Tractor Belt Tension Adjustment - TallyGenicom 6600 Series Maintenance Manual

Tractor Belt Tension Adjustment

First line print compression can be reduced by adjusting the tension of the
tractor belts. The procedure below removes the slack that can occur in some
tractors.
IMPORTANT
Only do this procedure when the user reports that the first print line of
forms is compressed and only after adjusting the dynamic paper
tension (page 179). Always adjust both tractors.
1. Prepare the printer for maintenance (page 154).
2. Adjust the dynamic paper tension (page 179).
3. Carefully note the initial position of the adjustment screws. (Figure 18.)
CAUTION
Adjust tractors only ONE detent at a time. Over-tightening a tractor belt
can cause other paper feed problems and result in premature wear in
the tractors.
4. On the inner side of the left tractor, use a Torx T-10 driver to rotate the
5. Load paper, run a print test, and check for first line compression.
6. If compression still occurs, rotate the adjustment screws one more detent
7. If compression is not improved after adjusting the tension by two detents,
8. Return the printer to normal operation (page 155).
Arrow points to LH (left) or
RH (right) tractor.
Left tractor (LH) is shown
here.
adjustment screw one detent to increase tension. On the inner side of the
right tractor, use a Torx T-10 driver to rotate the adjustment screw one
detent to increase tension. (See Figure 18.)
and test again.
return the adjustment screws to the initial positions you noted in step 3.
Figure 18. Tractor Belt Tension Adjustment
Adjustments and Tests
Right Tractor: One Click and Test.
A
Left Tractor: One Click and Test.
A
181