Komatsu Galeo PC27MR-2 Operation & Maintence Manual page 196

MAINTENANCE
MAINTENANCE PROCEDURE
Rubber Shoe Core Separations
If the rubber core has separated at one place or more, replace with
a new part.
Rubber Shoe Tension
If the rubber shoe is still slack even when grease is pumped in, replace with a new part or replace the seal inside
the cylinder.
If the track tension can only be increased to a level where the rubber shoe may come off, there may be not only
elongation of the rubber shoe but also damage to the grease cylinder.
Rubber Shoe Cracks
If the cracks between the rubber shoe lugs increase to a size of
approx. 60 mm (2.36 in) the rubber shoe must be repaired. Even if
the crack is small and short, if the steel cord can be seen inside,
carry out repairs immediately.
If the length is less than 30 mm (1.18 in) or the depth of the crack
is less than 10 mm (0.39 in), there is no particular need to carry out
repairs.
When making judgement whether to replace, repair, or continue using rubber shoe and load liner, please contact
your Komatsu distributor.
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