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OPERATION
TIPS FOR LONGER UNDERCARRIAGE LIFE
Undercarriage life greatly varies depending on operation method, inspection and maintenance. For most efficient
operation, keep the following point in mind.
OPERATION METHOD
Select the track shoe that best suits the type of soil to be encountered in service.
Consult your Komatsu distributor when selecting track shoes.
Do not allow shoe slipage to occur during operation. If slipage occurs, reduce load to the blade until slipping stops.
Avoid sudden starts, acceleration or stops, unnecessary high speeds and sharp turns.
Always operate machine in a straight line whenever possible. When making turns, be careful not to allow the
machine to stay to one side, so operation in both turning directions can be done properly. Make turns with the
largest possible radius.
Prior to operation, clear boulders and obstacles to prevent machine from riding over them while operating.
On a slope, operate the machine parallel to the inclination of the
slope. Do not operate across the slope. Also when stopping the
machine on a slope, the machine should face the top of the
slope.
When ground inclines to the left or right during digging
operations, do not continue to dig with the incline. Move the
machine back to level ground and start to dig again.
If you come across obstacles that are difficult to move during
dozing operations or ripper operations, and the idler or sprocket
come up from the ground, it means that the operation is
excessive for the machine, so avoid such operations.
INSPECTION AND ADJUSTING
Properly adjust track tension.
Tension should be measured at clearance (A) shown in the
diagram - usually 20 to 30 mm (0.8 to 1.2 in) at this point. For
rocky terrain, tighten tracks slightly. In clay or sandy areas,
slightly loosen them. (For inspection and adjustment
procedures, refer to "CHECK AND ADJUST TRACK TENSION
(PAGE 4-28)").
Check idler rollers for oil leakage as well as for loose bolts and
nuts. If any trouble is detected, repair immediately.
Check clearance S between the idler guide plate and track
frame. If clearance S becomes larger, the idler will move to the
side and cause the track shoe to come off. For details of the
method of inspection and maintenance, see "ADJUST IDLER
CLEARANCE (PAGE 4-31)".
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OPERATION
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