Starter/Generator
Testing of starter/generator field and armature windings
is difficult with the starter/generator still mounted in the
Workman. Follow the procedures for Starter Generator
DF
&
Voltage Regulator Component Testing prior to remov-
F1
A2
ing the starter generator for further testing and repairs.
Starter generator resistance tests are as follows:
NOTE: Prior to taking small resistance readings with a
digital multimeter, short the meter test leads together.
The meter will display a small resistance value (usually
F2
0.5
ohms or less). This resistance is due to the internal
A1
resistance of the meter and test leads. Subtract this val-
ue from the measured value of the component you are
testing.
1
Figure 16
1.
ator terminals DF and F1 (field). The meter reading
should be 5.5 to 5.9 Ohms.
Measure resistance (Ohms) between starter gener-
1.
Starter/Generator end cover view
2.
ator terminals A1 and A2 (armature). The meter reading
should be under 1 Ohm.
Measure resistance (Ohms) between starter gener-
3.
and ground. The meter reading should be infinite.
Measure resistance between each terminal (Fig. 16)
4.
Starter/generator disassembly and repair will be
needed if readings are incorrect (see Starter/Generator
Service in the Service and Repairs section of this chap-
ter).
Electrical System
Page 6 -- 14
Workman MD/MDX
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