Sharp SX 1075 Service Maintenance Manual page 102

DC ROLLER CLUTCH (con't)
3. Open the cradle cover, and locate the belt
tensioner for the secondary ribbon rewind drive
belt (this belt is located between the two cradle
plates). Loosen this belt tensioner, accessing
the two mounting screws through the clearance
holes in the inner plate. (Note: depending on
the model of Sharp SX you have, there may
be a cable tie through one of the clearance
holes. If the hex wrench will not fit through the
hole and properly seat in the screw, the cable
tie will need to be removed and replaced at the
end of this repair.) The hinge screws fastening
the hinge to the cradle plate also need to be
removed to allow clearance for the pulley to
slide out of the machine.
Hinge
Access
Holes
Tensioner
Access Holes
Figure 3-204. Secondary Ribbon Drive Belt
4. The transfer shaft will now be free to slide.
Move the transfer shaft to the outside of the
machine to remove the DC roller clutch pulley.
There is one nylon washer located on each
side of this pulley. When sliding the transfer
shaft, be sure to catch the pulley and the two
nylon washers as the shaft is withdrawn from
them. Do not misplace these washers, as they
are needed for proper machine operation.
Once the shaft
components, lift the pulley up from the
machine. Remove the belt from the teeth of
the pulley and onto the hub. Rotate the pulley
to free it from the belt.
SX™
Service and Maintenance Manual
PRINTHEAD CRADLE ASSEMBLY
Rear Hinge
Belt Tensioner
is free of the interior
SECTION 3 – COMPONENT REPAIR
Nylon Washers
Figure 3-205. Interior Transfer Shaft Components
Note: Cradle Cover Removed for Clarity
5. The DC roller clutch now needs to be pressed
out of the pulley. Once removed, insert the
new clutch into the pulley, oriented such that
the writing on the end of the bearing is visible
when looking into the hub side of the pulley.
The roller should be flush with the opposite
(flange) side of the pulley to ensure proper
operation.(As shown in Figure 3-206)
Bearing and
Pulley Flush
Figure 3-206. DC Roller Clutch Orientation
3-82
DC Roller Clutch Pulley
Writing Visible
from This Side
of Pulley
960714-02B © 2007 I2407