Service Manual

SECTION 6 - TROUBLESHOOTING
6-32 – JLG Lift – 3121228
Code 38 - Battery Voltage Low - Warning Level 2 - Two (2) LED/LCDs lit
To maximize battery life, it is recommended that the factory supplied batteries be charged continuously for a minimum of 4
hours or until 8 bars are lit on the ground station LCD Display before operating the machine. When drained to Warning Level
2, batteries must be charged until 8 bars are lit on the ground station LCD display to clear the fault code. Failure to do so,
will result in a fault code 39.
Code 39 - Battery Voltage Low - Warning Level 3 - One (1) LED/LCDs lit
To maximize battery life, it is recommended that the factory supplied batteries be charged continuously for a minimum of 4
hours or until 8 bars are lit on the ground station LCD Display before operating the machine. When drained to Warning Level
1, batteries must be charged until 8 bars are lit on the ground station LCD display to clear the fault code.
Code 40 - RESERVED
Codes 41 thru 46 - RESERVED
Codes (100 - 199) Ground Control Module - Fault Condition
Check For These Obvious Conditions First:
• That all battery and harness connectors secure and undamaged on Ground Control Module.
• Batteries have sufficient charge.
• Confirm that the static ground strap attached under base frame is secure and undamaged.
Table 6-34. Codes (100 - 199) Ground Control Module - Fault Condition
STEP ACTION SPEC YES NO
1. Recycle machine power 5 times allowing a 10 second interval between
each power recycle. Does fault clear?
—DoneGo to Step 2
2. Which code number is displaying?
Code 103 Go to Step 3 Replace
Ground Control
Module
Code 119 Go to Step 5
3. Confirm that both installed batteries are 12 Volt DC.
12V DC Go to Step 4 Replace with proper
Batteries
4. Check battery voltage while charger is operating. Is voltage within specifi-
cation?
Maximum of
31 Volts DC
Replace
Ground Control
Module
Repair or Replace
Battery Charger