Load Sensing System - Ce; Green Led On Load Sense/Dual Load Zone Module Is Not On; Load Sense Indicates Overload Or Overload Warning With Platform Empty Or Below Weight - Skyjack SJ82 T Service Manual

Section 4 – Troubleshooting Information

4.4 Load Sensing System - CE

4.4-1 Green LED on Load Sense/Dual Load Zone Module is not on

1. Loose or broken wires #9 and #02 at base
terminal block to load sense/dual load zone
module white connector J4 pins #8 and #1
4.4-2 Load Sense indicates overload or overload warning with platform empty or below
weight
1. Load cell has lost its calibration.
2. Load cell circuit not operating.
Put volt meter across the two 161
blocks to measure voltage across
the 1 ohm resistor.
Empty platform = 8.7 - 9.2 mV (0.0087 V - 0.0092 V)
500 lbs (227 kg) = 15.9 - 16.4 mV (0.0159 V - 0.0164 V)
748 lbs (339 kg) = 19.6 - 20.1 mV (0.0196 V - 0.0201 V)
229040ABA
158
Check for connections. Check for voltage (12V).
Refer to calibration procedure for recalibration of
load cell.
Check Voltage across 1Ω (ohm) resistors 161 and
162 in base control console.
Voltage across 162 resistor should
match voltage across 161.
Load Sensing System - CE
SJ82 T, SJ86 T