Positioning Of Step Motor For Feeding - Feed Balance Basic Point - Singer Futura Quartet FQ-4 Service Manual

9. Positioning of Step motor for feeding
- Feed balance basic point
This adjustment would normally only be carried out if the feed step motor has been replaced.
Adjustment:
1. Turn off main power.
2. Remove front cover and back cover.
3. Move the feed step motor gear and loosen ONLY screw (2) at feed step motor gear (A) which is fi xed
with stepping motor axis for feeding.
2
A
4. Turn on machine and select button sewing (Zero feed).
NOT! If both screws are loose at this point - error #6 will apper in display.
5. Loosen screw (1) at pinion gear (A). The feed step motor gear is now disengaged from the motor.
A
1
5. Rotate feed step motor gear (A) and then tighten screw (2) at a position where pinion gear hits with
stopper (B)
6. Turn off the main power and then tighten screw (1)
2
Fig. 2 ---
A
B
14 Singer Futura XL-400 , FQ-4