ARM AS-BEARING 3814451 - Caterpillar

Remove two tubes (3) and two tubes (4) from diverter valve (5) .
Remove hose (2) from the pressure sensor.
Disconnect electrical connector (1) .
Illustration 2 g00339558
Attach a suitable hoist and a suitable lifting sling to diverter valve (5) .
Use the hoist in order to remove diverter valve (5). The weight of the diverter valve is 52 kg (115 lb).
Remove eight bolts (6). Remove diverter valve (5) from the main control valve.
Illustration 3 g00340181
Remove two tubes (7) and pipe (8) .
Illustration 4 g00340182
Attach a suitable hoist and a suitable lifting sling to main control valve (10) .
Use the hoist in order to remove main control valve (10). The weight of the main control valve is 68 kg (150 lb).
Remove three bolts (9). Remove main control valve (10) from the plate.
Illustration 5 g00340188
Put identification marks on relief valve (11) and on relief valve (12). Remove the two relief valves from the main control valve.
Illustration 6 g00340189
Disassemble relief valves (11) and (12) :
Remove O-ring seals (16) from the valve body.
Loosen locknut (13) and remove retainer assembly (17). Remove O-ring seal (18) from retainer assembly (17) .
Remove shim (14), spring (15), plate (19) and valve (20) from the valve body.
Illustration 7 g00340298
Remove main relief valve (21) from the main control valve.
Illustration 8 g00340300
Disassemble main relief valve (21) :
Remove O-ring seals (22) from the valve body.
Remove cap (27) from the valve body. Remove O-ring seal (23) from cap (27). If necessary, loosen locknut (25) and remove retainer assembly (29) from the cap.
Remove shim (28), spring (24) and valve (26) from the valve body.
Illustration 9 g00340775
Remove three plugs (30) and makeup valve (31) from the main control valve.
Illustration 10 g00484850
Remove four bolts (33) and two housings (32). Remove the O-ring seals from the housings.
Illustration 11 g00484853
Remove four bolts (34) and two housings (35). Remove the O-ring seals from the housings.
Illustration 12 g00484854
Remove tilt valve spool assembly (36) and lift valve spool assembly (37) .
Illustration 13 g00340816
Illustration 14 g00484855
Disassemble valve spool assemblies (36) and (37). Remove bolt (46), shim (45), retainer (44), shim (43), spring (42), spring (41), retainer (40) and shim (39) from spool (38) .