B-1
B-1
Manual Control Valve B-1
Manual Control Valve
[NOTICE] There is a case that the appearance and so on differ from the parts for this machine. Although there is not so much difference in functions and disassembly procedures, make sure of the serial number of this machine and the part sales unit described in the parts catalog before starting disassembling operations.
1. Structure General View Pressure gauge
P
T
Pressure tapping hole
T
SOL-1
Pressure tapping hole Pressure gauge
Unload valve SOL-1
P
Unload valve
Boom telescoping
A1 B1
SOL-2
Winch
A2 B2
LRV
Boom elevation
A3 B3
Swing
A4 B4
Jack 2
A5 B5
Jack 1
A6 B6
A1
B1
SOL-2
Boom telescoping
A2
B2
LRV
Winch
A3
B3
Boom elevation
A4
B4
Swing
A5
B5
Jack 2
A6
B6
Jack 1
T = 21.6 - 23.5 N-m
Hydraulic circuit
IW113-003001E
Thread size and tightening torque Sign / Port
Thread size
A-B port
Tightening torque N-m
ft-lbf
G 3/8
39.2 – 49.0
28.9 – 36.1
P port
G 1/2
58.8 – 68.5
43.3 – 50.5
T port
G 1/2
58.8 – 68.5
43.3 – 50.5
Pressure gauge
G 1/4
24.5 - 29.4
18.0 – 21.6
1
W113-0031E
