METHOD FOR CHECKING LOOSENESS AND TIGHTENING TRACK SHOE
BOLTS
If shoe bolts (1) are used while they are loose, they are broken.
Tighten them immediately whenever you find they are loose.
METHOD FOR RETIGHTENING SHOE BOLT
1.
Tighten the shoe bolts in the order shown in the figure.
Tightening torque for shoe bolt: 530 to 650 Nm {54 to
66 kgm}
2.
Check that the nut and shoe are in close contact with the
link contact surface.
3.
After checking, retighten by 110 to 130 °.
METHOD FOR RETIGHTENING MASTER LINK CONNECTING BOLT
1.
Tighten the master link connecting bolts in the order shown
in the figure.
Tightening torque for master link connecting bolt: 530 to
650 Nm {54 to 66 kgm}
2.
Check that the link contact surfaces are fitted.
3.
After checking, retighten by 170 to 190 °.
METHOD FOR CHECKING IDLER CLEARANCE
The idler is moved back and forth by external forces. At this
time, guide plate (2) is worn. If guide plate (2) is worn, the idler
runs out sideways or inclines, and the track shoe may come off
or may be worn unevenly. To prevent this, check as follows.
MAINTENANCE PROCEDURE MAINTENANCE
4-26
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