CHAPTER 3. TROUBLESHOOTING
SECTION 1. TROUBLE SHOOTING PROCEDURES
1. General
A. Troubleshooting is an orderly process of checking and eliminating possible causes of trouble until the
exact cause of a trouble is found. As a rule, the best place to start looking for the cause of a trouble in a
circuit is at the source of power. Continue testing and checking the circuit, step-by-step, in an orderly man-
ner, until the cause of trouble is located.
B. This section provides information useful in diagnosing and correcting certain troubles which cause un-
satisfactory operation or failure of the equipment.
C. Minor troubles may be remedied by the operator; however, major repairs must be undertaken by expe-
rienced mechanics and electricians only.
2. Trouble Shooting Chart (Figure 5)
A. Description
The troubleshooting chart lists information under three headings as follows:
(1) Trouble, Symptom, and Condition
(2) Probable Cause
(3) Test, Check, and/or Remedy
B. Use of the Trouble Shooting Chart
(1) A troubleshooting chart is furnished to provide maintenance and repair personnel with a time-sav-
ing guide for locating trouble. To use the chart, proceed as follows:
(a) Locate the symptom
(s)
of trouble in the “Trouble” column.
(b) Check the probable causes of trouble in the “Probable Cause” column.
(c) Test, check, repair, or correct the trouble as indicated in the “Remedy” column.
(2) If the cause of a trouble is an uncommon one and cannot be located by use of the chart, the only
alternative is to start at the source of power or supply and check the affected circuit or system com-
pletely. Use schematic and connection diagrams which are supplied with this manual.
(3) Electrical components mentioned in the trouble shooting chart are identified by a noun name and
corresponding symbol which allows the user to identify the item more easily on schematic diagrams.
OM-2028
June 20/89 Revised
3-1
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Содержание 6910
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Страница 100: ...Test Receptacle Connector Termi nals Identification Figure 4 OM 2028 3 1 June 20 89 Revised Page 8 ...
Страница 128: ...Generator Set Figure 1 OM 2028 4 3 May 1 91 Revised Page 2 ...
Страница 130: ...Canopy Assembly Figure 2 OM 2028 4 3 May 1 91 Revised Page 4 ...
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Страница 134: ...Generator Set Without Canopy Figure 3 OM 2028 4 3 May 1 91 Revised Page 8 ...
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Страница 138: ...Radiator and Cooling System Group Figure 4 OM 2028 4 3 May 1 91 Revised Page 12 ...
Страница 140: ...Air Cleaner Assembly For units manufactured before and during August 1990 Figure 5 OM 2028 4 3 May 1 91 Revised Page 14 ...
Страница 142: ...Electric Governor Kit Figure 6 OM 2028 4 3 May 1 91 Revised Page 16 ...
Страница 144: ...Fuel Lines Assembly Figure 7 OM 2028 4 3 May 1 91 Revised Page 18 ...
Страница 146: ...Oil Line Assembly Figure 8 OM 2028 4 3 May 1 91 Revised Page 20 ...
Страница 148: ...Stator Terminal Panel Assembly Figure 9 OM 2028 4 3 May 1 91 Revised Page 22 ...
Страница 150: ...Power Module Panel Assembly Figure 10 OM 2028 4 3 May 1 91 Revised Page 24 ...
Страница 152: ...Control Box Assembly Figure 11 OM 2028 4 3 May 1 91 Revised Page 26 ...
Страница 154: ...Generator Controls Tray Assembly Figure 12 OM 2028 4 3 May 1 91 Revised Page 28 ...
Страница 156: ...Protective Relays Tray Assembly Figure 13 OM 2028 4 3 May 1 91 Revised Page 30 ...
Страница 158: ...Control Box and Internal Components Group Figure 14 OM 2028 4 3 May 1 91 Revised Page 32 ...
Страница 160: ...Engine Control Panel Assembly Figure 15 OM 2028 4 3 May 1 91 Revised Page 34 ...
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Страница 164: ...Output Terminal Board Assembly Figure 16 OM 2028 4 3 May 1 91 Revised Page 38 ...
Страница 166: ...Generator Assembly Figure 17 OM 2028 4 3 May 1 91 Revised Page 40 ...
Страница 168: ...Mounting Frame Assembly and Lifting Yoke Figure 18 OM 2028 4 3 May 1 91 Revised Page 42 ...
Страница 170: ...Water Heater Figure 19 OM 2028 4 3 May 1 91 Revised Page 44 ...
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