HomeNorthern LightsNorthern Lights M984K

Northern Lights M984K Generator Set

The Northern Lights M984K is a 33 kW diesel standby generator set. It is available at 120 V, 120/208 V, 120/240 V and 277/480 V, single/three-phase and 60 Hz. The set measures 1386×520×777 mm (54.6×20.5×30.6 in) and weighs about 553 kg (1219 lb).

33 kW
Standby
3
Document types

Specifications

Fueldiesel
Frequency60.0 Hz
Standby power33 kW
Prime power32 kW
Voltage options120 V, 240 V, 120/208 V, 120/240 V, 277/480 V
Phasesingle/three
Dimensions (L×W×H)1386×520×777 mm
Dry weight553 kg

Maintenance & consumables

ItemSpecCapacityPart #Interval
Air filter100 hr find
Fuel filter24-50012200 hr Amazon eBay $18.95
Fuel filtersecondary24-50002200 hr Amazon eBay $34.85
Oil filter24-05401100 hr Amazon eBay $33.15
Belt50 hr find
Coolantantifreeze mixture600 hr
Oil9.0 l100 hr

Common questions

What is the power rating of the Northern Lights M984K?

The Northern Lights M984K is rated 33 kW standby.

What fuel does the Northern Lights M984K use?

The Northern Lights M984K runs on diesel.

Troubleshooting

14

Symptoms & remedies

SymptomCauseRemedy
Engine Runs Irregularly or Stalls FrequentlyBelow normal engine temperature Clogged primary fuel filter element Clogged secondary fuel filter element Water or dirt in the fuel system Dirty or faulty injection nozzles Air in fuel system Improper type of fuelRemove and check thermostat. Clean or replace filter element. Replace secondary filter element. Drain, flush, fill and bleed system. Inspect clamps and hoses on suction side of fuel pump for air leak. Consult fuel supplier and use proper type of fuel for operating condition.
Lack of Engine PowerEngine overloaded Intake air restriction Clogged primary fuel filter element Clogged secondary fuel filter element Improper type of fuel Overheated engine Below normal engine temperature Improper valve clearance Dirty or faulty injection nozzlesReduce the load. Service air cleaner. Clean or replace filter element. Replace filter element. Consult fuel supplier and use proper type of fuel for operating conditions. See “Engine Overheats” in next category. Remove and check thermostat. Reset valves. Best done by dealer. See your local dealer.
Engine OverheatsEngine overloaded Low coolant level Keel cooling tubes (marine sets) have been painted Cooling system needs flushing Defective thermostat Defective temperature gauge Water pump impeller worn or brokenReduce the electrical load. Fill tank or radiator to proper level. Check hoses for loose connections and leaks. Remove paint from tubes. Flush cooling system. Remove and check thermostat. Check water temperature with thermometer and replace gauge if necessary. Check the impeller and replace if necessary.
Engine KnocksInsufficient oil Injection pump out of time Below normal engine temperature Faulty fuel injector Engine overheatingCall your dealer. Call your dealer. Check your thermostats. Check water temperature to see if temperature gauge is working properly. See “Engine Overheating” section.
High Fuel ConsumptionImproper type of fuel Clogged or dirty air cleaner Engine overloaded Improper valve clearance Injection nozzles dirty Injection pump out of time Engine not at proper temperatureUse correct fuel for temperature. Service air cleaner. Reduce the electrical load. See your dealer. See your dealer. See your dealer. Check your thermostats. Check water temperature with thermometer and replace gauge if necessary.
Below Normal Engine TemperatureThermostats not working properly Temperature gauge not working properlyCheck thermostats. Check water temperature with thermometer.
Low Oil PressureLow oil level Improper type of oil Partially plugged oil filterFill crankcase to proper level. Drain and fill crankcase with correct oil. Replace filter.
High Oil ConsumptionBreak-in period Crankcase oil too light Oil leaks Crankcase over fullOil consumption decreases after break in. Use proper viscosity oil. Check for leaks in lines around gaskets and drain plug. Remove excess oil.
Engine Emits Black or Gray Exhaust SmokeClogged or dirty air cleaner Defective muffler (back pressure too high) Improper fuel Engine overloaded Injection nozzles dirty Engine out of timeService air cleaner. Have dealer check back pressure. Use correct fuel for temperature. Reduce the electrical load. See your dealer. See your dealer.
Engine Emits White SmokeImproper fuel Cold engine Defective thermostat Engine out of timeUse correct fuel for temperature. Warm up engine to normal operating temperature. Remove and check thermostat. See your dealer.
Battery Will Not ChargeLoose or corroded connections, Sulfated or worn out batteries, Loose or defective alternator beltClean and tighten battery connections. Check specific gravity of each battery. Check electrolyte level of each battery. Adjust belt tension. Replace belt.
Starter InoperativeCheck DC circuit breaker, Loose or corroded connections, Low battery condition, Defective electrical system ground wireIf the breaker is tripped, reset it. Clean and tighten loose battery and harness plug connection. Check specific gravity of each battery. Check electrolyte level of each battery. Repair or replace.
Starter Cranks SlowlyLow battery condition, Check specific gravity of each battery, Check electrolyte level of each battery, Crankcase oil too heavy, Battery is too small, Battery cables are too smallIf low, fill cells with distilled water. Fill with oil of appropriate viscosity. Clean and tighten loose connections.
Entire Electrical System Does Not FunctionCheck DC circuit breaker, Faulty connection, Sulfated or worn out batteriesIf breaker is tripped, reset it. Clean and tighten battery and harness plug connections. Check specific gravity and electrolyte level of each battery.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

5
Part #DescriptionQtySystem
24-05401Oil filterOil filter Amazon eBay $33.15
24-50002Primary fuel filterFuel filter Amazon eBay $34.85
24-50012Primary fuel filterFuel filter Amazon eBay $18.95
24-52020Secondary fuel filterFuel filter Amazon eBay $24.71
05-78700Sound Enclosure Panel1Service part / kit buy

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
8.72.3
50%5.31.4
100%9.82.6

Available documents

Spec sheetOwner's manualParts manual