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Others
Pivot between boom and arm; pivot of arm cylinder plunger; pivot at
base of bucket cylinder.
2.
Slewing bearing - every 250h
1.
Park machine on the flat ground.
2.
Lower the bucket onto ground.
3.
Idle engine at low speed for 5min.
4.
Turn the ignition switch to OFF and then take off the key.
5.
With the upper-structure standing still, add the grease into the two grease nipples.
6.
Start up engine to lift the bucket free from the ground, and then swing the upper-structure by 45 degree (1/8
cycle).
7.
Lower the bucket onto ground.
3. External meshing gear 45 of slewing bearing ---- every 500h
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