SX™
Service and Maintenance Manual 3-83
960714-02B © 2007 I2407
SECTION 3 – COMPONENT REPAIR
PRINTHEAD CRADLE ASSEMBLY
DC ROLLER CLUTCH (con’t)
6. Reinstall the DC roller clutch pulley into the
machine. When pushing the transfer shaft
back into position, remember the two nylon
washers (one on each side) of the pulley. Be
sure the belt is fully engaged in the pulley
teeth.
7. Once each end of the transfer shaft is flush
with the outer and inner plates, slide the clamp
collar and nylon washer to the outside plate
and tighten into position. Slide the transfer
shaft drive pulley tight to the nylon washer and
bearing on the inner plate and tighten the two
set screws on the two flat areas of the shaft.
8. Slide the belt tensioner towards the belt until
the belt is properly tensioned. When tightened
correctly, the belt should deflect about 1/8
th
inch when depressed with one finger at the
center of belt span. Once in position, tighten
the two mounting screws.
9. Reinstall the rear cover hinge by tightening the
two screws that hold it into position.
10. Reinstall the outside cradle cover.
SECONDARY RIBBON DRIVE BELT
This belt runs between the DC roller clutch pulley
on the transfer shaft and the adjustable slip clutch
on the ribbon rewind hub shaft.
1. Ensure the secondary ribbon drive belt has the
proper tension. Refer to
Machine
Adjustments: Checking Belt Tension
section
to determine the correct tension.
2. Perform a visual inspection of the belt. If it is
showing signs of wear, such as cracking or
fraying, it needs to be replaced.
Refer to the
Machine Adjustments: Checking
Belt Tension
section.
Transfer Shaft Drive Pulley
Clamp Collar
Figure 3-207. Positioning the Transfer Shaft
Note: Cradle Cover Removed for Clarity
Flush
TESTING
Always remove electrical power from the
SX
prior to performing any maintenance
on the machine.
WARNING
ADJUSTMENT