JLG LSS Scissors - Manual (Page 39)

SECTION 5 - SERVICE - (LE, MRT, RTS, ES, RT)
3124288 – JLG Lift – 5-3
5. Confirm Host Control System Warnings and Inter-
locks. Using the vehicle’s keyswitch, select Platform
Mode and power-up. Start the vehicle’s engine (If
equipped) and ensure that all controls are functional
and the Load Sensing System’s Overload Visual and
Audible Warnings are not active. Simulate an Over-
load by unplugging the Shear Pin Load Cell con-
nected to J5 on the LSS Module. The Overload
Visual Warning should flash, and the Audible Warn-
ing (at Platform and Ground) should sound for 5
seconds On, and 2 seconds Off. With the engine
running (If equipped), all platform control should be
prevented. Cycle the Platform EMS to stop the
engine and then power-up again. The Overload
Visual and Audible Warning should continue. Install
the disconnected Shear Pin Load Cell back in J5 on
the LSS Module. The Overload Visual and Audible
Warnings should cease and normal control function
should return. Switch the vehicle’s keyswitch to
Ground Mode and repeat the above procedure. The
Overload Visual Warning at the Ground Controls
should flash, and the Audible Warning (at Platform
and Ground) should sound for 5 seconds On, 2 sec-
onds Off. However, the controls should remain func-
tional when using the engine (if the Host Controls
System’s MACHINE SETUP, LOAD is set to “2=CUT-
OUT PLT”. If set to “3=CUTOUT ALL”, then Ground
Controls will be prevented when using the platform).
Re-fit the Shear Pin Load Cell connector to J5 on the
LSS Module and carefully tighten by hand, and then
with a small pair of locking pliers to seat the O-ring
seal.
6. Confirm Load Sensing System Performance with
Calibrated Weights. Operate the vehicle from
Ground Control and place the platform in the fully
stowed position for safety. Place 120% of the
machines rated load in the center of the platform
and ensure that the overload visual and audible
warnings are active. Reduce the platform load to
100% rated load and ensure that the warnings are
not active. For vehicles with multiple capacities,
evaluate each operating mode with the proper rated
load.