TM-9-2320-386-24-1-2 Page 82

TM-9-2320-386-24-1-2 Unit Maintenance Manual Part 2 for M44A3 Series Trucks

Page 82 of 636

0298 00-2 TM 9-2320-386-24-1-2 0298 00 STARTING REPAIRED OR REPLACED ENGINE (Contd) PRIMING LUBRICATION SYSTEM CAUTION Engine lubrication system cannot be primed through bypass filter. Insufficient lubrication will result, causing damage to engine. 1. Remove pipe plug (3) from oil manifold orifice (4) on main oil manifold (2) on left side of engine (1). 2. Connect oil priming pump hose to oil manifold orifice (4). 3. Pump oil into main oil manifold (2) under pressure of 30-40 psi (207-276 kPa). CAUTION Do not crank engine continuously for more than thirty seconds. Wait two to five minutes before repeating procedure. Failure to do so may result in damage to starter motor. 4. Engage fuel shutoff switch and crank engine (TM 9-2320-386-10) for fifteen seconds while maintaining 35 psi (241 kPa) pump pressure. 5. Apply sealant to male threads of pipe plug (3). 6. Remove oil priming pump hose and replace pipe plug (3) on main oil manifold orifice (4). 7. Check oil level (TM 9-2320-386-10). IN-CHASSIS RUN-IN 1. Inspect oil and coolant levels (TM 9-2320-386-10). WARNING Ensure engine compartment is free of all tools and work materials before starting engine. Failure to do so may result in injury to personnel. CAUTION If any leaks, abnormal noises, or sudden oil pressure drop is observed, stop engine immediately and correct as necessary. 2. Crank engine at cranking speed until oil pressure is observed on gauge.