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49
TROUBLE SHOOTING
LIMIT SWITCHES
If a machine suddenly stops in mid cycle check the limit switches, a worn
limit switch arm or a misadjusted limit switch is more than likely the
cause. Depending on the model of limit switch you receive the amount of
“pre-travel” (amount of movement from the arms resting position) is either
5 or 20 degrees before the limit switch actuates (Clicks). If the arm is
moved to the full extents of its travel and you do not here the limit switch
“Click”, the switch needs to be adjusted here is how you adjust it follow
the following drawings.
Chapter
4
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