Service Manual
Looseness of the needle bar bearings will cause irregular stitching and may cause needle
breakage.
1. Turn hand wheel toward front of the machine to bring needle bar to its lowest position.
2. Grasp needle clamp (C) and check for excessive front-to-back play.
3. Place needle bar in right needle position.
4. Push needle clamp fully to the left and check for binding by slowly releasing the needle
bar. It should move smoothly to the right.
5. There must be no excessive play or binding in the needle bar bearings.
1. Remove the face plate.
2. Loosen screw (D).
3. Press up on collar (E) by means of a small screwdriver with just sufficient pressure to
eliminate play in ball bushing (F), yet not bind bushing in its housings.
4. Tighten screw (D).
5. Recheck front to back play of needle bar as described in "Checking items 1 and 2" above.
If excessive play persists replace spring in upper bushing assembly.
Check:
Adjustment:
Needle Bar Bearings
61
Rev. n .
o
358487-001 Mar./2005
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