Print Units With Pivot Pins - IBM System/32 Introduction And Maintenance Manual

Print Unit Assembly (Continued)
4.2.10.2 Print Units With Pivot Pins
I
DANGER
The ribbon clutch solenoid becomes very hot
aft:r use. Be sure it is cool before performing
ma mter1ance.
Service Check
Make sure print unit is to the right to prevent
pri nt cut off.
Removal
1.
2.
3.
4.
5.
Remove the printer covers, keyboard cover,
and divider (4.2.1).
If installed, remove print unit stop screw
II
by loosening the bottom locknut.
Unplug connectors P1 and P4. Remove
the ground wire, if installed (near spring
B).
Unhook spring
B
from the right end at
the screw. Remove two springs
m
from
under the print unit.
Open the print unit. Raise both ribbon
guides.
6. CAUTION
When removing the print unit, note that
P5 and P13 are still connected.
While supporting the print unit from both
ends, slide the assembly to the left until
the print unit clears the pivot pins
Il ,
and the guide(s)
II
clear the paper clamp
lever(s)
m .
7. Unplug connectors P5 and P13.
Replacement
1. Raise paper clamp lever(s)
m
2. Raise both ribbon guides.
3. Place the print unit on the base so that
the pivot holes are aligned to the left of
the pivot pins
iii .
Be sure the motor
cable (P4) is placed behind the print unit
as shown
m .
4. Replug connectors P5 and P13. Install
the ground wire under the clamp.
5.
6.
7.
8.
9.
While supporting the print unit, open the
print unit release lever
m .
Move the
assembly to the right until stopped by
the left pivot. Be sure the unit pivots
on both pins
Il
and the paper clamp
lever(s)
m
are in the guide(s)
II .
Hook spring
Ii
on the screw.
Replug connectors P1 and P4.
Install print unit support springs
m
Perform print unit stop screw adjustment
(4.2.10.3) .
10. Install the print unit covers.
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