Guardian Technologies 4270 manuals

Guardian technologies 4270 User Manual (100 pages)

Brand: Guardian-technologies | Category: Generators | Size: 9.25 MB |

English

Table of contents

DIAGNOSTIC

1

REPAIR MANUAL

1

REPLACEMENT PARTS

2

Table of Contents

3

MAGNETISM

5

ELECTROMAGNETIC FIELDS

5

ELECTROMAGNETIC INDUCTION

5

A SIMPLE AC GENERATOR

6

Section 1

7

GENERATOR FUNDAMENTALS

7

FIELD BOOST

8

GENERATOR CONVERSION TO

8

120 VAC ONLY — DUAL CIRCUITS

8

ROTOR ASSEMBLY

10

STATOR ASSEMBLY

10

BRUSH HOLDER

11

BATTERY CHARGE COMPONENTS

11

EXCITATION CIRCUIT COMPONENTS

11

Section 2

12

MAJOR GENERATOR COMPONENTS

12

EFFECTS OF DIRT AND MOISTURE

14

INSULATION RESISTANCE TESTERS

14

DRYING THE GENERATOR

14

CLEANING THE GENERATOR

14

STATOR INSULATION RESISTANCE

15

TESTING ROTOR INSULATION

16

THE MEGOHMMETER

16

MEASURING AC VOLTAGE

17

MEASURING DC VOLTAGE

17

MEASURING AC FREQUENCY

18

MEASURING CURRENT

18

MEASURING RESISTANCE

18

ELECTRICAL UNITS

19

OHM'S LAW

19

INTRODUCTION

20

OPERATIONAL ANALYSIS

20

Section 5

21

ENGINE DC CONTROL SYSTEM

21

ENGINE CONTROL CIRCUIT BOARD

26

14 AMP FUSE

28

PREHEAT SWITCH

28

START/STOP SWITCH

28

STARTER CONTACTOR & MOTOR

28

ENGINE GOVERNOR

29

FUEL INJECTION PUMP

29

FUEL NOZZLES/INJECTORS

29

GLOW PLUGS

29

ENGINE PROTECTIVE DEVICES

30

LOW OIL PRESSURE SWITCH

30

OVERSPEED PROTECTION

30

Section 6

32

TROUBLESHOOTING FLOWCHARTS

32

(continued)

33

FREQUENCY

39

TEST 2 - CHECK & ADJUST

39

AMP DRAW

40

TEST 5- WIRE CONTINUITY

41

TEST 6- CHECK FIELD BOOST

41

Section 7

42

DIAGNOSTIC TESTS

42

WINDINGS

43

TEST 9- CHECK BRUSH LEADS

43

TEST 11- CHECK ROTOR ASSEMBLY

44

RECTIFIER

46

TEST 19- TEST PRE-HEAT SWITCH

47

TEST 20- CHECK FUEL PUMP

47

TEST 21- CHECK 14 AMP FUSE

48

CIRCUIT BOARD

48

TEST 27 - CHECK STARTER MOTOR

50

TEST 28- CHECK FUEL SUPPLY

53

TEST 30 - CHECK WIRE 18

53

TEST 31 - CHECK FUEL SOLENOID

53

TEST 33- TEST GLOW PLUGS

54

TEST 34- TEST D1 DIODE

54

TEST 36- FUEL INJECTOR PUMP

55

DOWN TEST / COMPRESSION TEST

56

MAJOR DISASSEMBLY

59

RE-ASSEMBLY

60

BELT TENSIONING

60

Section 8

61

ASSEMBLY

61

Section 9

62

Exploded Views / Part Numbers

62

Section 10

90

SPECIFICATIONS & CHARTS

90

ENGINE SPECIFICATIONS

91

GENERATOR SPECIFICATIONS

91

Section 11

94

ELECTRICAL DATA

94

SHEET 2 OF 2

99

LEG EN D

99

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