5
PRIOR TO TROUBLESHOOTING PERFORM BATTERY VOLTAGE TEST
IF OPEN CIRCUIT BATTERY VOLTAGE IS LESS THAN 12.5V (80%) RECHARGE BATTERIES BEFORE PROCEDING
ALL TESTS ARE PERFORMED WITH ENGINE OFF AND TRAILER DISCONNECTED FROM TRACTORS
• MAKE SURE MASTER DISCONNECT SWITCH ON RIGHT SIDE OF BATTERY BOX IS ON
• REMOVE RUBBER CIRCUIT BOARD COVER FROM INSIDE OF PUMP BOX (LEFT SIDE WALL) AND MAKE SURE TO CHECK THE STATUS CODE
NUMBER IN THE LOWER LEFT CORNER OF THE CIRCUIT BOARD. VERIFY CODE 1 AND FLASHING GREEN LIGHT IN LOWER RIGHT CORNER OF
BOARD BEFORE PROCEDING.
• SET MULTIMETER TO DC VOLTS AND CONNECT NEGATIVE LEAD TO EITHER GROUND WIRE AT J2 (Y/G OR BLK)
• CONNECT POSITIVE LEAD TO #27 PIN ON J1, THEN #2 ON J1 BOTH MUST READ BATTERY VOLTAGE
• RAISE THE PLATFORM FULL UP WHILE MONITORING VOLTAGE. IF IT DROPS BELOW 10 AT ANY POINT FIND THE REASON PRIOR TO
PROCEDING. CHECK VOLTAGE AT J-1 #2 AND J-1#27
• FOLD THE PLATFORM AND HOLD THE CENTER AND UP SWITCHES FOR 10 SECONDS, VOLTAGE SHOULD NOT DROP BELOW 10v
NOTE: #27 AND #2 CONNECTIONS ON J1 TAKE POWER FROM THE PRIMARY MOTOR SOLENOID AND IS CONTROLLED BY THE SWITCHED SIDE
OF THE MASTER DISCONNECT SWITCH (ON RIGHT WALL OF BATTERY BOX) THROUGH A 15 AMP INLINE FUSE. THE J-1 #27 TERMINAL POWERS
THE PROCESSOR IN THE BOARD AND THE J-1 #2 TERMINAL PROVIDES WORKING POWER FOR J11 PULG WHERE THAT POWER IS SWITCHED TO
#4 TERMINAL FOR ALL BOARD OUTPUTS. BOTH MUST HAVE 12.5V OR MORE FOR PROPER LIFT GATE FUNCTION.
• ATTACH VOLT METER NEGATIVE TO MOTOR NEGATIVE POST
• ATTACH VOLTMETER POSITIVE TO MOTOR POSITVE POST
• WITH PLATFORM FULL UP AND FOLDED HOLD CENTER AND UP BUTTONS TO DEAD HEAD FOR 10 SECONDS
NOTE: ON DUAL PUMP/MOTOR UNITS ATTACH VOLTMETER TO EITHER MOTOR AND INSURE BOTH MOTORS ARE OPERATING SHOULD NOT
DROP BELOW 10V AFTER 10 SECONDS IF VOLTAGE IS LESS THAN 8V CHECK THE FOLLOWING TO DETERMINE IF IT’S CAUSED BY *POOR WIRING
*FAILED BATTERIES, OR *FAILED MOTORS:
• CHECK ALL CONNECTIONS BETWEEN BATTERIES AND MOTORS POWER AND GROUND CONNECTIONS
• ATTACH NEGATIVE VOLTMETER LEAD TO NEGATIVE POST OF BATTERY AND POSITIVE LEAD TO POSITIVE POST OF BATTERY. REPEAT 10/10
VOLT TEST IF READING IS LOW (8V OR LESS) LOAD TEST INDIVIDUAL BATTERIES. IF READING IS GOOD (10V OR MORE) PROCEDE TO NEXT
STEP
• CHECK VOLTAGE AT EACH MOTOR WITH THE OPPOSITE MOTOR DISCONNECTED. IF ONE MOTOR INDICATES LOW VOLTAGE PERFORM AN
AMP DRAW TEST ON THAT MOTOR AND REPLACE MOTOR OR MOTORS IF NECESSARY
10-10 VOLTAGE TEST
NOTE: ANY VOLTAGE BELOW 9 VOLTS WILL TRIGGER FAULT CODE 2 (LOW VOLTAGE) ON CIRCUIT BOARD
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