50
OPERATOR’S MANUAL
with Maintenance Information
Maintenance
B-14
Test the Up Limit Switch and the
Indoor/outdoor limit switch
We require that this procedure be performed
every 250 hours or quarterly, whichever comes
first.
Maintaining the limit switches is essential to
safe operation and good machine
performance.
Operating the machine with a faulty limit switch
could result in reduced machine performance
and a potentially unsafe operating condition.
Perform these procedures with the machine on
a firm, level surface that is free of obstructions.
1 Turn the key switch to ground control and
turn the Indoor/outdoor switch to outdoor
position raise the platform approximately
1.5 m from the ground.
2 Lift the safety arm, move it to the center of
the scissor arm and rotate the safety arm
away from the machine and let it hang
down.
3 Lower the platform onto the safety arm.
Crushing hazard. Keep hands
clear of the safety arm when lowering the
platform.
4 While raising the platform from the ground
controls, push the arm of the
Indoor/outdoor limit switch towards the
drive end of the machine to activate the
limit switch.
⊙
Result: The platform stops raising. The
machine is functioning properly.
¤
Result: The platform continues to raise.
Adjust or replace the up limit switch.
5 While raising the platform from the ground
controls, push the arm of the up limit
switch towards the drive end of the
machine to activate the limit switch.
⊙
Result: The platform stops raising. The
machine is functioning properly.
¤
Result: The platform continues to raise.
Adjust or replace the up limit switch.
6 Raise the platform and return the safety
arm to the stowed position.
7 Lower the platform to the stowed position.