Komatsu PC88MR-10 Operation & Maintenance Manual page 270

Hydraulic excavator, serial numbers f10236 and up/7001 and up
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HANDLE ROAD LINERS AND RUBBER SHOES
If the rubber parts of the road liner are worn and damaged and the mounting bolt heads are damaged, re-
place the shoes with new ones immediately. If the head of a bolt is crushed, that bolt cannot be removed.
When installing the road liner, always install to all the links of the right and left tracks.
If it is installed partially or to only one portion, its service life is shortened remarkably.
Precautions during operation
When operating, observe the following.
Do not make a pivot turn on a concrete road since rubber marks are made on the road surface.
Avoid turning sharply whenever possible, since that can cause early wear and chipping of the road liner and
rubber shoe.
Avoid turning on a large level difference. When riding over a level difference, travel perpendicularly to it to
prevent the shoes from coming off.
Once you raise the machine by using the work equipment, lower it slowly.
Avoid handling crushed and oily material (cakes of soybean, corn, rapeseed, etc.) or wash the machine with
water after the work.
Avoid handling salt, ammonium sulfate, potassium chloride, potassium sulfate, and triple superphosphate or
wash the machine with water after the operation since they corrode the adhesive of the core metal.
Do not use the road liner on seashore since the adhesive of the core metal is corroded by the salt.
When the road liner or rubber shoes is used to handle salt, sugar, wheat, soybeans, etc., if it has a deep
cut, rubber chips may be mixed in the handled material. To prevent this, repair any cut before using.
Do not rub the road liner against concrete ridges, walls, etc. during operation.
The road liner and rubber shoes are very slippery on wet steel plates, snow-covered or frozen road surfa-
ces, or clay soil. Beware of slipping and skidding when traveling or working on a slope.
If the road liner and rubber shoes are used in an extremely cold district, their characteristics change and
their service lives are shortened accordingly.
Use the road liner in a temperature range from -25 to +65 °C.
Use the rubber shoes in a temperature range from -25 to +55 °C due to the properties of rubber.
Take care not to damage the road liner and rubber shoes with the bucket during operation.
Keep the rubber shoe tension proper to prevent the rubber shoes from coming off the rollers.
If the tension is low, the rubber shoes comes off under the following conditions.
Even if the tension is proper, take extreme care during the work.
1.
Do not steer the machine on curb stones or rocks
where there are level differences (approximately
20 cm or more). When riding over a level difference,
drive at right angles to it.
3-198
WENAM00042
OPERATION

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