22
To
Time
the
Sewing
on
the
top
of
the
finger
of
the timing
gauge
(V2,
Fig.
20)
when
the
needle
bar
is
on
its
upward
stroke.
When
the
needle
bar
IS
I
I
FIG.
20.
SHOWING
NEEDLE
AND
HOOK
CORRECTLY
TIMED
in
this
position,
the
point
of
the
hook
should
be
at
the
left
of
the
needle,
as
shown
at
“X2”
in
Fig.
20,
if the
hook
is
ctl
timed.
the
hook
is not
correctly
timed,
tip
the
machine
back
on
its
hinges
and
remove
the
large
circular
cover
plate
at
the
left
on
the
underside
of
the
bed,
then
loosen
the
two
set
screws
(Z2
and
Fig.
21,
page
23)
in
the
large
gear
Fig.
21)
at
the
end
of
the
rotating
shaft,
and
turn
the
hook
until
point
is
just
visible
at
the
left
of the
needle
as
shown
at
“X2”
m
Fig.
20.
23
To Time
the Sewing
then firmly tighten the two set screws (Z2
and A3,
Fig.
21)
in the
large gear, being
careful to see that the gear
is pushed
against
the
FIG.
21. SHOWING
FOR CHANGING
or
bushing (B3,
Fig. 21) after the end
play has been taken
up in the
rotating
shaft. This
will ensure quiet
running gears.
Access to
the rotating shaft,
for taking up the end
play, is obtained
by
removing
the small circular
cover plate at the right
on the under-
side of the
bed, so that the shaft can
be moved
to the left by hand.
When the
hook has been correctly timed,
replace the
two circular
cover
plates.
IMPORTANT:
With the exception
of the bevel
gear (Y2,
Fig. 21) and the
spiral driving gears
of the motor
and clutch,
great care must
be taken not to disturb
or
change the
adjustment of
any of the other
gears in the machine,
as
they
are carefully
ground and
positioned to gauge at
the factory
and do not
require any adjustment.
To Set the Needle Bar
at the Correct Height
See that the
needle is pushed up into the
needle bar as far as
it will go.
Turn the balance
wheel over toward you until the
lower tim-
ing
mark on the needle
bar connecting stud (U2,
Fig. 20, page 22)
Hook—Continued
ill."
“
lull
gi
.
i
, “
Milli “U
just-visible
COITIen
che
A3,
(Y2,,
its
Hook—Continued
GEAR ADJUSTMENT
Tmn Hoox
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