TM-9-2320-387-10 HMMWV Operator Manual Download
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TM 9-2320-387-10 3-l 1. FUEL FILTER MAINTENANCE WARNING Do not perform fuel system checks, inspection, or maintenance while smoking or near fire, flames, or sparks. Fuel may ignite, causing damage to vehicle and injury or death to personnel. a. Draining Fuel Filter. (1) Raise and secure hood (para. 3-9). (2) Start engine (para. 2-12). (3) Place toggle fuel switch (3) to the UP position and allow approximately 1 pt (0.47 L) of fuel to drain into a suitable container. (4) Place toggle fuel switch (3) to the DOWN position when draining is complete. (5) Stop engine (para. 2-14). (6) Lower and secure hood (para. 3-9). b. Purging Fuel System of Air. NOTE This procedure is used to purge fuel system of air if vehicle has run out of fuel. (1) Raise and secure hood (para. 3-9). (2) Disconnect fuel line (1) from fuel filter outlet (2). (3) Place a rag over fuel filter outlet (2). (4) Crank engine until rag is wet with fuel. (5) Connect fuel line (1) to fuel filter outlet (2). (6) Start engine (para. 2-12) and ensure fuel system has been purged of air. (7) Lower and secure hood (para. 3-9).