TO
REMOVE
AND
REPLACE
THE
HOOK
SHAFT
HOLD
GEARS
IN
MESH
HOOK
SHAFT
£)
Fig. 17
Remove
and
replace the
hook
shaft in the following manner:
1. Remove the sewinghook, as instructed on page 8.
2. Mark the two lower bevel gears Z
and
T, Fig. 17, with chalk or crayon, on one
tooth
of
one gear and the cor
responding space for that tooth in the other gear. This isimportant, as these gearsmay become separated during
removal
of
shaft. These marks will then make it possible to obtain the original mating position
of
the gears.
3.
Lx}osen
the two set screws #1 and #2 in hook shaft bevel gear.
While
holding the two gearsZ and T in mesh, as
instructed in Fig. 17, withdraw the old
hook
shaft and INSERT THE NEWSHAFT.
4.
Make
certain that set screw #1 seats over flat on the hook shaft.
Remove
all end shakefrom hook shaft, pushing
gear T, Fig. 17 toward the hook on the shaft. Securely tighten first set screw
#1,
then securely tighten the second
screw
#2.
5. Replace the sewing
hook,
as instructed on page 9.
6. Time the sewing
hook
as instructed on page 5.
NOTE: Set screw #1 is the first
of
the two set screws to appear on the hub
of
the bevel gear T as the machine
pulley is turned over toward operator.
-10-
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