Figure 3-68. Battery and Battery Box removal and installation (nonwinterized units).
nuts from generator mounting bracket, then lift
3-84. Alternator and Belt (For Engines Model D333TA ).
generator from bracket.
(4) Install in reverse order.
designed to give long and satisfactory service with a
c Cleaning, Inspection, and Repair.
minimum amount of maintenance, but the following
(1) Clean exterior of generator housing
precautions must be observed.
with a rag dampened in an approved cleaning solvent
Caution:
then dry thoroughly. Blow dust from armature brush
Do not attempt to polarize the alternator.
area with low pressure compressed air.
If an accidental connection were made
(2) Inspect mounting hardware for worn or
between the battery terminal and either of
stripped threads, inspect belt for excessive wear, frayed,
the terminals "F1" or "F2" on the
or deteriorating condition. Visually inspect housing, end
alternator the transistors in voltage
bells, or pulley for breaks or cracks. Inspect brushes for
regulator will be damaged.
wear beyond 50 percent of original length.
Caution:
(3) Repair by replacing defective mounting
Do not make, or break, any alternator
hardware, belt, or worn brushes. Replace a defective
connections while alternator is operating
generator.
This would damage the voltage regulator.
d.
Brush Replacement. Wcrn brushes will be
Caution:
replaced in a manner similar to that described for starter
Never operate alternator without battery
motor brushes (para 3-87).
being connected in circuit.
e.
Belt
Removal,
Installation,
and
Caution:
Adjustment.
When charging batteries from an external
(1) Removal and installation. Remove belt
source of power, be sure battery is
as described in b (2) above. Install in reverse order.
disconnected
from
circuit
before
(2) Adjustment. Adjust generator belt as
beginning charging operation to prevent
shown on figure 3-22.
damage to alternator rectifying diodes.
Caution:
Before using booster cables to start the
engine, be sure of the lead polarity and
connect the batteries correctly. Incorrect
connection, even for an instant, will
destroy alternator's rectifying diodes.
3-82
