RETAINER 4T0993 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     1P-1863     Retaining Ring Pliers     1    Start By:
Remove the tie rods. Refer to Disassembly and Assembly, "Tie Rods - Remove".
Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release".
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.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. 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 Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
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 g01193540
Disconnect two hose assemblies (1) and remove the fittings.
Remove bolts (2), flange (3), and steering cylinder assembly (4) .
Illustration 2 g01193541
Remove retaining ring (5), flange (2), seal (6), and seal (7) from cylinder (8) .
Remove ring (17) and seal (16). Use Tooling (A) to remove retaining ring (15) .
Remove rod assembly (10) and guide (11) from cylinder (8). Remove guide (11) from rod assembly (10) .
Remove seals (12), (13), and (14) from guide (11) .
Remove seals (9) from rod assembly (10) .Installation Procedure
Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
A     1P-1863     Retaining Ring Pliers     1    
B     6V-6640     Sealant     -    
Illustration 3 g01193541
Install seals (9) onto rod assembly (10) .
Install seals (12), (13), and (14) onto guide (11) .
Install guide (11) onto rod assembly (10). Install rod assembly (10) and guide (11) into cylinder (8) .
Install ring (17) and seal (16). Use Tooling (A) to install retaining ring (15) .
Install retaining ring (5), flange (2), seal (6), and seal (7) to cylinder (8) .
Illustration 4 g01193540
Apply Tooling (B) to both contacting surfaces of cylinder assembly (4). Position steering cylinder assembly (4) and flange (3). Install bolts (2) .
Install the fittings and connect two hose assemblies (1) .