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11.
Assure that the take-up and feed shafts lock collars are flush against the left
shaft support blocks. These collars lock the shafts in position so they do not
move side to side, which may induce frame alignment problems during plotting
or paper feeding. The right end of the shafts should be butted against the right
end plate. For a more detailed description. (See pages 22 to 25 of your Users
Guide to Operations).
12.
Reposition the outside chart wheels together at an equal distance from the left
and right edges of the paper (at least 2").
wheels in different locations until you get the desired tracking.
wheels should be pushed against the bronze square shaft support brackets.
13.
Inspect the chart wheels for worn or delaminated rubber and that they spin
freely.
14.
Verify the tension springs are still attached to the back of the chart wheel arms
and have not been stretched out, which would change the pressure of the wheel
and cause paper slippage.
15.
Inspect the grit shaft for excessive grit wear of paper buildup where the wheels
grip the paper. Clean the grit shaft using a soft bristle nylon brush.
16.
Remove any paper or ink build up on the chart wheels, which could cause the
wheels to slip on the paper.
17.
Ensure that the dancer bars move freely. A jammed dancer bar ads drag or
friction to one side of the paper loop, and may cause frame alignment problems.
18.
Check all set screws on the grit shaft (5/64" hex), x and y-axis transmission
assemblies (5/64" and 1/8" hex). A loose set screw can induce frame alignment
problems due to gear or shaft slippage.
Technical Specifications are:
1.
Frame to Frame Alignment: within 1.27mm (0.050").
space, if any, between frames.
2.
Intra-frame Repeatability: within 0.51mm (0.020"). This is the accuracy if you
were to draw on top of the same design.
You may have to position the chart
This is the distance or
The center
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