Engine Maintenance
69
Reassembly
Place the cover gasket on the bottom cover and
install the filter and cover assembly. Replace the
three screws.
If pump does not operate, check for:
1. The ground to the frame of the unit.
2. Clean and tighten electrical connections.
3. The pump voltage and polarity. It must be the
same as the unit system.
If pump operates but does not deliver fuel,
check for:
1. Air leaks in the fuel lines or connections.
2. Kinked fuel lines or other restrictions in the
line.
3. A leaking or distorted cover gasket.
4. A dirty filter.
5. A stuck seat in the outlet fitting.
Injection Pump
Injection Pump Adjustments
When the diesel engine fails to maintain the
correct engine speed, check the following before
adjusting the speed:
1. Check the prefilter screen. Recheck the speed.
2. Bleed air out of the fuel system. Recheck the
speed.
3. Bleed air out of the nozzles. Recheck the
speed.
4. Operation of electric transfer pump.
Make the engine speed adjustments with the
engine fully warmed up.
The unit has one solenoid to control the high
speed function. The speed of the engine should be
checked with the use of a stroboscope tachometer
(see Tool Catalog).
Timing the Injection Pump to the Engine
There are two different types of timing procedures
used on the engine. One procedure involves
checking to make sure the cylinders are timed
correctly to each other, and the second procedure
times the injection pump correctly to the engine.
If the cylinders are not timed correctly to each
other, it is of no value to time the injection pump
to the engine because one or two of the three
cylinders would be out of time. The individual
plungers in the injection pump are timed to each
other by the use of spacers in the pump plunger
base. It is rare that an injection pump would
change individual cylinder timing unless it had
been through some type of repair process, but if
all other possible problems with a rough running
engine have been checked, and especially if the
engine’s injection pump has been replaced or
repaired recently, it may be beneficial to check
individual cylinder timing. Because the possibility
of incorrect individual cylinder timing is so
minimal, the procedure for timing the pump to the
engine will be covered first. The procedure for
individual cylinder timing is very similar to
timing the injection pump so it will be covered
last.
CAUTION: The cylinders on the engine
are numbered from the flywheel end to the
water pump end. The number 1 cylinder is
next to the flywheel. The number 2
cylinder is the center cylinder. The
number 3 cylinder is next to the water
pump. The timing marks on the flywheel
are matched to this system.
Содержание 919180
Страница 4: ...4...
Страница 10: ...Table of Contents 10...
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...
Страница 142: ...142 Truck S Model SR 30 Schematic Diagram Page 2 of 2...
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...