TM 55-1930-209-14&P-110-9.3 Workboat operationsa.Cast off from barge, ensuring that mooring lines are secured and not creating a safety hazard on deck or in thewater.b.At idle speed, maneuver away from barge.c.For long distance or long periods of operation, cruising maximum speed is about 200 rpm below maximumattainable rpm. Set throttle for maximum power and allow boat to reach its maximum rpm. Then, reduce rpms -to 200 below the maximum rpm.CAUTIONSNever shift to reverse when boat Is planing.If accidentally running In very shallow water, shift engine to neutral and raiseoutboard drive to full TILT position to preclude damage to drive. Power cannot beapplied to drive while in TILT position.NOTESDepending on load and sea conditions, normal cruising should range betweenapprox. 2600 rpm (where boat may fall off plane) and a maximum cruise of approx.3300 rpm. These parameters, based on use of a 16 Inch dia meter propeller with 19inch pitch, may change when a different propeller Is fitted.Reverse can be engaged while in TRIM or BEACH range of the trim plane gauge.d.Monitor engine instruments for proper readings. Coolant temperature should be 165 to 195F. Make sure coolingwater is flowing overboard.e.Adjust outboard drive by using power trim switch to maintain best running conditions. This will show on the trimgauge within the TRIM range.f.When running in shallow water or water of unknown depth, adjust outboard drive into BEACH range. Reduceengine speed to very low or idle speed, push IN button on trim control on dashboard, and push toggle switch UPto adjust drive as indicated on trim gauge. This must be done ONLY when engine is at low speed or idle. Oncein BEACH range, engage either forward or reverse and increase speed. With this setting, propeller will notdevelop as much thrust.10-10 Emergency procedures10-10.1 General.The two most dangerous situations for small boats are to have a fire onboard or accidentally runaground under power. This assumes that good judgment and knowledge of weather and sea conditions would precludebeing capsized or swamped in heavy seas.10-10.2 Fire prevention.The best firefighting technique on the workboat is to prevent a fire from starting. This requiresstrict compliance with preventive measures such as:a.Keep engine compartment clean and free of debris, rags, oil, and fuel spills.b.Keep bilges dean and pumped out.c.Clean any fuel oil or lubricating oil spills immediately.d.No smoking in cabin.e.Keep fuel lines and filters tight to preclude seepage and leaks.10-17
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