Deprag 347-228-31LV, Operating Instruction Booklet

Page: 12 / 40

12
4.1. Range and Exchange of Clutch Spring
The torque range of the DEPRAG Screwdriver is adjustable. Please see a
listing for the torque ranges of the color-coded springs below.
Torque Range of the individual clutch spring:
P
ART
N
O
.
WIRE
-
Æ
COLOR TORQUE
"
MIN
.”
TORQUE
“
MAX
."
326391 3,4 mm Black appx. 2,5 Nm / 22 in.Ibs. appx. 4,7 Nm / 42 in.Ibs.
323034 3,2 mm Violet appx. 1,7 Nm / 15 in.Ibs. appx. 3,4 Nm / 30 in.Ibs.
323035 2,8 mm Green appx. 1,2 Nm / 11 in.Ibs. appx. 2,0 Nm / 18 in.Ibs.
323036 2,2 mm Red appx. 0,4 Nm / 4 in.Ibs. appx. 1,25 Nm / 11 in.Ibs.
323037 1,6 mm Yellow appx. 0,3 Nm / 3 in.Ibs. appx. 0,5 Nm / 5 in.Ibs.
All torque values are based on 90-PSI (6,3 bar) air pressure. Torque values
are estimated data which may differ – depending on the type of screw joint.
Exchange of clutch spring
To avoid loosing individual small parts, it is recommended to
only disassemble the machine on top of a flat work surface.
1. Disconnect screwdriver from air supply.
2. Unscrew cylinder head screw 800486 from guide bolt and take off reduc-
tion gear.
3. Unscrew clutch bearing 386437 B (AF 24, left-hand thread).
4. Take out clutch complete.
5. Insert the supplied hand screwdriver 326240 into the half-round bore of
the lock ring and turn hand screwdriver clockwise, until the adjustment
nut comes off.
6. Pull off lock ring.
7. Remove clutch spring, replace with new clutch spring and reassemble
the clutch in reverse order.
8. Insert clutch into clutch bearing and tighten clutch bearing to the
DEPRAG-Screwdriver (AF 24, left-hand thread).
Attention
The claw of the clutch must engage with the claw of the
spindle.
9. Slide the reduction gear over the clutch bearing and tighten it by means
of cylinder head screw 800486 onto the guide bolt.
10. An external torque adjustment of the clutch is again possible (see chap-
ter Torque Adjustment ).