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TROUBLESHOOTING

SYMPTOM

9. Inconsistent stopping points.

10. Screen does not stop going up or

down.

Printed in U.S.A.

CAUSE

(a) Limit switch travel plate not mov-

ing.

(b) Excessive end play in lead screw

of limit switch assembly.

(a) Limit switch assembly paddle

damaged or is out of place.

SOLUTION

(a) Tighten set screws located on

nylon gears (drives limit switch).

(b) Tighten nut between adjusting

knobs. Tighten lead screw of limit

switch.

(a) Remove and check limit switch

assembly. Repair or replace as

necessary.

46490 Rev. 9/09