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See 2-3 Fig. 13 for typical test values at test receptacle and test box.
7. Check Connections and Leads
ALWAYS make a check of connections and leads to a component suspected of being faulty. With the
exception of a few instances, we will assume that connections and wiring have always been checked
first and that power has not been lost as a result of defective wiring or connections.
8. Electric Governor Trouble Shooting
The following facts concerning the operation of the electric governor may be helpful in understanding
the system and in determining which unit in the system is faulty in case of troubles.
a.
The system requires two sources of power to operate normally.
(1)
12-V DC input power (from engine electrical system)
(2)
AC input power (from magnetic pickup)
b. Assuming other conditions are normal, the actuator will go to, or remain in, IDLE position
under the following conditions.
(1)
No 12-V DC power to control box.
(2)
No voltage from control box to actuator.
(3)
No signal from magnetic pickup.
c.
The actuator will “surge” under the following conditions:
(1)
“Stability” or “gain” adjustment set too “high”.
(2)
Throttle linkage binding.
9. Engine Trouble Shooting Procedures
a.
General
The following engine troubleshooting procedures were taken from Perkins Diesel’s “Field Service
Data Book”. Certain abnormal conditions which may interfere with satisfactory engine operation,
together with methods of determining the cause of such conditions, are covered in the Trouble
Shooting Chart.
The ability of the engine to start and operate properly depends primarily on two things:
(1)
The presence of an adequate supply of air, compressed to a sufficiently high compression
pressure.
(2)
The injection of the proper amount of fuel at the right time.
Lack of power, even running, excessive vibration, stalling, and hard starting may be caused by
low compression, faulty injection in one or more cylinders, faulty timing or valves, or lack of
sufficient air. Refer to Perkins Diesel Handbook for troubleshooting and repair procedures.
10. Illustrations
Illustrations, Figures 1 through 8, are referred to throughout the Trouble Shooting Chart
OM-499
May 31/94 Revised
3-1
Page 3
Содержание 6824-1
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Страница 6: ...This page intentionally left blank OM 499 Safety Warnings May 31 94 Revised Page 4...
Страница 8: ...This page intentionally left blank OM 499 Introduction May 31 94 Revised Page 2...
Страница 14: ...This page intentionally left blank OM 499 Table of Contents May 31 94 Revised Page 6...
Страница 39: ...No 2 Output Control Figure 14 No 2 Power Module Panel Figure 15 OM 499 May 31 94 Revised 1 1 Page 25...
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Страница 66: ...Engine Control Panel in Tilt out Position Figure 8 OM 499 2 1 May 31 94 Revised Page 12...
Страница 90: ...No 2 Output on Dual Output Units Figure 13 OM 499 2 3 May 31 94 Revised Page 20...
Страница 97: ...Test Receptacle Connector Terminals Identification Figure 4 OM 499 May 31 94 Revised 3 1 Page 7...
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Страница 122: ...Generator Set Figure 1 OM 499 4 3 May 31 94 Revised Page 2...
Страница 124: ...Canopy Assembly Figure 2 OM 499 4 3 May 31 94 Revised Page 4...
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Страница 128: ...Canopy Assembly Figure 3 OM 499 4 3 May 31 94 Revised Page 8...
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Страница 132: ...Generator Set Without Canopy Figure 4 OM 499 4 3 May 31 94 Revised Page 12...
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Страница 136: ...Radiator and Cooling System Group Figure 5 OM 499 4 3 May 31 94 Revised Page 16...
Страница 138: ...Air Cleaner Assembly Figure 6 OM 499 4 3 May 31 94 Revised Page 18...
Страница 140: ...Electric Governor Assembly Woodward Governor Kit Part No 488701 Figure 7 OM 499 4 3 May 31 94 Revised Page 20...
Страница 142: ...Fuel Lines Assembly Figure 8 OM 499 4 3 May 31 94 Revised Page 22...
Страница 144: ...Oil Line Assembly Figure 9 OM 499 4 3 May 31 94 Revised Page 24...
Страница 146: ...Fuel Oil Lines Figure 10 OM 499 4 3 May 31 94 Revised Page 26...
Страница 148: ...Fuel Oil Lines Figure 11 OM 499 4 3 May 31 94 Revised Page 28...
Страница 150: ...Stator Terminal Panel Assembly Figure 12 OM 499 4 3 May 31 94 Revised Page 30...
Страница 152: ...Power Module Panel Assembly Figure 13 OM 499 4 3 May 31 94 Revised Page 32...
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Страница 156: ...Control Box Assembly Figure 14 OM 499 4 3 May 31 94 Revised Page 36...
Страница 158: ...Generator Controls Tray Assembly Figure 15 OM 499 4 3 May 31 94 Revised Page 38...
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Страница 162: ...Protective Relays Tray Assembly Figure 16 OM 499 4 3 May 31 94 Revised Page 42...
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Страница 166: ...Control Box and Internal Components Group Figure 17 OM 499 4 3 May 31 94 Revised Page 46...
Страница 168: ...Engine Control Panel Assembly Figure 18 OM 499 4 3 May 31 94 Revised Page 48...
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Страница 172: ...Output Terminal Board Assembly Figure 19 OM 499 4 3 May 31 94 Revised Page 52...
Страница 174: ...Generator Group Figure 20 OM 499 4 3 May 31 94 Revised Page 54...
Страница 176: ...Mounting Frame and Lifting Yoke Assembly Figure 21 OM 499 4 3 May 31 94 Revised Page 56...
Страница 178: ...Auxiliary Frame and Components Group Figure 22 OM 499 4 3 May 31 94 Revised Page 58...
Страница 180: ...Electric Governor Assembly OM 499 4 3 May 31 94 Revised Page 60...
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