Maintenance service, every 10
hours
Track unit, checking shoe screws
Check the shoe screws daily.
If track shoe screws (A) are loose, the track shoes
are likely to be damaged.
1 Swing the superstructure to the side and raise
the track using boom down operation.
2 Turn the track slowly in forward and reverse
direction several time. Check for missing, loose
or damaged shoe screws and shoes. If needed,
tighten the screws to specified torque below.
EC140E L: 42 ± 4 kgf m (412 ± 40 N m) (303 ±
29 Ibf ft)
EC140E LM: 85 ± 5 kgf m (834 ± 49 N m) (614
± 36 lbf ft)
NOTICE
It is very important that loose track shoe screws and
nuts are removed fully and that the threads are
cleaned. Clean the track shoes before they are
installed and the screws tightened.
3 After tightening, check whether the nut and the
shoe are in full contact with the mating surfaces
of the link.
Tighten the screws in the order as shown in the
figure.
A Shoe screw
Order to tighten the screws
Maintenance
Maintenance service, every 10 hours
297
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