Engine Maintenance
61
Engine Cooling System
General Description
The engine employs a closed, circulating type,
pressurized cooling system. Correct engine
temperatures are controlled and maintained by a
radiator, fan and thermostat. The coolant is
circulated through the system by a belt-driven
centrifugal pump. The pump draws the coolant
from the side of the radiator (large header),
circulates it through the cylinder block and head,
then back to the radiator. A thermostat mounted in
the water outlet from the cylinder head to the
radiator automatically maintains coolant
temperature within the specified temperature
range.
All water-cooled engines are shipped from the
factory with a mixture of 50% permanent type
antifreeze concentrate and 50% water in the
engine cooling system.
This provides the following:
1. Prevents freezing down to -30 F (-34 C).
2. Retards rust and mineral scale that can cause
engine overheating.
3. Retards corrosion (acid) that can attack
accumulator tanks, water tubes, radiators and
core plugs.
4. Provides lubrication for the water pump seal.
2
8
7
6
4
3
5
1
AJA59
1.
Engine
5.
Overflow Tank
2.
Water Temperature Sensor
6.
Drain Tubing
3.
Radiator
7.
Drain Cock Adaptor
4.
Water Level Sensor
8.
Drain Cock
Figure 34: Engine Cooling Components
Содержание 919180
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Страница 32: ...Unit Description 32 Unit Photographs Figure 3 Front View Figure 4 Back View AJA584 AJA585...
Страница 33: ...Unit Description 33 Figure 5 Left Side View Figure 6 Right Side View AJA586 AJA58...
Страница 35: ...Unit Description 35 Figure 8 North American Power Receptacle Box AJA58...
Страница 38: ...Unit Description 38...
Страница 58: ...Electrical Maintenance 58...
Страница 66: ...Engine Maintenance 66 Figure 37 Fuel and Oil System Components...
Страница 84: ...Engine Maintenance 84...
Страница 96: ...Refrigeration Maintenance 96...
Страница 118: ...Hilliard Clutch Maintenance 118...
Страница 136: ...Cycle Diagrams 136...
Страница 140: ...Wiring and Schematic Diagrams Index 140...
Страница 141: ...141 Truck S Model SR 30 Schematic Diagram Page 1 of 2...
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Страница 143: ...143 Truck S Model 30 Units with P T Wiring Diagram Page 1 of 2...
Страница 144: ...144 Truck S Model 30 Units with P T Wiring Diagram Page 2 of 2...
Страница 145: ...145 Truck S Model 50 Schematic Diagram Page 1 of 2...
Страница 146: ...146 Truck S Model 50 Schematic Diagram Page 2 of 2...
Страница 147: ...147 Truck S Model 50 Units with P T Wiring Diagram Page 1 of 2...
Страница 148: ...148 Truck S Model 50 Units with P T Wiring Diagram Page 2 of 2...