Northern Lights Lugger M773LW3 Operator's Manual
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Northern Lights Lugger M773LW3 Operator's Manual

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OM773LW3
For Model: M773LW3
OPERATOR'S MANUAL
Marine Generators | Marine Diesel Engines | Land-Based Generators

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Summary of Contents for Northern Lights Lugger M773LW3

  • Page 1 OM773LW3 For Model: M773LW3 OPERATOR’S MANUAL Marine Generators | Marine Diesel Engines | Land-Based Generators...
  • Page 2 4420 14th Avenue N.W. Seattle, WA 98107 Tel: (206) 789-3880 Fax: (206) 782-5455 Copyright ©2008 Alaska Diesel Electric, Inc. All rights reserved. Northern Lights™, and the Northern Lights logo are trademarks of Alaska Diesel Electric, Inc. Printed in U.S.A. PART NO.: OM773LW3 01/08...

  • Page 3: Table Of Contents

    Cooling System - General ........ 19 Cooling System Flushing ......... 20 PANELS Heat Exchanger ..........20 Northern Lights Generator Sets ....8 - 9 Raw Water Pump ..........20 Generator Ends ..........20 OPERATINg PROcEdURES Electrical System - General ......20 Break-in Period ..........

  • Page 4: Introduction

    Model numbers give the unit’s application, block model, aspiration, and RPM Model numbers give the unit's application, block model, aspiration, and RPM: L, W, 3 Model number of engine block L - Long stroke M - Northern Lights marine generator set Bore Cylinders W - New Winding in 77 mm...

  • Page 5: Warranty

    Warranty A warranty registration certificate is supplied NOTE: If the warranty is to apply, the servicing with your set. It entitles the original purchaser of instructions outlined in this manual must be our equipment to a warranty covering material followed. If further information is needed, please or assembly faults.

  • Page 6: Component Locations M77Lw Marine Generators

    Marine generator component Locations Figure 1 & 2: M773LW with PX-309K2 generator 1. Generator Control Box 8. Fuel Injector 15. Block Drain 21. AC Circuit Breaker for 26. Starter 2. Air Filter 9. Stop Solenoid 16. Fuel Inlet and Return 27.

  • Page 7: M77Lw Marine Generators

    Marine generator component Locations Figure 3 & 4: M773LW3 with PX-309K2 generator end. 1. Generator Control Box 13. Seawater Pump 7. Fuel Injector 20. Heat Exchanger End 2. DC Circuit Breaker 14. Fuel Inlet and Return 8. Coolant Fill 3. Coolant Recovery 15.

  • Page 8: Northern Lights Generator Sets

    control Panels 1. ShUTdOWN byPASS-PREhEAT SWITch There are two functions built into this switch: 1. Preheats the fuel before beginning the starting process. Press switch 10-20 seconds before attempting start-up. 2. Bypasses the safety shutdown feature during starting process. Keep switch engaged while starting engine and for 2 to  seconds afterwards, allowing oil pressure to build beyond shutdown set point.
  • Page 9 control Panels 1. ShUTdOWN byPASS SWITch Manual Start Panels (S-7.1 and S-7.3) Hold the switch in the START position until the engine is running. NOTE: Excessive cranking may cause engine damage. After the engine starts, release the switch and it will return to the RUN position.

  • Page 10: Operating Procedures

    Operating Procedures STARTINg bREAK-IN PERIOd 1. Hold the Shutdown Bypass-Preheat switch in the 1. The first 100 hours on a new or reconditioned engine are critical to its life and performance. ON position for 10 to 20 seconds before starting a cold engine.

  • Page 11: Shutdowns And Alarms

    The parts are oil pressure. available from your local Northern Lights dealer. a. Other alarms and shutdowns are available as Marine models have optional “On-Board-Kits,” a optional equipment.

  • Page 12: Servicing Schedule Chart

    Servicing Schedule chart The Servicing Schedule Chart below shows the service schedule required for proper maintenance of your generator set. More detailed coverage of each Service Point (SP) is listed on the page noted in the ‘page’ column. dAILy: EvERy 500 hOURS: Check oil level in engine Change engine oil filter Check V-belt tension...
  • Page 13 Service Record Service OPERATION hOURS/dATE Point daily Check V-belt tension SP8 &12 Check oil level SP7 Check primary filter SP13 Check cooling water level 250 hOURS SP2 Change engine oil and filter Check air cleaner SP18 Check electrolyte in batteries SP19 Check condition of batteries with hydrometer EvERy 500 hOURS SP3 Change lubricating oil filters...

  • Page 14: Servicing

    Servicing LUbRIcATION - gENERAL SP2. OIL chANgES 1. Use only clean, high quality lubricants stored in 1. The set is delivered with special break-in oil. clean containers in a protected area. Change the engine oil and oil filter after 50 hours 2.

  • Page 15: Servicing ( Continued )

    Replace if necessary. Part numbers are: cold and NOT running. M773LW3 – #24-28602 . To bring the No. 1 cylinder to top dead center in the compression stroke, align the timing mark; the top . NOTe: Make absolutely sure no impurities enter mark of the crank pulley with that of the timing gear the engine while changing the element.

  • Page 16: Fuels - General

    Servicing fUELS - gENERAL SP7-9. fUEL fILTERS 1. Use only clean, high quality fuels of the following 1. Your generator set should have a primary fuel filter specifications, as defined by ASTM designation installed. We recommend the Racor brand of fuel D7 for diesel fuels: filter-water separators.

  • Page 17: Bleeding The Fuel System

    Servicing SP10. bLEEdINg ThE fUEL SySTEM CAUTION: escaping diesel fuel under pressure can penetrate skin causing serious personal injury. Before disconnecting lines be sure to relieve all pressure. Before applying pressure, be sure all connections are tight and lines, pipes and hoses aren't damaged. Fuel escaping from a very small hole can be almost invisible.
  • Page 18 Servicing Figure 12: Remove delivery line flare nuts. Figure 16: Unscrew injector. Figure 13: Remove delivery lines. Figure 17: Remove and replace copper sealing washer. Figure 14: Remove return line nuts. Figure 18: Reinstall injector. torque to proper tightness. Figure 15: Remove return line. OM773LW3 01/08...

  • Page 19: Injector Service

    1. Injectors should be checked every 00 hours. Check 1. Since operating conditions may vary considerably, it should be made by a Northern Lights dealer or local is difficult to give a definite interval for checking the injection repair station.

  • Page 20: Cooling System Flushing

    Owner’s Manual. If you do not have one of these manuals, contact your SP15. hEAT EXchANgER local Northern Lights dealer. 1. Clean the heat exchanger core once a year or after ELEcTRIcAL SySTEM - gENERAL 200 hours of operation.

  • Page 21: Glow Plugs

    Servicing gLOW PLUgS SP 18-19. bATTERy cARE 1. Each cylinder is supplied with a glow plug which 1. Check electrolyte level every 0 hours or once per serves to heat the combustion chamber. month. Add distilled water to manufacturer’s 2. To check the glow plugs, loosen the current recommended level.

  • Page 22: Troubleshooting

    Faulty connection • Clean and tighten battery and harness plug connections. Sulfated or worn out batteries • Check specific gravity and electrolyte level of each battery. If you cannot correct problems with these procedures, see your Northern Lights dealer. OM773LW3 01/08...

  • Page 23: Engine

    Troubleshooting ENgINE PRObLEM POSSIbLE cAUSE REcOMMENdATION(S) Engine hard to Start Improper starting procedure • See starting section of this manual. Take or Will Not Start special note of Bypass Switch operation. No fuel • Check level of fuel in fuel tank. Low battery output •...
  • Page 24 Engine overloaded • Check load usage. Engine not at proper temperature • Check your thermostats. • Check water temperature with thermometer and replace gauge if necessary. If you cannot correct problems with these procedures, see your Northern Lights dealer. OM773LW3 01/08...
  • Page 25 Cold engine • Warm up engine to normal operating temperature. Defective thermostat • Remove and check thermostat. Engine out of time • See your dealer. If you cannot correct problems with these procedures, see your Northern Lights dealer. OM773LW3 01/08...

  • Page 26: Wiring Diagrams

    Wiring diagrams OM773LW3 01/08...

  • Page 27: Dc Electrical

    Wiring diagrams OM773LW3 01/08...
  • Page 28 Wiring diagrams OM773LW3 01/08...
  • Page 29 Wiring diagrams OM773LW3 01/08...
  • Page 30 Wiring diagrams OM773LW3 01/08...

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