Defective Alternator

ELECTRICAL

Figure 29.

switch to regulator No. 2 terminal is open, or the field

Figure 30.

relay is defective, and must be checked.

CAUTION: Load the battery with a carbon rheostat

Defective Alternator: To determine if the

or accessories to prevent high voltage. Do not

alternator is operating properly, proceed as follows:

allow the charging voltage to exceed the

recommended voltage setting of the regulator.

a. Connect an ammeter in the circuit at the "BAT"

terminal of the alternator and a voltmeter from the

5. Low Voltage Regulator Setting: If no circuit

"BAT" terminal to ground.

defects are found, yet the battery remains

undercharged, the cause most likely is a low voltage

b. Make connections to the adapter as shown in

regulator setting.

Figure 30.

C. OVERCHARGED BATTERY

c. Turn on switch, operate engine at speed and

check for rated output. If alternator does not

NOTE: An overcharged battery, as

provide rated output, it should be checked.

evidenced by excessive water usage,

can be caused by:

B-73