Maeda MC815C, Operation Manual, Page: 300 / 426

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[To decrease tension]
It is highly dangerous if you drain the grease not following the procedure below. If the
rubber track is not loosened, ask us or our sales service agency for repair.
1. Loosen the plug (1) little by little to drain the grease.
If the grease is not drained smoothly, move the machine
back and forth a little.
• Do not loosen the plug (1) for more than one
rotation. If it is loosened more than one rotation, the
plug (1) can pop out due to the high-pressured
grease inside.
Do not loosen any other parts than the plug (1).
Also, make sure you are not facing the mounting
direction of the plug (1).
• If the rubber track is not loosened after performing
the procedures above, ask us or our sales service
agency for repair.
2. Tighten the plug (1).
3. 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.
4. Check the tension of rubber track again.
If the tension is not appropriate, make another adjustment.
[2] INSPECTION/ADJUSTMENT OF RUBBER TRACK SHOE BOLT
If you use the loose rubber track shoe bolt (1), it might break
off. Please re-tighten it immediately if any loosening is
detected.
[Re-tightening method]
1. Tighten with 137±19.6 N•m {14±2 kgf•m} first and check
that the nut and the shoe adhere to the link mating
surface.
2. After checking, re-tighten with the angle of 90±10
degrees.
[Tightening order]
The bolts should be tightened in the order described in the
figure on the right.
Tighten first and check that the nut and the shoe adhere to
the link mating surface.