OM ET18/20/24 us 1.3 * et18_20_24w710.fm 7-51
7
Tightening the tracks
1. Place the machine on firm, level and horizontal ground.
2. Raise the machine evenly and horizontally by means of the boom and
the stabilizer blade.
3. Stop the engine.
4. Operate the control lever repeatedly to release the pressure in the
hydraulic system.
5. Pump grease with a grease gun through lubricating valve A.
6. Check the tension is correct by:
- starting the engine,
- letting it run at idling speed without any load
- slowly moving the machine forward and reverse and switching it off
again.
7. Check the track tension again.
➥ If it is not correct:
8. Adjust again.
9. Should the tracks still be slack after pumping more grease, replace the
tracks or the seals in the hydraulic cylinders. Contact a Wacker
Neuson service center in this case.
Reducing tension
1. Place a suitable container underneath to collect the grease.
2. Slowly turn lubricating valve A one revolution counterclockwise to
release the grease.
➥ The grease flows out of the groove of the lubricating valve.
3. Retighten the lubricating valve A.
4. Check the tension is correct by:
- Lowering the machine to the ground, starting the engine, letting it run
at idling speed without any load and slowly moving the machine
forward and reverse and switching it off again. Raise the machine
again by means of the boom and the stabilizer blade.
5. Check the track tension again.
➥ If it is not correct:
6. Adjust again.
Use a suitable container to collect engine/machine fluids as they
flow out and dispose of them in an environmentally friendly
manner.
Fig. 271: Tightening the tracks
A
Fig. 272: Releasing grease
A
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