SUNWARD SWE150F, Operation & Maintenance Manual

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4.5.3.3 Check and fasten track bolt.
If operating machine with bolts loosened,
there is hazard that the bolts will rupture. Therefore
the loosened bolts should be fastened.
Tightening method
 Track shoe
1) Tighten at torque 490 ± 49 N m (50 ± 5 kgf m,
360 ± 36 lbft), then check to make sure that
nuts contact with track link surfaces securely.
2) After checking, retighten 120° ± 10°.

Rubber block ( if mounted)
1) Tighten at torque: 549 ± 59 N m (56 ± 6 kgf
m, 405 ± 43 lbft).
2) After tightening, check to ensure that nut and
track link contact surface contact against each
other securely. .
Tighten sequence
 Tighten bolts in the sequence given in right
fig.
 With bolts tightened, check bolts and track
link mating face to ensure they contact
securely.