Wacker Neuson 28Z3, Service Manual

Page: 261 / 264

SHB 28Z3 EN – Edition 2.0 * 28z3s810.fm
8-31
PowerTilt PTS06
8.24 Adjusting the play on the PowerTilt
Checking the circumferential play
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Switch off the machine
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Fit and raise a bucket
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Apply load to one side of the bucket (have one person press it down)
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Mark the position on the housing and the shaft
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Apply load to the other side of the bucket and mark again.
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Circumferential play (1.5°) as torsion between shaft and housing in mm (in)
Possibility 1: Air inclusions in the hydraulic system (PowerTilt and hydraulic lines) can
cause excessive play on a new PowerTilt. Bleed the PowerTilt via the hydraulic
connections on the housing. Repeat this procedure several times if necessary.
☞
Bearing wear can cause the shaft to have axial play in the housing.
Possibility 2: axial play > 0.5 mm (0.02”) -> adjust the PowerTilt. If adjusting requires
more than half a revolution, or if play cannot be remedied with the adjustment, replace the
internal bearings.
Caution!
If bearings are not replaced:
☞
Damage to the end cap, shaft and housing
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Slacken and remove the screws of the securing ring.
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Press the securing screw out of the oscillating-flange clearance by screwing in the set
screws.
Notice!
To remove/mount the securing ring, slacken the fastening screws of the shaft on
the other side.
Fig. 82: Dimension of circumferential play
Dimension of
circumferential
2nd mark on housing
matches mark on shaft
1st mark on housing
and shaft
Circumferential play
Model Dim.
PTS06 2.0 mm (0.08”)
Fig. 83: Slackening the screws of the securing ring
Fig. 84: Adjusting the set screws