TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 3 Download
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TM 9-2320-280-20-3 11-195. HEATER FUEL SYSTEM BLEEDING This task covers: Bleeding INITIAL SETUP: Applicable Models Manual References M997, M997A1, M997A2 TM 9-2320-280-24P Tools Equipment Condition General mechanic’s tool kit: Blower housing open (para. 11-198). automotive (Appendix B, Item 1) General Safety Instructions Materials/Parts Do not perform this procedure near fire, flames, or Sealing compound (Appendix C, Item 45) sparks. Personnel Required One mechanic One assistant WARNING Diesel fuel is highly flammable. Do not perform this procedure near fire, flames, or sparks. Severe injury or death will result. NOTE Q Have drainage container ready to catch fuel. Q Apply compound to threads of all fuel line joints before 1. Disconnect heater fuel line (4) from heater (3). 2. Place end of fuel line (4) in drainage container. 3. Place heater rotary switch (1) on control box (2) to “RUN” position. Hold switch (1) in ‘RUN” position until fuel flows free of air bubbles. 4. Place switch (1) to “OFF” position. 5. Connect fuel line (4) to heater (3). 11-288