JLG T350 Service Manual - Manual (Page 142)

SECTION 4 - BOOM & PLATFORM
4-10 – JLG Lift – 3121198
4.5 BOOM SENSORS
There are two mechanical sensors that are standard on
the machine which sense the boom state. One is located
on the side of the base boom and senses when the boom
is fully telescoped in. The other sensor, which is mounted
to the side of the upright, senses whether the main boom
is elevated and is activated by a cam on the lift cylinder
bushing.
Boom Elevation Limit Switch
1. Set the limit switch to trip at 3.8° above horizontal
(Main Boom Position).
2. Set the switch to reset at 1° below horizontal (Main
Boom Position).
BOOM
ELEVATION
LIMIT
SWITCH