OPERATION 9VX3
CRAWLER EXTENSION/RETRACTION
This machine has crawler extension/retraction mechanisms.
Extend the crawlers as shown below.
1. Move the blade to the back of the machine and jack up
the machine body until the crawlers are lifted from the
ground using the attachment and blade in order to
extend or retract the crawlers easily.
2. Pull up the blade/crawler select lever to the crawler
operation position.
WB-C210190
3. Change the engine speed to the middle speed and
operate the blade/crawler operation lever.
Extending the crawlers: Push the lever forward.
Retracting the crawlers: Pull the lever backward.
Extend
NOTICE
Be sure to extend or retract the crawlers on a flat
place with no obstacles.
The crawlers may be extended or retracted without
jacking up the machine body. However, if there are
obstacles on the ground on the side of the
crawlers, the resistance increases and may hinder
crawler extension or retraction.
Blade/crawler operation lever
A CAUTION
• The crawlers may retract slightly during
operation due to leakage from the hydraulic
circuit.
Extend them to the stroke end occasionally with
the blade/crawler operation lever.
• Be sure to travel the machine at the stroke end
of the crawler cylinder.
If the machine is traveled at the middle of the
stroke, the travel linearity and operability are
deteriorated and the machine body may
become faulty.
Extended/retracted crawler dimension
3-9-1
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