
(g) Fuse-interlock relay
The function of the fuse-interlock relay
(8)
is to interrupt the load contactor holding coil circuit
and remove the load in case of a “blown” fuse
(8, Fig. 6)
in the protective relay coil circuit.
(h) Auxiliary underfrequency relay
The function of the auxiliary underfrequency relay
(9)
is to automatically open the excitation-
deenergization relay and disconnect the voltage regulator any time generator frequency
drops to 380 Hz or below. This protects the voltage regulator PC board
(13, Fig. 7)
against
overload which could be caused by high voltage regulator output in its attempt to maintain
voltage when the generator is operating at a speed which cannot produce normal voltage out-
put.
NOTE: If the auxiliary underfrequency relay is tripped, it will be necessary to momentarily
place engine operating mode switch (5, Fig. 8) in
BUILD-UP-VOLTAGE
position to restore
generator voltage.
(j ) Terminal boards
Two terminal boards
(14)
provide connection facilities for small leads.
(k) Solid-state voltage regulator
This voltage regulator consists of two assemblies, a line-drop compensation assembly
(17)
and a voltage regulator PC board
(13).
A full and working description of this voltage regulator
is provided in Solid State Regulator Manual OM-2020, which is a part of Chapter 6 of this
manual.
(l) Overload module
(5)
See Para. 6, H,
(3)
for functional description of the overload module.
(m) Rectifier
(10)
See Para. 6, H,
(4)
for functional description of the load contactor rectifier.
F. Engine Control Panel (See Fig. 8)
The engine control panel is mounted directly below the control box. Along with engine controls and in-
struments, generator output controls are mounted here. A plexiglas window in the canopy rear door,
slants outward at the bottom to form an opening for access to controls when the door is closed.
(1) Engine instruments
Engine operation is monitored by an ammeter
(4)
a coolant temperature gage
(8),
and an oil pres-
sure gage
(10).
An hourmeter
(6)
records engine operating time.
(a) Ammeter
The ammeter
(4)
indicates the direction and value of current flow in the 12-V DC electrical
system. Its graduated range is from -60 A through 0 A, to +60 A.
(b) Temperature gage
The temperature gage
(8)
is a mechanical type of unit construction. It consists of a panel
mounted indicating mechanism which is connected by a capillary tube to a bulb mounted in
the engine cooling system. The gage indicates engine coolant temperature in the range of
100F to 220F.
OM-2053
1-1
December 31/91 Revised
Page 12
Содержание 60PL20
Страница 2: ...This page intentionally left blank ...
Страница 6: ...This page intentionally left blank OM 2053 Introduction December 31 91 Revised Page 2 ...
Страница 36: ...This page intentionally left blank OM 2053 1 2 March 20 89 Page 4 ...
Страница 42: ...This page intentionally left blank OM 2053 1 3 December 31 91 Revised Page 6 ...
Страница 53: ...Removable Rear Frame Cross Member Figure 3 OM 2053 December 31 91 Revised 2 1 Page 11 ...
Страница 54: ...This page intentionally left blank OM 2053 2 1 December 31 91 Revised Page 12 ...
Страница 78: ...This page intentionally left blank OM 2053 2 3 December 31 91 Revised Page 20 ...
Страница 84: ...This page intentionally left blank OM 2053 3 1 December 31 91 Revised Page 6 ...
Страница 106: ...Generator Set Figure 1 OM 2053 4 3 December 31 91 Revised Page 2 ...
Страница 108: ...Canopy Assembly Figure 2 OM 2053 4 3 December 31 91 Revised Page 4 ...
Страница 110: ...Generator Set Without Canopy Specification 7009B 1 Illustrated Figure 3 OM 2053 4 3 December 31 91 Revised Page 6 ...
Страница 112: ...This page intentionally left blank OM 2053 4 3 December 31 91 Revised Page 8 ...
Страница 114: ...Radiator and Cooling System Group Figure 4 OM 2053 4 3 December 31 91 Revised Page 10 ...
Страница 116: ...Air Cleaner Assembly Figure 5 OM 2053 4 3 December 31 91 Revised Page 12 ...
Страница 118: ...Electric Governor Kit Woodward Governor Figure 6 OM 2053 4 3 December 31 91 Revised Page 14 ...
Страница 120: ...Electric Governor Kit Barber Colman Governor Figure 6A OM 2053 4 3 December 31 91 Revised Page 16 ...
Страница 122: ...Fuel Lines Assembly Figure 7 OM 2053 4 3 December 31 91 Revised Page 18 ...
Страница 124: ...Oil Line Assembly Figure 8 OM 2053 4 3 December 31 91 Revised Page 20 ...
Страница 128: ...Control Box Assembly Figure 10 OM 2053 4 3 December 31 91 Revised Page 24 ...
Страница 130: ...This page intentionally left blank OM 2053 4 3 December 31 91 Revised Page 26 ...
Страница 132: ...Engine Control Panel Assembly Figure 11 OM 2053 4 3 December 31 91 Revised Page 28 ...
Страница 134: ...4 3 Revised Page 30 March 30 93 Contactor Panel Assembly Figure 12 OM 2053 ...
Страница 136: ...Generator Group Figure 13 OM 2053 4 3 December 31 91 Revised Page 32 ...
Страница 138: ...Trailer Assembly Figure 14 OM 2053 4 3 December 31 91 Revised Page 34 ...
Страница 140: ...This page intentionally left blank OM 2053 4 3 December 31 91 Revised Page 36 ...
Страница 142: ...This page intentionally left blank OM 2053 4 3 December 31 91 Revised Page 38 ...
Страница 152: ...This page intentionally left blank OM 2053 5 0 March 20 89 Page 2 ...
Страница 154: ...This page intentionally left blank OM 2053 6 0 December 31 91 Revised Page 2 ...
Страница 155: ......
Страница 156: ......
Страница 157: ......
Страница 158: ......
Страница 159: ......
Страница 160: ......
Страница 161: ......
Страница 162: ......
Страница 163: ......
Страница 164: ......
Страница 165: ......
Страница 166: ......
Страница 167: ......
Страница 168: ......
Страница 169: ......
Страница 170: ......
Страница 171: ......
Страница 172: ......
Страница 173: ......
Страница 174: ......
Страница 176: ...This page intentionally left blank OM 2053 Unusual Service Conditions December 31 91 Revised Page 2 ...
Страница 178: ...This page intentionally left blank Wetstacking December 31 91 Revised Page 2 ...