Thermo King SPECTRUM TS 30 SR NAD, Руководство пользователя

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Engine Maintenance
107
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).
Injection Pump Timing
TK 3.95 Engine
There are two different types of timing procedures
used on the TK 3.95 engine. One procedure
involves checking to make sure the cylinders are
timed correctly to each other, and the other
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.