HappyJapan HCD2-1501-40, Maintenance Manual

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3-6-2 Exchange of moving knife
1. Remove needle plate.
2. (1)
Refer to “9-1 How to enter maintenance mode” and
enter maintenance mode.
(2) Press Machine Test .
(3) Press
# 7 Cutter Test
and open moving knife.
3. Remove the nut of knife shaft.
<Spanner> 7mm
4. Remove the knife shaft.
5. Exchange moving knife
.
6. Fix moving knife with knife shaft and
nut.
7. Referring to [3-6-4 Adjustment of moving knife and
fixed knife], check how well thread is cut and adjust,
then finish this process.