DOC-20230111-WA0038.

UPPERSTRUCTURE / Pilot Valve
IMPORTANT: Attach identification tags on all disconnected
hoses to aid in reassembly.
7. Disconnect hoses (20 to 25), then attach a cap on
all disconnected the hose ends.
: 19 mm
8. Remove bolts (7) (4 used) to remove pilot valve
(19).
: 13 mm
24
25
20
21
22
Installation
23
1. Install pilot valve (19) to the console with bolts (7)
(4 used).
: 13 mm
: 10 N⋅m (1.0 kgf⋅m, 7.2 Ibf⋅ft)
W178-02-07-002
2. Connect hoses (20 to 25) to pilot valve (19).
: 19 mm
: 29.5 N⋅m (3 kgf⋅m, 21.5 lbf⋅ft)
20 - Hose T3: To pilot shut-off valve
21 - Hose B : To pilot piping coupler bracket
port B (boom lower)
22 - Hose G : To pilot piping coupler bracket
port G (bucket roll-in)
23 - Hose P2: From pilot shut-off valve
24 - Hose A : To pilot piping coupler bracket
port A (boom raise)
25 - Hose H : To pilot piping coupler bracket
port H (bucket roll-out)
NOTE: Piping location shows that of ISO pattern.
19
7
W1CC-02-07-001
W2-7-3