5
The hook
Requirements
The hook must not be damaged. Special attention
should be given to see that the tip has not been
damaged or worn, causing burrs or unevenness.
Action
Exchanged the damaged hook.
Spare parts. See RA, page 9.
Ordering No: Hook 401 1521-01.
The driver
Requirements
The surface of the driver against the hook must not
be damaged, worn or uneven in any way which
might hinder the passage of the thread.
Action
The damaged driver (9/10) should be exchanged.
Turn the handwheel until the needle is at the highest
position. The slot in the driver is now in the middle,
underneath the feed dog. Undo the three screws
(9/16) which hold the hook cover-remove the
hook cover and the hook. Then undo the three
screws (9/11) in the driver, and exchange it for
a new one. Note the position of the slot in the
driver. Thereafter “The distance between the hook
and the needle” should be checked according to
page 21, “The gap between the hook cover and
driver” according to page 19, and “Setting the
timing for the hook in relation to the needle”
according to page 20.
Spare parts: See RA, page 9.
Ordering No: Driver 411 6415-01.
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