Komatsu PC118MR-8, Operation And Maintenance Manual

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USE OF THE MACHINE AND RELATED CONTROLS
FUNCTIONING
3-174
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Do not use the machine lifting one track only by means of the work equipment. This damages the road liner
and may also cause them to come off.
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When the rubber parts of the road liners are worn out or damaged to the extent that the head of the bolts is
scratched, change the road liner immediately. If the bolt heads break, they cannot be removed any more.
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When installing the road liners, always install them on all the articulations and on both sides. If they are
installed on one side of the articulations only, their duration is reduced considerably.
Preserving the road liners 3
To avoid damaging the road liners, keep to the following instructions during work.
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Avoid carrying out counter-rotations on concrete surfaces.
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Avoid sudden changes of direction that may damage the road liners and wear them out.
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Avoid steering when moving on surfaces with considerable differences in height. When moving on obstacles
or surfaces with considerable differences in height, position the machine perpendicular to the obstacle to
prevent the road liners from coming off.
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If the machine has been raised using the bucket, lower it slowly.
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Avoid using the machine with materials that produce oil when crushed (soybean, corn, or plants remains that
are squeezed to produce oil); if working in these conditions is necessary, wash the machine after use.
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Avoid contact with materials which affects the adhesion of the steel core, such as salt, ammonium sulphate,
potassium chloride, potassium sulphate or calcium superphosphate; if working in these conditions is
necessary, wash the machine after use.
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Avoid using the machine in coastal areas because the salt affects the adhesion of the steel core.
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Always repair the road liners before use. When handling materials like salt, sugar, flour or soy seeds, the
presence of deep cuts in the road liners may cause the infiltration of these products in the tracks or the
dispersion of rubber pieces in the products.
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Do not rub the tracks against concrete walls or blocks.
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Road liners slip very easily on snow or icy surfaces. Take care not to slip while travelling or working on slopes.
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The characteristics of the road liners change when they are used in extremely cold areas, in particular their
duration is reduced.
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In consideration of the properties of rubber, it is advisable to use the road liners at temperatures included
between –25° C and +55° C
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Be careful not to damage the road liners when working the bucket.
To prevent the road liners from coming off, pay the utmost attention to the following. Even when the track tension
is correct, carry out every operation with the maximum care.
1. Avoid steering when travelling over curbs, rocks, or places
where there is a considerable difference in height (more
than 20 cm). If this cannot be avoided, always proceed
perpendicularly to the obstacles.
WEAM014802