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Disassemble the right covering part.
Slowly loosen the bleeding plug (1) to relieve the
internal pressure and then take out the plug.
Loosen the hose band
and take out the hose (2)
from the flange (3).
Loosen the bolt and take
out the flange (3).
Take out the oil
return filter (4).
Install new oil
return filter.
Reinstall flange
(3) and hose (2).
Check the level-
by-level gauge (5).
If the level is too
low, add oil.
Note: For
machine with
ventilator, no pressurization is required.
Every 50h
Checking and Adjustment of Front Toe.
For rubber tracks, adjust the marking “M” at the joints to the top center of track frame.
Lift the machine body by working device.
Slowly operate the joysticks.
Check the track tension.
Check the clearance (A or B) between the frame bottom face and track top face in the middle of
track frame. The clearance (A or B) shall be within following range:
rubber tracks 59~64mm
Steel tracks 95 to 110mm
Adjustment Increasing of Tension
Remove the cover plate.
Slowly loosen (by one turn) the grease relief valve (2) by a
wrench to drain the grease. If it’s difficult to drain the grease,
drive the machine back and forth.
Tighten the grease relief valve (2).
Tightening torque: 177 N˙M
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