Barko 830B, Service Manual

Page: 72 / 218

22-2
®
12V ELECTRICAL SYSTEM
CAUTION
!
WARNING
!
The Master Electrical Disconnect Switch...
Ÿ
Should be used to disconnect battery circuit when transporting machine and
whenever false starts or electrical damage need be prevented.
Turn switch to ON to connect battery circuit.
Ÿ
Breaks positive circuit between battery and all points on machine.
Turn switch to OFF to disconnect battery circuit.
The Master Electrical Disconnect Switch (Fig-1) can vary in appearance and is
generally located close to the battery(s) on BARKO Machines.
See WELDING
SAFETY Section in
CH-10 of this manual
before welding on
this machine.
Fig-1
1 ELECTRICAL SYSTEM DESCRIPTION
This machine has 12 Volt electrical system with alternator, negative ground, and (1) 12 Volt
Battery. There are two basic circuits in the electrical system:
Ÿ
Starting circuit (switch, solenoid, battery, and starter).
In addition to the two basic circuits, there is an accessories circuit and operating light circuit(s).
Ÿ
Charging circuit (alternator and battery).
Disconnect battery ground cable before making any repairs to electrical
circuits.
Check for...
Ÿ
Clean and tight battery cables. Be sure all cables are clean and tight. Remove any acid or
corrosion from battery cables with baking soda and water solution. Cover terminals with grease
to prevent corrosion.
2 ELECTRICAL SYSTEM INSPECTION
Ÿ
Proper voltage of battery(s). Charge if necessary.
Ÿ
Proper electrolyte level in battery. Add distilled water if necessary.
Ÿ
Loose wire connections. Be sure all wires are tightly connected.
Ÿ
Proper tension on drive belt for alternator. For drive belt adjustment, see your Cummins Manual
for more information.
Ÿ
Broken or open wires. Replace any wires that are damaged or worn.
3 MASTER ELECTRICAL (BATTERY) DISCONNECT SWITCH
BEFORE WELDING...
Ÿ
unplug the engine ECU and other
electrical components
Ÿ
SEE WELDING SAFETY IN CHAPTER 10
OF THIS MANUAL!
Ÿ
turn disconnect switch to off, disconnect
battery cables
05/31/2019
Updated
SERVICE