Skyjack SJ30AJE Service Manual page 166

Section 5 – Procedures
Test between LM 10 and battery negative with both upper and lower E stop switches activated.
LM 11 - Negative output on wire 204 through motor controller harness B pin #B6 to relay 204CR for SGE system.
No negative = Alarm and Light activated.
Test for negative at LM11 while SGE is not activated.
LM 12 - Not used.
LM 13 - Encoder B signal from right motor Encoder.
Test for 2.5 volts approximately between negative and LM 13 while driving. Replace encoder if no voltage
found.
LM 14 - Encoder A signal from right motor Encoder.
Test for 2.5 volts approximately between negative and LM 14 while driving. Replace encoder if no voltage
found.
LM 15 - PMU accelerator input. Variable input from wire 70. 10-100% of maximum pump speed. (PWM signal)
Test for varied input at LM 15 while operating from upper controls.
LM 16 - 12 volt input on wire 01. 12 volts= Main PMU disabled and Emergency PMU available.
Test for 12 volts between LM 16 and battery negative while operating Emergency controls.
LM 17 - SGE input- 12 volt input through motor controller harness B pin #B3 on wire 04A from SGE sensor bar.
SGE sensor bar active for less than 1 second= Functions automatically return.
SGE sensor bar active for more than 1 second= Reset is required.
Test between LM 17 and battery negative while pressing sensor bar.
LM 18 - Not used.
LM 19 - 12 volt input through motor controller harness A pin #A18 from platform Load cell on wire 162.
12 volts= within platform capacity. 0 volts= overload.
Test for continuity between LM 19 and battery negative while no load in platform. Refer to Load Sense
troubleshooting in section 5 for additional information.
LM 20 - Base speed 1 input on wire 71. 70% of pump speed.
Test continuity on wire 71 between LM 20 and base terminal block.
LM 21 - Not used.
LM 22 - Thermal sensor input.
Refer to thermal sensor resistance table in section 5 of this manual. Replace if out of range.
LM 23 - Not used.
LM 24 - Not used.
LM 25 - 5 volt signal to left motor Encoder.
Test for 5 volts between negative and LM 25 while driving.
LM 26 - Not used.
LM 27 - CAN L- Low level CAN-BUS voltage I/O.
LM 28 - CAN H- High level CAN-BUS voltage I/O.
LM 29 - 12 volt input from riser down function on wire 30B. (Enable timer- Riser is gravity down No PMU active)
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Base
SJ30AJE, SJ30ARJE