CYLINDER-HYD 1224979 - Caterpillar

Removal Procedure
Cylinders equipped with lock valves can remain pressurized for very long periods of time, even with the hoses removed.Failure to relieve pressure before removing a lock valve or disassembling a cylinder can result in personal injury or death.Ensure all pressure is relieved before removing a lock valve or disassembling a cylinder.
Place the bucket onto the ground.
Illustration 1 g01232811
Disconnect hose assembly (1). Remove clip (2). Repeat for the other side.
Illustration 2 g01232812
Attach a suitable lifting device to bucket cylinder (5). The weight of bucket cylinder (5) is approximately 34 kg (75 lb). Remove bolt (4) and pin assembly (3). Remove nuts (7) and bolt (6). Remove pin (8). Remove bucket cylinder (5).Disassembly and Assembly Information
Table 1
Required Tools
Tool Part Number Part Description Qty
A - Three Bond 1901 -
B 5P-7428 Bearing Adapter 1
9U-6833 Nut 1
4C-9633 Puller Stud 1
9S-5565 Pin Puller Sleeve As 1
350-7768 Electric Hydraulic Pump Gp 1
6V-3160 Double Acting Cylinder 1
Cylinders equipped with lock valves can remain pressurized for very long periods of time, even with the hoses removed.Failure to relieve pressure before removing a lock valve or disassembling a cylinder can result in personal injury or death.Ensure all pressure is relieved before removing a lock valve or disassembling a cylinder.
When you are using hydraulic cylinders and puller studs, always ensure that the rated capacity of the puller stud meets or exceeds the rated capacity of the hydraulic cylinder. If the puller stud does not meet or exceed the rated capacity of the hydraulic cylinder, a sudden failure of the puller stud could occur. The sudden failure of the puller stud could result in personal injury or death.
Note: Tooling (B) is used for the removal of the bearings that are located at the rod end and the head end of the bucket cylinder.
Illustration 3 g03628437 (1) Before assembly the bore of bushings (1) is 40.205 0.015 mm (1.5829 0.0006 inch). The installation depth is 5.0 mm (0.20 inch). (2) Tighten plug (2) to a torque of 76.4 3.8 N m (56.3 2.8 lb ft). (3) Tighten bolt (3) to a torque of 17.2 0.9 N m (152.2 8.0 lb in). (A) The diameter of rod (A) is 45 mm (1.7 inch). (B) The bore of cylinder assembly (B) is 75 mm (3.0 inch). (4) Tighten setscrew (4) to a torque of 16.2 N m (143.4 lb in). After you tighten setscrew (4), stake setscrew (4) in two places. (5) Tighten piston (5) to a torque of 1030 N m (760 lb ft). (6) The bore diameter of bushing (6) is 45 mm (1.8 inch). (7) Before assembly, apply Tooling (A) to the threads of head (7). Tighten head (7) to a torque of 422 N m (311 lb ft).Installation Procedure
Illustration 4 g01232812
Attach a suitable lifting device to bucket cylinder (5). The weight of bucket cylinder (5) is approximately 34 kg (75 lb). Install bucket cylinder (5). Install pin assembly (3) and bolt (4). Install pin (8). Install bolt