Honeywell hw400 Portable Generator User Manual


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ELECTRICAL DIAGNOSTICS (ALL MODELS EXCEPT HW3000/L)
8-8 www.honeywellgenerators.com Honeywell Portable Electrical Generator Service Manual
Rated Power Check
(Low Power Output)
NOTE: At high-altitudes, standard
carburetor air-fuel mixture will be
rich causing a decrease in engine
performance and an increase in
fuel consumption.
NOTE: At this time, a high-altitude
carburetor kit is not available.
Start Engine and
Add Resistive Loads Until
One of the Following Occurs:
s0OWER/UTPUTat the
NEMA L14-30R 240V Receptacle
is Within Rated Power
Specification Range
s&REQUENCY$ROPS"ELOW(Z
s6OLTAGE/UTPUT$ROPS"ELOW
Minimum
G
Y
W
X
114-
126V
228-
252V
114-
126V
If Minimum Rated Power
#ANNOT"E!CHIEVED
SEE%NGINE$IAGNOSTICS3ECTION
NOTE: The alternator must be at room temperature when resistance is measured.
#HECK"RUSH!SSEMBLYFOR%XCESSIVE7EAROR$EFECT
./4%5SE#AUTION7HEN2EMOVINGAND)NSTALLING"RUSH(OLDERTO!VOID$AMAGING"RUSHES
)F,ENGTH,ESSTHANMM2EPLACE"RUSH!SSEMBLY
)F,ENGTH'REATERTHANMM6ERIFY2ESISTANCE"ETWEEN%ACH
"RUSH4IPAND#ORRESPONDING4ERMINALIS,ESSTHANΩ
)F2ESISTANCE/UTOF3PEC2EPLACE"RUSH!SSEMBLY
Check Alternator Winding Resistances
$ISCONNECTTHE%XCITER#ONNECTOR
$ISCONNECTTHE&UEL#UTOUT7INDING#ONNECTOR
$ISCONNECTTHE7IRESATTHE!LTERNATOR4ERMINAL"LOCK
NOTE: Each Terminal Contains Nut, Lock Washer, and Flat Washer
-EASURE7INDING2ESISTANCESAS3PECIFIED"ELOW
Alternator Check
./4%4HEALTERNATORDIAGNOSTICSREQUIREMEASUREMENTSOFLOWRESISTANCE
VALUESWHICHAREBEYONDTHECAPABILITYOFATYPICALMULTIMETER
5SEONLYFORDIRECTIONALINDICATIONOFRESISTANCE
For best results, use an ohmmeter capable of measuring low resistance values:
Resolution: 10 milliohms
!CCURACY
+
1%
#HECKFOR#ROSS3HORTED7INDINGSINTHE3TATOR!SSEMBLY
#HECKFOR#ONTINUITY"ETWEEN7INDINGSAS3PECIFIED"ELOW
)F#ONTINUITYIS$IFFERENTTHAN3PECIFIED!BOVE
Replace Alternator
Refer to Illustrations on
Page 8-9.
#HECKFOR#ONTINUITY
"ETWEEN7INDINGS
#ONTINUITY
Specification
Stator-X Red Stator-Y White .O#ONTINUITY
Stator-Y White AVR Tap Green .O#ONTINUITY
Stator-X Red AVR Tap Green #ONTINUITY
Stator-X Red %ITHER%XCITER"LUE .O#ONTINUITY
Stator-Y White .O#ONTINUITY%ITHER%XCITER"LUE
Stator-X Red %ITHER&UEL#UTOUT"ROWN .O#ONTINUITY
Stator-Y White %ITHER&UEL#UTOUT"ROWN .O#ONTINUITY
%ITHER%XCITER"LUE .O#ONTINUITY%ITHER&UEL#UTOUT"ROWN
Measure Resistance
"ETWEEN7IRES
Resistance Range Specification (Ω)
Winding
Stator-X Red "LUE
AVR Tap Green White
OF3TATOR82ESISTANCE
Stator-Y White "ROWN
Exciter "LUE "LUE 
Rotor
Slip Rings
or
Slip Ring Terminals*

(7,
(7,
(7%, (7,
(7%,
(7%,
Fuel Cutout
  1.3 - 1.8
"ROWN "ROWN    
  
   
)F5SINGAN/HMMETERWITH+ELVIN"RIDGE#LIPS
-EASURE2ESISTANCEATTHE3LIP2ING7IRE4ERMINALSFOR"EST2ESULTS
If a Winding Resistance is Out of Spec, Replace Alternator
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