Service Parts Disassembly 8-51
Process Drive Motor and Gearbox
(PL 4.9)
Videos are available with instructions for replacing the Process Drive
Motor and Gearbox. Videos are located on the Phaser 8400/8500/8550
Product Training CD-ROM. Select Service and then select Process
Drive Procedures).
1. Remove the right side cover (see page 8-6).
2. Disconnect the drum heater wiring harness from the Relay Board to get it out of
the way and free other wiring harnesses from the gearbox cable restraint.
3. If you will be installing new or re-installing this gearbox, pin the gears in position
to ensure correct alignment on replacement (see the figure and following text).
Process Drive Motor
and Gearbox
Hole in gear
aligns with
arrow on
frame
Holes in process
drive frame aligns
with holes in
gears
Hole in gear
aligns with
arrow on frame
s8500-107
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