10 - 1
Care and maintenance
These maintenance intervals apply to the average machine running time in sin-
gle-shift operation. If machine running times are increased, it is advisable to
shorten these intervals.
10.01 Cleaning the hook area
Switch the machine off!
Danger due to unintentional
starting of the machine!
● Set needle bar at its top position.
● Open bed slide and take out bobbin..
● Unscrew and remove hook gib 1 (screws 2).
● Turn the balance wheel until the tip of
bobbin case 3 has entered the groove in
the hook race by about 5 mm .
● Take out bobbin case 3.
● Clean the hook race.
● When inserting bobbin case 3 make sure
that the lug of bobbin case 3 en-gages
the cutout in the bobbin-case position
stop.
● Screw on hook gib 1.
● Insert the bobbin and close the bed slide.
Fig. 10 - 01
21
3
2
5 mm
10 Care and maintenance
Clean hook area .....................................daily; more frequently if in continuous operation
Check oil level (hook-oil container) ................................................. daily, before operation
Check/adjust air pressure............................................................... daily, before operation
Clean air filter of air-filter/lubricator ............................................................ when required
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