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Checking the sewing foot lifting gear
Figure 34: Fitting the sewing foot lifting gear
(1) - Bearing points
(2) - Clamping screws
(3) - Clamping blocks
Installing the gearbox
Adjusting steps
1. Put the gearbox back into position.
2. Tighten the bearing points (1)
3. Fitting the electrical thread tensioner
4. Tighten the clamping screws (2).
5. Place the step motor in position.
6. Place the clamping block (3) on the step motor shaft.
7. Secure the step motors from the rear with 8 fastening screws (5).
8. Tighten the clamping blocks (3) with the screws (4). Access is via the
Order
After mechanical work on the sewing foot lifting gear, always calibrate the
sewing feet with the software ( Subitem Foot Calib, p. 69).
Service Instructions 650-16 Version 00.0 - Last Updated 09/2012
Access for the left gearbox is via the machine head. Access for the right
gearbox is possible via the opening for the removed thread tensioner.
( Chap. 15.1 Fitting and removing the electrical thread tensioner, p.
46)
Important: When fitting the thread tensioner, make sure that you do not
damage the cable, and that over-length cables are routed tidily.
Important: The top edge of the clamping block must be flush with the
top end of the sewing foot bar.
Important: Before fastening into place, move the gearbox slightly back
and forth to ensure that it is not skewed, but still moves freely after se-
curing.
machine head.
(4) - Screws on clamping blocks
(5) - Motor fastening screws
45
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