Service Procedures
•
Feeder Modules
Watkiss DigiVAC Service Manual - Issue 2 - 29/11/04
23
Note:
When refitting the feeder head, ensure the screws are fully tightened and
that the screw socket is not damaged in any way. These are in the paper path
and so any burr or a raised screw will mark the paper or cause the paper to
catch.
3.5.2 Feed Band Removal
1. Remove the feeder head assembly (see Section 3.5.1).
Figure 3:9 Feed Head
2. Slide the L/H manifold bearing block along the shafts.
3. Ease the manifold belt off the drive sprockets by rolling the belt between
your finger and thumb and pushing it off the sprocket that does not have a
retaining flange.
Figure 3:10 Feed Band Removal
4. The feed band is held across the central manifold under tension by two
metal shafts, push the shorter shaft away from the moulding then roll it
upwards to release the tension in the belt. The belt can now be withdrawn
from the assembly.
3.5.3 Replacing a Feeder Clutch
If an operator reports poor feeding with excessive Jam errors, it may be caused
by ‘feeder creep’. Feeder creep occurs when there is excessive drag on the
clutch shaft, which in turn, causes the feeder band to rotate when the clutch is
not engaged. This can be caused by
• a faulty feeder clutch
• a dry or dirty feeder clutch pulley bearing (see Section 3.5.4).
Note: Feeder creep may also be caused by incorrect feeder belt tension (see
Section 3.5.12).
PARTS REQUIRED
TOOLS REQUIRED
914-351 Feed Band, Perforated
None
Manifold Bearing Block
Manifold Belt
Perforated Feed
Band
