Wear dimension (a) of point (1)
Standard dimension: 335 mm
Repair limit: 225 mm
When it is below the repair limit, replace.
TIPS FOR LONGER UNDERCARRIAGE LIFE
Undercarriage life greatly varies depending on operation method, inspection and maintenance.
For most efficient operation, keep the following points in mind.
OPERATION METHOD
• Use a track shoe suitable for soil condition.
For selection of the shoe, consult your Komatsu distributor.
• Do not let the shoe slip during operation.
If the shoe starts slipping, decrease the load to prevent slipping.
• Avoid rapid start, acceleration, stop, or unnecessary high-speed operation or sharp turn.
• Travel as straight as possible. Do not turn only in either direction but turn in both directions evenly. Also,
secure turning radius as large as possible.
• Clear the travel ground and remove obstacles so that the machine does not ride over large boulders or ob-
stacles.
• On slopes, do not work across the slope surface but work
upward or downward. When stopping the machine on a
slope, direct it up or down.
• If the ground slants to the right or left while the machine is
digging, do not stay there but move back to a level place,
then start digging again.
• If the idler or sprocket floats because of a hard obstacle
during dozing or ripping work, avoid that obstacle, since it
is “difficult to move it”.
OPERATION MACHINE OPERATIONS AND CONTROLS
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