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7 Trouble Shooting
In the case of a malfunction, check and observe all instructions contained in
this technical documentation. If necessary, adjust equipment as needed.
Possible faults and their causes are shown below:
E
RROR
Screwdriver does
not start
Insufficient
Power
Driver does not
shut-off or
ratchets
If necessary, please send tool to DEPRAG for service.
R
EASON
No air, Shut-Off valve
is closed
Valve pin is too short
or missing
Clutch is not engaged Mount clutch correctly - refer to:
Air pressure too low
Restriction in air hose Remove bends or other
Valve Pin too short
Hose I.D. is too small
Screen Support
clogged
Vanes are worn
Air pressure is too low
for required torque
value
Valve Pin is too long
S
OLUTION
Open Shut-Off valve
Test valve pin length according to
picture: Actual size of valve Pin
and replace valve pin, if
necessary
Range- and exchange of clutch
spring
Minimum air pressure should be
90 PSI for maximum performance
restrictions
Check required length of valve pin
according to picture: Actual Size
of Valve Pin. If needed, exchange
valve pin.
Use required hose I.D.
Clean screen support or
exchange with new one
Exchange vanes
Maintain air pressure of 90 PSI
Check length of valve pin, either
shorten or replace valve pin
(picture: Actual Size of Valve Pin)
23
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