RIM AS (SEM) 5555914 - Caterpillar

Illustration 1. Drift Reduction Valve And Boom Cylinder.
(1) Plug. (2) Drift reduction valve.1. Find the marking on plug (1).2. If there is no marking on plug (1) do Procedures A, B and C.3. If the marking on plug (1) is a "1" or "2" do Procedures B and C.4. If the marking on plug (1) is "1B" or "2B" do Procedure B.Procedure A
Illustration 2. Drift Reduction Valve With Former Logic Valve.
(6) Spring. (8) Logic valve. (11) Plug. (12) Seal (O-Ring).
Illustration 3. Drift Reduction Valve With New Logic Valve.
(6) Spring. (8) Logic valve. (11) Plug. (12) Seal (O-Ring).1. Replace logic valve (8). Select one of three logic valves shown in Chart. Select the logic valve with the least amount of clearance in the counterbore.2. Replace spring (6). The new spring has a larger wire diameter.3. Replace plug (11). The new plug has a counterbore for spring (6).4. Replace seal (12).Procedure B
Illustration 4. Former Boom Cylinder Drift Reduction Valve.
(4) Selector spool. (5) Spring. (12) Seal ( O-Ring). (13) Plug. (14) Guide.
Illustration 5. New Boom Cylinder Drift Reduction Valve.
(4) Selector spool. (5) Spring. (12) Seal (O-Ring). (13) Plug. (14) Guide.1. Replace guide (14).2. Replace spring (5).3. Replace plug (13).4. Replace seal (12).Procedure C
Illustration 6. Line Relief Valve.
(15) Adjusting screw. (16) Locknut.1. Increase the pressure of the line relief valve by turning adjusting screw (15) clockwise 35 to 40 degrees. The pressure will increase from 30 900 200 kPa (4500 200 psi) to 32 900 + 490 - 0 kPa (4750 + 72 - 0 psi).2. Verify the pressure setting.3. Tighten locknut (16) to a torque of 55 10 N m (41 7 lb ft).Parts Needed