Northern Lights Lugger 0844K Operator'S Manual Download Page 10

O844K  10/09

8

bREAK-IN PERIOd

1.  The first 100 hours on a new or reconditioned 

  engine are critical to its life and performance.

2.  Frequently check the engine temperature and oil 

pressure gauges (sets with Series 3 or 4 panels). 

3.  Oil consumption is greater during break-in as 

  piston rings take time to seat.

4.  Break-In Oil Changes:  Change engine oil and 

  filter at 50 hours. Change oil and filter again at 

  100 hours (consult Lubricants section for oil recom-

mendation).

Operating Instructions:

  Maintain at least a 75% load on your generator 

  set for the first 100 hours. If this is not possible, 

maintain no less than a 50% load to ensure proper 

seating of the piston rings. Vary the load to help 

  seat the rings.

bEfORE STARTINg

1.  Check the water level by removing the pressure

  cap from the expansion tank or radiator. In order to 

give the cooling water an opportunity to expand, the 

level should be about 1 in. (2.5 cm) below the filler 

cap sealing surface when the engine is cold.

CAUTIoN:  Use protective clothing and open the 

filler cap carefully when the engine is warm to 

prevent burns.

2.  Check the oil level in the crankcase with the dip-

stick. The oil level must be in the waffled area on the 

stick. Never allow the level to go below this area. 

Always add the same viscosity of oil as is already in 

the crankcase. 

3.  Check the fuel tank level and open any fuel valves.

4.  Marine Sets: close the sea-cock; check, clean, and 

reassemble the sea strainer and re-open the sea-cock.

5.  Marine Sets: place the battery switch in the ON posi-

tion.

6.

  NoTe:  The battery switch must always be kept

  oN while the engine is running. If the switch is 

turned oFF while the engine is running, the bat-

tery charging regulator could be ruined.

STARTINg

1.  Hold the Shutdown 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 warm.

2.  While holding the Shutdown Bypass-Preheat switch 

in the ON position, push the Engine Control switch 

to the START position.

3.  As soon as the engine starts, release both switches. Do 

not crank the starter for more than 20 seconds consecu-

tively. If the engine fails to start with the first attempt, 

be sure that it has stopped completely before re-engag-

ing.

6. 

NoTe:  excessive cranking of the starter on Marine 

sets equipped with a water lift muffler can cause 

engine damage. If the engine does not start after three 

20-second cranks, remove the impeller from the raw 

water pump. This will prevent the muffler from filling 

with water and backfilling the exhaust line and engine. 

once the engine starts, shut it off immediately and

  re-install the impeller. Re-start the engine and check 

the exhaust overboard outlet for gushes of water.

OPERATINg

1.  Units with Series 3 and Series 4 Control Panels: 

  check gauges often. Oil pressure must be above 15 

PSI. The D.C. voltmeter should read between 11 

and 15 volts at 80°F (25°C) ambient temperature. 

The water temperature gauge on Marine sets must 

be below 200°F (94°C). Check the A.C. voltage 

and frequency meters (Series 4 panel). If the gauges 

deviate from normal levels, shut down the generator 

set and investigate.

2.  Let the unit run unloaded for a three to five minute 

warm-up period.

3.  Apply electrical load.

STOPPINg

1.  Remove electrical load from the generator set.

2.  Run the engine for a 3 to 5 minute cool down period.

3.  Hold the Engine Control switch to the STOP posi-

tion until the engine comes to a complete stop.

4.  Marine Sets: shut off the seacock, fuel valve, and 

battery switch. 

Operating Procedures

Summary of Contents for Lugger 0844K

Page 1: ...O844K For Models M844K M844LK M20CL and M20CR 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 reserve...

Page 3: ...Marine Generators 5 CONTROL Panels Northern Lights Generator Sets 6 Operating Procedures Break in Period 8 Before Starting 8 Starting 8 Operating 8 Stopping 8 Shutdowns and Alarms 9 Spare Parts 9 Serv...

Page 4: ...DED This manual covers the operating instructions for M844k marine generator sets M844Lk marine generator sets and M20CL commercial generator sets Note There are two versions of the 844 engine The sta...

Page 5: ...Keep trash and other objects away from engine Escaping fluids under pressure can penetrate your skin Use a piece of cardboard or wood not your hands to search for leaks Avoid wearing loose clothing w...

Page 6: ...e 16 Crankcase Vent 17 Fuel Injector 18 Oil Fill Top 19 Fresh Water Pump 20 Injection Pump 21 Oil Fill Side 22 Raw Water Inlet 23 Oil Pressure Sender 24 Freshwater Block Drain 25 Fuel Return Line 26 F...

Page 7: ...el Inlet 22 Lube Oil Drain 23 Control Panel Plug in 24 Generator End 25 DC Circuit Breaker 26 Secondary Fuel Filter 27 Fuel Lift Pump 28 Fuel Return Line 29 Crankcase Vent 30 Oil Fill Top Figure 3A an...

Page 8: ...t will return to RUN position To stop the engine hold the switch in the STOP position until the engine has com pletely stopped Note The rocker switch is used on Series 1 panels only and has a light th...

Page 9: ...O844K 10 09 7 Notes...

Page 10: ...ould be ruined starting 1 Hold the Shutdown 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 ste...

Page 11: ...perature 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 crankca...

Page 12: ...ntenance once a year even if hour level has not been reached 2 Consult manufacturer s maintenance schedule note on chart 3 Whenever necessary 4 More often if necessary 5 After first 50 hours then at 1...

Page 13: ...O844K 10 09 Service Record Notes 11...

Page 14: ...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 an app...

Page 15: ...CLEARANCES 1 Adjust valve clearance after first 50 hours of opera tion and every 1000 hours thereafter 2 Valve adjustments should be done after the cylinder head bolts have been re tightened Engine sh...

Page 16: ...ntamination d If biological contamination is detected or suspected contact your dealer for assistance SP7 9 FUEL FILTERS Figure 9 Primary Fuel Filter 1 Your generator set should have a primary fuel fi...

Page 17: ...System 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 oth...

Page 18: ...ery lines Figure 13 Cover lines inlets and injection pump outlets Figure 15 Remove return line Figure 16 Unscrew injector Figure 17 Remove and replace copper sealing washer Figure 18 Reinstall injecto...

Page 19: ...nd check for leaks using a piece of paper or cardboard DO NOT use hand to check for leaks SP12 Injection pump 1 Since operating conditions may vary considerably it is difficult to give a definite inte...

Page 20: ...ou remove all 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 excha...

Page 21: ...urer 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 be ch...

Page 22: ...lug 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 bat...

Page 23: ...ature 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 Water...

Page 24: ...g section High Fuel Consumption Improper type of fuel Use correct fuel for temperature Clogged or dirty air cleaner Service air cleaner Improper valve clearance See your dealer Injection nozzles dirty...

Page 25: ...e too high Improper fuel Use correct fuel for temperature Injection nozzles dirty See your dealer Engine timing off See your dealer Engine Emits Improper fuel Use correct fuel for temperature White Sm...

Page 26: ...uction Head 39 in 990 mm 39 in 990 mm Keel Cooler TurboTube Length 4 feet 1 2 M 4 feet 1 2 M Keel Cooler Head Diameter 1 in 25 4 mm 1 in 25 4 mm Keel Cooler Water Hose ID 1 25 in 31 5 mm 1 25 in 31 5...

Page 27: ...uction Head 39 in 990 mm 39 in 990 mm Keel Cooler Turbo Tube Length 5 feet 1 5 M 5 feet 1 5 M Keel Cooler Head Diameter 1 in 25 4 mm 1 in 25 4 mm Keel Cooler Water Hose ID 1 25 in 31 5 mm 1 25 in 31 5...

Page 28: ...ad 39 in 990 mm 39 in 990 mm Keel Cooler Turbo Tube Length 5 feet 1 5 M 5 feet 1 5 M D C Electrical Minimum Battery Capacity 120 Amp Hour 120 Amp Hour Battery Cable Size 1 1 Starting Voltage Negative...

Page 29: ...O844K 10 09 27 Wiring Diagrams Engine Wiring Schematic 12V DC Drawing B 7998...

Page 30: ...O844K 10 09 Notes 28...

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