Labrie ALLEY -GATOR RIGHT-HAND, Maintenance Manual

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50 Maintenance
Limit Switch Adjustment
The following is the general procedure for adjusting all the limit switches used on the A
LLEY
-G
ATOR
R
IGHT
-H
AND
TM
, except for the mid-height limit switch, which calls for a different method of
adjustment.
N
OTE
:
All limit switches MUST be working at all times. Otherwise, the operator may not be aware that
the arm is not fully retracted or that the grabber is open or closed. This may cause an accident,
injuries or property damages.
To adjust a limit switch:
1.
Loosen limit switch nut.
2.
Move the lever arm to the approximate position where the switch is to be triggered.
3.
Tighten nut.
4.
To fine tune the adjustment, loosen nut slightly.
5.
With a flathead screwdriver, turn the adjusting screw located at the center of the nut until a click
is heard.
6.
Tighten the nut.
7.
Test the operation.
8.
If necessary, repeat steps 1 through 7.
Proximity Switch Adjustment
Proximity switches utilize an electronic sensor to detect when solid material is within a certain
distance of the switch face. The switches are constructed of stainless steel with a detachable wire
connector.
The proximity switches used to influence the operational controls of the arm and pendulum are
known as
shielded proximity switches . These switches will only detect objects in front of the switch,
and will not detect objects beside the switch. When the proximity switch detects a solid object within
the range of the switch a small light illuminates at the connector end.