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-6-
WII.
PIN Ir,f[OR (Rffi'ER TO FIG. 3 )
A.
C'eneral
The spin nntor drives
the spinner and punp.
It also
is the electric
brake for the spin can and operated
thnough the lid
switctt.
The rnctor is nnunted in slotted
holes in the frarne.
In
replacenent,
slide
the rrctor away from the spin pulley
rlntil
spin belt
is only snq.
Do not overtighten
the
spin belt
or the spin can rnay be throrvn out of alignment.
Refer to Paragraph VII on alignment adjustment.
B.
Testing
I.
A resistance
test
throWh
the rnctor should read
6+ ohns.
2.
A wattage reading of 300 watts with no load in the
spin can will
indicate
a good nntor.
C.
Disassembly
l.
Rernove the rnrtor fran the frarne.
2.
Rerrcve hood.
3.
Rernove carbon bnrshes and check.
4.
To rgncve the armature,
remove the four screu,s
dlich
secure the support and end plate
to the
ca.sing and lift
off
the ea.sing.
5.
Grasp the arrnature and turn the pulley
counter-
clockw'ise off
the anmature shaft.
6.
Check the fan and lorver bearing"
The lower bearing
is part of the end plate
and nn:st be lubricated
with gnease.
7.
Ttre field
coil
ls secured in the nrctor ca^sing by
two scre\[E.
8.
Ctreck the upper bearing for wear.
The bearing is
secured to the casing with rivets.
A new bearing can
be secured with blind
rivets.
T . F . 2 6 - 2 2
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