JLG 9MP Service Manual - Manual (Page 41)

SECTION 4 - CONTROL COMPONENTS
3121163 – JLG Lift – 4-11
4.7 BATTERY CHARGER -
SERVICE PROCEDURES
General Information
IMPORTANT
DO NOT ATTEMPT TO DISASSEMBLE THE BATTERY CHARGER IF
MACHINE IS STILL UNDER WARRANTY. OPENING THE BATTERY
CHARGER WHILE THE MACHINE IS UNDER WARRANTY WILL VOID
THE CHARGER WARRANTY. IF UNDER WARRANTY REQUEST A
REPLACEMENT CHARGER FROM THE FACTORY.
ALSO BEFORE REPLACING ANY COMPONENT, USE THE CHARGER
MANUFACTURERS TROUBLESHOOTING GUIDE SHIPPED WITH THE
MACHINE TO CHECK THE INTERNAL AC AND DC CIRCUITS AND
DETERMINE WHICH COMPONENT HAS FAILED. A WIRING DIAGRAM
FOR THIS MODEL DUAL VOLTAGE-SCR CHARGER IS INCLUDED AT
THE END OF THIS SECTION OF THE MANUAL, SEE FIGURE 4-2.
See Section 4.3 of the manual for location and removal
instructions of charger from machine.
The battery charger allows for replacement of the follow-
ing internal components. Consult your Illustrated Parts
Manual for part numbers of these components which are
available from the JLG Parts Department:
• Transformer
• Printed Circuit Board
• Shunt Assembly
• Capacitors
• SCR Rectifier
• AC Circuit Breaker
• DC Circuit Breaker
• AC Voltage Selector Switch
• Battery Discharge Indicator
Replacement and troubleshooting of these components
requires removal of the battery charger from it’s mounting
position on the machine.
General Component Installation Notes
When removing components make note of the wiring con-
nections before disconnecting the wiring between the
components within the charger assembly. Only discon-
nect enough wiring to remove a component.
The battery charger manual supplied with the machine
contains a wiring diagram for the charger as well as Figure
4-2. at the end of this section of the manual.
Charger Cover - Remove/Install
DC Circuit Breaker - Remove/Install
Battery Charger Cover - Remove/Install
1. Charger Cover 2. Cover Screws - Same on Both Sides
50 Amp - DC Circuit Breaker - Remove/Install
1. DC Circuit Breaker 3. Lock Washers/Nuts
2. Cap Screws
1
2
1
2
3