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ONL773LW3 11/13

Servicing

2. Here are acceptable water quality specifications:

3. If chlorides, sulfates or total dissolved solids are

higher than the above given specification, the water

must be distilled, demineralized, or

deionized before it is used in a cooling system.

4. If total hardness is higher than 170 ppm and all other

parameters are within the given

specifications, the water must be softened before it is

used to make coolant solution.

SP13. CHECK THE COOLANT LEVEL

1. Check the coolant level each day before starting the

engine. Check the water level by removing the pres-

sure cap from the 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.

2. The pressure valve in the filler cap releases when the

pressure is approximately 7 PSI (0.5 bar). Use a cap

pressure tester to check cap if you suspect it is faulty.

SP14. COOLING SYSTEM FLUSHING

1. Flush the cooling system every 2500 hours or every

12 months, whichever comes first.

2. Industrial sets:

Remove radiator cap and open drain cocks on radiator

and engine block. Pour clean water into radiator until

water coming from radiator is clear of discoloration.

Close the radiator drain and continue flushing until

water from engine drain is clear. Open all drain cocks

and drain completely. Close drain cock and refill with

recommended coolant mixture. Clean fins on radiator.

3. Coolant Specifications:

Use 50% water / 50% ethylene glycol antifreeze

mix. Antifreeze mixture is recommended as a good

year-round coolant.

4. Check hoses and connections and repair any leakage.

SP16. CLEAN RADIATOR

1. Remove debris from radiator fins daily.

2. In very dusty applications, clean the radiator with

compressed air or steam cleaner every 100 hours.

Clean in the reverse direction of the airflow.

ELECTRICAL SYSTEM - GENERAL

1. Never switch battery switch off or break the circuit

between the alternator and batteries while the engine

is running. Regulator damage can result.

2. Do NOT reverse the polarity of battery cables when

installing the battery.

3. When welding on the unit, disconnect the regulator

and battery. Isolate the leads.

4. Disconnect the battery cables when servicing the

D.C. alternator.

5. Never test with a screwdriver, etc., against any

terminal to see if it emits sparks.

6. Do not polarize the alternator or regulator.

7. A D.C. circuit breaker protects your control panel

and wiring harness. It is located in the side of the

generator junction box.

Parts Grains

Contaminates

per Million per Gallon

Maximum Chlorides

2.5

Maximum Sulfates

100

5.9

Maximum Dissolved Solids

340

20.0

Maximum Total Hardness

170

10.0

PH Level 5.5 to 9.0

revised 11-8-13

Содержание NL773LW3

Страница 1: ...ONL773LW3 For Model NL773LW3 OPERATOR S MANUAL Marine Generators Marine Diesel Engines Land Based Generators...

Страница 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...

Страница 3: ...SERVICING Lubrication General 14 Checking Oil 14 Oil Changes 14 Changing Oil Filter 14 Air Filter 15 V Belts 15 Valve Clearances 15 Fuels General 16 Fuel Filters 16 Bleeding the Fuel System 17 Inject...

Страница 4: ...chanic Its aim is to aid you in maintaining your unit properly Introduction W NL Northern Lights industrial generator set Model number of engine block Bore Cylinders 77 mm 3 Serial Numbers MODELS INCL...

Страница 5: ...signs in good and clean condition Replace missing or damaged signs Be sure new equipment components and repair parts include the current safety signs For replacement signs proper placement of safety s...

Страница 6: ...all moving parts have stopped before making any adjustments connections or performing any other type of service to the engine or other driven equipment Prevent accidental discharge of starting fluids...

Страница 7: ...trolyte is poisonous and strong enough to burn skin eat holes into clothing and other materials and cause blindness if splashed into eyes To Avoid Hazards Fill batteries only in well ventilated areas...

Страница 8: ...d Dispose of paint and solvent properly Service Cooling System Safely WARNING Opening a pressurized cooling system can release explosive fluids and causing serious burns Before opening any pressurized...

Страница 9: ...water source components between the high pressure fuel pump and nozzles on engines with high pressure fuel systems ONLY AUTHORIZED TECHNICIANS CAN PERFORM REPAIRS ON AN HIGH PRESSURE FUEL INJECTION S...

Страница 10: ...t be achieved at the local supply valve shut off valves further back in the system and re check the bleed off point until complete shut off is achieved Affix a DO NOT OPERATE tag to each valve handle...

Страница 11: ...Alternator 17 Radiator Shroud 1 Junction Box 2 Air Filter 3 Crankcase Vent 4 Lube Oil Fill 5 Coolant Fill 6 Injection Pump Figures 2 A and B NL773LW3 7 Fuel Lift Pump 8 Dipstick 9 Fuel Inlet and Retur...

Страница 12: ...switch ON for too long can burn out the glow plugs NOTE Three position Engine Control switches must be in the RUN position during preheating Preheat switch must be held in ON position during starting...

Страница 13: ...any fuel valves 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 battery charging regulator could be ruined STARTI...

Страница 14: ...ses above 230 F 110 C on Industrial sets Repeat trouble shooting 3 If shutdown is activated and the temperature gauge shows temperature within normal temperature range a Check the engine crankcase oil...

Страница 15: ...engine SP5 Check V belt tension SP7 Check primary fuel filter SP13 Check coolant level SP18 Check electrolyte in batteries AFTER FIRST 50 HOURS SP2 3 Change engine oil and filter SP6 Adjust valves AF...

Страница 16: ...tion 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 6 Dispose...

Страница 17: ...e cylinder head bolts have been re tightened Engine should be cold and NOT running 3 Watch the valves while turning the engine over by hand Turn until the inlet valve starts to open and the exhaust va...

Страница 18: ...commended The petroleum part of the biodiesel blend must meet ASTM D975 or EN590 EU specifications Biodiesel blends must be used within 90 days of their manufacture When biodiesel blends are used the...

Страница 19: ...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 other fuel system component has been removed and installe...

Страница 20: ...lines Figure 9 Remove return line nuts Figure 10 Remove return line Figure 11 Unscrew injector Figure 12 Remove and replace copper sealing washer Figure 13 Reinstall injector Torque to proper tightne...

Страница 21: ...rs for bleeding e Pump hand level on fuel pump to fill lines Tighten lines at injectors Start engine and check for leaks using a piece of paper or cardboard DO NOT use hand to check for leaks SP12 INJ...

Страница 22: ...in and continue flushing until water from engine drain is clear Open all drain cocks and drain completely Close drain cock and refill with recommended coolant mixture Clean fins on radiator 3 Coolant...

Страница 23: ...SP 18 19 BATTERY CARE 1 Check electrolyte level every 50 hours or once per month Add distilled water to manufacturer s recommended level 2 Batteries cables and cable terminals should be checked and cl...

Страница 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...

Страница 25: ...eck injection nozzles Uneven compression pressure Check cylinder compression pressure between cylinders Engine Runs Irregularly Below normal engine temperature Remove and check thermostat or Stalls Fr...

Страница 26: ...Flush cooling system Defective thermostat Remove and check thermostat Defective temperature gauge Check water temperature with thermometer and replace gauge if necessary Water pump impeller worn brok...

Страница 27: ...n Replace governor spring Low Oil Pressure Low oil level Fill crankcase to proper level Improper type of oil Drain and fill crankcase with correct oil Partially plugged oil filter Replace filter Check...

Страница 28: ...ONL773LW3 11 13 26 Wiring Diagrams DC Standard Ground Engine Wiring Diagram Drawing B 9852 Wiring diagrams are subject to change without notice Revised 2 1 12...

Страница 29: ...L773LW3 11 13 27 Wiring Diagrams 12 Volt DC Standard Ground Engine Wiring Diagram For Northern Lights NL773LW3 with S 1B Drawing A 3170 Wiring diagrams are subject to change without notice Added 2 1 1...

Страница 30: ...L773LW3 11 13 28 Wiring Diagrams 12 Volt DC Standard Ground Engine Wiring Diagram For Northern Lights NL773LW3 with S 3C Drawing A12572B Wiring diagrams are subject to change without notice Added 2 1...

Страница 31: ...ONL773LW3 11 13 29 AC Engine Wiring Diagram For Northern Lights NL773LW3 Drawing B 9724C Wiring diagrams are subject to change without notice Wiring Diagrams Revised 2 1 12...

Страница 32: ...ONL773LW3 11 13 30 AC Engine Wiring Diagram For Northern Lights NL773LW3 Drawing B 9723A Wiring diagrams are subject to change without notice Wiring Diagrams Added 2 1 12...

Страница 33: ......

Страница 34: ...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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