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Wacker Neuson
Portable Generator
GP 3800A
Wacker Neuson GP 3800A Repair Manual
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Maintenance
GP Repair
wc_tx000
546gb
.fm
50
4.15
Electric
al Schematic—GP
3800A (0620010
rev. >
103)
53
55
Table of Contents
Default Chapter
5
Table of Contents
5
1 Safety Information
8
Operating Safety
9
Operator Safety While Using Internal Combustion Engines
11
Service Safety
12
Label Locations
13
Safety and Operating Labels
14
2 Technical Data
18
Generator-GP 2500A
18
Engine-GP 2500A
19
Generator-GP 3800A, GP 3800A CAN
20
Engine-GP 3800A, GP 3800A CAN
21
Generator-GP/GPS 5600A/5600A CAN
22
Engine-GP/GPS 5600A/5600A CAN
24
Generator-GP/GPS 6600A/6600A CAN
26
Engine-GP/GPS 6600A/6600A CAN
28
3 Operation
29
Information Regarding Operation
29
Determining Power Requirements
29
Outdoor Installation
31
Indoor Installation
31
Recommended Battery (GPS Only)
31
Generator Derating
32
Grounding the Generator
33
Control Panel
34
Control Panel-GP 3800
35
Control Panel-GP 5600/GP6600
36
Ground Fault Interrupt (GFI)
37
Twist-Lock Receptacles
37
Engine Auto Idle
38
Engine Speed
38
Voltage Selection
39
To Start
40
To Stop
41
4 Maintenance
42
Engine Maintenance
42
Periodic Maintenance Schedule
42
Engine Oil
43
Servicing Air Cleaner
44
Spark Plug
45
Cleaning the Sediment Cup
46
Carburetor Adjustment
46
Adjusting Engine Speed
47
Storage
48
Transport
49
Electrical Schematic-GP 2500A
50
Components-GP 2500A
51
Electrical Schematic-GP 3800A (0620010 Rev. < 104)
52
Components-GP 3800A (0620010 Rev. < 104)
53
Electrical Schematic-GP 3800A (0620010 Rev. > 103)
54
Components-GP 3800A (0620010 Rev. > 103)
55
Electrical Schematic-GP 3800A CAN (0620041 Rev. < 104)
56
Components-GP 3800A CAN (0620041 Rev. < 104)
57
Electrical Schematic-GP 3800A CAN (0620041 Rev. > 103)
58
Components-GP 3800A CAN (0620041 Rev. > 103)
59
Electrical Schematic-GP/GPS 5600A/6600A (Rev. < 104)
60
Components-GP/GPS 5600A/6600A (Rev. < 104)
61
Electrical Schematic-GP/GPS 5600A/6600A (Rev. > 103)
62
Components-GP/GPS 5600A/6600A (Rev. > 103)
63
Electrical Schematic (CAN)-GP/GPS 5600A/6600A (Rev. < 104)
64
Components (CAN)-GP/GPS 5600A/6600A (Rev. < 104)
65
Electrical Schematic (CAN)-GP/GPS 5600A/6600A (Rev. >103)
66
Components (CAN)-GP/GPS 5600A/6600A (Rev. > 103)
67
Engine Schematic (All)-GP/GPS 3800A/5600A/6600A
68
Engine Components (All)-GP/GPS 3800A/5600A/6600A
69
5 Theory of Operation
71
Introduction
71
Windings and Fields
72
Voltage Regulation
73
Auto Idle Circuit
74
Anti-Afterfire Circuit
75
6 Troubleshooting
76
Troubleshooting Methodology
76
Checking Continuity
78
Checking Resistance
78
Checking Voltage
78
Troubleshooting Flowcharts
79
No Voltage at Receptacles-Flowchart 1A
80
No Voltage at Receptacles-Flowchart 1B
81
Checking Voltage at Generator Terminal Strip
82
Checking Voltage at Plug-GP 2500A
83
Checking Main and Rotor Windings
84
No Voltage at Receptacles-Flowchart 1C
86
Checking Main Circuit Breaker and Receptacle Circuitry
88
Low Voltage at Receptacles-Flowchart 2A
90
Checking Brushes
91
Checking Excitation Winding
92
Checking Avr's Sensing Wires-GP 2500A
94
Checking Avr's Sensing Wires
96
Confirming a Malfunctioning AVR
98
Checking and Installing the Voltage Selector Switch (VSS)
100
High Voltage Troubleshooting-Flowchart 3A
102
Auto Idle Circuit Troubleshooting-Flowchart 4A
103
Checking Voltage to Auto Idle Solenoid
104
Checking Auto Idle Circuitry between Generator and Fuse
106
Checking Auto Idle Circuitry between Fuse and Auto Idle Unit
108
Engine Backfires-Troubleshooting Flowchart 5A
109
Checking Anit-Afterfire Solenoid (AAS) Circuit
110
7 Disassembly/Assembly Procedures
113
Tools
113
Ordering Parts
113
Reference Numbers ( )
113
Weight Block
113
Replacing the Muffler
114
Replacing the Fuel Tank
116
Replacing the Stator
118
Replacing the Rotor
120
Replacing the Engine
122
Torque Values
127
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Wacker Neuson GP 3800A Specifications
General
Brand
Wacker Neuson
Model
GP 3800A
Category
Portable Generator
Language
English
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