Plotter Adjustment 75
11. Locate the centerline of the frame. Slide the plotter drum and the X
axis gear toward the centerline of the frame and each other. Tighten
the X axis drum clamp.
12. Slowly rotate the X axis gear two revolutions. Then rotate the X
axis gear a quarter turn in the opposite direction.
13. Gently try to push the drum from end to end. If the adjustment is
correct, the play will be between .003 and .005 inch.
14. Spin the drum. If the adjustment is correct, the drum will spin
without binding.
15. If the tests in either step 13 or 14 fail, repeat steps 10 through 13
until the drum spins without binding and there is no end play.
Note: You may need to repeat this procedure several times to obtain
correct adjustment.
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