R1700G LH.D. MACHINE SYSTEMS Caterpillar


Lift Cylinder - 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. 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.


NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide", for tools and supplies suitable to collect and contain fluids in Caterpillar machines.

Dispose of fluids according to local regulations and mandates.


------ WARNING! ------

Personal injury can result from hydraulic oil pressure and hot oil.

Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.

Make sure all of the attachments have been lowered, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.

--------WARNING!------

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 prevent fluid loss and this will help to prevent contaminants from entering the system.

1. Attach a hoist and a suitable lifting sling to the rod end of the lift cylinder, as shown.

2. Remove bolt (1) and the washer from the lift cylinder rod end collet assembly.

3. Use Tooling (A) to remove collets (2) from each side of the lift cylinder pin. Tighten the forcing bolts evenly to remove the collets.

4. Remove pin (3) and the shim(s) (if equipped) from the rod end of the lift cylinder.

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

6. Release the pressure from the hydraulic system. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release" for the machine that is being serviced.

7. Use the hoist to lower lift cylinder (4) on to the front loader frame, as shown.

8. Remove four bolts (5) and the washers that hold tube assembly (6) to the lift cylinder.

9. Remove four bolts (7) and the washers that hold tube assembly (8) to the lift cylinder.

10. Disconnect lubrication hose assembly (9) from the head end of the lift cylinder.

11. Attach a hoist and a suitable lifting sling to the head end of lift cylinder (4), as shown.

12. Remove bolt (10), the nut and the washers from the lift cylinder head end collet assembly.

13. Use Tooling (A) to remove collets (11) from each side of the lift cylinder pin. Tighten the forcing bolts evenly to remove the collets.

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

15. Use the hoist to move lift cylinder (4) toward the front of the machine in order to provide clearance for removal. Remove the lift cylinder. The weight of the lift cylinder is 350 kg (772 lb).

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