SEAL KT 5439705 - Caterpillar

Remove bolts (8) , block (9) , and the O-ring seals.Disassembly and Assembly Information
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     127-4904     Repair Stand     1    
B     4C-9507     Retaining Compound     1    
C     1P-0510     Driver Gp     1    
D     9U-7868     Spanner Wrench     1    
127-8064 Adjustable Plate     1    
E     195-4609     Seal Pick     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.
Illustration 7 g01190029
(1) Torque for cylinder head ... 300 40 N m (220 30 lb ft) (2) Apply Tooling (B) to the threads. (3) Apply Tooling (B) to the threads of the piston. Torque for the piston ... 250 40 N m (185 30 lb ft)Installation Procedure
Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
F     9S-3263     Thread Lock Compound     1    Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.
Illustration 8 g01190023
Apply Tooling (F) to bolts (8) . Install block (9) , the O-ring seals, and bolts (8) .
Illustration 9 g01190022
Illustration 10 g01190019
Use a suitable lifting device to position hydraulic cylinder (4) . The weight of hydraulic cylinder (4) for (S/N: CZC) is approximately 63 kg (139 lb). The weight of hydraulic cylinder (4) for (S/N: CZD) is approximately 46 kg (102 lb).
Position suitable blocking under hydraulic cylinder (4) .
Illustration 11 g01190020
Reposition the suitable lifting device on hydraulic cylinder (4) .
Install pin (7) , plate (6) , and bolt (5) . Repeat for the other end.
Remove the suitable blocking. Refer to Illustration 10.
Illustration 12 g01190018
Install fittings (3) and connect hose assemblies (2) .
Illustration 13 g01205421
Install covers (1) .