KIT-SEAL 6Q2203 - Caterpillar

Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
Illustration 1 g01182978
Position boom (1) on suitable cribbing.
Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release".
Remove the air cleaner. Refer to Disassembly and Assembly, "Air Cleaner - Remove and Install".
Illustration 2 g01182982
Illustration 3 g01182981
Raise hood assembly (2) . Attach a suitable lifting device in order to support hood assembly (2) . Remove struts (3) . Lower hood assembly (2) .
Illustration 4 g01182980
Remove bolts (4) . Use two people in order to remove hood assembly (2) .
Illustration 5 g01182983
Disconnect harness assembly (5) .
Illustration 6 g01182984
Disconnect hose assemblies (6) and hose assemblies (7) .
Illustration 7 g01182985
Disconnect hose assembly (8) .
Illustration 8 g01182987
Disconnect hose assemblies (9) and hose assemblies (10) . Disconnect hose assembly (11) and hose assembly (12) . Remove the mounting hardware.
Illustration 9 g01182988
Disconnect grease hose assembly (13) .
Illustration 10 g01182990
Attach a suitable lifting device to boom cylinder (14) . The weight of boom cylinder (14) is approximately 213 kg (470 lb). Remove bolts (15) and plate (16) .
Illustration 11 g01182992
Remove shims (17) . Reposition pin (18) . Use the suitable lifting device in order to lower boom cylinder (14) onto suitable cribbing.
Repeat Steps 10 through 12 for the remaining boom cylinder.
Illustration 12 g01182993
Attach Tooling (A) , Tooling (B) , and a suitable lifting device to boom (1) . The weight of boom (1) is approximately 1678 kg (3700 lb).
Illustration 13 g01182994
Illustration 14 g01182995
Remove bolt (20) . Attach Tooling (C) and a suitable lifting device to pin assembly (19) . The combined weight of Tooling (C) and pin assembly (19) is approximately 104 kg (230 lb).
Remove pin assembly (19) and shims (21) .
Remove boom (1) from the machine.