JLG LSS Boom - Manual (Page 23)

SECTION 2 - SERVICE - ENGINE POWERED BOOM LIFTS
3124287 – JLG Lift – 2-1
SECTION 2. SERVICE - ENGINE POWERED BOOM LIFTS
This section is for servicing 400 Series, 450/510 Series,
600A Series, 600S Series, 800A Series, 800S Series,
1250AJP, & 1200/1350 Series Boom Lifts
2.1 DESCRIPTION
The system consists of the LSS Module, four Shear Beam
Load Cells (sensors), Wire Harness, and various brackets
and fasteners. The LSS Module is mounted in the platform
on a bracket beneath the console box (above the rotator).
The Shear Beam Load Cells mount between the platform
and the support structure in such a way that all support
force for the platform is applied through them (for mea-
surement). The four Shear Beam Load Cells plug directly
into the LSS Module. The Wire Harness connects the LSS
Module to the Host Control System.
2.2 INSTALLATION
1. Loosen the Fasteners that secure the Platform to the
Support Structure. Maneuver the platform above a
pair of saw-horses or other adequate supporting
device capable of supporting up to 350lbs.(160 kg).
Position the platform to a comfortable height.
Loosen but do not remove the four 1/2 inch Shank
(3/4 inch Head) Hex Bolts that secure the platform to
the support.
2. Separate the Platform and Support Structure. Gen-
tly lower the platform onto the saw-horses or sup-
porting device (using the Auxiliary Power Unit from
Ground Control). Remove the fasteners that secure
the platform to the support structure and discard the
fasteners (new fasteners must be used for installa-
tion since all are torqued to specification).
3. Mount the Shear Beam Load Cells to the Support
Structure. Carefully examine the detail on Figure 2-
2., Load Sensing System Installation (Sheet 2 of 2)
that shows how the components are placed onto the
platform support structure. Place one of the Shear
Beam Load Cells on top of the support structure
with the Orientation Arrow pointing downward
(groove near the single mounting hole upward).