Every 50 Hours
Adjustment
Increasing the tension
1. Remove the cover (1).
2. Using the grease gun, insert grease
through the grease nipple (3) in the
grease discharge valve (2).
3. Inspect the crawler tension.
Decreasing the tension
1. Remove the cover (1).
2. Using the Spanner, slowly loosen the
grease discharge valve (2) and drain the
grease.
If the grease does not drain easily, move
the machine forward or backward.
3. Tighten the grease discharge valve (2).
• Tightening torque: 177 N·m (130 ft.lb.)
Lubricating the Slew Bearing
WARNING
Do not slew while lubricating. Doing so is
dangerous, as you may get caught in the
machine.
1. Ground the bucket, then stop the engine.
2. Use the grease gun to supply grease to
the grease nipple (1).
3. Start the engine, lift the bucket and slew
clockwise 90°.
4. Ground the bucket and stop the engine.
5. Repeat steps 2 to 4 above three times.
6. Wipe off the grease expelled from the
slew bearing and grease nipple.
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