Hyundai R 160 LC-3, Service Manual

Page: 282 / 459

7 - 6
TRACK REVOLUTION SPEED
Measure the track revolution cycle time
with the track raised off ground.
Preparation
Adjust the tension of both side tracks to
be equal.
On the track to be measured, mark one
shoe with chalk.
Swing the upperstructure 90
Ş
and lower
the bucket to raise the track off ground.
Keep the boom-arm angle between 90 to
110
Ş
as shown. Place blocks under
machine frame.
Keep the hydraulic oil temperature at
50
Ź 5 Ş C.
Measurement
Select the following switch positions.
Travel mode switch : 1 or 2 speed
Mode selector : H mode
Auto decel switch : OFF
Operate the travel control lever of the
raised track in full forward and reverse.
Rotate 1 turn, then measure time taken
for next 3 revolutions.
Raise the other side of machine and
repeat the procedure.
Repeat steps
ں and ڻ three times and
calculate the average values.
Evaluation
4)
(1)
(2)
ڸ
ڹ
ں
ڻ
(3)
ڸ
ş
ş
ş
ڹ
ں
ڻ
ڼ
The revolution cycle time of each track should meet the following specifications.
90~110
Ş
Mark
Model
R160LC-3
Travel speed
1 Speed
2 Speed
Standard
25.0 Ź 2.0
16.0
Ź
2.0
Maximum allowable
32
22
Unit : Seconds / 3 revolutions
(4)