Bobcat 741 - Page 128

ELECTRICAL SYSTEM INFORMATION
Description
The loader has a 12 volt, negative ground electrical
system. There are two main circuits.
1. The charging circuit has an alternator (with built-in
regulator) and a battery.
2. The starting circuit has
glow plugs, starter motor and
solenoid for starting the engine.
Optional equipment forthe loader are front and rear lights,
windshield
wiper, horn and back-up alarm.
The electrical system is protected by two fuses installed
in the instrument panel. Fuses protect the electrical
system from an over-load.
TROUBLESHOOTING
Chart
A WARNING
Instructions are necessary before operating or
servicing machine. Read Operation &
Maintenance Manuals, Handbook and signs
(decals) on machine. Follow warnings and
instructions in the manuals when making
repairs,
adjustments or servicing. Check for
correct function after adjustments, repairs or
service. Failure to follow instructions can
cause
injury or death.
W-2003-1289
The following troubleshooting chart is provided for assistance in locating and correcting problems. Many of the
recommended procedures must
be done by authorized Bobcat Service Personnel only.
PROBLEM CAUSE
Battery will not take a charge. 1,2,3,4,5
Alternator will not charge.
1,2,5
Starter will not tum the engine. 2,3,4,6,7,8,9
KEY TO CORRECT THE CAUSE
1. Alternator belt is loose or damaged.
2. Battery connections are dirty
or loose.
3. Battery is damaged.
4. The ground connection is not making a good contact.
5. The alternator is damaged.
6. The engine is locked.
7. The starter is damaged.
8. The wiring or the solenoid is damaged.
9. Check the fuses.
-6-1-
741, 742, 743, 743DS Bobcat Loader
Service Manual