DETROIT DIESEL 53
7.1
BATTERY-CHARGING GENERATOR ( D.C. .,and A.C.)
The proper selection of a generator which will meet the
The battery-charging circuit consists of a generator
needs of the battery-charging circuit on the particular
(alternator), regulator, battery and the wiring. The
engine is mandatory. This. together with adherence to
battery-charging generator is introduced into the
the recommended maintenance procedures, will reduce
electrical system to provide a source of electrical current
generator troubles to a minimum. Since most generators
for maintaining the storage battery in a charged
adhere to the same basic design. the maintenance.
condition and to supply sufficient current to carry any
removal and installation procedures for all are similar.
other electrical load requirements up to the rated
capacity of the generator.
Generator Maintenance
The alternating current self-rectifying generator
(alternator), Figs. 2 and 3, is especially beneficial on an
1.
Maintain the proper drive belt tension. Replace
engine with extra electrical accessories and one that has
worn or frayed belts. Belts should be replaced as a set
to operate for extended periods at idle speeds. Diodes,
when there is more than one belt on the generator drive.
built into the slip ring end frame, rectify the three phase
A.C. voltage to provide D.C. voltage at the battery
2.
Lubricate the generator bearings as outlined in
terminal of the generator, thereby eliminating the need
the Lubrication and Preventive Maintenance Chart In
for an external rectifier. The alternator is also available
Section 15.1.
in a variety of sizes and types.
Remove Generator
1.
Disconnect all of the leads from the generator
and tag each one to ensure correct re-installation.
2.
Loosen the generator mounting bolts and nuts
and the adjusting strap bolt.
Then, remove the
generator drive belts.
1971 General Motors Corp.
May, 1971
SEC. 7.1 Page 1
