6-20
G1
G2
G3
A3
A2
A1
Preparation
Stop the engine.
Push the pressure release button to
bleed air.
To measure the system relief pressure.
Loosen the cap of screw coupling and
connect pressure gauge to the main
pump gauge port(G1, G2, G3) as shown.
Start the engine and check for oil
leakage from the port.
Keep the hydraulic oil temperature at 50
Ü
5
Á
C.
M
M
easurement
Slowly operate each control lever of
boom, arm and bucket functions at full
stroke over relief and measure the
pressure.
In the swing function, place bucket
against an immovable object and
measure the relief pressure.
In the travel function, lock undercarriage
with an immovable object and measure
the relief pressure.
Evaluation
(1)
Η
Θ
Ι
Κ
Λ
(
(
2)
Η
Θ
Ι
The average measured pressure should be within the following specifications.
Unit : kgf / cm
2
S
SYSTEM PRESSURE REGULATOR RELIEF SETTING
17)
(3)
Model
R35Z-7
Function to be tested
Boom, Arm, Bucket
Travel
Swing
Standard
230
Ü
10
230
Ü
10
230
Ü
10
R35Z76MC17