TM-9-2350-277-40&P Sustainment Maintenance Manual M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TEST AND INSPECTION FUEL FLOW TEST 1. Connect fuel control valve (Figure 4, Item 15) to coolant heater fuel hose (Figure 4, Item 16). Fuel pressure must be three to 15 psi (21 to 103 kPa), when fuel valve is open. 2. Place fuel control valve outlet over calibrated (Figure 4, Item 18) and overflow (Figure 4, Item 19) containers. 3. Make sure the body of fuel control valve (Figure 4, Item 15) is grounded. 4. Energize fuel control valve solenoids. Connect two solenoid leads (Figure 4, Item 17) and (Figure 4, Item 21) to a 24 volts DC power source (Figure 4, Item 20). Solenoids are now open for high heat fuel flow. WARNING Sparks from static electricity could cause a fire or explosion. Make sure to ground the coolant heater before you open fuel supply valve. 5. Open coolant heater fuel supply valve (WP 0024). Bleed fuel hose in a suitable container. 6. After fuel flow is stable, place calibrated cubic centimeter container under fuel control valve (Figure 4, Item 15). 7. Allow fuel to flow for exactly one minute then close coolant heater fuel supply valve. Container should contain 14 ± 2 cubic centimeters of fuel. 8. Repeat Step 1 - Step 7 with shutoff solenoid side lead (Figure 4, Item 21) only of fuel control valve (Figure 4, Item 15) energized with 24 volts DC power source (Figure 4, Item 20). 9. Calibrated cubic centimeter container (Figure 4, Item 18) should now contain 8.5 ± 2 cubic centimeters of fuel. Figure 4. Fuel Control Valve Flow Test. TM 9-2350-277-40&P 0026 0026‐3