Inspection And Adjustment; Main Relief Valve Pressure - Ezgo 1600xd Repair Manual

4. INSPECTION AND ADJUSTMENT

4.1 MAIN RELIEF VALVE PRESSURE

CAUTION
• Make sure to check the oil level and add oil if
necessary before the test as an insufficient oil
level can cause malfunction in the hydraulic
device during the test.
1. Prepare the pressure gauge that its measurable
pressure is over 200
kgf/cm
the quick coupler (3/8" male).
2. Disconnect the dumping cylinder hose of the dump-
ing valve.
3. Attach the pressure gauge to the quick coupler to
the lifting side of the dumpling valve hydraulic outlet
port.
CAUTION
• Make sure that the quick coupler is firmly
tightened.
REMARK
• Stop the engine so that the pressure gauge can
be easily attached. Then, move the double acting
lever (dumping operation lever) forward and
backward to remove pressure from the hydraulic
line.
SUUV-W00 Apr. 2011
HYDRAULIC SYSTEM - INSPECTION AND ADJUSTMENT
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and is equipped with
4. Place the selector shift lever in the neutral posi-
tion, start the engine and speed up the engine to its
maximum.
5. Move the dumping operation lever to the operating
position and check the pressure during the relief
open with the pressure gauge
6. As the main relief valve is open, complete the mea-
surement within 20 to 30 seconds and return the
lever to the neutral position.
Specifi ed main
relief pressure .............155 ~ 160 kgf/cm
7. If the main relief valve pressure is below the speci-
fi ed pressure, it is possible that the main relief valve
is malfunctioning and the pump effi ciency is dete-
riorated.
REMARK
HOW TO ADJUST RELIEF VALVE PRESSURE
• Adjust the relief valve pressure by unscrewing
the adjusting nut (1) and turning the adjusting
screw (2).
• Turning the adjusting screw clockwise with a hex.
wrench increases the set pressure while turning
it counterclockwise decreases the set pressure.
2
15.19 ~ 15.68 MPa
2,204 ~ 2,275 psi
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