OM843NW2
For Model: M843NW2
OPERATOR’S MANUAL
Marine Generators | Marine Diesel Engines | Land-Based Generators
Page 1: ...OM843NW2 For Model M843NW2 OPERATOR S MANUAL Marine Generators Marine Diesel Engines Land Based Generators...
Page 2: ...other reproductive harm CALIFORNIA Proposition 65 Warning Northern Lights 4420 14th Avenue N W Seattle WA 98107 Tel 206 789 3880 Fax 206 782 5455 Copyright 2009 Northern Lights Inc All rights reserved...
Page 3: ...PONENT LOCATIONS M843NW2 Marine Generator 6 CONTROL PANELS 7 OPERATING PROCEDURES Break in Period 8 Before Starting 8 Starting 8 Operating 8 Stopping 8 Shutdowns and Alarms 9 Spare Parts 9 SERVICING S...
Page 4: ...earn about your equipment and its proper maintenance This is not a comprehensive technical service manual Nor will it make the reader into an expert mechanic Its aim is to aid you in maintaining your...
Page 5: ...ng adjustments Operate engines in properly ventilated areas Keep trash and other objects away from engine Escaping fluids under pressure can penetrate your skin Use a piece of cardboard or wood not yo...
Page 6: ...cations 16 Oil Filter 17 Oil Drain 18 Generator Set Plate 19 Control Panel Plug in 20 Fuel Lift Pump 21 Heat Exchanger End Cap 22 Coolant Fill Figure 1 and 2 M843NW2 9 Belt Guard 10 Injection Pump 11...
Page 7: ...it will return to RUN position To stop the engine hold the switch in the STOP position until the engine has completely stopped NOTE The rocker switch is used on Series 1 panels only and has a light th...
Page 8: ...Bypass Preheat switch in the ON position for 10 to 20 seconds before starting a cold engine Holding the switch too long can burn out the glow plugs This step is not necessary if the engine is already...
Page 9: ...mperature rises above 205 F 96 C on Marine units Repeat troubleshooting 3 If shutdown is activated and the temperature gauge shows temperature within normal temperature range a Check the engine crankc...
Page 10: ...necessary 4 More often if necessary 5 After first 50 hours then after 100 hours then at every 250 hours Servicing Schedule Chart SERVICE 50 250 500 1000 2500 POINT PAGE OPERATION DAILY Hours Hours Ho...
Page 11: ...OM843NW2 10 09 11 Service Record Notes...
Page 12: ...ration change oil every 100 hours or six weeks whichever comes first 4 Change oil at the end of each season and the begin ning of each season 5 Change oil when engine is warm 6 Dispose of waste oil in...
Page 13: ...learance after 1000 hours or as needed 2 Valve adjustments should be done after the cylinder head bolts have been re tightened Engine should be cold and NOT running 3 Watch the valves while turning th...
Page 14: ...he end of each day s operation This will reduce condensation and possible biological contamination d If biological contamination is detected or suspected contact your dealer for assistance SP7 9 FUEL...
Page 15: ...ystem 1 The fuel system is self bleeding However any system may need manual bleeding when a A new fuel filter is installed b The engine has run out of fuel c The fuel lines injection pump or any other...
Page 16: ...delivery lines Figure 12 Cover lines inlets and injection pump outlets Figure 14 Remove return line Figure 15 Unscrew injector Figure 16 Remove and replace copper sealing washer Figure 17 Reinstall in...
Page 17: ...Install delivery lines Leave loose at injectors for bleeding e Crank engine to fill lines Tighten lines at injectors to 11 18 ft lbs Start engine and check for leaks using a piece of paper or cardboa...
Page 18: ...pieces of failed impeller NOTE Place some kind of protection under the screwdrivers in order not to damage the pump housing If the impeller has broken into pieces remove front heat exchanger end cover...
Page 19: ...ufacturer charging and booster instructions SP 18 19 BATTERY CARE 1 Check electrolyte level daily Add distilled water to manufacturer s recommended level 2 Batteries cables and cable terminals should...
Page 20: ...plug connection Low battery output Check specific gravity of each battery Check electrolyte level of each battery Defective electrical system Repair or replace ground wire Starter Cranks Slowly Low b...
Page 21: ...Runs Irregularly Below normal engine temperature Remove and check thermostat or Stalls Frequently Clogged primary Clean or replace filter element fuel filter element Clogged secondary Replace seconda...
Page 22: ...ystem Defective thermostat Remove and check thermostat Defective temperature gauge Check water temperature with thermometer and replace gauge if necessary Water pump impeller worn broken Check impelle...
Page 23: ...proper level Improper type of oil Drain and fill crankcase with correct oil Partially plugged oil filter Replace filter Check bearings oil pump and relief valve for wear High Oil Consumption Break in...
Page 24: ...OM843NW2 10 09 24 Wiring Diagrams AC Wiring Diagram M843NW2 for 12 4 lead generators with AVR DST 100 2FAK Drawing B 8280E...
Page 25: ...OM843NW2 10 09 25 Wiring Diagrams DC Wiring Diagram M 843NW M843NW2 12 Volt Standard Ground Drawing B 8393B...
Page 26: ...ern lights com 4420 14th Ave NW Seattle WA 98107 Tel 206 789 3880 1 800 762 0165 Fax 206 782 5455 Northern Lights and Lugger are registered trademarks of Northern Lights Inc 2009 All rights reserved L...
