11
www.parker.com/euro_pneumatic
13. Troubleshooting
Fault
Cause
Corrective Action
Torque
Speed
Motor
Motor
Motor operates,
too low
too low
does
is hot
but becomes
not
slower during
turn
operating
Dirt or foreign
Check and clean
objects in motor
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•
•
Motor is rusty on
Check and clean
Incorrect gap play
Re-adjust gap play
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•
between rotor and
of motor
bearing cover
Air pressure is
Increase air
too low
pressure
No air; shut-off
Open shut-off
valve is closed
valve
Hose diameter
Use a hose with a
is too small
larger diameter
Exhaust air is
Check and correct
being throttled
Internal parts
Disassemble and
are frozen
repair motor
Compressor is too
Supply larger
•
•
small; air volume
volume
is too low
Air supply is
Optimise
•
•
located too far
installation
from the motor
Insufficient
Provide the required
lubrication
air quality
Worn vanes or
Exchange vanes
vanes are jammed
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