Working head can touch
the rim
Lock plate adjustment is not
correct or faulty
Adjust or replace the locking
plate
Working head screw loose
Tighten screws
The pedal is not located
at work position.
Return spring has trouble
Replace return spring
Operating difficulties of
the tire device
Muffler blockage
To clean or replace the silencer
Cylinder sealing ring damage
of pressure device
Replace sealing ring
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