Cutter Mechanism - Brother RH-981A Service Manual

3. ASSEMBLY

3-2. Cutter mechanism

1. Put the cutter cylinder (1) into the arm with the joints facing the front. Insert the cylinder support shaft (2) into the
hole in the cutter cylinder (1), and secure it using the two set screws (3).
2. Attach No.18 air tube to the upper tube, and No.19 air tube to the lower tube of the cutter cylinder (1).
3. Combine link C (4), link A (5), and link shaft C (6). Position them in the bed from below, and attach link shaft A (7)
to them using the set screw (8).
4. Attach the cylinder rod shaft (9) with the lubrication hole facing the left to the link C (4) and the cylinder rod, and
secure it using the set screw (10).
5. Insert the cutter lever shaft (11) with its slit facing the right, into the hole in the bed, the cutter lever (12), and the
hole in the bed, and tighten the set screw (13) on the screw flat of the cutter lever shaft (11).
6. Tighten the two support screws (14) on each end of the cutter lever shaft (11), and secure it using the two nuts
(15).
7. Hook the extension spring (16) over the cutter lever (12) and the tab of the bed.
8. Pass link shaft B (17) with its slit facing the right, through the slot of link A (5), and the hole in the cutter lever (12),
and tighten the set screw (18).
9. Wind the wick (19) around the right of link C (4), and insert the end of the wick into the lubrication hole in the
cylinder rod shaft (9).
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RH-981A
Seen from below
3719Q