Textron Jacobsen LF-1880 - 10 B Failure Analysis

ELECTRICAL SYSTEM
10B-3
SECTION 10B. FAILURE ANALYSIS
GENERAL
The following table lists common problems, probable
causes, and suggested remedies with section refer-
ences to detailed descriptions of remedial procedures.
PROBLEM PROBABLE CAUSE REMEDY
1. Battery charge is low a. Buildup of corrosive acid
across top of battery
b. Terminals are loose
c. Battery cables are frayed
d. Faulty battery
e. Alternator belt not adjusted
f. Voltage regulator defective
g. Ignition switch damaged or
corroded
h. Bad ground
a. Clean and recharge battery
(Section 10D)
b. Tighten terminals and
recharge battery
(Section 10D)
c. Replace cables and recharge
battery (Section 10D)
d. Replace battery
(Section 10D)
e. Adjust belt (Section 3D)
f. Test regulator (Section 10E)
g. Test ignition switch
(Section 10G)
h. Check ground corrosion
2. Battery is not charging a. The alternator belt is not
properly adjusted
b. Faulty alternator
c. Faulty gauge
d. Ignition switch damaged or
corroded
e. Faulty battery
a. Adjust belt (Section 3D)
b. Replace alternator
(Section 10E)
c. Test/replace fuse
(Section 10P)
d. Test ignition switch
(Section 10G)
e. Test battery (Section 10D)
10B