Working basis
18 Service Manual 867 Version 02.0 - 04/2015
3.4 Surfaces on shafts
Screwing onto
the surface
Fig. 8: Surfaces on shafts
Some shafts have flat surfaces at those points where the components are
screwed on. This strengthens the connection and setting work is made
easier.
Always make sure that the whole screw is seated completely on the sur-
face.
3.5 Locking the sewing machine in place
With some settings, the machine has to be locked in place. To do this, the
locking peg from the accessory pack is inserted into a groove on the arm
shaft crank to block the arm shaft.
Fig. 9: Locking peg and arresting grooves on the arm shaft crank
There are two securing positions:
• Position 1: Loop stroke position
• 5 mm end in the large groove
• Setting the loop stroke and needle bar height
• Position 2: Handwheel zero position
• 3 mm end in the small groove
• Setting the handwheel position and checking the top dead center
for the needle bar
2
1
(1) - Surface (2) - Shaft
(1) - Locking peg
(2) - Large arresting groove
(3) - Small arresting groove
(4) - Arm shaft crank
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