Flat Head Screws (Item ) to recommended torque (See Table ). Release air pressure to FMCBES. 7. Install second new split Friction Facing (Item ) and new Flat Head Screws (Item ) (See Figure 5). 8. Tighten six new Flat Head Screws (Item ) to recommended torque (See Table ). 9. Apply a drop of Loctite 4 to threads of Socket Head Cap Screws (Item 4) (See Figure 4). 0. Install and tighten four Socket Head Cap Screws (Item 4), securing two halves of FMCBES to recommended torque (See Figure 4 and Table ). FIGURE 5 FMCBES Model 5 (Item 4) 875 (Item 4) 5 (Item 4) 75 (Item 4) TABLE Recommended Torque Socket Head Cap Screws -0 In. Lbs. [-4 Nm] -0 In. Lbs. [-4 Nm] -0 In. Lbs. [-4 Nm] 509- In. Lbs. [57-75 Nm] Splined Disc (Item 9) Facing Screw Torque (Item ) In. Lbs. (.9 Nm) In. Lbs. (.9 Nm) 7 In. Lbs. (8.0 Nm) 7 In. Lbs. (8.0 Nm) FORM NO. L-078-N-05 8

9 PARTS REPLACEMENT FEMALE PILOT BEARING FMCBES 5, 875, 5, AND 75. Remove four Socket Head Cap Screws (Item 8) and slide Female Pilot (Item ), Bearing (Item ), and Drive Disc (Item 4) out of FMCBES (See Figure ). If an Input Unit is installed on FMCBES, it must be removed before servicing FMCBES. Remove Plug (Item 7) and loosen Set Screw (Item ) to release FMCBES from Input Unit shaft (See Figure ) Working with spring loaded or tension loaded fasteners and devices can cause injury. Wear safety glasses and take appropriate safety precautions.. Remove Retaining Ring (Item ) (See Figure ).. Press Drive Disc (Item 4) out of Bearing (Item ) and Female Pilot (Item ) (See Figure ). 4. Remove Retaining Ring (Item ) (See Figure ). 5. Fully supporting Female Pilot (Item ), press old Bearing (Item ) out of Female Pilot (Item ) (See Figure ). Do not reuse bearing. Applying force to inner bearing race to remove a bearing held by outer race causes damage to bearing.. Clean bearing bore of Female Pilot (Item ) with fresh safety solvent, making sure all old Loctite residue is removed (See Figure ). 7. Apply an adequate amount of Loctite 80 to evenly coat outer race of new Bearing (Item ) (See Figure ). FIGURE FMCBES MODEL TABLE 4 RECOMMENDED TIGHTENING TORQUE SOCKET HEAD CAP SCREW 5 (item 8) 7-78 in.- Lbs. [-0 N m] 875 (item 8) 7-78 in.- Lbs. [-0 N m] 5 (item 8) -0 in.- Lbs. [-4 N m] 75 (item 8) 509- in.- Lbs. [57-75 N m]. Support inner race of new Bearing (Item ) and press Drive Disc (Item 4) into new Bearing and Female Pilot (Item ) (See Figure ).. Reinstall Retaining Ring (Item ) (See Figure ).. Apply a drop of Loctite 4 to threads of Socket Head Cap Screws (Item 8) (See Figure ). 4. Slide Female Pilot (Item ), Bearing (Item ), and Drive Disc (Item 4) into FMCBES and reinstall four Socket Head Cap Screws (Item 8) (See Figure ). 5. Tighten four Socket Head Cap Screws (Item 8) to recommended torque (See Table 4). 8. Carefully align outer race of new Bearing (Item ) with bore of Female Pilot (Item ) (See Figure ). 9. Supporting Female Pilot (Item ) and pressing on outer race of new Bearing (Item ), press new Bearing into Female Pilot (See Figure ). 0. Reinstall Retaining Ring (Item ) (See Figure ). 9 FORM NO. L-078-N-05

10 PARTS REPLACEMENT BEARING, O-RING SEALS, AND COMPRESSION SPRINGS. Remove four Socket Head Cap Screws ( Item 4) and separate Air Chamber (Item ) from Housing (Item 7) (See Figure 7).. Remove four Socket Head Cap Screws (Item 4) securing Male Pilot (Item 8) to Air Chamber (Item ) (See Figure 7).. Remove Male Pilot (Item 8) and Stub Shaft (Item 4) from Air Chamber (Item ) (See Figure 7). Note The Piston is spring loaded and under extreme pressure. Working with spring loaded or tension loaded fasteners and devices can cause injury. Wear safety glasses and take appropriate safety precautions. 4. Using a C -clamp or Arbor press fixture, press Piston (Item 5) into Air Chamber (Item ); n, remove Retaining Ring (Item ) from Splined Disc (Item 9) (See Figure 8). 5. Slowly remove C -clamp or release Arbor press.. Press Splined Disc (Item 9) from Bearing (Item ) (See Figure 8). 7. Remove Piston (Item 5) and Compression Springs (Item 7) from Air Chamber (Item ) (See Figure 8). 8. Remove Retaining Ring (Item ) from Piston (See Figure 8). 9. Remove old O-ring Seal (Item ) from Piston (See Figure 8). 0. Press Bearing (Item ) out of Piston (Item 5) (See Figure 8).. Clean bearing bore of Piston with fresh safety solvent, making sure all old Loctite residue is removed.. Apply an adequate amount of Loctite 80 to evenly coat outer race of new Bearing.. Carefully align outer race of new Bearing (Item ) with bore of Piston (Item 5) (See Figure 8). 4. Supporting Piston and pressing on outer race of new Bearing, press new Bearing into Piston. 5. Reinstall Retaining Ring (Item ), securing Bearing to Piston. 7 FIGURE 7 9 FIGURE 8 TABLE 5 FMCBES MODEL 4 RECOMMENDED TORQUE SOCKET HEAD CAP SCREWS 5 (Item 4) -0 in.- Lbs. [-4 N m] 875 (Item 4) -0 in.- Lbs. [-4 N m] 5 (Item 4) -0 in.- Lbs. [-4 N m] 75 (Item 4) 509- in.- Lbs. [57-75 N m]. Coat O-ring contact surfaces of Air Chamber, Piston, and O-ring Seals with a thin film of O-ring lubricant and install new O-ring Seals (item ) (See Figure 8). 7. Reinstall Compression Springs (Item 7) into Piston (Item 5) (See Figure 8). 8. Slide Piston (Item 5) into Air Chamber (Item ) (See Figure 8). 9. Support inner race of new Bearing and press Splined Disc into new Bearing and Piston. 0. Use a C -clamp or Arbor press fixture to compress Piston (Item 5) into Air Chamber (Item ); n, reinstall Retaining Ring (Item ) that secures Splined Disc to Bearing.. Remove C -clamp or release Arbor press.. Apply a drop of Loctite 4 to threads of Socket Head Cap Screws (Item 4) (See Figure 7).. Reinstall and tighten four Socket Head Cap Screws, securing Air Chamber (Item ) to Housing (Item 7) to recommended torque (See Figure 7 and Table 5) FORM NO. L-078-N-05 0

11 PARTS REPLACEMENT-MALE PILOT BEARINGS AND O-RING SEALS. Remove O-ring Seals (Items and ) from Male Pilot (Item 8) (See Figures 9 and 0). 8 Working with spring loaded or tension loaded fasteners and devices can cause injury. Wear safety glasses and take appropriate safety precautions Remove Retaining Ring (Item 8) from Stub Shaft (Item 4) (See Figure 9).. Press Stub Shaft (Item 4) out of Male Pilot (Item 8) (See Figure 9). One old Bearing (Item 0) will remain attached to Stub Shaft (Item 4) (See Figure 9). FIGURE 9 Align Slotted Spring Pin with hole in Piston. 8 8/4 4. Press old Bearing from Stub Shaft (Item 4) (See Figure 9). 5. Press or old Bearing out of Male Pilot (Item 8) (See Figure 9). It is not necessary to remove Retaining Ring from inside of Male Pilot.. Clean bearing bore of Male Pilot with fresh safety solvent, making sure all old Loctite residue is removed. 7. Apply an adequate amount of Loctite 80 to evenly coat outer race of one new Bearing; n, press it into output side of Male Pilot until it is seated against Retaining Ring inside Male Pilot (See Figure 9). 8. Press a new Bearing onto Stub Shaft (Item 4) (See Figure 9). 9. Apply an adequate amount of Loctite 80 to evenly coat outer race of second new Bearing. 0. Carefully align outer race of new Bearing with bore of Male Pilot; n, pressing on outer race of this Bearing and supporting inner race of new Bearing already in Male Pilot, press new Bearing and Stub Shaft into Male Pilot until it is seated against Retaining Ring inside Male Pilot (See Figure 9). FIGURE 0 FMCBES MODEL TABLE Apply a thin film of NEVER-SEEZ to spline of Stub Shaft (Item 4). RECOMMENDED TORQUE SOCKET HEAD CAP SCREWS 5 (Item 4) -0 in.- Lbs. [-4 N m] 875 (Item 4) -0 in.- Lbs. [-4 N m] 5 (Item 4) -0 in.- Lbs. [-4 N m] 75 (Item 4) 509- in.- Lbs. [57-75 N m]. Apply a thin film of NEVER-SEEZ to spline of Stub Shaft (Item 4); n, align Pin on Male Pilot with hole in Piston and slide Male Pilot and Stub Shaft into FMCBES (See Figure 0). 4. Apply a drop of Loctite 4 to threads of four Socket Head Cap Screws (Item 4). 5. Reinstall four Socket Head Cap Screws (Item 4), securing Male Pilot (Item 8) to Air Chamber (Item ) (See Figure 0).. Alternately and evenly tighten four Socket Head Cap Screws (Item 4) to recommended torque (See Table ).. Reinstall Retaining Ring (Item 8) (See Figure 9).. Coat O-ring contact surfaces of Male Pilot, Piston, and new O-ring Seals (Items and ) with a thin film of fresh O-ring lubricant and install new O-ring Seals onto Male Pilot (See Figures 9 and 0). FORM NO. L-078-N-05

12 PARTS REPLACEMENT-INPUT UNIT Remove Plug (Item 7) and loosen Set Screw (Item ) one full turn to release Input Unit from FMCBES. Both Plug (Item 7) and Set Screw (Item ) are located on FMCBES Housing.. Remove socket head cap screws and Hex. head nuts securing Input Unit to FMCBES; n, remove Input Unit from FMCBES Working with spring loaded or tension loaded fasteners and devices can cause injury. Wear safety glasses and take appropriate safety precautions. FIGURE 0. Remove Retaining Ring (Item 5) from output end of Input Unit (See Figure ).. Fully supporting Flange (Item 0), press Shaft (Item ) out of Input Unit (See Figure ). It is not necessary to remove retaining rings from inside of flange. One Bearing (Item 0) will come out of Flange (Item 0) with Shaft (Item ) (See Figure ). 4. Press old Bearing (Item 0) out of Flange (Item 0) (See Figure ). 5. Press old Bearing (Item 0) off Shaft (Item ) (See Figure ). Do not reuse old Bearings (Item 0). Applying force to inner race of a bearing to remove a bearing held by outer race causes damage to bearing.. Clean bearing bore of Flange (Item 0) with fresh safety solvent, making sure all old Loctite residue is removed. 7. Press one new Bearing (Item 0) onto Shaft (Item ) until it is seated against retaining ring on Shaft (See Figure ). 8. Apply an adequate amount of Loctite 80 to evenly coat outer race of second new Bearing (Item 0) (See Figure ). 9. Carefully align outer race of this new bearing with bore of Flange (Item 0) and press this Bearing into output end of Flange until it is seated against retaining ring inside Flange (See Figure ). 0. Apply an adequate amount of Loctite 80 to evenly coat outer race of new Bearing (Item 0) previously pressed onto Shaft (Item ) (See Figure ).. Support inner race of new Bearing (Item 0) inside Flange (Item 0); n, pressing on inner and outer race of Bearing (Item 0) on Shaft (Item ), press new Bearing and Shaft into Flange and Bearing until y are seated against Retaining Ring (Item 58) (See Figure ).. Reinstall Retaining Ring (Item 5) (See Figure ). REPLACEMENT PARTS The item or balloon number for all Nexen products is used for part identification on all product parts lists, product price lists, unit assembly drawings, bills of materials, and instruction manuals. When ordering replacement parts, specify model designation, item number, part description, and quantity. Purchase replacement parts through your local Nexen Distributor. FORM NO. L-078-N-05

13 PARTS LIST FMCBES FMCBES FIGURE 7 5 ITEM DESCRIPTION QTY Female Pilot Bearing Retaining Ring (Int.) 4 Drive Disc 5 Retaining Ring (Int.) Retaining Ring (Ext.) 7 Housing 8 Socket Head Cap Screw 4 9 Splined Disc Friction Facing Flat Head Screw Air Chamber 4 Socket Head Cap Screw 8 5 Piston O-ring Seal ITEM DESCRIPTION QTY 7 Compression Spring 8 Male Pilot 9 Retaining Ring (Int.) 0 Bearing Spring Pin O-ring Seal O-ring Seal 4 Stub Shaft 5 4 Key (Not Shown) Set Screw 7 Plug 8 Ret. Ring 9 4 Socket Head Cap Screw (Not Shown) Lock Washer (Not Shown) 4 Denotes Repair Kit items. Repair Kit No Denotes Facing Kit items. Facing Kit No Items 9 and are part of subassembly #8, Male Pilot. 4 Items 5, 9 and 0 are included in assembly kit #48. FORM NO. L-078-N-05

14 PARTS LIST FMCBES FMCBES FIGURE 7 ITEM DESCRIPTION QTY Female Pilot Bearing Retaining Ring (Int.) 4 Drive Disc 5 Retaining Ring (Int.) Retaining Ring (Ext.) 7 Housing 8 Socket Head Cap Screw 4 9 Splined Disc Friction Facing Flat Head Screw Air Chamber 4 Socket Head Cap Screw 8 5 Piston O-ring Seal ITEM DESCRIPTION QTY 7 Compression Spring 8 8 Male Pilot 9 Retaining Ring (Int.) 0 Bearing Spring Pin O-ring Seal O-ring Seal 4 Stub Shaft 5 4 Key (Not Shown) Set Screw 7 Plug 8 Ret. Ring 9 4 Socket Head Cap Screw (Not Shown) Lock Washer (Not Shown) 4 Denotes Repair Kit items. Repair Kit No Denotes Facing Kit items. Facing Kit No Items 9 and are part of subassembly #8, Male Pilot. 4 Items 5, 9 and 0 are included in assembly kit #48. FORM NO. L-078-N-05 4

15 PARTS LIST FMCBES FMCBES FIGURE 4 ITEM DESCRIPTION QTY Female Pilot Bearing Retaining Ring (Int.) 4 Drive Disc 5 Retaining Ring (Int.) Retaining Ring (Ext.) 7 Housing 8 Socket Head Cap Screw 4 9 Splined Disc Friction Facing Flat Head Screw Air Chamber 4 Socket Head Cap Screw 8 5 Piston O-ring Seal Denotes Repair Kit items. Repair Kit No ITEM DESCRIPTION QTY 7 Compression Spring 8 Male Pilot 9 Retaining Ring (Int.) 0 Bearing Spring Pin O-ring Seal O-ring Seal 4 Stub Shaft 5 Key (Not Shown) Set Screw 7 Plug 8 Ret. Ring 9 Socket Head Cap Screw (Not Shown) 4 0 Lock Washer (Not Shown) 4 Denotes Facing Kit items. Facing Kit No FORM NO. L-078-N-05

16 PARTS LIST FMCBES FMCBES FIGURE 5 ITEM DESCRIPTION QTY Female Pilot Bearing Retaining Ring (Int.) 4 Drive Disc 5 Retaining Ring (Int.) Retaining Ring (Ext.) 7 Housing 8 Socket Head Cap Screw 4 9 Splined Disc Friction Facing Flat Head Screw Air Chamber 4 Socket Head Cap Screw 8 5 Piston O-ring Seal Denotes Repair Kit items. Repair Kit No ITEM DESCRIPTION QTY 7 Compression Spring 8 Male Pilot 9 Retaining Ring (Int.) 0 Bearing Spring Pin O-ring Seal O-ring Seal 4 Stub Shaft 5 Key (Not Shown) Set Screw 7 Plug 8 Ret. Ring 9 Socket Head Cap Screw (Not Shown) 4 0 Lock Washer (Not Shown) 4 Denotes Facing Kit items. Facing Kit No FORM NO. L-078-N-05

17 PARTS LIST INPUT UNIT ITEM DESCRIPTION QTY 58 Shaft 9 Key 0 Flange 0 Bearing 5 Retaining Ring (Ext.) 45 Jam Nut (Not Shown) 58 Retaining Ring (Int.) Denotes Input Unit Repair Kit item. FMCBE 5 Input Unit Repair Kit No FMCBE 875 Input Unit Repair Kit No FMCBE 5 Input Unit Repair Kit No FMCBE 75 Input Unit Repair Kit No FIGURE FORM NO. L-078-N-05

18 WARRANTY Warranties Nexen warrants that Products will (a) be free from any defects in material or workmanship for a period of months from date of shipment, and (b) will meet and perform in accordance with specifications in any engineering drawing specifically for Product that is in Nexen s current product catalogue, or that is accessible at Nexen website, or that is attached to this Quotation and that specifically refers to this Quotation by its number, subject in all cases to any limitations and exclusions set out in drawing. NEXEN MAKES NO OTHER WARRANTY, EXPRESS OR IMPLIED, AND ALL IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. This warranty applies only if: (a) Product has been installed, used and maintained in accordance with any applicable Nexen installation or maintenance manual for Product; (b) alleged defect is not attributable to normal wear and tear; (c) Product has not been altered, misused or used for purposes or than those for which it was intended; and (d) Buyer has given written notice of alleged defect to Nexen, and delivered allegedly defective Product to Nexen, within one year of date of shipment. Exclusive Remedy The exclusive remedy for Buyer for any breach of any warranties provided in connection with this agreement will be, at election of Nexen: (a) repair or replacement with new, serviceably used, or reconditioned parts or products; or (b) issuance of credit in amount of purchase price paid to Nexen by Buyer for Products. Agent's Authority Buyer agrees that no agent, employee or representative of Nexen has authority to bind Nexen to any affirmation, representation, or warranty concerning Products or than those warranties expressly set forth herein. Limitation on Nexen s Liability TO THE EXTENT PERMITTED BY LAW NEXEN SHALL HAVE NO LIABILITY TO BUYER OR ANY OTHER PERSON FOR INCIDENTAL DAMAGES, SPECIAL DAMAGES, CONSEQUENTIAL DAMAGES OR OTHER DAMAGES OF ANY KIND OR NATURE WHATSOEVER, WHETHER ARISING OUT OF BREACH OF WARRANTY OR OTHER BREACH OF CONTRACT, NEGLIGENCE OR OTHER TORT, OR OTHERWISE, EVEN IF NEXEN SHALL HAVE BEEN ADVISED OF THE POSSIBILITY OR LIKELIHOOD OF SUCH POTENTIAL LOSS OR DAMAGE. For all of purposes hereof, term "consequential damages" shall include lost profits, penalties, delay damages, liquidated damages or or damages and liabilities which Buyer shall be obligated to pay or which Buyer may incur based upon, related to or arising out of its contracts with its customers or or third parties. In no event shall Nexen be liable for any amount of damages in excess of amounts paid by Buyer for Products or services as to which a breach of contract has been determined to exist. The parties expressly agree that price for Products and services was determined in consideration of limitation on damages set forth herein and such limitation has been specifically bargained for and constitutes an agreed allocation of risk which shall survive determination of any court of competent jurisdiction that any remedy herein fails of its essential purpose. Inspection Buyer shall inspect all shipments of Products upon arrival and shall notify Nexen in writing, of any shortages or or failures to conform to se terms and conditions which are reasonably discoverable upon arrival without opening any carton or box in which Products are contained. Such notice shall be sent within 4 days following arrival. All notifications shall be accompanied by packing slips, inspection reports and or documents necessary to support Buyer's claims. In addition to foregoing obligations, in event that Buyer receives Products that Buyer did not order, Buyer shall return erroneously shipped Products to Nexen within thirty (0) days of date of invoice for such Products; Nexen will pay reasonable freight charges for timely return of erroneously shipped Products, and issue a credit to Buyer for returned Products at price Buyer paid for m, including any shipping expenses that Nexen charged Buyer. All shortages, overages and nonconformities not reported to Nexen as required by this section will be deemed waived. Limitation on Actions No action, regardless of form, arising out of any transaction to which se terms and conditions are applicable may be brought by Buyer more than one year after cause of action has accrued. Nexen Group, Inc. 50 Oak Grove Parkway Vadnais Heights, MN Fax: ISO 900 Certified FORM NO. L-078-N-05 8