compression tension assembly. Then re-tighten the nut on the adjustment screws. Replace the covers, plug
the cord into the power outlet and turn the main power on.
4.4 Dancer Assembly Adjustments (Roller Shaft)
A roller shaft, holding in position a roll of bags, will rest on the side-plates of the dancer assembly. The
roller shaft must be parallel to the upper and lower guide rollers to allow proper tracking through the center
of the T-1000. If the roller shaft is not parallel, the web of bags may track to the left or right.
Note: The roller shaft should not be out of alignment unless damaged or jolted in shipment.
4.5 Dancer Bar & Brake Strap Adjustment
The dancer assembly maintains proper bag web tension throughout the stop/start feed motion. T-1000.
web tension is required for proper tracking. If the tension is insufficient, the web may track left or right.
Thinner bags require less tension than thick bags. Web tension is created by friction of the brake strap
along with the weight of the dancer bar pulling downward on the web of bags. Friction of the brake is
created by the weight of the bag roll and the spring tension on the brake strap. As the dancer bar raises,
spring tension is decreased and friction is decreased. If the web of bags is slack between the dancer roller
and nip rollers, there is not enough tension on the bags. If the web of bags break prematurely, the tension
is too high.
To correct the web tension, the dancer bar or brake strap spring must be adjusted (Fig. 3-16). To increase
brake strap tension, relocate the spring on the dancer rail, by sliding the block closer to the dancer roller.
to decrease tension with the brake strap move the spring on the dancer bar, slide block back away from the
dancer roller.
The dancer bar pivots on two shoulder bolts which extend from the side-plates. The downward force can
be adjusted by repositioning the pivot point. To increase tension with the pivot position, move the pivot
position away from the dancer roller. To decrease tension, move the pivot position closer to the dancer
roller.
Note: Inspect the dancer bar to ensure that it is parallel to the roller shaft.
4.6 Upper Roller Guides
Two plastic web guides, are located on the upper rear roll of the T-1000 used for
fine
adjustment of
tracking. Once the web is tracking /- 1/8" left to right, the plastic web guides can be used to
further assist tracking. Hold the upper roller in place while turning and sliding the plastic guides close to
the bags without touching the bags.
NOTE: If the bags are not tracking properly, the plastic guides could cause the bag web to turn or fold
over. If this occurs, slide the guides further away from the web and make adjustments to correct tracking
issues.
NOTE: If bags have an air relief hole or hanger hole, shift the bag to the right or left of center to avoid
having the hole pass directly under the perf sensor.
NOTE: Use the web guides for minor adjustment
s
only. Major adjustment of the guides requires
relocation of the bag roll on the bag roll shaft
.
71
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Содержание Advanced Poly-Bagger T-1000-S14
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