Adjusting The Work Clamp Lift Amounts - Brother RH-9820 Service Manual

7. ADJUSTMENTS

7-18. Adjusting the work clamp lift amounts

Adjust the work clamp lift amount <a> to one of the values given below.
<For -00, -01 specifications>: 12 mm
<For -02 specifications>: 16 mm
* The work clamp lift amount <a> is the value which includes the play in crank lever B (1) and the clamp lever (2).
* Carry out adjustment for both the left and right work clamps. (The following describes how to adjust the lift amount for the
right-side work clamp.)
3. Insert a block with a thickness of 12 mm or 16 mm or a gauge (10) in between the support point of work clamp R (8) and the
needle plate (9).
4. Loosen the screw (12) of the clamp driving lever (11).
5. Push section (B) of crank lever B (1) upward so that the tip (13) is pressed against the end of clamp lever R (2) as shown in
the illustration.
6. While holding the parts in the position in step 5, tighten the screw (12).
NOTE:
Check that work clamp R (8) is pressed securely against the block or the gauge (10).
7. Install feed base cover R (7) and feed base cover U (4).
* Adjust the lift amount for the left-side work clamp in the same way.
161
1. Remove the two screws (3), and then remove feed base
cover U (4).
2. Remove the six screws (5) and the shoulder screw (6),
and then remove feed base cover R (7) at the right side.
0508B
(Viewed from directly to the right)
RH-9820
0509B