Checking Fuel System - WACKER Group LTC 4 Repair Manual

Lombardini Engine Troubleshooting
5.6

Checking Fuel System

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WARNING
5.6.1
5.6.2
5.6.3
5.6.4
a
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Electric shock hazard. Only qualified personnel should conduct these
tests.
When troubleshooting Lombardini engines that crank but do not start,
make the following checks.
Check that the battery is in good condition and that all connections are
clean and tight. If the battery voltage falls below 11.5V, replace the
battery.
Fill the fuel tank with fresh fuel and check that the fuel hoses and fuel
filter are clean and in good condition.
Disconnect the fuel intake hose (a). Have a suitable container ready to
catch fuel. Place the keyswitch in the START position and check if fuel
flows from the hose.
• If fuel flows from the hose, reconnect the hose.
• If fuel does not flow from the hose, continue.
Disconnect the power lead (b) to the fuel solenoid. Place the keyswitch
in the START position and check for battery voltage between the lead
and ground.
• If battery voltage is not measured, check the continuity of wiring.
See the Lombardini repair manual for further information.
• If battery voltage is measured, check power to glow plugs.
b
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LTC Repair
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