SEAT GP-SUSPENSION 3846168 - Caterpillar

Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 6V-8336 Bolt (M12×1.75×70mm) 2 Start By:
Remove the counterbalance valve. Refer to Disassembly and Assembly, "Counterbalance Valve (Travel) - Remove".
Keep all parts clean from contaminants.Contamination of the hydraulic system with foreign material will reduce the service life of the hydraulic system components.To prevent contaminants from entering the hydraulic system, always plug or cap the lines, fittings, or hoses as they are disconnected. Cover any disassembled components and clean them properly before assembly.Clean the hydraulic system properly after any major component exchange or especially after a component failure, to remove any contamination.
Note: Cleanliness is an important factor. Before the disassembly procedure, clean the exterior of the component thoroughly. Doing so will help to prevent dirt from entering the internal mechanism.
Illustration 1 g00901466
Remove plugs (1) and O-ring seals (2) from the counterbalance valve (3).
Illustration 2 g00901497
Remove relief valves (4) from counterbalance valve (3).
Disassemble relief valves (4) in the following manner:
Illustration 3 g00901857
Personal injury can result from parts and/or covers under spring pressure.Spring force will be released when covers are removed.Be prepared to hold spring loaded covers as the bolts are loosened.
Remove backup rings (5) and O-ring seal (6).
Remove O-ring seal (7) from the relief valve.
Remove nut (9).
Remove screw (10) and stop (14) from body (8).
Remove backup ring (11) and O-ring seal (12) from stop (14).
Remove piston (13) from body (8).
Remove backup rings (11) and O-ring seal (12) from piston (13).
Repeat Steps 2.a through 2.h for the remaining relief valve.
Illustration 4 g00901499
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Remove bolts (16). Install Tooling (A ) into the bolts evenly in order to relieve spring pressure. Remove bolts (16) and Tooling (A). Remove cover (17) from the block.
Illustration 5 g00901561
Illustration 6 g00901565
Remove sleeve (18), spring (19), and spacer (20) from counterbalance valve (3). Note: The grooved side of spacer (20) faces spring (19).
Repeat 4 and 5 for the remaining cover.
Illustration 7 g00901566
Illustration 8 g00901568
Remove spool (21) from the counterbalance valve.