Operation Manual

BX25, RCK54(P)-23BX, RCK60B-23BX, LA240, BT601, WSM
BACKHOE
1. HYDRAULIC SYSTEM
[1] HYDRAULIC CIRCUIT
(1 )
P
T
P.B.
B1 :B1 Port
P: Pump Port
B2 :B2
Port
T: Tank Port
B3 :B3
Port P.B. :Power Beyond Port
B4:B4 Port
A: From Hydraulic Pump
B5 :B5 Port (Approx. 14 Umin.,
B6 :B6
Port
3.7 U.S.gals/mln.,
3.08 Imp.gals/min.)
To operate the backhoe, the hydraulic oil pressurized oil by the hydraulic pump flows pump from pump port P
through six control valve (the bucket control valve, the dipperstick control valve, the stabilizer
RH control valve, the
stabilizer
LH control valve, the boom control valve and the swing control valve) to P.B. port (to front loader control
valve).
Since the relief valve
is not equipped in the backhoe control valve. the main relief valve in the tractor operates.
9-M1