EDGE-CUTTING 1U1531 - Caterpillar

Attach Tooling (A) and a suitable lifting device to main control valve boom (8). Remove main control valve (8). The weight of main control valve boom is approximately 160 kg (350 lb). Note: There is no drift reduction valve on the bucket control valve.
Illustration 8 g03648369
Remove block (9).
Illustration 9 g03648376
Remove pressure sensor (10) and solenoid valve (11).
Illustration 10 g03648388
Remove spring (12) and valve (13).
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Remove relief valve (14).
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Remove bolts (15) and solenoid valves (16).
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Remove bolts (17) and actuator housing (18).
Illustration 14 g03648838
Remove valve stems (19).
Illustration 15 g03648840
Remove sleeve (20).
Illustration 16 g03648853
Remove O-ring seal (21) from sleeve. Remove nut (22), spring (23) and inner O-ring seal (24).
Illustration 17 g03648854
Remove bolts (25) and solenoid valves (25A).
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Remove valve stems (26).
Illustration 19 g03648906
Remove sleeve (27).
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Remove O-ring seal (28) from sleeve. Remove nut (29), spring (30) and inner O-ring seal (31).
Illustration 21 g03648902
Remove bolts (27) and hydraulic block (28).
Illustration 22 g03648936
Remove compensator assembly (29).
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Remove pressure sensor (30) and relief valve (31).