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(B-138)
SPEED
ADJUSTING
LEVER
STOP
PLATE ADJUSTtlENT
There should be
.00611
to
.050"
clearance between the adjusting lever
wearing strip
and
the governor when the speed adjusting lever is held against
the stop plate. To adjust, position the adjusting lever stop plate
means
ot
its elongated mounting holes.
(See Figure
83B
for location of
GOVERNOR
SHDaS ADJUSTMENT (Figure
83B)
With the governor speed adjusting lever in its unoperated position.
there should be at least
.00611
clearance between the adjusting lever wearing
strip am the speed adjusting wheel when the wheel is opposite the wearing
strip, the wearing strip is tight against the .casting, and all the em thrust
of the motor armature is taken up
in
a direction to make this clearance a
�.
Adjust by means ot shims placed on the armature shaft between the
governor hub and the end ;(rame casti ng of the .100tor. (If wearing strip is not
absolutely tight against the casting, bem it until it is.)
SYNCimONOUS KOTOR ADJUSTMENTS
ON SYNCHRONOUS WTORS WITH
A THREE
BRUSH STARTING SWITCH,
THE
SWITCH SHOULD
MEET THE FOLLCNIING
REQUIREMENTS :
NOTE:
These requirements should not be checked unless there is reason to
believe the starting switch is out ot adjustment.
(1)
Remove the motor unit from the base and remove the motor tan
and
pinion.
(2)
Remove the switch end shield
screws
and the switch c
ommu
tator mount
ing
screws.
Remove the switch end shield..
(3)
Pull
out
the rotor
u
n
t
il the brush holder spring is accessible and
remove the spring.
(4)
The tension ot the spring tor
60
cycle motors should measure
3
to
3-3/4
ozs. when extended
to
a
length of
5
inches, using an
8
oz.
scale.
The tension ot the spring for
50
cycle motors should measure
1-l/2
to
2-l/2
ozs. when exten ded to a length of
5
inches, using
an
8
oz. scale.
(;) The brush holders should be mounted
b,y
means of the center set ot
mounting holes and should be free.
(6)
The brush holder stop pins should
be
safely within the holes of the
fibre disc when
all
the play in the brush holders has been taken up
to make the engagement of the pins with the disc a
minimum.
(?)
Replace the brush holder spring, making certain that the spring eyes
are tully engaged with each other.
(8) Replace the
switch
c
ommu
tator screws
and tighten the
two ecrewe
alternately a little at a
time untU both screws are
t
igh
t
.
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