Wacker Neuson 28Z3, Service Manual

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SHB 28Z3 EN – Edition 2.0 * 28z3s314.fm
3-51
Maintenance
Adjusting track tension
Danger!
The lubricating valve can be squeezed out due to the high grease pressure in
the hydraulic ram.
Danger of personal injury!
☞
Open the lubricating valve only very carefully and do not unscrew it more
than a revolution.
☞
Slacken no other component except the lubricating valve.
☞
Keep your face away from the lubricating valve connection.
➥
Contact your Wacker Neuson dealer if this does not reduce track ten-
sion.
☞
Release grease only as described below.
➥
Observe the safety instructions!
Caution!
Excessive tension of the tracks causes severe damage to the ram and the
track.
☞
Tighten the tracks only up to the prescribed measuring distance
Tightening the tracks
☞
Inject grease with the pump through lubricating valve A
☞
Check the tension is correct by starting the engine, letting it run at idling speed and
slowly moving the machine forwards and reverse and switching it off again
☞
Check the tension of the tracks again
➥
If it is not correct:
☞
Adjust again
☞
Should the track still be slack after injecting more grease, replace the track or the seal
in the ram.
Reducing tension
☞
Place a suitable container underneath to collect the grease.
☞
Slowly turn lubricating valve A one revolution counterclockwise to release the grease.
➥
The grease flows out of the groove of the lubricating valve.
☞
Retighten the lubricating valve A .
☞
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 forwards
and reverse and switching it off again. Raise the machine again with the boom.
☞
Check the tension of the tracks again
➥
If it is not correct:
☞
Adjust again
Fig. 62: Tightening the tracks
A
Fig. 63: Draining grease