SX™
Service and Maintenance Manual 3-80
960714-02B © 2007 I2407
SECTION 3 – COMPONENT REPAIR
PRINTHEAD CRADLE ASSEMBLY
PRIMARY RIBBON DRIVE BELT (con’t)
3. Loosen the set screws on the transfer shaft
pulley. This will allow the pulley to slide freely,
and also allow the transfer shaft to move side
to side in the bearings.
4. Slide the shaft into the bearing towards the
center of the machine until the belt can be
removed from the outer end of the shaft. When
sliding the shaft, there will be a nylon washer
that will be free to be removed from between
the clamp collar and the outer cradle plate
bearing. Do not misplace this washer, as it is
needed for proper machine operation.
5. Insert the new belt onto the shaft through the
gap created in step 4.
6. Slide the transfer shaft into the outer cradle
plate until the clamp collar and nylon washer
are tight against the bearing. Also, slide the
pulley tight to the inner cradle plate. Once in
position, tighten the pulley set screws on the
flat areas of the transfer shaft.
7. Reinstall the ribbon rewind drive motor. Be
sure to properly tension the new belt. The
center of belt span should displace about 1/16
th
of an inch when pressed with one finger
perpendicular to the belt travel (Refer
Machine
Adjustments: Checking Belt Tension
section
for a more detailed explanation).
8. Reinstall the outer cradle cover.
Figure 3-199. Transfer Shaft Pulley
Set Screws
Figure 3-200. Removing the Belt
Nylon
Washer
Remove Belt through This Gap