6-14
Unit : kgf
Use a spring scale to measure the
maximum resistance of each control lever
at the middle of the grip.
Preparation
Keep the hydraulic oil temperature at 50
Ü
5
Á
C.
M
M
easurement
Start the engine.
Operate each boom, arm, bucket and
swing lever at full stroke and measure the
maximum operating force for each.
Lower the bucket to the ground to raise
one track off the ground. Operate the
travel lever at full stroke and measure the
maximum operating force required.
When finished, lower the track and then
jack-up the other track.
Repeat steps
Θ
and
Ι
three times and
calculate the average values.
E
E
valuation
(1)
(2)
Η
(3)
Η
Θ
Ι
Κ
The measured operating force should be within the following specifications.
Model
R35Z-7
Kind of lever
Boom lever
Arm lever
Bucket lever
Swing lever
Travel lever
Standard
1.4 or below
1.4 or below
1.4 or below
1.4 or below
2.0 or below
Maximum allowable
1.9
1.9
1.9
1.9
2.5
Remarks
((4)
CONTROL LEVER OPERATING FORCE
11)