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Magnum MMG330 Super Start Generator Set

The Magnum MMG330 Super Start is a 294 kW (367 kVA) Diesel standby generator set powered by a John Deere PE609HFG95 engine. It is available at 208 V and 480 V, 3-phase and 60 Hz. It holds 70.9 L (18.7 gal) of coolant. Starting uses 2 group-31 batteries rated 1000 CCA at 12 V. The set weighs about 4539 kg (10007 lb). An integrated tank holds 1738 L (459.1 gal), roughly 23 hours of runtime. The same PE609HFG95 engine also powers generator sets from Generac.

294 kW
Standby
9.0 L
Displacement
1
Document types

Typical fuel consumption for 290–295 kW Diesel generators →

Compare with other 290–295 kW Diesel generators →

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power294 kW
Standby kVA367
Prime power263 kW
ControllerMagnum Digital (MDC)
AlternatorMarathon 433PSL6220
Voltage options208 V, 480 V
Phase3
Power factor0.8 (3Ø)
Circuit breaker1200 A
Battery groupGroup 31
Battery cranking1000 CCA
Battery voltage12V V
Battery quantity2
Coolant capacity70.9 L
Dry weight4539 kg
Wet weight6109 kg
Fuel tank1738.0 L
Tank runtime23 hr

Engine

John Deere PE609HFG95
Coolant capacity70.9 L
Displacement9.0 L
Rated speed1800 rpm

Same engine, other brands

1 brand

The John Deere PE609HFG95 in this set also powers 1 generator set sold under 1 other brand. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.

BrandModels
GeneracMMG330DI4

Maintenance & consumables

for the John Deere PE609HFG95
ItemSpecCapacityPart #Interval
Air filter—500 hr
Fuel filter—
Oil filter—
Battery—
Belt—500 hr
Coolant75.0—
Coolant filter—
Oil—500 hr
Spark plug—

Service intervals

7
ItemActionHoursMonthsNotes
Engine maintenance/service reminder (MDC "WrnMaintenance")Other250 hrMagnum Digital Controller default service reminder interval; reset to 250 hours after servicing
Engine oil and oil filterChange500 hrFirst service — Subsequent changes every 500 hours when using John Deere Plus-50 II oil or equivalent; every 250 hours otherwise
Fan/serpentine beltInspect500 hr12 moRemove and check for wear; inspect pulleys and bearings while removed
Primary air cleaner elementReplace500 hrOr when dust valve restriction indicator gauge shows a vacuum of 25 in. H2O, whichever comes first
Exhaust filter (DPF) ash removalOther3000 hrExpected service interval at least 3000 or 4500 hours based on engine power and operating conditions; actual service when indicator light appears
Trailer wheel bearing lubricationLubricate12 moMinimum recommended lubrication is every 12 months or 12,000 miles (19,312 km)
Trailer wheel lug nutsAdjustFirst service — Re-torque lug nuts in sequence after the first road use

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Service specifications

11
TypeItemValueUnitCondition
OtherAir Filter Restriction Indicator (filter minder gauge)20in. H2Oreplace air filter when yellow center bar reaches red section
OtherLow Fuel Level Shutdown5% of tank remaining
PressureLow Oil Pressure Shutdown20psi (138 kPa)engine controller shuts down engine below this pressure
PressureOil Pressure Restart Check5psi (34 kPa)shut engine down immediately if pressure does not reach this value within 5 seconds of restart
SpeedNo-Load Frequency60.0Hzno loads on the generator
TemperatureHigh Coolant Temperature Shutdown230°F (110°C) or more
TorqueGenerator drive plate bolts33ft-lb (45 Nm)
TorqueTrailer wheel lug nuts, first pass20-25ft-lbs (27-33 Nm)first pass
TorqueTrailer wheel lug nuts, second pass50-60ft-lbs (67-81 Nm)second pass
TorqueTrailer wheel lug nuts, third pass90-120ft-lbs (122-162 Nm)third pass
VoltageVoltage Regulation+/- 1%

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

FluidGradeStandardAmbientCapacityNotes
Fuelultra low sulfur diesel459.0 gal (1738 L)Usable fuel volume 423 gal (1601 L)

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

3
Checking Generator Drive Plate Torque maintenance
  1. Disconnect the engine starting battery
  2. Remove the generator fan guard
  3. Torque each of the drive plate bolts to the specification (MMG330: 33 ft-lb / 45 Nm)
  4. Reinstall the generator fan guard and reconnect the battery
Resetting of the Time to Service Reminder maintenance
  1. With the unit shut down, power up the controller with the Control On/Off toggle switch
  2. Press Page Select until Engine Protect line is reached and press Enter
  3. "WrnMaintanance" appears with the current service time hour setting below it
  4. Press Enter; current run time in hours appears on the display
  5. Reset the current run time hour setting to 250
  6. Press Enter to save the run time hour setting
  7. Move the Control On/I toggle switch to Control Off/O
Towing the Trailer / Wheel Lug Torque Sequence maintenance
  1. Start all lug nuts by hand
  2. First pass: tighten to 20-25 ft-lbs (27-33 Nm)
  3. Second pass: tighten to 50-60 ft-lbs (67-81 Nm)
  4. Third pass: tighten to 90-120 ft-lbs (122-162 Nm)
  5. After the first road use, re-torque the lug nuts in sequence

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

What is the power rating of the Magnum MMG330 Super Start?

The Magnum MMG330 Super Start is rated 294 kW standby (367.0 kVA).

Which engine powers the Magnum MMG330 Super Start?

The Magnum MMG330 Super Start is powered by the John Deere PE609HFG95 engine.

What fuel does the Magnum MMG330 Super Start use?

The Magnum MMG330 Super Start runs on Diesel.

How much coolant does the Magnum MMG330 Super Start hold?

The Magnum MMG330 Super Start cooling system holds 70.9 liters (18.7 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the continuous rating of the Magnum MMG330 Super Start?

The Magnum MMG330 Super Start is rated 263 kW prime (329 kVA), against 294 kW standby.

What is the dry weight of the Magnum MMG330 Super Start?

The Magnum MMG330 Super Start has a dry weight of 4539 kg (10006 lb).

How big is the fuel tank on the Magnum MMG330 Super Start?

The Magnum MMG330 Super Start has a 1738 liter (459 US gallon) fuel tank, giving about 23 hours of runtime.

What voltage does the Magnum MMG330 Super Start produce?

The Magnum MMG330 Super Start is offered in 208 V, 480 V, 3-phase.

How many cold cranking amps does the Magnum MMG330 Super Start require?

The Magnum MMG330 Super Start uses 2 batteryies, 12V V each, 1000 CCA, group Group 31, per the manufacturer specification sheet.

What alternator comes on the Magnum MMG330 Super Start?

The Magnum MMG330 Super Start uses a Marathon 433PSL6220 alternator.

Troubleshooting

28

Fault codes

CodeMeaning
SPN:100EngOil Press
SPN:102Boost Press
SPN:105Intake Temp
SPN:110EngCool Temp
SPN:175EngOil Temp
SPN:629Controller #1
SPN:636PositionSensor
SPN:637TimingSensor
SPN:651InjectorCyl#1
SPN:652InjectorCyl#2
SPN:653InjectorCyl#3
SPN:654InjectorCyl#4
SPN:655InjectorCyl#5
SPN:656InjectorCyl#6
SPN:677EngStartRelay
SPN:1485ECU MainRelay
SPN:3719.15High soot load caution
SPN:3719.16Very high soot load warning
SPN:3719.00Very high soot load - needs service

Symptoms & remedies

SymptomCauseRemedy
Wrn RA15 fail — Warning alarm in case of lost connection to IGL=RA15 moduleLost connection to IGL=RA15 module
WrnMaintenance — The period for servicing is set by the WrnMaintenance setpoint; the protection comes active if the running hours of the engine reach this valueRunning hours of the engine reach the WrnMaintenance setpointReset the "ServiceTime" reminder to the 250 hour interval
CheckDPFStatus — Engaged when the Diesel Particulate Filter needs attentionDiesel Particulate Filter needs attention
Low fuel level shut downFuel level low; leaks in the fuel tank; fuel level sender and connecting wiring damagedCheck the fuel level on the LCD window and confirm the generator is sitting level; check for leaks in the fuel tank; check the fuel level sender and the connecting wiring for damage and check for continuity between the sender and the engine controller
Low oil pressure shutdownLow engine oil level; oil leaks; loss of oil pressure; oil pressure sender faultCheck the level of the engine oil with the dipstick and add oil if required; visually inspect the engine for oil leaks; restart the unit and verify the loss of oil pressure, shutting the engine down immediately if the oil pressure value does not read 5 psi (34kPa) within 5 seconds; check the oil pressure sender and refer to the troubleshooting section of the engine operation and maintenance manual
Low coolant level shut downLow coolant level; visible leaks in coolant hoses, engine block or water pump; coolant mixed with engine oilAllow the engine to cool; check the coolant level in the radiator and add coolant until it is 3/4 in (2 cm) below the filler neck; inspect coolant hoses, engine block and water pump for visible leaks; check the engine oil to verify no coolant has mixed with it and consult the engine operation and maintenance manual
High coolant temperature shut downLow coolant level; radiator shroud and ducting blockage; visible leaks in coolant hoses, engine block or water pump; loose serpentine drive belt for the water pump; engine overheatingCheck the coolant level in the overflow jug; restart the engine and read the coolant temperature to verify High Coolant Temperature shut down, stopping the engine immediately if the coolant temperature is 230°F (110°C) or more; allow the engine to cool, add coolant to the overflow jug if low and check the radiator level, adding coolant until it is 3/4 in (2 cm) below the filler neck; check the radiator shroud and ducting for blockage and remove any foreign matter; inspect coolant hoses, engine block and water pump for visible leaks; check the tension of the serpentine drive belt for the water pump; remove the load on the generator and restart the engine, checking the coolant temperature and shutting the engine down immediately if it starts to overheat, and consult the engine operation and maintenance manual
Overcrank shut downLow fuel level in the tank; fuel pump not operating properly; air filter blockage; engine will not startCheck the fuel level in the tank; check for proper operation of the fuel pump; check air filter for blockage; if the engine will not start, consult the engine operation and maintenance manual for additional information on troubleshooting starting problems
Overspeed or underspeed shut downEngine speed above or below 60.0 HzDisconnect all loads and restart the generator, read the frequency (Hz) on the LCD display (with no loads the frequency should read 60.0 Hz); if the frequency is above or below 60.0 Hz, adjust the engine speed per the engine manual for throttle adjustments on mechanical governed units and the electronic governor manual for electronically controlled units

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

Repair guides

3

Step-by-step procedures compiled from the Magnum service manual for this model.

Parts

10
Part #DescriptionQtySystem
0178050A circuit breakers (3)3Circuit breaker Amazon eBay
01879STOPStop engine Amazon eBay
23668WPanel, rear control box - upper1Panel eBay
24043ZCStriker, short pin1Striker eBay
24196Washer, striker pin - int. thrd.1Washer Amazon eBay FridayParts $20.99
60095Nut, .312-18 sflg2Service part / kit Amazon eBay
60340Washer, .312 flat .875/.040, SS2Service part / kit Amazon eBay FridayParts $24.95
60452Washer, .313 flat 1.125/1.0 bonded rubber, SS1Service part / kit Amazon eBay
60505Nut, .312-18 U-clip - long type4Service part / kit Amazon eBay
60507Screw, .312-18x1.0 std hex, SS2Service part / kit Amazon eBay $40.99

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
Prime100%70.818.7

Available documents

Owner's manual (Magnum)

This page was generated from the 1 manufacturer document above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

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