Attaching The Needle Bar Block Assembly; Adjusting The Height Of The Needle Bar - Brother RH-981A Service Manual

3-8-12. Attaching the needle bar block assembly

The needle bar block assembly is a set of the needle bar gear, the needle bar block, and the washers.
When disassembling and then reassembling the needle bar block assembly, align the white marks of the needle bar
gear, the needle bar block, and the collars with each other.
3744Q
1. Insert the two needle bar guides (2) into the hole in the needle bar block (3) on each side, taking care of the white
paint mark of the washer (1).
2. Attach the two spring (4) using the needle bar guide support plate (5), and tighten the two screws (6).

3-8-13. Adjusting the height of the needle bar

White paint marks
Approx. 62 mm
3746Q
RH-981A
1. Turn the pulley to set the needle bar level feed link (1)
at its highest position.
2. Set the height of the needle bar (2) to approx. 62 mm,
eliminate end play between the two needle bar
clamps (3) and the needle bar level feed link (1), and
tighten the two screws (4).
3. ASSEMBLY
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