Hyundai Robex 235LCR-9, Руководство по обслуживанию

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GEAR PUMP GEAR PUMP
MAIN CONTROL VALVE MAIN CONTROL VALVE
SWING MOTOR SWING MOTOR
3) 3)
4) 4)
5) 5)
[ ]: Power boost
TRAVEL MOTOR TRAVEL MOTOR 6) 6)
Item Specification
Type 9 spools two-block
Operating method Hydraulic pilot system
Main relief valve pressure
350 kgf/cm
2
(4980 psi) [380 kgf/cm
2
(5400 psi)]
Port relief valve pressure
Boom
400 kgf/cm
2
(5690 psi)
Arm 400 kgf/cm
2
(5690 psi)
Bucket
400 kgf/cm
2
(5690 psi)
Item Specification
Type Fixed displacement gear pump single stage
Capacity 15 cc/rev
Maximum pressure
40 kgf/cm
2
(570 psi)
Rated oil flow 28.5
ℓ
/min (7.5 U.S. gpm/6.3 U.K. gpm)
Item Specification
Type Two fixed displacement axial piston motor
Capacity 151 cc/rev
Relief pressure
285 kgf/cm
2
(4050 psi)
Braking system Automatic, spring applied hydraulic released
Braking torque 59 kgf
·
m (427 lbf
·
ft)
Brake release pressure
33~50 kgf/cm
2
(470~711 psi)
Reduction gear type 2 - stage planetary
Item Specification
Type Variable displacement axial piston motor
Relief pressure
350 kgf/cm
2
(4980 psi)
Reduction gear type 2-stage planetary
Braking system Automatic, spring applied hydraulic released
Brake release pressure
11 kgf/cm
2
(156 psi)
Braking torque 49.3 kgf
·
m (357 lbf
·
ft)