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3.5 Axial play for shafts running in plain bearings
Fig. 10: Axial play for shafts running in plain bearings
(1) - Plain bearing
(2) - Shaft
Shafts (2) running in plain bearings (1) are axially adjusted when the lever
(3) and the adjusting ring (4) touch the front face of the plain bearing (1).
Important
When setting components mounted on shafts running in plain bearings,
always ensure that the axial play of these shafts is as small as possible,
or 0.
3.6 Locking the machine in place
Some settings allow for the sewing machine to be locked in place at the
setting position. To do this, the locking peg from the accessory pack is
inserted into a slot on the arm shaft crank, blocking the arm shaft.
There are 2 locking positions:
• Position 1: Loop stroke position
• Position 2: Handwheel zero position
22
①
②
③
• 5 mm end in the large slot
• Setting the loop stroke and needle bar height
• 3 mm end in the small slot
• Setting the handwheel position and checking the bottom dead
center for the needle bar
(3) - Lever
(4) - Adjusting ring
Service Instructions 969 - 06.0 - 03/2019
Working basis
④
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