31
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
R
EASON
S
OLUTION
Screwdriver does
not start
No air, Shut-Off valve
is closed
Open Shut-Off valve
Valve pin is too short
or missing
Test valve pin length according to
picture:
Actual size of valve Pin
and replace valve pin, if
necessary
Clutch is not engaged Mount clutch correctly - refer to:
Range- and exchange of clutch
spring
Insufficient
Power
Air pressure too low
Minimum air pressure should be
90 PSI for maximum performance
Restriction in air hose Remove bends or other
restrictions
Valve Pin too short
Check required length of valve pin
according to picture:
Actual Size
of Valve Pin
. If needed, exchange
valve pin.
Hose I.D. is too small Use required hose I.D.
Screen Support
clogged
Clean screen support or
exchange with new one
Vanes are worn
Exchange vanes
Driver does not
shut-off or
ratchets
Air pressure is too low
for required torque
value
Maintain air pressure of 90 PSI
Valve Pin is too long
Check length of valve pin, either
shorten or replace valve pin
(picture:
Actual Size of Valve Pin
)
If necessary, please send tool to DEPRAG for service.
Summary of Contents for 397075 A
Page 21: ...21 5 2 Spare Parts Drawing ...
Page 22: ...22 ...
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Page 28: ...28 5 3 Spare Parts Drawings for Accessories ...
Page 29: ...29 5 4 Installation Tips for Screwdriver Spindle ...