TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
Page 572 of 1176
TM 9-2320-361-24-1 0061 00 0061 00-2 FUEL PUMP (IN-TANK) MAINTENANCE (Contd) TESTING FUEL PUMP PRESSURE WARNING Diesel fuel is flammable. Do not perform fuel system procedures near open flames. Injury or death to personnel may result. 1. Disconnect fuel supply tube (3) from fuel pump (4). 2. Connect adapter (1) and fuel pressure gauge (2) to fuel pump (4). CAUTION Do not start engine. Starting engine may damage fuel pressure gauge. 3. Turn accessory switch to ON position (TM 9-2320-361-10) to start fuel pump (4). 4. Read pressure on fuel pressure gauge (2). If pressure reads at least 4 psi (27.6 kPa), operation of fuel pump (4) is satisfactory. Turn accessory switch to OFF position (TM 9-2320-361-10) and remove fuel pressure gauge (2) and adapter (1) from fuel pump (4). 5. If fuel pressure gauge (2) reads no pressure, inspect electrical connections and, if necessary, continue with fuel pump replacement (4). 2 3 4 1