MAINTENANCE - TM-5-3820-256-24-2

Section 6 - Maintenance - TM-5-3820-256-24-2_38

TM-5-3820-256-24-2 Drilling System Well Rotary Truck Mounted Air Transportable 600 Feet Capacity Model LP-12NSN3820-01-245-4276 Manual
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4-9.3 Air Venting the Fuel System. a. Loosen thumb screw and slide retaining spring off hand primer on fuel pump mounted to base on left side of engine. b. Loosen bleed screw in banjo connector at injection pump. c. Hand prime the injection pump until fuel free of bubbles emerges. d. Lock primer pump and tighten bleed screw. e. Start the engine. If the engine does not run properly, loosen the bleed screw until air is completely vented from fuel line. Tighten bleed screw. IMPORTANT If the engine still does not run properly, loosen injection line at injector, crank engine until fuel free of bubbles emerges at injector; tighten injection line. 4-9.4 Air Cleaner Service. - The air cleaner is one of the most important parts of the engine from the standpoint of engine life. An engine consumes several thousand cubic feet of air per hour when operating. If dirty air gets into the engine, it can wear out a set of piston rings within a few operating hours. CAUTION DIRTY AIR can damage engine. Do not operate engine with dirty air cleaner. Do not operate engine without air cleaner in plate. 4-9.5 Electrical System. 4-9.5.1 Cables and Wiring. Check interconnecting wiring and connections for tightness and flaws. Ensure that the weld output cable connections are clean and tight. Check the insulation for breaks or other signs of damage. Repair or replace cables or wiring as necessary. 4-9.5.2 Battery. WARNING BATTERY ACID can burn eyes and skin and destroy clothing and other materials. Wear correct eye and body protection. a. Periodically inspect the battery for loose connections, defective cables, corrosion, cracked case or cover, loose holddowns, and loose or deformed terminal posts. 4-23

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