Happy HCS2-1201-30, Руководство по обслуживанию

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9 5
3-6-6
Exchange of moving knife
1. Remove needle plate.
2. Remove knife drive shaft retainer.
3. Pull out knife drive shaft ass’y.
4. Exchange moving knife.
5. Setting drive link hole to moving knife, insert knife drive
shaft assembly.
6. Pushing down moving knife and knife drive shaft retainer
like putting them together, fix knife drive shaft retainer.
# Fix so that there is no backlash in upward and
downward direction and to to move lightly.
7. Referring to [3-6-8 Adjustment of moving knife and
fixed knife],check how well thread is cut and adjust,
then finish this process.