
TM 10-3930-660-10
0003 00-1
THEORY OF OPERATION 0003 00
INTRODUCTION
This work package explains how components of the 6K forklift work together. A functional description is given for the fuel
system, engine lubrication system, engine cooling system, steering and brake system, electrical system, and hydraulic system.
FUEL SYSTEM
1. Fuel/Water Separator
. Removes moisture from fuel. (Not shown, located ahead of the engine on the right side of frame).
2. Fuel Filter
. Removes larger particles from the fuel before it reaches the injector pump.
3. Fuel Transfer Pump
. Pulls fuel from the fuel tank through the fuel/water separator, and sends it through the fuel filters to
the fuel injection pump.
4. Fuel Injection Pump
. Sends exact amount of fuel to the injector nozzles.
5. Fuel Injector Nozzle
. Turns the stream of fuel into a fine spray which permits good combustion in the cylinder. There is
one nozzle for each cylinder.
409-1722
PRIMARY
FUEL FILTER
SECONDARY
FUEL FILTER
FUEL TRANSFER PUMP
FUEL INJECTION PUMP
FUEL
INJECTOR
NOZZLE
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