R1700G LH.D. MACHINE SYSTEMS Caterpillar


Lift Arms - Remove

Usage:

Removal Procedure

Start By:

a. Install the steering frame lock pin. Refer to Disassembly and Assembly, "Steering Frame Lock Pin - Remove and Install" for the machine that is being serviced.

b. Remove the bucket. Refer to Disassembly and Assembly, "Bucket - Remove" for the machine that is being serviced.

NOTE: Put identification marks on all lines, on all hoses, on all wires and on all tubes for installation purposes. Plug all lines, all hoses and all tubes. This will help to prevent fluid loss and this will help to prevent contaminants from entering the system.

1. Remove the two bolts and the washers that hold cover (1) to the loader frame. Remove the cover.

2. Disconnect lubrication hose assembly (2) (if equipped) from the head end of the tilt cylinder.

3. Attach a hoist and a suitable lifting sling to tilt cylinder guard (3). Remove the four bolts and the washers that hold tilt cylinder guard (3) to the tilt cylinder. Remove the guard. The weight of the tilt cylinder guard is 30 kg (66 lb).

4. Disconnect lubrication hose assembly (4) (if equipped) from the rod end of the tilt cylinder.

5. Remove bolt (5), the nut and the washers from the rod end of the tilt cylinder.

6. Attach a hoist and a suitable lifting sling to tilt cylinder (6), as shown. Use Tooling (A) to remove collets (7) from each side of the tilt cylinder pin.

7. Attach a hoist and a suitable lifting sling to tilt cylinder pin (8). Remove the pin and the shim(s) (if equipped). The weight of the tilt cylinder pin is 24 kg (52 lb).

8. Move tilt cylinder (6) to the position shown. Secure the tilt cylinder to the rear frame, as shown.

9. Start the engine. Raise the lift arms and install the bucket control group safety pins. Refer to Disassembly and Assembly, "Bucket Control Group Safety Pins - Remove and Install" for the machine that is being serviced. Stop the engine.

10. Attach a hoist and a suitable lifting sling to the rod end of lift cylinder (9), as shown.

11. Remove bolt (10) and the washer from the lift cylinder rod end collet assembly.

12. Use Tooling (B) to remove collets (11) from each side of the lift cylinder pin.

13. Remove pin (12) and the shim(s) (if equipped) from the rod end of the lift cylinder.

14. Start the engine and retract the lift cylinder rod to move the rod clevis away from the lift arm assembly. Stop the engine.

15. Use the hoist to lower lift cylinder (9) on to the front loader frame, as shown.

16. Repeat Steps 10 through 15 for the lift cylinder on the other side of the machine.

17. Disconnect lubrication hose assembly (14) from the bulkhead on each side of the front loader frame.

18. Remove two bolts (13) and the washers that hold each bulkhead to the front loader frame.

19. Cut cable strap (15) that holds the lubrication hose assemblies on each side of the front loader frame.

NOTE: Perform Steps 20 through 32 to machines equipped with the optional automatic lubrication system.

20. Disconnect four lubrication hose assemblies (16) from the bulkhead on the left side of the front loader frame.

21. Remove two bolts (17) and the washers that hold the bulkhead to the front loader frame.

22. Remove bolt (18) and the washer.

23. Disconnect lubrication hose assembly (19) from the bottom of the bulkhead.

24. Disconnect five lubrication hose assemblies (20) from the bulkhead on the right side of the front loader frame.

25. Remove two bolts (21) and the washers that hold the bulkhead to the front loader frame.

26. Remove bolt (22) and the washer.

27. Disconnect lubrication hose assembly (23) from the bottom of the bulkhead.

28. Disconnect lubrication hose assembly (24) from injector manifold (26).

29. Remove two bolts (25) and the washers that hold the lubrication injector manifold to the front loader frame.

30. Remove lubrication injector manifold (26) and the hose assemblies from the machine.

31. Cut cable strap (27) that holds the lubrication hose assemblies to the left side of the front loader frame.

32. Cut cable straps (28) and (29) that hold the lubrication hose assemblies to the right side of the front loader frame.

33. Remove covers (30) and (31) from the lift arm assembly.

34. Disconnect the wiring harness to the lift arm light at terminal (32).

35. Cut four cable straps (33). Move the wiring harness away from the lift arms.

36. Repeat Steps 34 and 35 for the wiring harness to the light on the other side of the lift arms.

37. Attach a hoist, Tooling (C), suitable lifting slings and chains to lift arm assembly (34), as shown.

38. Remove bolt (35), the nut and the washers from the lift arm pin assembly.

39. Use Tooling (A) to remove collets (36) from each side of the lift arm pin assembly.

40. Attach a hoist and a suitable lifting sling to lift arm pin (37). Remove the pin and the shim(s) (if equipped). The weight of the lift arm pin is 52 kg (115 lb).

41. Repeat Steps 38 through 40 in order to remove the lift arm pin on the other side of the machine.

42. Remove lift arm assembly (34), the tilt lever and the tilt link together as a unit. The combined weight of lift arm assembly (34), the tilt lever and the tilt link is 3710 kg (8180 lb).

43. Position the lift arm assembly on suitable wood blocks, as shown.

44. Remove lip seals (38) from each side of the pivot pin bores in the lift arm assembly.


Typical Example

45. Put Tooling (D) in position on the lift arm assembly, as shown. Use Tooling (D) to remove the sleeve bearings from the pivot pin bores.

46. Remove lip seals (39) from each side of the lift cylinder pin bores in the lift arm assembly.


Typical Example

47. Put Tooling (E) in position on the lift arm assembly, as shown. Use Tooling (E) to remove the sleeve bearings from the lift cylinder pin bores.

48. Remove lip seals (40) from each side of the bucket pin bores in the lift arm assembly.


Typical Example

49. Put Tooling (F) in position on the lift arm assembly, as shown. Use Tooling (F) to remove the sleeve bearings from the bucket pin bores.

50. If necessary, remove tilt lever (41) and tilt link (42) from the lift arm assembly. For the correct procedure, refer to Disassembly and Assembly, "Tilt Lever and Tilt Link - Remove" for the machine that is being serviced.

Caterpillar Information System:

R1700G LH.D. MACHINE SYSTEMS Lift Cylinder - Install
R1700G LH.D. MACHINE SYSTEMS Lift Cylinder - Assemble
R1700G LH.D. MACHINE SYSTEMS Lift Cylinder - Disassemble
R1700G LH.D. MACHINE SYSTEMS Lift Cylinder - Remove
R1700G LH.D. MACHINE SYSTEMS Tilt Link - Install
R1700G LH.D. MACHINE SYSTEMS Tilt Link - Remove
R1700G LH.D. MACHINE SYSTEMS Tilt Lever and Tilt Link - Install
R1700G LH.D. MACHINE SYSTEMS Tilt Lever and Tilt Link - Remove
R1700G LH.D. MACHINE SYSTEMS Tilt Cylinder - Install
R1700G LH.D. MACHINE SYSTEMS Tilt Cylinder - Assemble
R1700G LH.D. MACHINE SYSTEMS Tilt Cylinder - Disassemble
R1700G LH.D. MACHINE SYSTEMS Tilt Cylinder - Remove
R1700G LH.D. MACHINE SYSTEMS Lift Arms - Install
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