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Engine Maintenance
98
Engine Thermostat
For the best engine operation, use a 180 F (82 C)
thermostat year round.
Engine Fuel System
The fuel system used on these diesel engines is a
high pressure system used in conjunction with a
prechamber.
The components of the fuel system are:
•
Fuel tank (may be the truck fuel tank)
•
Electric Fuel pump
•
Fuel filter
•
Injection pump
•
Injection nozzles.
A 10 psig (69 kPa) electric fuel pump pulls fuel
from the fuel tank through a fuel pump filter, then
pushes it to the fuel filter, and to the injection
pump. The prefilter is designed for diesel fuel and
is the only type that should be used.
The injection pump raises the pressure of the fuel
and meters the correct amount of fuel to the
nozzle at the correct time. The increased fuel
pressure will lift the spring loaded nozzle to admit
fuel into the combustion chamber.
The fuel system is relatively trouble free, and if
properly maintained will usually not require major
service repairs between engine overhauls.
The most common cause of fuel system problems
is contamination. It cannot be stressed enough that
the fuel must be clean, fuel tanks must be free
from contaminants, and the fuel filter must be
changed regularly. Any time that the fuel system
is opened up, all possible precautions must be
taken to keep dirt from entering the system. This
means all fuel lines should be capped when open.
The work should be done in a relatively clean
area, if possible, and the work should be
completed in the shortest time possible.
1.
Thermostat Housing
2.
Gasket
3.
Thermostat
4.
Gasket
5.
Water Pump
Figure 127: Water Pump Assembly and Thermostat
1
2
3
4
5
Содержание SPECTRUM TS 30 SR NAD
Страница 4: ...4 ...
Страница 10: ...Table of Contents 10 ...
Страница 20: ...Safety Precautions 20 ...
Страница 51: ...Unit Description 51 Figure 19 Front View Figure 20 Back View AJA1350 AJA1500 ...
Страница 52: ...Unit Description 52 1 On Off Switch Figure 21 Side View 1 ...
Страница 60: ...Unit Description 60 ...
Страница 80: ...SPECTRUM TS Operation 80 ...
Страница 90: ...Electrical Maintenance 90 ...
Страница 100: ...Engine Maintenance 100 Figure 130 Early TK 3 95 Fuel and Oil System Components ...
Страница 102: ...Engine Maintenance 102 Figure 131 Late TK 3 95 Fuel and Oil System Components ...
Страница 104: ...Engine Maintenance 104 Figure 132 TK376 Fuel and Oil System Components ...
Страница 136: ...Refrigeration Maintenance 136 ...
Страница 156: ...Hilliard Clutch Maintenance 156 ...
Страница 158: ...Structural Maintenance 158 ...
Страница 168: ...Remote Evaporator Specifications 168 ...
Страница 170: ...Remote Evaporator Maintenance Inspection Schedule 170 ...
Страница 176: ...Remote Evaporator Electrical Maintenance 176 ...
Страница 180: ...Remote Evaporator Refrigeration Service Operations 180 ...
Страница 182: ...Remote Evaporator Structural Maintenance 182 ...
Страница 184: ...Remote Evaporator System Diagnosis 184 ...
Страница 188: ...Wiring and Schematic Diagrams Index 188 ...
Страница 189: ...189 Wiring Diagram Page 1 of 4 ...
Страница 190: ...190 Wiring Diagram Page 2 of 4 ...
Страница 191: ...191 Wiring Diagram Page 3 of 4 ...
Страница 192: ...192 Wiring Diagram Page 4 of 4 ...
Страница 193: ...193 Schematic Diagram Page 1 of 3 ...
Страница 194: ...194 Schematic Diagram Page 2 of 3 ...
Страница 195: ...195 Schematic Diagram Page 3 of 3 ...
Страница 196: ...196 ...