Maeda MC815C, Руководство по эксплуатации, Страница: 299 / 426

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9.2 IRREGULAR MAINTENANCE
[1] INSPECTION/ADJUSTMENT OF RUBBER TRACK TENSION
The wear condition of pins and bushes around safe rubber track varies depending on the working
condition and the soil quality. Check the tension of rubber track time to time to maintain the
standard tension.
Perform the inspection and adjustment on hard and level ground.
[Inspection]
1. Set the engine to the low idling mode and forward by the
contact length and stop slowly.
2. Place a lumber (3) on the rubber track across the idler
(1) to the upper track roller (2).
3. Measure the maximum slack between the upper side of
the rubber track and the lower side of the lumber.
Standard slack (a) : 10 – 20 mm.
[Adjustment]
If the result was lower than standard tension, make adjustments as below.
[To increase tension]
• Have a grease pump ready.
1. Inject grease from the grease nipple (1) using
grease pump.
2. Set the engine to the low idling mode and forward
by the contact length and stop slowly to check that
the tension condition is appropriate.
3. Check the tension of rubber track again.
If the tension is not appropriate, make another
adjustment.
CAUTION
Grease injection is effective up to the point the
dimension (S) is 0 mm, but if it is still loose, wear of
pins and bushes increases.
Rotating or replacing pins and bushes are required.
Ask us or our sales service agency for repair.