Thermo King T-1080S, Руководство по обслуживанию

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Engine Maintenance
110
pin C) in the fuel solenoid connector. The
resistance of the pull-in coil should be 0.2
to 0.3 ohms. If the resistance of the pull-in
coil is not in this range, replace the fuel
solenoid.
b. If the pull-in coil does energize, go to
step 9.
9. Test the hold-in coil.
a. Energize the hold-in coil by placing a
jumper between the red wire (8D—pin A)
in the fuel solenoid connector and the
positive battery terminal.
b. Momentarily energize the pull-in coil by
placing a jumper between the white wire
(8DP—pin B) in the fuel solenoid
connector and the positive battery
terminal. The fuel solenoid should make a
definite click when the pull-in coil is
energized, but should not click when the
pull-in coil is de-energized.
c. De-energize the hold-in coil by removing
the jumper from the red wire (8D—pin A)
and the positive battery terminal. The fuel
solenoid should make a definite click
when the hold-in coil is de-energized.
d. If the hold-in coil does not function
properly, check the resistance of the
hold-in coil by placing an ohmmeter
between the red wire (8D—pin A) and the
black wire (CH—pin C) in the fuel
solenoid connector. The resistance of the
hold-in coil should be 24 to 29 ohms. If
the resistance of the hold-in coil is not in
this range, replace the fuel solenoid.
Fuel Solenoid Replacement
1. Disconnect the fuel solenoid wire connector
from the main wire harness and remove the
old fuel solenoid.
2. Connect the new fuel solenoid wire connector
to the main wire harness.
3. Press the
O
N
key to turn the unit on.
4. Use the Mechanics/Premium HMI Control
Panel to enter the Interface Board Test Mode.
Refer to the appropriate Microprocessor
Diagnostic Manual for specific information
about the Relay Test Mode.
5. Energize the fuel solenoid by energizing the
run relay with the Interface Board Test Mode.
NOTE: The fuel solenoid must be energized
when it is installed. If not, the plunger and
the linkage may not line up correctly and the
fuel solenoid will not function properly.
6. Place the O-ring in the groove in the end of
the fuel injection pump. Make sure that the
O-ring is positioned correctly during
installation to avoid damage and leaks.
7. Install the new fuel solenoid.
8. Press the
O
FF
key to turn the unit off after
installing the fuel solenoid.
Engine Speed Adjustments
When the diesel engine fails to maintain the
correct engine speed, check the following before
adjusting the speed:
1. Check the electric fuel pump filter. Recheck
the speed.
2. Check the operation of the electric fuel pump.
3. Bleed the air out of the fuel system. Recheck
the speed.
1. Fuel Solenoid
2. O-ring
3. Groove in Fuel Injection Pump
Figure 195: Fuel Solenoid Components
AEA635