Komatsu PW160-7K Series, Operation And Maintenance Manual

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OPTIONS, ATTACHMENTS ROTATING ARM
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EVERY 500 HOURS SERVICE
Maintenance for every 100 and 250 hours service should be
carried out at the same time.
2. ARM ROTATION MACHINERY CASE
1. Disconnect hoses (2), (5) and (6) from the swing motor.
2. Plug the ends of the hoses and the ports in the motor.
3. Remove 14 bolts (3 x4), (4 x2) then remove 8 bolts (1) from
the swing motor and lift off.
4. Refill the greasebath with grease.
5. Replace the swing motor an and tighten the 14 bolts
(Apply liquid gasket LG-6 to the mating faces and bolt holes).
6. Reconnect the hoses (2), (5) and (6) to the swing motor.
EVERY 1000 HOURS SERVICE
Maintenance for every 250 and 500 hours service should be
carried out at the same time.
3. ARM ROTATION MACHINERY CASE
1. Remove plug (1), drain the oil.
2. Add 1.6 liters of SAE 90 Gear Oil through the plug hole.
3. After adding the oil, check that it is at the specified level.
4. Replace the plug and retighten.
* Tightening torque: 56 kg
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