Deprag 347-228-31LV, Operating Instruction Booklet

Page: 11 / 40

11
4 Operation
Unless otherwise requested the driver is preset to max. torque with the
strongest clutch spring. Adjust clutch to the required torque value. If
necessary, exchange clutch spring.
Operating the clutch using a clutch spring which exceeds its
allowable torque, leads to a reduction of the torque accuracy.
The necessary torque adjustment can be tested, using a DEPRAG Torque
Wrench or Dynamometer (see
DEPRAG catalogs D3020 and D 3022 ). This
equipment can also be used to re-adjust the torque of the Screwdriver
Spindle.
Attention:
Push - to - start - screwdriver!
The flow pressure should not drop below 5 bar (71 PSI)!
The installation and connection of the Screwdriver Spindle requires the
following steps:
1. Adjust clutch to required torque setting (see paragraph: Torque
Adjustment ).
2. Install Screwdriver spindle according to picture: „Installation Tips for
screwdriver spindle“ .
3. Connect main air hose.
4. Connect pneumatic function control hose. This function control is under
pressure of 2,5 bar during actual screw-driving. If the function control
is not needed, the port has to be closed, otherwise there is a loss of
power of about 15 %.
Please make sure not to exceed the max. driver stroke (see Installation Tips
for screwdriver spindle ) during Screwdriving. The noise level can be further
reduced, when an exhaust connection with connected Filter/Silencer is used.
Attention:
Screwdriver is furnished with a left shut-off and left rotating
motor so that looking down at the screwdriver from the top (= air
connector) – it will turn counter-clockwise.
The offset gear reverses the operational and torque-out
direction so that screws will be assembled in clockwise order
and clutch will torque-out in this direction also.