Service manual

Platen Belt (120 tooth)
Preparations
The exterior cover must be removed prior to proceeding. (980428-101)
Tools:
TORX tool with #T25 tip or 4mm allen head
52 980428-136 Rev. 1 Prelim.
Removal
1. Loosen the ribbon belt by rotating the belt
tension idler counter clockwise. Lift the
ribbon belt off the ribbon and clutch pulleys.
Do not disconnect the print head cable.
2. Loosen the four (4) M5x14 socket head
mounting screws securing the motor to the
center panel. Manually walk the platen belt
off the pulley.
Installation
1. Slide platen belt on the motor gear and then
onto the 42 tooth pulley inside of the pulley
clutch.
2. Place the belt on rewind pulley (behind the
power supply).
3. Place the ribbon belt around the belt tension
idler and lower pulley. Rotate the tension
idler counter-clockwise to provide slack. Pull
the belt over the ribbon pulley. Release the
tension idler.
4. Tighten the platen belt by sliding the motor
toward the rear panel. Secure the motor in
place. Refer to Adjusting Belt Tension for
setting the recommended belt tension.
Ribbon
Pulley
(60 Tooth)
Ribbon
Drive Belt
(324 tooth)
Platen
Pulley
Clutch
Belt
Tension
Idler
Rewind
Pulley
Motor Mounting
Hardware
Drive Belt
(120 tooth)