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DEPRAG
10 Troubleshooting
Torque
Speed
too low
too low
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Fault
Drill oper-
Drill does
ated, but
not run
gets slower
during op-
eration
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Cause
Dirt or other
debris in the
drill
Rusty internal
parts
Air pressure is
too low
Hose ID is too
small
Exhaust air is
being throttled
Internal parts
are frozen
Compressor is
too small; air
volume is too
low
Air supply is
located too far
from the motor
Insufficient
lubrication
Worn or seized
vanes
25
Corrective Action
Check and clean
Check and clean or
repair
Increase air pressure
Use a hose with a
larger diameter
Check and correct
Disassemble and repair
drill
Supply larger air
volume
Optimize installation
Provide the required
air-quality
Exchange vanes
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