Portable Generator Repair G 2.5A
wc_tx000207gb.fm 37
5.10 Loss of Residual Magnetism
See Graphic: wc_gr000936
If the rotor has been removed, or the generator has been stored over
six months, the rotor’s magnetism may be lost. Loss of magnetism will
prevent the generator from building voltage.
Contact with exposed connections inside the control box or while
handling battery leads can cause severe electrical shocks. Be
extremely careful to avoid touching any exposed connections. Never
wear jewelry or use tools or metal items that may make contact across
exposed connections. Review safety rules at beginning of this manual.
To restore magnetism to the rotor, “flash” it as follows:
5.10.1 Remove the two screws and the end cover. Locate the capacitor (b)
that is attached to the stator housing (a).
5.10.2 Run generator at normal no-load speed – 3700 rpm, auto-idle off.
5.10.3 Briefly touch a 12 VDC battery (c) across the two capacitor
connections to pulse the auxiliary winding. The leads should remain
attached to capacitor. The polarity of the battery leads is not important.
CAUTION: DO NOT hold battery leads on connection longer than two
seconds.
The output voltage should quickly come up to normal levels. Repeat if
necessary.
5.10.4 Stop engine and replace end cover.
WARNING
w c _ g r 0 0 0 9 3 6
a
c
b
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