Hyundai R 160 LC-3, Service Manual

Page: 27 / 459

1-18
GEAR PUMP
MAIN CONTROL VALVE
SWING MOTOR
TRAVEL MOTOR
Item
Type
Capacity
Maximum pressure
Rated oil flow
Specification
Fixed displacement gear pump single stage
10cc/rev
40kgf/cm 2 (570psi)
22 ֻ /min(5.8U.S. gpm/4.8U.K. gpm)
Item
Type
Operating method
Main relief valve pressure
Overload relief valve pressure
Specification
9 spools two-block
Hydraulic pilot system
320kgf/cm 2 (4550psi)[350kgf/cm 2 (4980psi)]
380kgf/cm 2 (5405psi)
Item
Type
Capacity
Relief pressure
Braking system
Braking torque
Brake release pressure
Reduction gear type
Swing speed
Specification
Fixed displacement axial piston motor
99.2cc/rev
260kgf/cm 2 (3911psi)
Automatic, spring applied, hydraulic released
42kgf ş m(304lbf ş ft)
4.5~20kgf/cm 2 (64~284psi)
2 - stage planetary
12.1rpm
Item
Type
Relief pressure
Capacity(max / min)
Reduction gear type
Braking system
Brake release pressure
Braking torque
Specification
Variable displacement axial piston motor
350kgf/cm 2 (4980psi)
87.3/55.5cc/rev
3-stage planetary
Automatic, spring applied, hydraulic released
11kgf/cm 2 (156psi)
1060~1780kgf
ş
m(7667~12874lbf
ş
ft)
[ ] : Power boost
3)
4)
5)
6)