Service Manual Instruction Manual

SECTION 4 - BOOM & PLATFORM
3121171 – JLG Lift – 4-57
4.21 MAIN BOOM TRANSPORT LENGTH SWITCHES
See Figure 4-35., Boom Sensor Locations - Dual Capacity, Length,
& Main Boom Transport and Figure 4-44., Main Boom Transport
Length Switch Wiring
The Transport Length Switches are located on the right side of
the Main Base boom underneath the cover. These switches run
on cams mounted to the upper fly boom to determine if the
main boom is telescoped within or beyond the transport posi-
tion. They also work with the Dual Capacity Switches to deter-
mine the length of the main boom to restrict the main boom
length between the main boom angles of +55° and -45° for the
1000 lb (450 kg) envelope.
Analyzer Readings
The analyzer reading for these switches can be found in the
Diagnostics menu under Transport Data.
In Transport - Switch #1 off cam:
In Transport - Switch #2 on cam:
Out of Transport - Switch #1 on cam: