Guardian Technologies 4582 & 4987, 4451 & 4986, 4583 Section Disassembly and Exploded Views 66-71

Table of Contents

Section 6:
Diagnostic Tests	37-65
Introduction		37
Test 1 - Check No-Load Voltage and Frequency...		37
TEST 2 - CHECK MAIN CIRCUIT BREAKER		37
TEST 3- TEST EXCITATION CIRCUIT BREAKER		38
TEST 4 - FIXED EXCITATION TEST/ROTOR AMP DRAW		38
TEST 5 - CHECK STEPPER MOTOR CONTROL		40
Test 6 - Wire Continuity		41
Test 7 - Check Field Boost		41
TEST 8 - DIODE/RESISTOR		42
TEST 9 - TEST STATOR		43
TEST 10 - SENSING LEADS		44
TEST 11 - EXCITATION WIRING		45
TEST 12 - CHECK BRUSH LEADS		45
Test 13 - Check Brushes & Slip Rings		45
Test 14 - Check Rotor Assembly		46
Test 15 - Check Load Voltage & Frequency		46
Test 16 - Check Load Watts & Amperage		46
TEST 17 - CHECK BATTERY CHARGE OUTPUT		47
TEST 18 - CHECK 10 Amp BATTERY CHARGE OUTPUT....		47
Test 19 - Check Battery Charge Rectifier		47
TEST 20 - CHECK 10 AMP CIRCUIT BREAKER		48
Test 21- Check 10 Amp Fuse		48
Test 22- Check Battery & Cables		48
TEST 23- Check Voltage at Starter Contactor		49
Test 24 - Check Starter Contactor		49
Test 25 - Check Starter Motor		49
Conditions Affecting Starter Motor
Performance:		49
CHECKING THE PINION:		50
TOOLS FOR STARTER PERFORMANCE TEST:		50
Measuring Current:		50
Tachometer:		50
Test Bracket:		51
Remove Starter Motor:		51
Testing Starter Motor:		51
TEST 26 - Test Starter Contactor Relay (SCR)		51
TEST 27- Check Start-Run-Stop Switch		52
TEST 28- Check Start-Run-Stop (SW1) Wiring		52
Test 29 - Check Ignition Spark		53
Test 30 - Check Spark Plugs		53
TEST 31 - Remove Wire 18 / Shutdown Lead		54
TEST 32 - TEST START STOP RELAY		54
TEST 33- TEST WIRE 167		55
TEST 34 - TEST START STOP RELAY WIRING		56
Test 35 - Check and Adjust Ignition Magnetos		56
TEST 36: TEST FUEL SHUTOFF SOLENOID		57
TEST 37: TEST FUEL SHUTOFF SOLENOID VOLTAGE		57
TEST 38: CHECK FUEL PUMP		57

Test 39 - Check Carburetion		58
Test 40 - Valve Adjustment		58
Test 41 - Check Engine / Cylinder Leak
Down Test / Compression Test		59
Test 42 - Check Oil Pressure Switch and Wire 86...		60
TEST 43: Check Start Stop Relay (SSR)		60
TEST 44: TEST STARTER CONTACTOR RELAY (SCR)		61
TEST 45: CHECK WIRE 15 CIRCUIT		61
TEST 46: CHECK WIRE 14 CIRCUIT		61
TEST 47: Check Fuel Shutoff Solenoid		61
TEST 48: CHECK HOURMETER		62
TEST 49: CHECK WIRE 15B		62
TEST 50: CHECK WIRE 167		62
TEST 51: CHECK Wires 11S & 44S		62
TEST 52: CHECK IDLE CONTROL SWITCH (SW2)		63
TEST 53: CHECK IDLE CONTROL WIRING		63
Test 54: Check Idle Control Transformers		64
TEST 55: CHECK TR1 & TR2 Wiring		64
Test 56: CHoKe Test		65
Section 7:
Disassembly and Exploded Views	66-71
Major Disassembly		66
Generator – Figure A		68
Frame, Handle & Wheels – Figure B		70
Section 8:
Electrical Data	72-79
Wiring Diagram 12.5 & 15 kW (Units Without
Hourmeter) – Drawing No. 0E0228		72
Electrical Schematic 12.5 & 15 kW (Units
Without Hourmeter) – Drawing No. 0E0229-A		74
Wiring Diagram 12.5 & 15 kW
(Units With Hourmeter) – Drawing No. 0D4609-D..		76
Electrical Schematic 12.5 & 15 kW (Units With
Hourmeter) – Drawing No. 0D6297-A		78
Wiring Diagram 17.5 kW Units –
Drawing No. 0G0731		80
Electrical Schematic 17.5 kW Units –
Drawing No. 0G0733		82
Wiring Diagram, 17.5 kW Manual
Transfer Switch – Drawing No. 0G1065		83
INTERCONECTION DRAWING – 17.5 KW GENERATOR		84
Section 9:
Specifications & Charts	86-87
Generator Specifications		86
Engine Specifications		86
Engine Speeds and Voltage Specifications		86
Torque Specifications		87
TRIM Torque Specifications		87

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