SEAL KIT- 1371974 - Caterpillar

Start By :a. Release the hydraulic pressure.b. Remove the bucket.
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.
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 work tools have been lowered to the ground, 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.
Illustration 1 g06008369
Start the machine. Raise boom (1) to maximum.
Extend stick cylinder (2) to position stick (3). Refer to Illustration 1.
Drain the hydraulic oil. Refer to Operation and Maintenance Manual, "Hydraulic System Oil – Change" for the correct draining procedures.
Lower boom (1) to position stick (3) on suitable cribbing, as shown. The combined weight of the stick, the bucket cylinder, and the bucket control linkage is approximately 3322 kg (7325 lb).
Illustration 2 g03887532
Attach a suitable lifting device to stick cylinder (2). The weight of stick cylinder (2) is approximately 307 kg (677 lb).
Use Tooling (B) to remove pin assembly (4). Attach a suitable lifting device to Tooling (B). The combined weight of Tooling (B) and pin assembly (4) is approximately 54 kg (120 lb). Remove bolt (5), the shims, and pin assembly (4).
Fully retract and lower stick cylinder (2) onto suitable cribbing.
Illustration 3 g03887533
Disconnect all hose assemblies (6) on both sides that connect the stick to the boom.
Illustration 4 g03887537
Use Tooling (C) to remove pin assembly (7). Attach a suitable lifting device to Tooling (C). The combined weight of Tooling (C) and pin assembly (7) is approximately 159 kg (350 lb). Remove bolts (8), pin assembly (7) , the shims, and stick (3).
Illustration 5 g03887538
Raise the boom and backward the machine.
Lower the boom. Adjust the height of Tooling (A) to support the boom. Install Tooling (A) under the boom.Installation Procedure
Install stick (3) in the reverse order of removal.
Illustration 6 g03887541
Use Tooling (D) to install pin assembly (7).Note: Install the steel shims towards the boom.
Install the shims to obtain a maximum gap of 1.0 mm (0.04 inch) between the stick and the boom.
Illustration 7 g03887542
Use Tooling (E) to install pin assembly (4).