Komatsu PC80MR-5E0, Operation & Maintenance Manual

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Check steel shoe bolt (1) for looseness.
If any looseness of the bolt is found, retighten it according to
the following procedure.
1) Tighten the bolt in the order shown in the figure.
Tightening torque:
98.1 to 137 Nm {10 to 14 kgm}
2) Check that the nut and shoe are in close contact with the
link contact surface.
3) After checking, tighten a further 80 to 100 ° of tightening
angle (a).
METHOD FOR CHECKING LOOSENESS AND TIGHTENING ROAD LINER SHOE
BOLTS
NOTICE
If the machine is used with road liner shoe bolts loose, they will break.
Tighten any loose shoe bolts immediately.
Check for looseness of the road liner shoe bolt (1).
If any looseness of the bolt is found, retighten it according to
the following procedure.
MAINTENANCE PROCEDURE MAINTENANCE
4-26
WENAM00241