User manual

4
Installation
Turning Adjustment Screw Too Far Counter-Clockwise
• If the adjusting screw is turned too far counter-clockwise (approximately
3-4 turns) the switch will trip and will not stay in a reset position after
depressing the manual reset pushbutton.
• At approximately 11 turns the switch will trip and cannot be reset because
the spring and adjusting rod have dislodged out of position. There is no
mechanical stop position when turning counter clockwise. Repair of the
internal mechanism can be accomplished in the field by removing the
internal switch mechanism from the switch body. The switch mechanism
is held in with three screws. Once removed the adjusting rod and spring
may be put back into operating position.
Turning Adjustment Screw Too Far Clockwise
• The adjusting rod has a nylon stop bushing preventing the rod from be-
ing over turned. Once the adjustment bottoms out, the switch is at or
beyond the maximum setting and may not trip on vibration.
Getting The Adjustment Position Back To Normal
• Once an adjustment screw is out of range and the rod and spring have
not been dislodged the switch may be adjusted back to normal settings.
With the switch cover removed rotate the adjusting rod clockwise until it
bottoms out. Push the right hand side of the trip plate down to reset the
switch. At this point the NORM CLOSED CONTACT is closed. Rotate the
adjusting rod approximately two turns counter-clockwise slowly or until
the trip bar moves up with a click. Then rotate the adjusting rod clockwise
one full turn. If tower start or run position trips the switch then rotate the
adjusting rod clockwise in
1
⁄8 increments until the trip holds in.