2-14
TRAVEL MOTOR
GEAR PUMP
MAIN CONTROL VALVE
SWING MOTOR
6)
Item
Type
Capacity
Maximum pressure
Rated oil flow
Specification
Fixed displacement gear pump single stage
15cc/rev
35kgf/cm
2
(500psi)
29.3 /min(7.7U.S.gpm/6.4U.K.gpm)
Item
Type
Operating method
Main relief valve pressure
Overload relief valve pressure
Specification
11 spools mono-block
Hydraulic pilot system
330kgf/cm
2
(4695psi)
380kgf/cm
2
(5550psi)
Item
Type
Capacity
Relief pressure
Braking system
Braking torque
Brake release pressure
Reduction gear type
Swing speed
Specification
Axial piston motor
64.3cc/rev
240kgf/cm
2
(3414psi)
Automatic, spring applied hydraulic released
25kgf m
2
(181lbf ft)
33~50kgf/cm
22
(469~711psi)
2 - stage planetary
13.0rpm
Item
Type
Relief pressure
Reduction gear type
Braking system
Brake release pressure
Braking torque
Specification
Variable displacement axial piston motor
330kgf/cm
2
(4695psi)
2 stage planetary
Automatic, spring applied hydraulic released
Less then 9kgf/cm
22
(128psi)
24.36kgf m
2
(176lbf ft)
3)
4)
5)
