Install Brush Assembly
Insert
brush holder into grooves
in
hub of rear housing. Place D + strap (or male terminal where
applicable)
on
stud
and
secure brush holder with locknuts (two places). Secure other end of D +
strap.
Install Rear Cover
Be
sure felt gasket
is
in
place (see illustration below). Position rear cover
on
rear housing and
secure with two screws.
INSTALLING
REAR
COVER
ALTERNATOR
PERFORMANCE
TESTS
FELT
GASKET
The following tests will determine the current producing capability of the repaired alternator. Mount
the
alternator
in
a test fixture capable of providing 5000 alternator
RPM
Select required battery
voltage and circuit polarity.
A.
For
remote regulator model, connect fixture circuit leads and instruments
to
the alternator
terminals
as
shown
in
Diagram A
on
page
100.
Place field rheostat
in
maximum resistance
position.
Turn
drive motor
on,
adjust
to
obtain 5000 alternator
RPM.
Slowly reduce field rheostat resistance,
alternator should develop a charge. Continue
to
reduce resistance until alternator reaches
rated
current output
in
amperes. CAUTION: Limit output voltage
to
15V
maximum.
DO
NOT
operate the
alternator for more than a few minutes
in
the manner, due
to
the lack of voltage control. If the
alternator will deliver its rated output, terminate the test.
B.
For
integral regulator model, connect fixture leads and instruments
to
alternator terminals
as
shown
in
Diagram B
on
page
100.
The Carbon pile or resistive load bank and ammeter must
be
capable of handling the alternator
rated
output alternaotr
RPM.
CAUTION: Make sure connections are well secured and
tight
to
avoid possible damage
to
instrument, alternaotr
or
wiring due
to
short
circuits.
Starting with carbon
pile off, slowly increase load while observing ammeter and maintaining 5000
RPM.
Increase load until a minimum output voltage of approximately
13.7
volts
is
obtained.
Record the output current
at
this point
and
refer
to
the chart for minimum acceptable ratings.
99
To Next Page
Loading...
Need help?
General
