725, 730 and 730 EJECTOR Articulated Trucks Power Train Caterpillar

Removal Procedure

Start By:

1. Remove the stabilizer rod for the rear axle. Refer to Disassembly and Assembly, RENR3447, "Rear Axle Stabilizer Rod - Remove and Install".

1. Turn off the engine. Apply the foot brake several times in order to relieve the pressure in the brake system.

2. Park the machine on a hard, level surface. Chock the wheels in order to prevent the machine from moving.

3. Drain the oil from the rear axle housing. Refer to Operation and Maintenance Manual, "Differential and Final Drive Oil - Change".
   Show/hide table

   Personal injury can result from driveline torque windup under load. Unequal wheel speed can result in driveline torque windup which can cause driveline components to be under load during disassembly. Relieve the driveline torque windup before disassembly.

4. Release the contained energy in the driveline by raising either side of the machine until the wheels are off the ground. Lower the wheels back to the ground.

5. Chock the wheels in order to stabilize the machine for maintenance.
   Show/hide table

   Illustration 1	g00523091

6. Place an appropriate floor jack under drive shaft (1). Use tie straps in order to secure the universal joint to the floor jack.
   Show/hide table

   Illustration 2	g00523092

7. Remove four bolts (3) in order to disconnect drive shaft (1) from rear axle (2).
   Show/hide table

   Illustration 3	g00523093

8. Remove four bolts (5) in order to disconnect drive shaft (1) from center axle (4).

9. Use the floor jack in order to lower the drive shaft from the machine. The drive shaft weighs 23 kg (50 lb).
   Show/hide table

   Illustration 4	g00523095

10. Remove four bolts (7) in order to remove drive shaft universal joint (6) from drive shaft (1).
    Show/hide table

    Illustration 5	g00523096

11. Remove four bolts (9) in order to remove drive shaft universal joint (8) from drive shaft (1).
    Show/hide table

    Illustration 6	g00524749

12. Disconnect hydraulic line (10) from the rear axle housing. Hydraulic line (10) will stay connected to rear suspension frame (11).
    Show/hide table

    Illustration 7	g00524991

13. Remove hose clamp (12) that secures hydraulic hose (13) to differential (14). Disconnect hydraulic hose (13) from differential (14).
    Show/hide table

    Illustration 8	g00524711

14. Attach Tooling (A), Tooling (B) and a hoist to dump body (15), as shown. Apply a slight tension on the lifting slings. Position an appropriate floor jack under the shaft yoke on the rear axle housing.
    Show/hide table

    Illustration 9	g00524761

15. Remove four bolts (16) and the washers that secure axle housing (19) to mounting plate (17). Remove four bolts (18) and the washers that secure axle housing (19) to rear suspension frame (11).
    Show/hide table

    Illustration 10	g00524945

16. Remove four bolts (22) and the washers that secure bracket (23) and axle housing (19) to rear suspension frame (11). Remove bracket (23) from axle housing (19).

17. Remove four bolts (20) and the washers that secure axle housing (19) to mounting plate (21).
    Show/hide table

    Illustration 11	g00524716

18. Use the hoist in order to raise the dump body enough to access hydraulic hose (25). Disconnect hydraulic hose (25) from brake line (24).
    Show/hide table

    Illustration 12	g00524946

19. Use the hoist in order to raise the dump body enough for removal of axle housing (19). Use floor jack (26) in order to lower the shaft yoke on axle housing (19). Rotate the wheels in order to remove axle housing (19) from the machine.