motor 2 Solenoid mounting bolt 5 Screw 3 Starting
(6)
To check the voltage regulator
motor mounting bolt does not enter the starting
operating voltage, connect the generator
motor or contact the electrical parts.
regulator and generator in a
circuit
as shown in figure 27. Operate the engine at
1,425 rpm. Operating voltage must be as
follows:
Oemperature F.
T
50
80
110
140
perating voltage (~5
27.6
27.3
volts)
28.0
27.85
(7)
If the voltage regulator fails to perate
o
within the required range, adjust the setting of
the voltage regulator adjusting nut (12, fig. 26)
until the required range is attained.
(8) W ith the generator regulator connected as
shown in figure 26, using the carbon pile
rheostat, check the operating amperage
of the current regulator. It should operate
at 17 to 19 amperes. If it fails to operate
within the required range, adjust the
setting of the current regulator adjusting
nut (14, fig. 26) until the reuired range is
q
attained.
(9) If the adjustments cannot be made,
Figure 88. Starting motor and solenoid installation.
replace the generator regulator.
b Replacement
(2)
Inspect the assembled starting motor and
(1) Disconnect the two electrical connectors
solenoid for cracks, breaks, broken or
worn gear teeth, or other damage.
(2) Remove the four screws and lockwashers
Replace or refer to higher authority if
that secure the generator regulator to the
damaged.
flywheel end of the engine housing;
c Installation. Installation of the starting motor is
remove the generator regulator.
the reverse of the removal procedure described in a
(3) Position a replacement regulator on the
above.
back of the instrument panel; secure with
the four screws and lockwashers.
d Testing
(4) Secure the two electrical connectors to
(1) Remove the starting motor and solenoid
the generator regulator.
as directed in a above.
69. Starting Motor
(2) Connect the starting motor and solenoid
a Removal fig. 28).
in the test circuit shown in figure 28.
Adjust the starting motor to 3,650 rpm by
(1) Tag and remove leads from the starter
adjusting the variable resistance. With the
solenoid.
starting motor operating at 3,650 rpm,
(2) Remove the three mounting bolts (3) and
current draw must not exceed 72.5
lockwashers that secure the starting motor
amperes and voltage draw must not
(4) to the flywheel housing; remove the
exceed 23.5 volts. If current or voltage
assembled starting motor and solenoid
draw is not within limit or the motor will
(1).
not turn at 3,650 rpm, replace the motor
b. . Cleaning and Inspection.
or the solenoid.
(1) Clean the outside of the starting motor with a cloth
(3) Install the starting m tor and solenoid as
o
dampened with cleaning solent; wipe dry. Take
v
directed in c above.
care that solvent 38 1 Starter solenoid 4 Starting
TAGO 6368-A
38