Thermo King SLXi Spectrum, Руководство по обслуживанию

Страница: 176 / 342

Engine Maintenance 9-20
7. Test the pull-in coil by momentarily placing a jumper between the 8DP circuit pin in the connector on the fuel solenoid and
terminal 2 at the fuse link. The fuel solenoid should make a definite click when the pull-in coil is energised and should click
again when the pull-in coil is de-energised.
NOTE: The pull-in coil may draw 35 to 45 amperes so do not leave the jumper connected to pin 8DP for more than a few
seconds.
a. If the pull-in coil does not energise, check the resistance of the pull-in coil by placing an ohmmeter between 8DP circuit
and the CH circuit in the connector on the fuel solenoid. 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.
NOTE: If the pull-in coil fails, make sure to replace the fuel solenoid relay with the correct relay (Potter-Brumfield relay on
older models). Refer to unit parts manual.
b.If the pull-in coil does energise, go to step 9.
8. Test the hold-in coil.
a. Energise the hold-in coil by placing a jumper between the 8D circuit in the connector to the fuel solenoid and terminal 2 at
the fuse link.
b.Momentarily energise the pull-in coil by placing a jumper between the 8DP circuit in the connector to the fuel solenoid and
terminal 2 at the fuse link. The fuel solenoid should make a definite click when the pull-in coil is energised, but should not
click when the pull-in coil is de-energised.
c. De-energise the hold-in coil by removing the jumper from the 8D circuit and terminal 2. The fuel solenoid should make a
definite click when the hold-in coil is de-energised.
d.If the hold-in coil does not function properly, check the resistance of the hold-in coil by placing an ohmmeter between the
8D circuit and the CH circuit in the connector to the fuel solenoid. 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.
e. If the hold-in coil does function properly, go to step 10.
9. Reconnect the main wire harness connector to the fuel solenoid connector.
10. Remove the fuel solenoid relay from its socket and make sure the unit On-Off switch is in the ON position.
11. Check the voltage on the 8D circuit at terminal 85 in the fuel solenoid relay socket.
a. If battery voltage is not present on the 8D circuit, check the 8D circuit and related components for a fault.
b.If battery voltage is present on the 8D circuit, go to step 13.
Relay Socket Terminal Identification – Engines with
Integral Fuel Solenoid
1. 87 Terminal/8DP Wire
2. 85 Terminal/8D Wire
3. 86 Terminal/8DC Wire
4. 30 Terminal/2A or 2B Wire