JLG LSS Scissors - Manual (Page 54)

SECTION 6 - SERVICE - (RS)
6-2 – JLG Lift – 3124288
6.3 TESTING AND EVALUATION (RS)
Refer to the troubleshooting section of this manual if the
Load Sensing System fails to meet these guidelines.
1. Park the vehicle on a level surface. The platform
should be fully stowed and level within +/- 0.5
degrees (both directions).
2. Ensure Pressure Transducers work appropriately.
Proceed to the DIAGNOSTICS, LOAD submenu and
ensure that PRES1 and PRES2 are within 10 PSI of 0
with the platform stowed. Engage lift up from the
ground panel and ensure that the PRES1 and
PRES2 readings begin to increase as the machine
elevates.
3. Ensure the Angle Sensor works appropriately. Pro-
ceed to the DIAGNOSTICS, ANGLE submenu and
ensure that ANGLE, ANGLE increases as the
machine elevates and decreases as the machine
descends.
4. Confirm Host Control System Warnings and Inter-
locks and Load Sensing System Performance with
Calibrated Weights. Using the vehicle’s key switch
select ground mode and power-up. Ensure that all
controls are functional and the Load Sensing Sys-
tems Visual and Audible Warnings are not active.
Engage lift up from the Ground Panel until the plat-
form reaches maximum elevation, and then engage
lift down from the Ground Panel until the platform
becomes stowed. Ensure that the Overload Visual
and Audible alarm did not activate at either control
position during this procedure. Ensure that the Load
Sensing System activates with 120% rated load
placed in the center of the platform. With the plat-
form stowed engage lift up with 120% rated load
placed in the center of the platform ensuring that the
Load Sensing System activates within the ranges
listed in the following table. Ensure that the DIAG-
NOSTICS, LOAD, OVERLOADED submenu reads
YES. The Overload Visual Warning should flash at
the selected control position and the Audible Warn-
ing should sound for 5 seconds On and 2 seconds
Off. With the machine On all platform movement
should be prevented. Cycle the Ground Panel Emer-
gency Stop button. The Overload Visual and Audible
Warning should continue. Pull the manual descent
lever until the platform becomes stowed. The Over-
load Visual and Audible Warnings should cease and
all normal control function should return.
Table 6-2. System Activation Height - RS
MACHINE SYSTEM ACTIVATION HEIGHT
1932RS/6RS 4.92 - 8.20 ft. (1.5 - 2.5m)
3248RS/10RS 8.20 - 11.48 ft. (2.5 - 3.5m)