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Summary of Contents for Northern Lights L944D
- Page 1 OL944D For Model: L944D 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 ©2013 Northern Lights, Inc. All rights reserved. Northern Lights™, and the Northern Lights logo are trademarks of Northern Lights, Inc. Printed in U.S.A. PART NO.: OL944D 11/13...
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Page 3: Table Of Contents
This publication is the property of Northern Lights, Inc. It may not be reproduced in whole or in part without the written permission of Northern Lights, Inc. © Northern Lights, Inc. All rights reserved. Litho U.S.A. Publication number OL944D 11/13... -
Page 4: Introduction
Northern Lights marine diesel generator set with L944D a 944 engine, naturally aspirated. Serial Numbers When referencing Northern Lights, Inc. equipment by serial number, please refer only to the number stamped on the Northern Lights or Lugger serial number plate. -
Page 5: Warranty
Warranty A warranty registration certificate is supplied with your NOTE: If the warranty is to apply, the servicing engine. It entitles the original purchaser of our instructions outlined in this manual must be followed. equipment to a warranty covering material or assembly If further information is needed, please contact an faults. -
Page 6: L944D
L944D Component Locations Figure 2: L944D Service Side Expansion Tank Oil Pan 14. Heat Exchanger Raw Water Coolant Fill Lube Oil Dipstick Drain and Zinc Rocker Arm Cover 10. Oil Filter 15. Thermostat Housing Fuel Filter 11. Fuel Primer Pump Relay Board Cover 12. -
Page 7: L944D
L944D Component Locations Figure 3: L944D Non-Service Side 15. Wet Exhaust Elbow 19. PTO Housing 16. Exhaust Manifold 20. Belt Guard 17. Heat Exchanger 25. Oil Pan 18. Raw Water Pump 21. Alternator 22. Starter OL944D 11/13... -
Page 8: Instrument Panel
Instrument Panel Figure 4: Lugger Main Instrument Control Panel 1. TACHOMETER 6. INSTRUMENT PANEL LIGHTING The tachometer shows the engine speed in revolutions The switch turns on the instrument panel lights. per minute. (RPM). Numbers are multiples of 100. 7. OIL PRESSURE FAULT LIGHT 2. -
Page 9: Operating Procedures
Operating Procedures BREAK-IN PERIOD BEFORE STARTING 1. The first 100 hours on a new or reconditioned 1. Check the water level by removing the pressure engine are critical to its life and performance. cap from the expansion tank. In order to give the cooling water an opportunity to expand, the level 2. -
Page 10: Starting
Operating Procedures STARTING 5. If the proper propeller is used, the engine should reach its appropriate maximum RPM’s at full throttle 1. Put the gear control in the neutral position. (2500 RPM). If the maximum rated RPM’s for your engine application are exceeded at full throttle, then 2. -
Page 11: Spare Parts
The parts are is above 205 F (97 C) shut the engine off available from your local Northern Lights dealer. immediately. Some marine models may already have “On-Board b. Use the Trouble Shooting Guide on page 25 to Kits,”... -
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 250 HOURS: Check oil level in engine SP2/3 Change engine oil and filter Check primary fuel filter... -
Page 13: Service Record
Service Record Service OPERATION HOURS/ DATE Point 50 HOURS Check V-belt tension SP19 Check electrolyte in batteries 250 HOURS Change engine oil Change lubricating oil filters Check air cleaner SP18 Check zinc electrodes EVERY 500 HOURS Check valve clearances Change primary filter element SP10 Change secondary fuel filter SP12... -
Page 14: Lubrication - General
7. Never use a flushing oil. 8. Loosen clamp on oil change tube. Remove cap. Drain oil. Replace cap and tube. 9. Refill engine with recommended oil. 10. Engine capacity with new oil filter is: Model L944D....2.64 gallons (10 liters) OL944D 11/13... -
Page 15: Changing Oil Filter
Stop engine, wait 3 minutes, and check oil level. Add additional oil if necessary. 7. Oil filter part number is: Model L944D........#24-01201 SP4. AIR CLEANER 1. Visually inspect air cleaner every 250 hours. In dusty conditions, check more often. -
Page 16: Valve Clearances
Servicing SP7. VALVE CLEARANCES 1. Readjust valve clearance after first 50 hours of opera- tion. Check valves every 500 hours thereafter. 2. Check the valves when the engine is cold. 3. Rotate the crankshaft in a clockwise direction, using a turning socket, from the front of the engine to bring the first piston to the top dead center on the compression stroke. -
Page 17: Fuels - General
1. Use only clean, high quality fuels of the following 1. Your Lugger engine has a fuel filter installed. We specifications, as defined by ASTM designation recommend the Northern Lights brand of fuel filters. D975 for diesel fuels: a. Check the primary fuel filter daily as a. -
Page 18: Bleeding The Fuel System
Servicing SP11. 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. -
Page 19: Injector Service
SP12. INJECTOR SERVICE 1. Injectors should be checked every 500 hours. This 3. Injector repair and cleaning: check should be made by a Northern Lights dealer a. Take injectors to your Northern Lights dealer or local injection repair station. or local injection repair station for testing and service. -
Page 20: Injection Pump
Clean and check injectors. e. Remove the 4 mounting nuts. f. Take the pump to your Northern Lights dealer or 3. Any repair which involves disassembly of the an injection pump repair station for testing and injection pump must be carried out by specially service. -
Page 21: Cooling System
revised 11-8-13 Servicing COOLING SYSTEM - GENERAL cooling water an opportunity to expand, the level should be about 1 in. (2.5 cm) below the filler cap NOTE: Be sure to close the sea-cock before working sealing surface when the engine is cold. on the engine cooling system. -
Page 22: Heat Exchanger
Servicing SP16. HEAT EXCHANGER SP18. ZINC ANODES 1. Clean the heat exchanger core once a year or after 1. A zinc anode is installed in the heat exchanger 2000 hours of operation. cooling system to protect the engine from electrolysis. Check it faithfully every 250 hours. If 2. -
Page 23: Electrical System - General
Servicing ELECTRICAL SYSTEM - GENERAL BOOSTER BATTERIES 1. Never switch the battery switch off or break the CAUTION: Battery gas can explode. Keep all flames and sparks away from batteries. circuit between the alternator and the batteries while the engine is running. Alternator damage can result. 1. -
Page 24: Battery Care
Servicing SP19-20. BATTERY CARE 6. Cover the terminals and openings of the 1. Check the electrolyte level every 50 hours, or once starter and alternator with adhesive fabric a month. Add distilled water to the manufacturer's tape. Cover the starter and alternator with recommended level. -
Page 25: 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. OL944D 11/13... -
Page 26: Engine
Troubleshooting ENGINE PROBLEM POSSIBLE CAUSE RECOMMENDATION(S) Engine Hard to Start Improper starting procedure • See starting section of this manual. or Will Not Start No fuel • Check level of fuel in fuel tank. Low battery condition • Check electrolyte level and condition. Excessive resistance •... - Page 27 • Fill crankcase to proper level. Improper type of oil • Drain and fill crankcase with correct oil. Partially plugged oil filter • Replace filter. If you cannot correct problems with these procedures, see your Northern Lights dealer. OL944D 11/13...
- Page 28 Troubleshooting ENGINE PROBLEM POSSIBLE CAUSE RECOMMENDATION(S) High Oil Consumption Break-in period • Oil consumption decreases after break in. Crankcase oil too light • Use proper viscosity oil. Oil leaks • Check for leaks in lines around gaskets and drain plug. Crankcase over full •...
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Page 29: Specifications
Added 5-27-09, updated 6-10-09 Specifications 65 Hp Hp/ RPM 2500 RPM General Information Engine Type Cylinders Inline 4 Displacement 203 in (3.33 liters) Cycles Bore x Stroke 3.7 x 4.72 in (94 x 120 mm) Rotation (Facing Flywheel) counter-clockwise Crankcase Capacity including Oil Filter 11 qts (10 liter) Aspiration Natural... -
Page 30: Wiring Diagrams Dc Electrical
DC Wiring Diagram OL944D 11/13... - Page 31 DC Wiring Diagram OL944D 11/13...
- Page 32 4420 14th Ave. NW., Seattle WA 98107 Tel: (206) 789-3880 • 1-800-762-0165 • www.northern-lights.com Northern Lights and Lugger are registered trademarks of Northern Lights, Inc. © 2013 All rights reserved. Litho USA.
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