Check circuit breaker 13P13 fuses. Replace fuses if bad as given in paragraph 4-15.3. If fuses are good, check
connections and continuity of cable 13P13C. Tighten loose connections or repair or replace bad cables.
Check Vdc output voltage from charger. If output voltage is not obtained, troubleshoot charger as given in the
manufacturer's service manual in Appendix B. If troubleshooting does not eliminate the problem, replace
charger as given in paragraph 4-15.4.
Fuses. Replace fuses as follows:
Open battery charger by loosening screw on right side of door.
There are 2 fuses on circuit board: a 35A dc fuse on left and an 18A ac fuse on right.
Unscrew blown fuse(s) and replace.
Close door and tighten screw on right side of door
Diodes. Troubleshoot and replace silicone diodes as given on page 8 of the manufacturer's service manual in
Tag and disconnect cables 13P13C and 13P13C£.
Remove mounting hardware and remove charger.
Install battery charger and secure with mounting hardware
Operate as given in the INSTALLATION paragraph on page 11 in the manufacturer's service manual in
Make sure battery charger Is not operating by securing circuit breaker 13P13 on power panel
3. Redtag circuit breaker with "WARNING DO NOT ACTIVATE. REPAIRS BEING MADE."
4-16.1 Cleaning and Inspection
Wipe clean exterior and interior of battery box and batteries with clean cloth.
Visually inspect for corrosion, loose connections, or darnage. Clean corrosion and tighten loose connections.
Touch up paint according to TB 43-0144. Do not paint threads or labels.
With battery charger off, check charge on battery. If charge is not between 25 and 28 Vdc, replace batteries if
battery charger is operating normally. If charge is between 25 and 28 Vdc, go to step b.
Check battery charger as given in paragraph 4-15.