Slip Clutch Adjustments - AMF SERIES S104-130 Parts And Service Manual

S-104-100

SLIP CLUTCH ADJUSTMENTS

The slip clutches are factory set to absorb starting load by slipping 45 to 100 degrees upon pick-up of the
first stitch. The clutch may slip within this range without any problem, but needs to be periodically
checked with gauge 03.0403.0.000. To check the amount of slippage, perform the following steps:
1. Put a mark on spur gear A in relation to the position of the lockwasher tab B.
2. Turn the power on. Cycle the machine through one stitching cycle. Turn the power off.
3. Check the amount of slippage by lining up the '0' marking on gauge C to lockwasher tab B, and bend
the gauge around spur gear A. Read the amount of slippage on gauge corresponding to the mark put on
the drive hub.
4. If the mark falls short of the 45 degree position, open lockwasher tab B and move lock nut D approxi-
mately 15 degrees counterclockwise and bend lockwasher tab B onto slot of lock nut D. Repeat step 3.
5. If the mark is beyond the 100 degree position, open lockwasher tab B and move lock nut D approxi-
mately 15 degrees clockwise and bend lockwasher tab A onto slot of lock nut D. Repeat step 3.
6. Although the machine will function with a tight clutch (under 45 degree slippage), it will cause exces-
sive wear on all stitch drive parts. Eventually, it will break the clutch dog.
Revised 09/2004
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