Spring Drum (Hc) - Centronics 101AL Technical Manual

DRIVING MECHANISM
3. Insert flat gauge between spacer (HB-62) and hub of drive
pulley (HB-60). Maintain a gap of 0.002-0.004-in. max.
(0.05-0.10 mm) and tighten bracket to this dimension.
HB-51
0.002-0.004-IN. MAX
(0.05-0.10 mm)
TOP VIEW
Figure 5-3A. BUSHING END-PLAY ADJUSTMENT FOR PRELOAD CLUTCH SHAFT (HB-50)
5.2.4 SPRING DRUM (Figure HC)
5.2.4.1 Operation
1. Provides spring tension for return of head.
5.2.4.2 Removal/Replacement Procedure (with left cover down)
1. Release spring paw] (HC-10) by slowly loosening nut (HB-12)
and screw (HC-11).
2. Actuate pawl (HC-10) to release spring tension step-by-step.
Note
Spring may unwind suddenly with
excessive noise.
3. Roll belt (HA-36) off pulley (HC-5).
4. thee yt (HC-9) and remove drum assembly from brackets
e HC-6, 7 e
5-18