contact bracket to the cutout relay
and raise or lower the cutout relay
contact bracket until the specified
air gap is obtained. Secure the
adjustment by tightening the two
screws.
(g) Push down on the voltage regulator
armature ((2), fig. 32) until the
voltage regulator contact point
barely touches the air gap adjusting
screw.
Measure the air gap
between the coil core and the
armature of the voltage regulator.
Do not measure between the core
residual brass pin and the armature.
Adjust the air gap adjusting screw to
obtain the correct voltage regulator
air gap of 0.084 inch.
(h) Adjust the current regulator air gap
to 0.115 inch in the same manner
as the voltage regulator unit
adjustment described in (g) above.
(2) Electrical adjustments. Install set of test
adapters.
Figure 30. Battery charging receptacle, removal and
installation.
Note.
Refer to (3), figure 32 and polarize the generator.
contact points are barely touching.
(a) Cutout relay closing voltage, With
Measure the air gap between the
voltmeter connected as shown on
coil core and armature. The correct
(4), figure 32, start the engine and
air gap for the cutout relay is 0.048
slowly increase speed until the
inch.
cutout relay contact points close.
Note.
Observe voltage reading at which
Do not measure the cutout relay air
this occurs. It should be between
25 and 27 volts. If adjustment is
gap between the brass residual pin
necessary,
turn
cutout
relay
in the coil and the armature.
adjusting screw clockwise to
increase or counterclockwise to
(d) Should the cutout relay air gap not
decrease the closing voltage. Set
be as specified, bend the armature
closing voltage at 26 volts.
stop up or down to obtain the proper
(b) Voltage regulator opening voltage,
clearance.
With voltmeter connected as shown
Caution:
on (5), figure 32, increase rpm to
Make certain the cutout relay contact
operating speed. Observe reading
bracket is in proper position to allow
on voltmeter.
It should read
both contact points to close
between 27.5 and 29.5 volts. If
simultaneously.
adjustment is necessary, turn the
(e) Measure the clearance between the
voltage regulator adjusting screw
contact points. The proper cutout
clockwise
to
increase
and
relay point opening is 0.035 inch.
counterclockwise to decrease. Set
voltage at 28.5 volts.
(f) If the cutout relay point opening is
not as specified, loosen the two
screws securing the cutout relay
AGO 8157A
49
