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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 /
Silencer 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
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 / silencer 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)
30
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