MANIFOLD GP-CONTROL 3004491 - Caterpillar

2. Remove two bolts (1) and relief valve (2) from the implement control valve. 3. Put the relief valve (2) in position on the implement control valve and install the two bolts that hold it. Tighten the bolts to a torque of 60 2 lb.ft. (80 3 N m).4. Fill the hydraulic tank with oil to the correct level.Disassemble Relief Valve (Main Hydraulic System)
start by:a) remove relief valve (main hydraulic system) 1. Remove body (3), dump valve (4) and spring (1) from body (2).2. Remove the O-ring seals from body (3). 3. Remove two bolts (6) and valve (5) from body (2). 4. Remove stem (7), stop (8), spring (9) and pilot valve (10). Remove the shims from stem (7).5. Remove retainer (12) and spring (11). 6. Remove plug (14) and valve stem (13) from body (2).Assemble Relief Valve (Main Hydraulic System)
1. Put clean oil on all valve parts and O-ring seals before assembly.2. Install valve stem (1) and plug (7) in body (5). Tighten plug (7) to a torque of 25 2 lb.ft. (33.9 2.7 N m). If plug (2) was removed tighten the plug to a torque of 13 2 lb.ft. (17.6 2.7 N m).3. Install spring (4) and retainer (3) in valve (6) as shown.4. Install shims (11) in stem (10). Install stem (10), spring (12), stop (13) and pilot valve (16) in valve (6) as shown. Be sure the O-ring seals are in place on valve (6).5. Put valve (6) in place on body (5) and install the bolts that hold it.6. If plugs (8) were removed, tighten them to a torque of 13 2 lb.ft. (17.6 2.7 N m).7. Install the O-ring seals on body (15).8. Install dump valve (14) and spring (9) in body (15). Install body (15) on body (5).end by:a) install relief valve (main hydraulic system)