Fig. 4-112 Copy Selector Reassembly - Canon NP-70 Service Manual

NP-70
4-97
4.15-4 REPAIR~SERVICING ACTIONS
As the Copy Selector Subassembly requires a great deal of time to repair, servicing in the
customers' office should be limited to removal and replacement. All repair actions requiring
disassembly should be performed in the Service Center.
1) COPY SELECTOR REASSEMBLY
When reassembling the selector after repairing, be careful to observe the following (reference—
Fig. 4-112):
a) Attach the shaft guide to the Drive
Plate Unit with two retaining screws
and insert the start shaft, with the
shaft stud in the groove of the shaft
guide.
b) Place the torsion spring over the shaft
and attach one end of the spring
through the slot in the shaft guide.
c) Place the ratchet wheel on the shaft
and, with sharp pointed tweezers, hook
the spring end on the ratchet wheel.
d) Insert the shaft sleeve over the shaft
with the collar flush to the ratchet
wheel.
e) Note the position of the ratchet wheel
and rotate it clockwise 2-1/2 turns to
give the torsion spring the proper
counterclockwise torque.
Mounting
Plate
Shaft
Sleeve
Ratchet
Wheel
Torsion
Spring
Start
Shaft
Shaft Guide
Fig. 4-112 Copy Selector Reassembly
© CANON INC. Second Printing-June, 1974