Guardian Technologies 5308 Manual De Usuario

table of contents

Page 1

saFetY .................. insiDe FRont coveR (iFc)

NOTICE TO USERS OF THIS MANUAL ..............................IFC
REPLACEMENT PARTS .....................................................IFC

table oF contents ...................................... 1-2

section 1:

geneRatoR FunDaMentals ....................... 3-5

MAgNETISM ..................................................................... 3
ELECTROMAgNETIC FIELdS .............................................. 3
ELECTROMAgNETIC INdUCTION ...................................... 3
A SIMPLE AC gENERATOR ................................................ 4
A MORE SOPHISTICATEd AC gENERATOR ......................... 4

section 2:

MeasuRing electRicitY ............................. 6-8

METERS  ..........................................................................  6
THE VOM  ........................................................................  6
MEASURINg AC VOLTAgE  ..............................................  6
MEASURINg dC VOLTAgE  ..............................................  6
MEASURINg AC FREqUENCy  .........................................  6
MEASURINg CURRENT  ....................................................  7
MEASURINg RESISTANCE  ................................................  7
ELECTRICAL UNITS  ..........................................................  8
OHM'S LAw ....................................................................  8

section 3:

DescRiption anD coMponents ............. 9-15

INTROdUCTION  ..............................................................  9
ENgINE-gENERATOR dRIVE SySTEM  ...............................  9
THE AC gENERATOR  .......................................................  9
ROTOR ASSEMbLy  ..........................................................  9
STATOR ASSEMbLy ........................................................  10
bRUSH HOLdER ANd bRUSHES  .....................................  10
OTHER AC gENERATOR COMPONENTS  ........................  10

EXCITATION CIRCUIT bREAKER ..................................  10
VOLTAgE REgULATOR  ..............................................  11
AdJUSTMENT PROCEdURE  .......................................  11

CIRCUIT bREAKERS ................................................... 12

ROTOR RESIdUAL MAgNETISM  .....................................  12
FIELd bOOST CIRCUIT  ...................................................  12
OPERATION  ...................................................................  12

STARTUP ................................................................... 12

ON-SPEEd OPERATION  ..............................................  12
FIELd EXCITATION  .....................................................  12
AC POwER wINdINg OUTPUT  ..................................  12
bATTERy CHARgE wINdINg OUTPUT  .......................  12
10 AMP bATTERy CHARgE wINdINg OUTPUT ..........  12

INSULATION RESISTANCE .............................................. 13
THE MEgOHMMETER ................................................... 13

gENERAL  ..................................................................  13
TESTINg STATOR INSULATION  ...................................  13
TESTINg ROTOR INSULATION  ....................................  13
HI-POT TESTER  ..........................................................  13

STATOR INSULATION RESISTANCE TEST .......................... 13

gENERAL  ..................................................................  13
TESTINg ALL STATOR wINdINgS TO gROUNd  ..........  14
TEST bETwEEN wINdINgS:  .......................................  14

ROTOR INSULATION RESISTANCE TEST  ..........................  15
CLEANINg THE gENERATOR  .........................................  15
dRyINg THE gENERATOR  .............................................  15

section 4:

engine Dc contRol sYsteM .................. 16-27

PRINTEd CIRCUIT bOARd .............................................. 16

gENERAL  ..................................................................  16
CIRCUIT bOARd CONNECTIONS  ...............................  16
dIP SwITCH POSITIONS  .............................................  16

bATTERy ....................................................................... 16

RECOMMENdEd bATTERy ........................................ 16

CONTROL PANEL COMPONENT IdENTIFICATION ...... 17-18
OPERATIONAL ANALySIS .......................................... 20-27

CIRCUIT CONdITION - REST  ......................................  20
CIRCUIT CONdITION - START  ....................................  22
CIRCUIT CONdITION - RUN  .......................................  24
CIRCUIT CONdITION - STOP  ......................................  26
FAULT SHUTdOwN  ...................................................  27

section 5:

tRoublesHooting FloWcHaRts .......... 28-36

INTROdUCTION ............................................................ 28
IF PRObLEM INVOLVES AC OUTPUT

............................... 28

PRObLEM 1 -

VOLTAgE & FREqUENCy ARE bOTH HIgH OR LOw .. 28

PRObLEM 2 -

gENERATOR PROdUCES ZERO VOLTAgE

OR RESIdUAL VOLTAgE (2-12 VAC) ...................... 29-30

PRObLEM 3 -

EXCESSIVE VOLTAgE/FREqUENCy

dROOP wHEN LOAd IS APPLIEd ............................... 30

PRObLEM 4 -

NO bATTERy CHARgE OUTPUT ................................. 31

PRObLEM 5 -

NO 10 AMP bATTERy CHARgE OUTPUT ................... 31

PRObLEM 6 -

ENgINE wILL NOT CRANK ........................................ 32

PRObLEM 7 -

ENgINE CRANKS bUT wILL NOT START ..................... 33

PRObLEM 8 -

ENgINE STARTS HARd ANd RUNS ROUgH ................ 34

PRObLEM 9 -

ENgINE STARTS THEN SHUTS dOwN ........................ 34

PRObLEM 10 -

10 AMP FUSE (F1) bLOwINg ..................................... 35

PRObLEM 11 -

UNIT OVERSPEEdS .................................................... 36

PRObLEM 12 -

IdLE CONTROL “RPM dOES NOT dECREASE” ........... 36

PRObLEM 13 -

IdLE CONTROL “RPM dOES NOT INCREASE

wHEN LOAd IS APPLIEd” .......................................... 36

PRObLEM 14 -

ENgINE “HUNTS” / ERRATIC IdLE .............................. 36