4 — MAINTENANCE
4-11
4-4 ELECTRICAL SYSTEM
Regular maintenance is necessary to keep the electrical system in proper working order.
Check daily all electrical wires for cuts, broken wires, potential short circuits, and any
other damage.
Battery Care and Charging
The electric system is designed to provide power for a normal work shift. However, the
charge life of the battery pack depends on machine usage. Plan your work to prevent un-
necessary use of electrical power.
Since the power source for the machine is a battery pack, proper battery care is impor-
tant. Recharge the batteries after each work shift. When the machine is not being used,
the batteries should be charged at least once a week. Normal battery charging time
should be 10 to 12 hours. If the battery is extremely low, charging time may be as long as
24 hours.
Clean the battery terminals monthly. Remove the cables from the battery posts, clean the
battery posts and cable ends to shiny metal, and replace the cables. Always connect the
insulated cable from the starter solenoid to the most positive post. Lubricate the outside
of the battery post connections with petroleum jelly or grease.
Battery Charging Procedure
1. Connect a heavy-duty extension cord (10AWG, minimum) from a 110V AC,
60 Hz outlet to the battery charger receptacle, Figure 4-9. The extension cord
should be as short as possible to reduce voltage drop.
Figure 4-9. Battery Charger Receptacle
