Oshkosh JLG 1500SJ, Service And Maintenance Manual

Page: 553 / 706

SECTION 6 - JLG CONTROL SYSTEM
3121262 – JLG Lift – 6-37
6.6 CONTROL SYSTEM BOOM SENSORS
NOTE: Note: The machine is defined as being in transport mode if:
Axles are retracted.
Main boom lift is below elevation angle.
Main boom telescope is fully retracted.
Jib boom telescope is fully retracted.
Jib boom locked inline with the main boom via the jib lock
pin.
Turntable swung so that the main boom is between the
rear wheels.
The Boom Control System (BCS) uses a number of sensors to
measure the position of the boom. The sensors used to deter-
mine main boom and jib boom position are shown in Figure 6-
18., Control System Boom Sensors.
Sensor #1 - Moment Pin
The Main Lift Cylinder is attached to the Turntable with a sin-
gle axis load cell pin which measures load on the boom.
Sensor #2 - Main Boom Angle Sensors
These sensors measure Main Boom angle in reference to grav-
ity. They are located in the rear of the Base Boom and mounted
such that they generate opposing signals with respect to
boom movement.
MOMENT
PIN