5-28 OM 25-3503 us – Edition 4.1 * * 2503_3503b530.fm
Maintenance
Crushing hazard! Do not tilt or rotate the upper carriage dur-
ing lubrication.
Can cause serious injury or death.
• Do not rotate the upper carriage.
• Do not tilt the upper carriage if the machine is equipped with the VDS
option.
• – see chapter 3.23 Parking the machine on page 3-34
Lubricate only over a pit.
Lubrication points on slewing cylinder/ball bearing race of live ring
Lubrication points:
A (swiveling cylinder) lubricate once a day
B (ball bearing race of live ring) lubricate every 50 o/h or once a week.
Lubricating the ball bearing race of the live ring
1 Drive the machine over a pit.
2 Lower the stabilizer blade to the ground.
3 Lower and support the boom to prevent it from lowering into the pit.
4 Stop the engine, remove the starting key and carry it with you.
5 Apply grease to lubrication point B with one stroke of the grease gun.
6 Start the engine, raise the boom and the stabilizer blade.
7 Rotate the upper carriage by 90°.
8 Repeat steps 2 – 7 three times until the upper carriage is back in its initial position.
9 Rotate the upper carriage several times by 360°.
Fig. 291: Lubrication points on upper carriage
A
B
Fig. 292: Lubricating the ball bearing race of the live ring
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