Porter-Cable 6640 Power Screwdriver User Manual


 
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3. Release adjusting collar being sure that the depressions in the collar
engage the projections on the clutch housing.
4. Drive a test fastener in a piece of scrap material identical to that to be
used. Examine results of drive and make additional depth stop adjustment if
required as follows:
a) To increase depth of drive, repeat STEP 1 and turn adjusting collar so
that end of nutsetter extends beyond end of depth stop.
b) To decrease depth of drive, repeat STEP 1 and turn adjusting collar so
that end of depth stop extends beyond end of nutsetter.
Each
1
/8 turn of the adjusting collar results in .010" change in depth of drive.
5. Repeat STEPS 3 and 4 until desired result is obtained.
Fig. 4
A
C
B
D
Fig. 2
B
A
Fig. 3
B
C
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