Hyster A274 Service & Repair Manual
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Hyster A274 Service & Repair Manual

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Hyster A274 (H50CT) Forklift Service Repair Manual

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Summary of Contents for Hyster A274

  • Page 1 Hyster A274 (H50CT) Forklift Service Repair Manual...
  • Page 2 DRIVE AXLE AND DIFFERENTIAL ASSEMBLY REPAIR S50CT [A267]; H2.0-2.5CT (H50CT) [A274] PART NO. 4014306 1400 SRM 1426...
  • Page 3 • Use the correct tools for the job. • Keep the tools clean and in good condition. • Always use HYSTER APPROVED parts when making repairs. Replacement parts must meet or exceed the specifications of the original equipment manufacturer. • Make sure all nuts, bolts, snap rings, and other fastening devices are removed before using force to remove parts.

  • Page 4: Table Of Contents

    Differential Assembly Into Drive Axle Center Section ................Hypoid Gear Backlash, Adjust ......................... Hypoid Gear, Runout Check ........................Gear Set, Tooth Contact Pattern Check....................Torque Specifications ............................This section is for the following models: S50CT [A267]; H2.0-2.5CT (H50CT) [A274] ©2011 HYSTER COMPANY...
  • Page 5 "THE QUALITY KEEPERS" HYSTER APPROVED PARTS...
  • Page 6 Thanks very much for your reading, Want to get more information, Please click here, Then get the complete manual NOTE: If there is no response to click on the link above, please download the PDF document first, and then click on it. Have any questions please write to me: admin@servicemanualperfect.com...

  • Page 7: General

    1400 SRM 1426 General General IDENTIFICATION PLATE This manual covers the repair procedures for the drive axle and differential assembly. There is an identification plate located on the differ- ential assembly cover. See Figure 1. A. FRONT OF TRUCK B. REAR OF TRUCK 1.

  • Page 8: Drive Axle Repair

    Drive Axle Repair 1400 SRM 1426 Drive Axle Repair REMOVE AND DISASSEMBLE CAUTION Disposal of lubricants and fluids must meet lo- WARNING cal environmental regulations. When putting the lift truck on blocks, make 4. Remove oil drain plug and drain oil from drive sure the surface is solid, even, and level.
  • Page 9 1400 SRM 1426 Drive Axle Repair 6. Disconnect brake line connecting master cylinder 12. Remove four drive axle mounting capscrews from to brake manifold located on top of drive axle as- hanger assembly. See Figure 4. sembly. See Figure 4. 13.
  • Page 10 Drive Axle Repair 1400 SRM 1426 1. CAPSCREW 14. BRAKE ASSEMBLY 2. DRIVE AXLE SHAFT 15. LEFT BRAKE LINE 3. LOCKNUT 16. DRIVE AXLE MOUNTING CAPSCREW 4. BEARING LOCKWASHER 17. DRIVE AXLE MOUNTING NUT 5. WASHER 18. DIFFERENTIAL COVER 6. TAPER ROLLER BEARING 19.

  • Page 11: Clean And Inspect

    1400 SRM 1426 Drive Axle Repair CLEAN AND INSPECT shown in Figure 6 to 90 to 99 N•m (66 to 73 lbf ft). Repeat step for opposite side. WARNING Cleaning solvents can be flammable and toxic and can cause skin irritation. When using cleaning solvents, always follow the solvent manufacturer’s recommended safety precau-...
  • Page 12 Drive Axle Repair 1400 SRM 1426 9. Apply adhesive sealant, Loctite® 271, to trans- adding air, use a clip-on chuck with enough mission isolator mounting bolt. Install transmis- hose to let the operator stand clear of the cage. sion isolator mounting bolt and snubbing washer NOTE: When tightening the wheel nuts, DO NOT use into transmission mounting bracket, located on any lubricant on the studs or nuts.
  • Page 13 1400 SRM 1426 Drive Axle Repair 16. Remove air from brake system as described in section Brake System 1800 SRM 1135. 17. Install mast assembly as described in section Mast Repair 4000 SRM 1431. 18. Raise lift truck and remove blocks from under frame and counterweight.

  • Page 14: Differential Repair

    Differential Assembly From Drive Axle Center Section Assembly STEP 1. Using a retainer ring special tool, Hyster Part No. 1663599, loosen the differential retainer rings. If necessary, loosen retainer ring capscrews to allow the retainer rings to turn freely. Remove differential retainer rings and retainer ring capscrews from center section.

  • Page 15: Drive Axle Center Section

    1400 SRM 1426 Differential Repair STEP 2. Remove differential assembly cover capscrews and remove differential assembly cover. 1. DIFFERENTIAL ASSEMBLY COVER CAPSCREWS 2. DIFFERENTIAL ASSEMBLY COVER 3. DIFFERENTIAL ASSEMBLY 4. DRIVE AXLE CENTER SECTION STEP 3. Remove differential assembly from drive axle center section.
  • Page 16 Differential Repair 1400 SRM 1426 Drive Pinion, Pinion Gear, and Bearings From Drive Axle Center Section STEP 1. Remove capscrews, washers, and pinion cover. 1. CAPSCREW 2. WASHER 3. PINION COVER 4. PINION NUT 5. DRIVE AXLE CENTER SECTION CAUTION When removing the pinion nut, make sure the staked areas do not touch the pinion threads.
  • Page 17 1400 SRM 1426 Differential Repair STEP 3. Remove input shaft (yoke), oil seal, and dust cover from drop box housing. 1. INPUT SHAFT (YOKE) 2. DUST COVER 3. OIL SEAL STEP 4. Remove capscrews and washers from the drop box housing.

  • Page 18: Drop Box Housing

    Differential Repair 1400 SRM 1426 STEP 5. Install two capscrews removed in STEP 4 in location shown. Tighten each capscrew alternately, until drop box housing can be removed. If the capscrews do not have enough threaded length, use a pry bar to finish removing the housing.
  • Page 19 1400 SRM 1426 Differential Repair NOTE: When removing pinion shaft, be sure to retain the shims. STEP 7. Carefully remove pinion shaft assembly from drive axle center section. Using a press and bearing puller, remove inner shims and inner tapered roller bearing from pinion shaft assembly.
  • Page 20 Differential Repair 1400 SRM 1426 STEP 9. Using a press or suitable soft drift, remove the outer tapered roller bearing cup from drop box housing. 1. OUTER TAPERED ROLLER BEARING CUP 2. DROP BOX HOUSING STEP 10. Using a suitable soft drift, remove the pinion inner tapered roller bearing cup.

  • Page 21: Differential Assembly

    1400 SRM 1426 Differential Repair DISASSEMBLE Differential Assembly STEP 1. Remove the bearing cups. Using a suitable bearing puller, remove the tapered roller bearings from the differential assembly. 1. BEARING CUP 2. TAPERED ROLLER BEARING 3. DIFFERENTIAL ASSEMBLY STEP 2. Remove the capscrews and hypoid gear from differ- ential assembly case.

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H50ct

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