l .
Remove four hex head screws, flat washers and lockwashers.
m.
Move motor sideways to disengage spur gears; then remove defective
motor.
n.
Remove brass shear pin from magnification spur gear.
NOTE
Replacement motor will be received without hole drilled in motor shaft.
o.
Position spur gear on new motor drive shaft. Tighten gear on shaft
with set screws.
Drill hole through shaft and spur gear collar.
p.
Drive in shear pin.
q.
Position new motor on motor support bar and allow spur gears to engage.
CAUTION
Before tightening hex head screws, check for proper alinement and meshing
of gears to avoid damage to gears.
r .
Tighten four hex head screws.
s .
Solder drive motor leads to rear of plug.
t .
Reconnect magnification cord to plug.
7-135
TM 5-6675-319-14
