Portable Generator Repair G 2.5A
wc_tx000207gb.fm 39
5.13 Stator Winding Test
See Graphic:wc_gr000938
The stator includes the main winding and the auxiliary winding.
To check stator windings:
5.13.1 Unplug stator connector at control box.
5.13.2 Disconnect ground wire.
5.13.3 Set ohmmeter to lowest scale. Place meter leads on connector
terminals (b) and record resistance values.
Check resistance values with those listed on table.
A high or low reading indicates an open or shorted winding and the
stator must be replaced.
5.13.4 Test for grounded windings by checking for continuity between winding
and metal frame.
If continuity exists, winding is grounded and stator assembly must be
replaced.
Note:
Make sure stator is completely disconnected from generator.
The main winding is intentionally grounded to the generator to form a
neutral and will give a false reading.
5.13.5 Check for continuity between auxiliary winding (a) and main winding. If
continuity exists, the auxiliary winding has a short to the main winding
and stator must be replaced.
Resistance Values (Ohms)
Resistance values are very small and require a good quality meter with
the ability to be zeroed out. Using a poor quality meter may not provide
accurate readings.
All resistance values are approximate.
Main Winding Auxiliary Winding Rotor Winding
0.56 1.0 8.12
w c _ g r 0 0 0 9 3 8
a
b
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