Wacker Neuson G2.5A, Repair Manual

Page: 71 / 96

Portable Generator Repair G 3.7A;G/GS 5.6A;GS 8.5V;GS 9.7V
wc_tx000208gb.fm
67
6.22 Rotor Windings
See Graphic: wc_gr000950
Before testing rotor, visually inspect windings for dark streaks which
indicate a burned or shorted winding. Rotate ball bearing by hand.
Replace it if it is rough, noisy or dry.
Checking Rotor
6.22.1 Remove end cover and brush assembly.
6.22.2 Measure resistance as shown in the illustration, by measuring the
winding at the slip rings.
6.22.3 Record resistance values of both windings and compare them with
values listed in
Resistance Values. See Note in Stator Windings for
resistor readings.
6.22.4 Check for grounded windings by holding one meter lead to a slip ring
and other lead to metal frame on rotor.
Replace rotor if windings are open, shorted internally or shorted to
metal frame.
wc_tx000950