JLG LSS Boom - Manual (Page 27)

SECTION 2 - SERVICE - ENGINE POWERED BOOM LIFTS
3124287 – JLG Lift – 2-5
Route the rear sensor wiring through the large open-
ing in the channel. An additional shield is supplied
for the two Rear Shear Beam Load Cells (to cover
the sensor’s cable exit). Mount the cable clamps
inside the channel (3 small clamps per side) to prop-
erly retain the wiring within the channel. During this
step, pull all four Shear Beam Load Cell wires
through the channels toward the LSS Module
mounting location. Excess wire length should not be
allowed to hang below the platform (it will be bun-
dled near the LSS Module).
5. Mount the Platform to the Shear Beam Load Cells.
Carefully maneuver the platform support structure
toward the platform (using the Auxiliary Power Unit
from Ground Control). Make final adjustments by
sliding the platform on the saw-horses or barrels.
Ensure that sensor wiring is not damaged during
this step. Study the Installation Drawing’s detail
regarding how components are placed. From below,
insert the 5/8 inch Shank bolts (15/16” Head) with
washers that mount the Platform to the Shear Beam
Load Cells. Place the spacer bushing on top of the
Shear Beam Load Cells (between the platform and
sensor), with the beveled feature toward the sensor.
Secure the Hex Lock Nut on top of the platform but
do not completely tighten.
6. Torque all Fasteners to Specification. First, ensure
that the platform is resting completely on the plat-
form support structure (adjust using the Auxiliary
Power Unit from Ground Control). Torque the two
1/2 inch Shank (3/4 inch Head) bolts between the
platform support structure and the Shear Beam
Load Cell to 75ft-lbs (105 Nm) (do all four sensors),
ensuring that the access holes in the Load Cell
Guard Brackets for the 5/8 inch Shank bolts remain
aligned. Next, torque the 5/8 inch Shank (15/16 inch
Head) between the platform and Shear Beam Load
Cell to 50 ft-lbs (68 Nm) (do all four sensors).
7. Mount the LSS Module to the Platform. Secure the
LSS Module to the bracket with the hardware
described in the Installation Drawing. Next, mount
the assembly to the platform mid-rail (drill mid-rail if
necessary).