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Ford 9N, 2N & 8N Discussion Board

Re: Portable generator not generating power

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Posted by Den N Ms on December 16, 2012 at 15:06:39 from (

In Reply to: Re: Portable generator not generating power posted by Den N Ms on December 16, 2012 at 15:01:02:

(if generator will not re-excite)
1. Remove end cover screws and end cover
from genhead. NOTE: The capacitor on the
GHC6510 and H650CS is located in the panel
assembly, see To Remove Panel Assembly for
this unit and proceed.
a. Remove capacitor leads.
b. Connect VOM to capacitor and watch for
low ohms reading that slowly progresses
to an open circuit. Open circuit from beginning
indicates bad capacitor.
(if generator will not re-excite and capacitor is
1. If the capacitor checks okay, check for open
circuits in stator.
2. To check for open circuits in stator,
attach VOM to the following leads:
A. Black- Orange
B. Red- Green
C. Pink capacitor lead- Pink capacitor
Open circuit indicates bad stator.
3. If open circuits are not found and there is
still a problem, check for circuits grounded
in stator. Attach VOM between:
A. Black- Stator laminations *
B. Red- Stator laminations*
C. Pink capacitor leads- Stator laminations*
No reading indicates good stator. No reading
will be indicated on meter as OL.
4. Attach Vom between black and pink capacitor
lead; and red and pink capacitor lead.
Your reading should be infinity or OL. If you
read zero or above, this indicates bad stator.
Most commonly caused by lacings meshed
between windings as shown.
* Varnish on the laminations must be
scraped off to make contact with the
metal surface for correct readings.
(if generator will not re-excite and Stator is OK)
1. If stator checks okay, then check rotor for
open circuits. If the rotor has two diodes,
remove one diode and attach VOM to solder
junction of removed diode to solder junction
of the remaining diode. Open circuit indicates
bad rotor. If the rotor has one diode, remove
the 1/4"-20 nut above the 1/4" female connector
and remove from diode bracket.
Attach VOM to female connector and solder
junction on diode. Open circuit indicates bad rotor.


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