Thermo King T-1000R, Maintenance Manual

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Engine Maintenance 9-19
Draining Water from Fuel Tank
Water run through the system may damage the injection pump or nozzles. Damage to the fuel system will subsequently cause
more expensive damage to the engine. A large accumulation of water in the bottom of the fuel tank will stop a diesel engine.
Water should be drained off during scheduled maintenance inspections to prevent breakdowns. Drain the water off after the fuel
tank and unit have remained idle for an hour.
1. Place a container under the fuel tank to catch the draining water and fuel.
2. Remove the drain plug from the bottom of the fuel tank.
NOTE: Some fuel tanks have a check valve in the drain plug fitting. Push the check valve open with
a small screw driver to drain the tank.
3. Let the water and fuel drain into the container until no water is visible in the fuel draining from the tank. If the water and fuel
do not drain freely, the vent may be plugged. If so, clean or replace the vent.
4. Install the drain plug.
Fuel Filter Replacement
Replace the fuel filter at intervals according to the Maintenance Inspection Schedule.
1. Remove the filter and discard.
2. Lubricate rubber ring of new filter with fuel.
3. Install the filter and tighten until the filter is slightly loose (rubber ring not making contact).
4. Bleed the air from the filter by operating the electric pump until fuel bubbles appear at the top of filter.
5. Tighten the filter until the rubber ring makes contact, then tighten 1/2 turn more.
Electric Fuel Pump
Operation
The electric fuel pump must be mounted next to the fuel tank. This pump is designed to push rather than pull fuel.
Make sure the harness plug black wire pin completes a good ground with the battery. Check the voltage at the red wire pin of
the harness plug. The pump will not operate at less than 9 Vdc. The pump is self priming as long as it is not higher than 30 in.
(762 mm) from the fuel in the fuel tank.
Maintenance
The fuel pump filter should be cleaned whenever the oil is changed. The filter and gasket are replaceable but the pump cannot
be repaired. It must be replaced if it is defective.
Disassembly
1. Unscrew and remove the fuel filter bowl.
2. Unscrew the fuel filter.
3. Wash the fuel filter in cleaning solvent and blow out the dirt and cleaning solvent with compressed air.
4. Clean the fuel filter bowl.
5. Check the fuel filter bowl gasket and replace if necessary.
1. HEAD - filter 13. HOSE - fuel (3/8 x 35 ft)
2. SPUD - filter 14. JOINT - fuel
3. SHAFT - water bleed 15. JOINT - fuel
4. FILTER - fuel 16. PUMP - fuel injection
5. HOSE - fuel (1/4 od x 35 ft lg) 17. PUMP - fuel (12V)
6. ELBOW - hose (1/4) 18. HARNESS - fuel pump
7. KIT - sleeve & eyelet (1/4) 19. WRENCH - fuel bowl
8. NUT (1/4) 20. CLAMP - hose (1/4 x 1/4)
9. ELBOW - hose (3/8) 21. CLAMP - hose (1/4 x 3/8)
10. KIT - sleeve & eyelet (3/8) 22. GROMMET
11. NUT (3/8) 23. TUBE - fuel pickup
12. FITTING 3/8
UT-Series Fuel System Components