Northern Lights L944D, M944W, NL944D2, M30CW, M944T, NL944T2, and M38CR2 Operator'S Manual Download Page 14

14

OL944D  11/13

Servicing

LUBRICATION - GENERAL

1.  Use only clean, high quality lubricants        

 

 

stored in clean containers in a protected area.

2.  These lubricants are acceptable: 

 

a.  API Service CD, CE,  and CF-4 single viscosity  

 

     oils.

 

b.  API Service CD, CE, and CF-4 multi-viscosity oils.

3.  Use the proper weight oil for your average  

 

 

operation temperature.

 

 

Air 

      Single 

     Multi-

 

Temperature      Viscosity 

   Viscosity

 

Above 32° F     SAE 30W 

SAE 15-40W

 

     (0° C)

 

-10° to 32° F     SAE 10W 

SAE 10-30W

 

(-23° to 0° C)

Figure 5:  Lube Oils

4.  Never put additives or flushing oil in crankcase.

SP1.  CHECKING OIL LEVEL

1.  While the engine is stopped, check the oil  

level in the crankcase with the dipstick daily.  

The oil level must be between the high and low 

marks on the stick. Fill with the recommended 

oil, and fill only to the high mark on the dipstick. 

Follow the lubrication recommendations in 

Figure 5.

SP2.  OIL CHANGES

1.    The set is delivered with special break-in  

 

oil.  Change the engine oil and oil filter after  

 

50 hours of operation. Use Service CC30  

 

weight oil during the first 100 hours.

2.  Change the oil and filter again at 100 hours  

 

using the oil recommended in the above  

 

diagram. After this, change oil and filter  

 

every 250 hours.

3.  During intermittent cold weather operation,  

 

change oil every 100 hours or six weeks,  

 

whichever comes first.

4.  Change oil at any seasonal change in    

 

temperature when a new viscosity of oil  

 

is required.

5.  Change oil when engine is warm but not  

 hot.

6.  Dispose of waste oil in an approved manner.

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)

Summary of Contents for L944D, M944W, NL944D2, M30CW, M944T, NL944T2, and M38CR2

Page 1: ...OL944D For Model L944D 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 2013 Northern Lights Inc All rights reserve...

Page 3: ...AFETY RULES 5 COMPONENT LOCATIONS L944D 6 7 INSTRUMENT PANEL 8 OPERATING PROCEDURES Break in Period 9 Before Starting 9 Starting 10 Operating 10 Stopping 10 Alarms 10 11 Spare Parts 11 SERVICING SCHED...

Page 4: ...bout 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 unit p...

Page 5: ...ed only by knowledgeable qualified personnel Look completely around engine to make sure that everything is clear before starting Do not operate an engine that isn t in proper working order If an unsaf...

Page 6: ...nt Fill 3 Rocker Arm Cover 4 Fuel Filter 5 Relay Board Cover 6 Air Filter 7 Transmission Gear 8 Oil Pan 9 Lube Oil Dipstick 10 Oil Filter 11 Fuel Primer Pump 12 Injection Pump 13 Lube Oil Fill 14 Heat...

Page 7: ...nent Locations Figure 3 L944D Non Service Side 15 Wet Exhaust Elbow 16 Exhaust Manifold 17 Heat Exchanger 18 Raw Water Pump 19 PTO Housing 20 Belt Guard 25 Oil Pan 21 Alternator 22 Starter 15 16 13 1...

Page 8: ...running Turn the key counter clockwise as far as possible to stop the engine Note Optional flybridge panels have engine start switches instead of key switches 5 COVER Stop button not used for this ap...

Page 9: ...e sea cock check and clean the sea strainer and reopen the sea cock 5 Place the battery switch in the ON position NOTE The battery switch must always be kept ON while the engine is running If the swit...

Page 10: ...g the gauges could prevent damage to the unit and dangerous power losses Operating Procedures STARTING 1 Put the gear control in the neutral position 2 Move the throttle control to the full speed post...

Page 11: ...ecommended lubricating oil and restart Watch the oil pressure gauge carefully and shut off the engine if it does not show a normal reading 20 60 PSI after a few seconds of operation c If the oil level...

Page 12: ...n heat exchanger SP24 Inspect starter and alternator Servicing Schedule Chart SERVICE 50 100 250 500 2000 POINT PAGE OPERATION DAILY Hours Hours Hours Hours Hours ENGINE SP1 12 Check oil level SP2 12...

Page 13: ...r cleaner SP18 Check zinc electrodes EVERY 500 HOURS SP7 Check valve clearances SP8 Change primary filter element SP10 Change secondary fuel filter SP12 Check injectors SP15 Check cooling system SP17...

Page 14: ...oil and fill only to the high mark on the dipstick Follow the lubrication recommendations in Figure 5 SP2 OIL CHANGES 1 The set is delivered with special break in oil Change the engine oil and oil fil...

Page 15: ...ry 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 2 Remove the cover on the rear of the air intake...

Page 16: ...1 cylinder are loose at TDC If they are not rotate the crankshaft one complete turn Figure 6 Timing Mark 4 Measure the valve clearance for No 1 cylinder with a feeler gauge Standard valve clearances f...

Page 17: ...els e ASTM D975 60T No 4 D and higher number fuels 6 Storing fuel a Keep dirt scale water and other foreign matter out of fuel b Avoid storing fuel for long periods of time c Fill the fuel tank at the...

Page 18: ...with a cloth to prevent fuel from splashing b Turn the priming pump cap on the fuel feed pump counterclockwise to unlatch it Move the priming pump plunger 2 on Figure 8 up and down To close the pump...

Page 19: ...the injector f Remove the injector seat Cover the holes to prevent debris from entering the cylinders Note Do not use pry bars to remove injectors from the cylinder head 3 Injector repair and cleaning...

Page 20: ...lines as an assembly Do not remove the spacers Cover the ends of the lines the injector inlets and the injection pump outlets to keep dirt out of the injectors lines and pump c Align timing marks on t...

Page 21: ...ealing surface when the engine is cold b Soft water with about a pH about 6 5 to 8 5 combined with an antifreeze in a 30 to 50 maximum solution should be used Tap water should never be put in a coolin...

Page 22: ...3 Clean the inside of the housing 4 Press in the new impeller and place the sealing plug in the outer end of the impeller center if this has not already been done NOTE Make sure that there is always...

Page 23: ...to see if it emits sparks BOOSTER BATTERIES CAUTION Battery gas can explode Keep all flames and sparks away from batteries 1 Before changing or using booster batteries check the battery electrolyte le...

Page 24: ...with the mixture Start the engine and operate it with no load for 5 to 10 minutes Stop the engine spray rust preventative agent into intake pipe Drain the rust preventative oil and fuel 2 Drain fresh...

Page 25: ...g connection Low battery condition Check specific gravity of each battery Check electrolyte level of each battery Defective electrical system Repair or replace ground wire Starter Cranks Slowly Low ba...

Page 26: ...rmostat or Stalls Frequently Clogged primary Clean or replace filter element fuel filter element Clogged secondary Replace secondary filter element fuel filter element Water or dirt in the fuel system...

Page 27: ...stats Check water temperature to see if temperature gauge is working properly Faulty fuel injector Call your dealer Engine overheating See Engine Overheating section High Fuel Consumption Improper typ...

Page 28: ...ur dealer Injection nozzles dirty See your dealer Engine overloaded Reduce the electrical load Injection nozzles dirty See your dealer Injection pump faulty Consult your dealer Engine out of time See...

Page 29: ...Flow 16 gpm 61 lpm Seawater Pump Flow 16 gpm 61 lpm Maximum Seawater Pump Suction Head 39 in 990 mm Keel Cooler TurboTube Length 19 feet 0 48 M Keel Cooler Head Diameter 1 25 in 31 75 mm Keel Cooler W...

Page 30: ...30 OL944D 11 13 Northern Lights DC Wiring Diagram Model L944D 12 Volt Standard Ground Drawing C 6359 DC Wiring Diagram...

Page 31: ...OL944D 11 13 31 Northern Lights DC Wiring Diagram Model L944D 24 Volt Standard Ground Drawing C 6360 DC Wiring Diagram...

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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