ONL843NW4
For Model: NL843NW4
OPERATOR’S MANUAL
Marine Generators | Marine Diesel Engines | Land-Based Generators
Page 1: ...ONL843NW4 For Model NL843NW4 OPERATOR S MANUAL Marine Generators Marine Diesel Engines Land Based Generators...
Page 2: ...13 As of January 2008 U S EPA regulations require the application of a permanently applied label near the fuel tank fill port for diesel driven equipment This label is to state LOW OR ULTRA LOW SULFU...
Page 3: ...ATIONS NL843NW3 Industrial Generator 8 CONTROL PANELS Northern Lights Generator Sets 9 OPERATING PROCEDURES Break in Period 10 Before Starting 10 Starting 10 Operating 10 Stopping 10 Shutdowns and Ala...
Page 4: ...your unit properly N W MODELS INCLUDED This manual covers the operating instructions for NL843NW4 industrial generator set Fill in the model number of your unit in the blank space provided This will...
Page 5: ...ION warning to outline potential dangers of a specific nature CAUTION indicates the presence of a potential hazard that can or will cause severe or minor property damage personal injury or death Follo...
Page 6: ...noise can cause hearing loss or impairment Wear suitable authorized hearing protection such as earmuffs or plugs to protect against loud noises Operating equipment requires the full attention of the...
Page 7: ...s and cause blindness if splashed into eyes To Avoid Hazards Fill batteries only in well ventilated areas Wear appropriate eye protection and rubber gloves Never use air pressure to clean batteries We...
Page 8: ...AUTHORIZED TECHNICIANS CAN PERFORM REPAIRS ON AN HIGH PRESSURE FUEL INJECTION SYSTEMS Contact your Northern Lights dealer or Northern Lights factory for MSDS s used on Northern Lights products Work in...
Page 9: ...Hot Exhaust Avoid exposure to and physical contact with hot exhaust gases Exhaust parts and streams can reach high temperatures during operation leading to burns or other serious injury Cleaning exhau...
Page 10: ...Shutdown Solenoid 12 Oil Pressure Sender 13 Oil Dipstick 14 Block Drain 15 Fuel Lift Pump 16 Fuel Inlet Line 17 Fuel Return Line 18 Oil Filter 19 Fuel Filter Figure 2A and 2B NL843NW4 Industrial Gene...
Page 11: ...press the switch in the STOP position and release The engine will stop NOTE The rocker switch is used on Series 1 panels only and has a light that glows when the set is running 3 HOUR METER Keeps tra...
Page 12: ...il as is already in the crankcase 3 Check the fuel tank level and open any fuel valves 4 NOTE The battery switch must always be kept ON while the engine is running If the switch is turned OFF while th...
Page 13: ...200 F 94 C e Watch the temperature gauge regularly and turn off the unit if the temperature rises above 205 F 96 C Repeat troubleshooting 3 If shutdown is activated and the temperature gauge shows tem...
Page 14: ...note on chart 3 Whenever necessary 4 More often if necessary 5 After first 50 hours then after first 100 hours then every 200 hours Servicing Schedule Chart SERVICE 50 200 500 1000 2500 POINT PAGE OPE...
Page 15: ...ONL843NW4 11 13 13 Service Record Notes...
Page 16: ...peration change oil every 100 hours or six weeks whichever comes first 4 Change oil at the end of each season and the beginning of each season 5 Change oil when engine is warm 6 Dispose of waste oil i...
Page 17: ...t SP6 VALVE CLEARANCES 1 Adjust valve clearance after the first and then at 1000 hours or as needed 2 Engine should be cold and NOT running 3 Watch the valves while turning the engine over by hand Tur...
Page 18: ...ifications A 2 reduction in power and a 3 reduction in fuel economy can be expected if a 20 blend is used With a 20 biodiesel blend an approved fuel conditioner is recommended The petroleum part of th...
Page 19: ...llustration purposes 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 pu...
Page 20: ...es 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 injector Torque to proper tightness...
Page 21: ...eeding 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 cardboard DO NOT use hand to check for leaks SP12 INJECTION PU...
Page 22: ...reeze mixture is recommended as a good year round coolant 4 Check hoses and connections and repair any leakage SP15 CLEAN RADIATOR 1 Remove debris from radiator fins daily 2 In very dusty applications...
Page 23: ...ean corrosion with a water and baking soda solution Flush with clean water Tighten terminals and grease them to inhibit corrosion 3 Check the battery condition with a hydrometer every 250 hours SP21 W...
Page 24: ...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 25: ...erature Remove and check thermostat or Stalls Frequently Clogged primary Clean or replace filter element fuel filter element Clogged secondary Replace secondary filter element fuel filter element Wate...
Page 26: ...el for temperature Clogged or dirty air cleaner Service air cleaner Improper valve clearance See your dealer Injection nozzles dirty See your dealer Injection pump out of time See your dealer Engine n...
Page 27: ...high Improper fuel Use correct fuel for temperature Injection nozzles dirty See your dealer Engine injectors timing off See your dealer Engine Emits Improper fuel Use correct fuel for temperature Whi...
Page 28: ...e 3 3 x 3 54 in 84 x 90 mm Rotation Facing Flywheel counter clockwise Compression Ratio 22 1 Crankcase Capacity including Oil Filter 5 5 liter 5 8 quarts Aspiration Natural Rated Horsepower 20 Hp Appr...
Page 29: ...ONL843NW4 11 13 27 Wiring Diagram AC Wiring Diagram 12 4 Lead Generators DST 100 2FAK AVR B 9724C Revised 2 1 12...
Page 30: ...ONL843NW4 11 13 28 Wiring Diagram AC Wiring Diagram 12 4 Lead Generators DST 100 2FAK AVR B 9723A Added 2 1 12...
Page 31: ...ONL843NW4 11 13 29 DC Wiring Diagram 12 V DC Standard Ground B 10021 Wiring Diagram Revised 2 1 12...
Page 32: ...ONL843NW4 11 13 30 DC Wiring Diagram 12 V DC Standard Ground w S 1B A 3170 Wiring Diagram Added 2 1 12...
Page 33: ...ONL843NW4 11 13 31 DC Wiring Diagram 12 V DC Standard Ground w S 3C A 12572B Wiring Diagram Added 2 1 12...
Page 34: ...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 2013 All rights reserved L...
