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Heathkit HD-10 - Switch Adjustment

Heathkit HD-10
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ADJUST SHOULDER SPACER
SO
IT JUST TOUCHES INSIDE
LEAF SPRINGS. AND DOES N
PULL
LEAF
SPRINGS AWAY
LEVER WHEN.TI
T REST.
ADJUST
SWITEH
BRACKET
L
SO
KEY LEVER IS CENTERED
BETWEEN SWITCH BRACKETS N
AND
P.
Detail
8F
Refir to Detail
BF
for the following steps.
4
Loosen the screws in bracket
L
and posi-
,
tion it so the key lever is centered be-
tween switch brackets N and P. Tighten
the screws to secure bracket
L
in place.
(1,r
Without changing the centered position
of
the key lever, slide spacer
M
toward the
sear of
the
ballast plate so the shoulder
just touches each leaf spring. Then tighten
the screw in the spacer. Be sure the key
lever is still centered between switch
brackets
N
and
P,
and that the leaf springs
are not spread away from the key lever.
F
SWITCH
ABJUSTMENT
t
Refe 'to Pictorial 9A for the following steps.
7'
(dWithout moving switch bracket
N,
loosen
the screws of switch
R
and move this switch
toward the key lever slightly. While holding
the switch
in
place with your fingers, move
the key lever to the left (toward switch
R)
until it touches bracket
N.
You should hear
switch R snap just before the key lever
touches the bracket.
If
it does not snap,
move the switch a little more toward the
key lever, and again move the key lever
to the left. When the switch
is
positioned
so
it
snaps just before the key lever
touches the switch bracket, tighten the
switch screws. Donot overtighten the switch
screws as the switch may be damage4
(
'
)
Referring to Pictorial 9B, adjust switchS in
a like manner. This time however, move
'
the key lever to the right (toward switchs).
When the switch
is
positioned so it snaps
just before the key lever touches switch
bracket P, tighten the screws of switch S.
NOTE: After adjustment, one switch may
be
closer to the switch lever than the other one.
This
is
because the inward travel of the switch
plungers may
be
different. This will be cor-
rected in the following steps.

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