UPPERSTRUCTURE / Control Valve Disassemble Control Valve (4-Spool Control Valve) Disassemble Spool 1. Remove socket bolts (1) (6 used) from cover (2). Remove cover (2) and O-rings (3) (4 used) from housing (22). : 10 mm 2. Remove socket bolts (1) (7 used) from covers (23, 24). Remove covers (23, 24) and O-rings (3) (4 used) from housing (22). : 10 mm IMPORTANT: Rotate and remove spool (9, 11, 19, 21) assemblies. Do not disassemble spool (9, 11, 19, 21) assemblies unless necessary. 3. Remove spool (9, 11, 19, 21) assemblies from housing (22). 4.
Remove bolts (4) (4 used), spring guide (12) (4 used), springs (7) (4 used), sleeves (6) (4 used) and spring guides (5) (4 used) from spools (8, 10, 12, 20). : 10 mm 5. Remove cap (18), spacer (15), spring (14) and check valve (13) from spool (12). : 10 mm W2-5-55