Thermo King SLXi Spectrum, Руководство по обслуживанию

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Engine Maintenance 9-14
Maintenance
The fuel system is relatively trouble-free and if correctly maintained will usually not require major service repairs between engine
overhauls.
Contamination is the most common cause of fuel system problems. Therefore, to ensure best operating results, the fuel must be
clean and fuel tanks must be free of contaminants. Change the fuel filters regularly. On TK 482, TK 486 and TK 486V engines,
clean the fuel strainer on the inlet side of the transfer pump at each injection.
NOTE: The injection nozzles should be tested every 9,000 when only clean fuel is used and the fuel system is maintained
according to the Maintenance Inspection Schedule. Refer to the appropriate Engine Overhaul Manual for injection nozzle
testing and repair.
NOTE: Use only diesel fuel that conforms to EN590 standard.
Whenever the fuel system is opened, take the following precautions to prevent dirt from entering the system:
• Cap all fuel lines.
• Work in a relatively clean area whenever possible.
• Complete the work in the shortest possible time.
Any major injection pump or nozzle repairs should be done by a quality diesel injection service shop. The necessary service
equipment and facilities are not found in most engine rebuild shops because of the large investment required.
The following procedures can be done under field conditions:
• Bleeding air from the fuel system
• Fuel tank and filter system maintenance.
• Prime pump (hand) replacement or repair ( TK 482, TK 486 and TK 486V engines)*
• Transfer pump replacement or repair ( TK 482, TK 486 and TK 486V engines)*
• Injection line replacement*
• Pump and governor adjustments ( TK 482, TK 486 and TK 486V engines)*
• Pump timing
• Nozzle spray pattern testing and adjustment*
• Minor rebuilding of nozzles*
*TK 482, TK 486 and TK 486V Overhaul Manual TK 8312.
Bleeding the Fuel System
The fuel system must have the air bled out if the fuel tank becomes empty, if repairs are made to the fuel system, or if air gets
into the system for any other reason.
NOTE: MAKE SURE to keep the fuel tank vent open. If the vent becomes clogged, a partial vacuum develops in the tank. This
increases the tendency for air to enter the system.
TK482, TK486 and TK 486V Engines
1. Loosen the bleed screw at the injection pump about one turn.
2. Unscrew the hand pump handle and manually prime the fuel system until air bubbles are no longer visible in the fuel coming
out of the bleed screw.
3. Tighten the bleed screw and screw the hand pump handle back in.
4. TK 482, TK 486 and TK 486V Only:
a. Loosen the injection lines at the injection nozzles.
b.Crank the engine until fuel appears at the nozzles.
c. Tighten the injection line.
5. Start the engine and observe engine operation for a few minutes. If the engine fails to start, or starts but stops in a few minutes,
repeat the procedure