Hyundai HX145LCR Manual page 430

3) TRAVEL SPEED
(1)
Measure the time required for the
excavator to travel a 20 m test track.
(2)
Preparation
Adjust the tension of both tracks to be
equal.
Prepare a flat and solid test track 20m in
length, with extra length of 3 to 5 m on
both ends for machine acceleration and
deceleration.
Hold the bucket 0.3 to 0.5 m above the
ground with the arm and bucket rolled in.
Keep the hydraulic oil temperature at
50 5˚C.
(3) Measurement
Measure both the low and high speeds
of the machine.
Before starting either the low or high
speed tests, adjust the travel mode
switch to the speed to be tested, then
select the following switch positions.
Power mode switch : P mode
Star t traveling the machine in the
acceleration zone with the travel levers
at full stroke.
Measure the time required to travel 20 m.
After measuring the forward travel
speed, turn the upperstructure 180
and measure the reverse travel speed.
Repeat steps
each direction and calculate the average
values.
(4) Evaluation
The average measured time should meet the following specifications.
Model
HX145CR
HX145LCR
and three times in
Travel speed
1 Speed
2 Speed
3~5m
Standard Maximum allowable
22.5 2.0 28.1
13.3 1.0 16.6
7-5
0.3~0.5m
145ZF7MS04
20m 3~5m
145ZF7MS05
Unit : Seconds / 20 m
Remarks