JLG 1500SJ Service Manual - Manual (Page 493)

SECTION 6 - JLG CONTROL SYSTEM
3121262 – JLG Lift – 6-41
Sensor #10 - Dual Capacity / Jib Transport
Length Switches
These switches are located on the Jib Base Boom and are
used to measure transport position and 1000# length
limit. These are proximity switches mounted in a manner
to generate opposing signals. Both Normally Open and
Normally Closed contacts from both sensors are wired
into the control system.
Sensor #11 - Platform Level Cylinder Angle
Sensor
This sensor is used to measure Platform angle in relation-
ship to the Jib. A linear position sensor is located inside
the Platform Level cylinder to measure cylinder stroke and
be translated into Platform angle. This sensor is used for
velocity control only.
Sensor #12 - Platform Level Sensors
These sensors are located on the Platform Support and
are used to measure platform angle in relationship to
gravity. They are mounted in a manner to generate oppos-
ing signals.
Sensor #13 - Rotary Turntable Angle Sensor
This sensor will be mounted to the commutator and is
used to measure the turntable angle.