Hyundai HX140L, Manual

Page: 568 / 819

7-20
Main pump
a1
a2
Pressure sensor
Monitoring
(analog)
Cluster
Preparation
Keep the hydraulic oil temperature at
50
·
5˚C.
Measurement
Select the following switch positions.
Power mode switch : P mode
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)
ྙ
(2)
ྙ
½
ྚ
ྛ
ྜ
The average measured pressure should be within the following specifications.
Unit : kgf / cm
2
( ) : Power boost
SYSTEM PRESSURE REGULATOR RELIEF SETTING 17)
(3)
Model
HX140 L
Function to be tested
Boom, Arm, Bucket
Travel
Swing
Standard
350 (380)
·
10
350
·
10
285
·
10
Port relief setting at 20 lpm
400
·
10
-
-
140L7MS03