Maintenance Section
-207-
Water Separator (Diesel Engine
Only) - Check, Drain
4TNE98 & 4TNE94L Diesel Engine Only
NEVER wait until the scheduled periodic
maintenance if the fuel filter indicator comes on.
The fuel filter / water separator contains a sensor to
detect the amount of water and contaminants. This
sensor sends a signal to an indicator to alert the
operator.
Drain the fuel filter / water separator as follows:
1. Position an approved container under the fuel
filter / water separator (Figure 5-1, (1)) to
collect the contaminants.
2. Loosen the drain cock (Figure 5-1, (2)) at the
bottom of the fuel filter / water separator. Drain
any water collected inside.
3. Hand tighten the drain cock.
4. Be sure to prime the diesel fuel system when
you are done. See Priming the Fuel System.
Figure 5-1
Test Fuel System for Leaks(LP and Dual Fuel
Engines Only)
1. Obtain a leak check squirt bottle or pump spray
bottle.
2. Fill the bottle with an approved leak check
solution.
3. Spray a generous amount of the solution on the
fuel system fuel lines and connections, starting
at the storage container.
4. Wait approximately 15-60 seconds then
perform a visual inspection of the fuel system.
Leaks will cause the solution to bubble.
5. Repair any leaks before continuing.
6. Crank the engine through several revolutions.
This will energize the fuel lock-off and allow fuel
to flow to the pressure regulator/converter.
Apply additional leak check solution to the
regulator/converter fuel connections and
housing. Repeat leak inspection as listed
above.
7. Repair any fuel leaks before continuing.
WARNING
Prior to any service or maintenance activity,
Test Fuel System for Leaks.
Check
Points
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