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[36] Adjusting the Tension of the PZ
Punch Shift Timing Belt
1.
Tools
• Screwdriver (Phillips)
• Tension gauge or spring balance
2.
Adjustment Method
The tension of the timing belt
must be measured at the root
Screw
of the punch shift motor shaft.
Punch shift
timing belt
Step
1
Remove the PZ from the main body.
2
Remove the four screws to remove the
rear cover.
3
Loosen the two screws holding the punch
shift motor (M5).
4
Use a tension gauge or a spring balance
to measure the tension at the A point.
When a specification value is observed,
tighten the screws.
Spec value: A = 4 ± 0.4kg
Note: The tension must be measured at
the root of the motor shaft. Other-
wise, the measuring operation may
cause the shaft to bend.
5
Reinstall the rear cover using four screws.
MODEL
7075
SERVICE HANDBOOK
Screw
Punch shift motor (M5)
Operation
MANUAL
REVISED EDITION
[37] Adjusting the PZ 1st Folding Skew
1.
Tools
• Screwdriver (Phillips)
2.
Adjustment Method
Ticks
Left
Screws
Right
Step
1
Set A3 paper into the tray.
2
Set the original chart and make a copy of
it. Check the copy for a possible folding
skew.
Spec range: within 0.5mm
0.5mm or less
Skew pattern A
If the folding skew is outside the spec
range, adjust according to the instructions
described in the following steps.
3
Open the front door of the FNS.
DATE
1 - 147
Sep. 2001
OTHER ADJUSTMENT
Screw
Supporting point
Screw
1st stopper assembly
Operation
1st folding
0.5mm or less
Skew pattern B
PAGE
METHOD
1-147
REPLACEMENT
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