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Engine Maintenance (Rev. 04/03)
67
ENGINE COOLING SYSTEM
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.
Engine Cooling Components
1.
Accumulator
4.
Thermostat Housing
2.
Engine
5.
Fuel Heater Option
3.
High H
2
O Temperature Switch
6.
Expansion Tank
All water-cooled engines are shipped from the factory with
a 50% permanent type antifreeze concentrate and 50%
water mixture 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.
Summary of Contents for KD-II SR
Page 4: ......
Page 8: ......
Page 13: ...Safety Precautions Rev 04 03 v AEA40...
Page 14: ...Safety Precautions Rev 04 03 vi AEA38...
Page 33: ...Unit Description Rev 04 03 19 1 Evaporator 2 Access Door Rear View Curbside KD II SR 1 2 AEA38...
Page 37: ...Unit Description Rev 04 03 23 Power Receptacle Box KD II SR 50 AEA42...
Page 58: ...Remote Control Panel Features Rev 04 03 44...
Page 112: ...Refrigeration Maintenance Rev 04 03 98...
Page 120: ...106...
Page 146: ...132...
Page 156: ...142...
Page 162: ...148...
Page 170: ...156...
Page 172: ...158...
Page 173: ...159 KD II 30 Schematic Diagram Page 1 of 2...
Page 174: ...160 KD II 30 Schematic Diagram Page 2 of 2...
Page 175: ...161 KD II 30 Wiring Diagram Page 1 of 2...
Page 176: ...162 KD II 30 Wiring Diagram Page 2 of 2...
Page 177: ...163 KD II 50 Schematic Diagram Page 1 of 2...
Page 178: ...164 KD II 50 Schematic Diagram Page 2 of 2...
Page 179: ...165 KD II 50 Wiring Diagram Page 1 of 2...
Page 180: ...166 KD II 50 Wiring Diagram Page 2 of 2...
Page 181: ...167 KD II 50 SR 230 1 60 Wiring Diagram Page 1 of 2...
Page 182: ...168 KD II 50 SR 230 1 60 Wiring Diagram Page 2 of 2...