Trouble Shooting
•
Watkiss DigiVAC Service Manual - Issue 2 - 29/11/04
127
Double feeds are not being detected
The bin sensor is ‘overrange’ due to the
feeding of particularly heavy or opaque
stock. The red light on the bin controls
will flash slowly when the sensor is
overrange
N/A
Detector Position tolerance is set to x2
Coarse ( only)
Set
TOLERANCE
to
x1 NORMAL
in the
ADVANCED
,
DETECTOR POSITION
win-
dow
Double Detection is not selected (Digi-
VAC+ only)
Set
DOUBLE DETECTION
to
ON
in the
ADVANCED
,
DETECTOR POSITION
win-
dow
Sheet is torn during feeding
Paper Separator Plate needs adjusting
Adjust Separator Stop Plate (see Sec-
tion 3.5.8)
Top and/or bottom bin only feeds on
test set
Batch insert is selected
Switch off batch insert
Jamming problems
Late feeding double sheet
Treat as a double feed
Slow feeding sheet
Treat as a miss feed
Miscalibration during the first set
Unlock the machine and then restart so
that the machine recalibrates
Feeder clutch is faulty due to ‘feeder
creep’.
Replace feeder clutch (see Section
3.5.3)
Dry or dirty feeder clutch pulley bearing
Lubricate and clean feeder clutch pulley
bearing (see Section 3.5.4)
Bin feeder drive belts are too tight
Re-set the bin feeder drive belt tensions
(see Section 3.5.12)
Paper jamming in top unit
Top drum conveyor belts are worn or
broken
Replace top drum conveyor belts (see
Section 3.2.1)
Loud tapping noise coming from
machine during operation
Main drive belt needs tensioning
Check that the tension is set to a mini-
mum on the main drive belt (see Sec-
tion 3.6.10)
Paper not being delivered square into
jogger
Rear conveyor belts are worn or broken
Replace rear conveyor belts (see Sec-
tion 3.7.1) and (see Section 3.7.2)
Front conveyor belts are worn or broken Replace front conveyor belts (see Sec-
Not offset stacking
X-Jogger is not plugged into the collator Connect power and data cables
Oscillate is not selected on control panel Select
OSCILLATE
or
?
on the control
panel
REPORTED FAULT
ACTUAL FAULT
SOLUTION
