09.2020
Seite 71 / 197
Wheel
track
Boom deflection pedal
When the instrument displays the stretch of undercarriage,
loosen the control lever and it will be back to the neutral
position automatically, the undercarriage will stop
immediately.
A. Post-pull control lever undercarriage becomes wider
（
990mm
→
1240mm
）
B. Front-push control lever undercarriage becomes narrower
（
1240mm
→
990mm
）
Caution
：
While conducting the wheel base stretch, please do it when the maximum
outreach is 1240mm and the maximum retraction is 990mm
. if the stretch operation is stopped
in halfway, the rotating frame will shake due to that the adjustable leg is unfixed.
Please conduct the wheel base stretch only when passing smooth and narrow place.
In addition to these place, when conducting the operations of travelling, digging, bulldozing and
breaking, please make sure to stretch the wheel base to the maximum width.
Or else, it will cause turnover when travel with narrow wheel base.
Notices
When there are obstacles against the stretch of wheel base, please remove the obstacles or move
the machine to the flat ground and then do the wheel base stretch. If the wheel base stretch still
cannot be done, please use working device and dozer blade to make the crawler impending and
then conduct the wheel base stretch. In addition, if there is soil stuck into the stretch parts, please
remove the soil.
Before operating the boom deflection pedal, please turn down the anti-misoperation pedal first, and
then press leftward to make the boom deflect leftward and rightward to make the boom deflect
rightward.
After completing the operation, turn up the cover of anti-misoperation pedal to avoid misoperation
and cause personal casualty.
