Carriage Motor 4·55; Carriage Drive Belt 4·55 - IBM System/32 Introduction And Maintenance Manual

4.2.40 Carriage Motor
Removal
1.
2.
3.
4.
5.
Remove the printer covers (4.2.1) steps 1
through 3.
Unplug the carriage motor plug (P7).
Remove the four motor mounting screws
Pl·
Remove the belt from the motor pulley
II.
Remove the motor.
Replacement
1. Replace in the reverse order of removal
but do not tighten the four motor mounting
screws.
2. Adjust the carriage drive belt tension to
produce 0.100 inch
±
0.025 inch (2.54 mm
± 0.64 mm) deflection with 200 grams
force applied midway between the pulleys.
Tighten the screws.
4.2.41 Carriage Drive Belt
Removal
1.
2.
3.
Remove the printer covers.
Loosen the four carriage motor mounting
screws
rJ .
Remove the belt from the motor pulley
g.
Replacement
1.
2.
I nstall the belt.
Adjust the carriage drive belt tension to
produce 0.100 inch
±
0.025 inch (2.54 mm
± 0.64 mm) deflection with 200 grams
force applied midway between the pulleys.
Tighten the screws.
Belt Printer 50, 100, and 155 Ipm 4-55