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Hobart
Portable Generator
GPU-600
Hobart GPU-600 Service Manual
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1.
Front
Panel
8.
R13
Start
Level Control
2.
M1 DC
Ammeter
9.
F1
Fuse
3.
M2 DC
Voltmeter
10.
S1
Input
On-Off
Switch
4.
DS2
Overload Light
11.
S2
Output
On-Off Switch
5.
115 VAC
Receptacle
12.
Input
Power
Light (amber)
6.
MOV Surge
Suppressor
13.
Output
Contactor
Light (green)
7.
115 VAC
Weather
Cover
Front Panel Assembly,
GPU-600
Figure
4
OM-2010
April 10/89 Revised
2-1
Page 7
26
28
Table of Contents
Default Chapter
3
General
3
Installation and Grounding of Electrically Powered Equipment
3
Output Cables and Terminals
3
Shock Prevention
3
Bodily Injury Prevention
4
Fire and Explosion Prevention
4
Medical and First Aid Treatment
4
Toxic Fume Prevention
4
Table of Contents
5
Subject Chapter/Section Page
6
List of Effective Pages
9
Introduction
11
Format
12
Chapter 1. Receipt of Equipment and Installation
15
Section 1. Receipt of Equipment
15
Installation Dimension Drawing
16
Connecting the Machine to Line Voltage
17
Internal Wiring Check
17
Location
17
Section 2. Installation
17
Grounding
18
Recommended Wire Size Table
18
Output Leads
19
Chapter 2. Description and Operation
21
Section 1. Description
21
General
21
General Assembly of GPU-600 Power Supply
22
Special Features
23
Physical
24
Electrical
24
Detailed Description
25
Main Transformer
25
General
25
Internal Components for GPU-600
26
Front Panel Assembly, GPU-600
27
Control Transformer
28
Auxiliary Power Circuitry
28
Output Contactor Circuitry
28
Output Filter Circuitry
29
Output Meter
29
Output Contactor Switch and Light
29
Main SCR Heat Sink Assembly
30
Overload Trip Light
30
Solid State Printed Circuit Control Board
30
Electronic Overvoltage/Overload Trip Circuit
30
Regulated DC Output Voltage
30
Thermal Overload Trip
31
SCR Heat Sink Assembly
31
Section 2. Operation
33
General
33
Preparation for Operation
33
Operation Procedure
34
Input Control Functions
34
Output Control Functions
34
Voltmeter
34
Output Current Limit
34
Controls and Instruments
35
Inspection
37
Lubrication
37
Chapter 3. Servicing
37
Section 1. Maintenance
37
General
37
Parts Replacement
38
Minor Electrical Components
38
Major Electrical Components
38
Inspection Check and Repair
39
Voltmeter, Ammeter and Control Switches
39
Indicating Lights
39
Power Input and Output Lights
39
General
39
Exterior Cables and Connections
39
Input and Output Cables
39
Cable Connections
39
Controls and Instruments
39
Overload Thermostat
40
Starting Current Limit Potentiometer
40
Overload Trip Indicating Light
40
Major Components Check and Repair
42
Main Power Transformer
42
Output Contactor, K2
42
Control Transformer
42
Silicon Controlled Rectifier Assembly and Flyback Diode
43
Visual
43
Voltohmmeter
43
Filter Choke and Capacitor Voltage Test
44
Voltage Test for SCR Assembly
44
Printed Circuit Control Board
44
Calibration and Test of Pc Control Board
47
Printed Circuit Board Test Values and Adjustments
47
Test and Calibration Procedure
47
Printed Circuit Control Board Test Points
49
Test Value and Comment Tabulation
50
Troubleshooting
53
Equipment for Troubleshooting
54
Safety
54
Voltages of Interest
54
SCR Malfunction Instructions
55
Normal SCR Malfunction Conditions
55
Severe SCR Malfunction Conditions
55
SCR Tests or Checks
55
Trouble, Symptom and Condition
56
Machine will Not Operate
56
Output Voltage Not Proper Level
62
Illustrated Parts List
63
Parts List Form
64
“FIGURE-ITEM NO.” Column
64
“HOBART PART NUMBER” Column
64
“EFF” (Effective) Column
64
Manufacturer’s Codes
65
Explanation of Manufacturer’s (Vendor) Code List
65
Parts List
67
Explanation of Parts List Arrangement
67
Symbols and Abbreviations
67
General Assembly GPU-600
68
Lifting Yoke Assembly
72
Front Panel Assembly
76
Numerical Index
79
Explanation of Numerical Index
79
Optional Equipment
83
4
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Hobart GPU-600 Specifications
General
Brand
Hobart
Model
GPU-600
Category
Portable Generator
Language
English
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