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Generac Portable Products NP Series Manuals
Manuals and User Guides for Generac Portable Products NP Series. We have
1
Generac Portable Products NP Series manual available for free PDF download: Diagnostic Repair Manual
Generac Portable Products NP Series Diagnostic Repair Manual (76 pages)
with engine controller circuit board 92234
Brand:
Generac Portable Products
| Category:
Portable Generator
| Size: 3 MB
Table of Contents
Table of Contents
4
Magnetism and Electricity
5
Magnetic Induction
5
A Simple AC Generator
5
AC Generator Fundamentals
6
NP and Q Series Generators
6
Field Boost
7
Generator AC Connection System
7
Major Generator Components
9
Stator Assembly
9
Lower Bearing Carrier
9
Rotor Assembly
9
Battery Charge Components
10
Excitation Circuit Components
10
Excitation Circuit Breaker
10
Voltage Regulator
10
Insulation Resistance Test
11
Effects of Dirt and Moisture
11
Drying the Generator
11
Cleaning the Generator
11
Stator Insulation Resistance
12
Testing Rotor Insulation
12
Brushing and Vacuum Cleaning
12
The Megohmmeter
13
Testing Stator Insulation
13
Measuring Electricity
15
Meters
15
The vom
15
Measuring AC Voltages
15
Measuring Current
16
Measuring Resistance
16
Engine DC Control System
17
Introduction
17
Operational Analysis
17
Engine Controller Circuit Board
18
Circuit Condition - Cranking
18
Circuit Condition - Running
18
Circuit Board Connections
18
Battery
19
15 Amp Fuse
19
Recommended Battery
19
Battery Cables
19
Fuel Primer Switch
20
Start-Stop Switch
20
Starter Contactor & Motor
20
Troubleshooting Flow Charts
21
If Problem Involves AC Generator
21
Voltage & Frequency Are both High or Low
21
Frequency Good but Voltage Low or Residual
21
Diagnostic Tests
29
Check Engine Governor
29
Check Brush Leads
32
Test Excitation Circuit Breaker
33
Test Stator DPE Winding
33
Test Brushes & Slip Rings
34
Check Sensing Leads
34
Check Field Boost
35
Check/Adjust Voltage Regulator
35
Check Rotor Assembly
36
Rotor Resistance
36
Check Stator Power Windings
36
Check Main Circuit Breakers
37
Test Main Circuit Breakers
37
Check Load Voltage & Frequency
37
Check Load Watts & Amperage
38
Test Primer Switch
38
Check Engine Power
38
Try Cranking the Engine
38
Check Fuel Pump
39
Check Battery & Cables
39
Check Power Supply to Circuit Board
39
Check 15 Amp Fuse
39
Check Start-Stop Switch
40
Check Starter Contactor
40
Check Power Supply to Wire 56
40
Check Starter Motor
41
Check Fuel Supply
41
Test Fuel Pump
41
Check Fuel Solenoid
41
Check Ignition Spark
42
Check Spark Plug
42
Check Ignition Power Supply
42
Test Ignition System
43
Check Carburetion
43
Check Choke Operation
44
Check Engine
44
Cylinder Balance Test
44
Check Oil Pressure Switch
45
Test Oil Temperature Switch
46
Assembly
47
Sheet Metal
47
Air Cleaner, Carburetor & Choke
47
AC Generator
47
Electrical Data
67
Electrical Formulas
67
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