Disassembly; Assembly - IBM 5256-1 Maintenance Information Manual

126
FORMS MOTOR AND EMITTER
(CONTINUED)
Disassembly
1. Power off.
2.
3.
Remove the forms motor and emitter from the
side frame (126).
Remove the emitter outer cover
IEJ.
4. Loosen the clamp collar
lB.
5.
6.
7.
Remove the 2 adjusting screws
D
from the back
of the base.
Remove the screw that holds the photocell
assembly
ID
and remove the photocell assembly.
CAUTION
Do not use force on the disk; doing so will bend
or scratch it.
Remove the inner cover
lEI
and the disk and gear
assembly from the motor shaft by using force on
the motor gear as shown.
8. Remove the clip
II
that holds the idler gear
II
and lift off the gear.
1-24
. 9. Remove the 3 screws
II
plus the bolt and nut
II
that fasten the base
II
to the motor
II.
10. To put the motor and emitter together, use the
assembly procedure.
Assembly
1.
2.
Install the 3 screws
II
plus the bolt and nut
II
that fasten the base
II
to the motor
II.
Do not
tighten the screws and bolt now.
Install the idler gear
II
with the longest hub
toward the motor and install the clip.
3. Install the inner cover
lEI
with the 2 adjusting
screws
D
finger tight.
4. Place the photocell assembly
III
on the disk and
, gear assembly
II
and slide them on the motor
shaft.
5. Fasten the photocell assembly with its mounting
screw.
6. Center the forms emitter disk in the opening. Do
not scratch black paint from around the disk holes.
A 0.76 mm (0.030 inch) thickness gauge should
slide freely on the upper side of the disk. Check
the gap at several points on the disk.
7. Tighten the clamp collar
IE
and check the gap.
8. . Turn the gears so that a hole in the idler gear
aligns with the gear shafts. Then turn the emitter
base
II
on the motor so that the gears engage
tightly.
9. Tighten the screws and nut, and check play in
several positions of the idler gear. Adjust again if
needed.
10. Install the outer cover
~.
11. Install the motor and emitter assembly in the
printer (126).