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Magnum MMG185DCAN6 Generator Set

The Magnum MMG185DCAN6 is a 188 kW (235 kVA) standby generator set powered by a John Deere PE6068HF485 engine. It is available at 600 V, 480 V, 208 V and 240 V, 3-phase, 60 Hz and rated 226 A. It holds about 31.2 L (8.2 gal) of oil and 31.5 L (8.3 gal) of coolant. Starting uses 1 battery rated 1000 CCA at 12 V. The set weighs about 2953 kg (6510 lb). An integrated tank holds 1295 L (342.1 gal).

188 kW
Standby
6.8 L
Displacement
31.2 L
Oil capacity
1
Document types

Service parts for the MMG185DCAN6

Grouped by system, with how many of each the parts manual calls for.

Air intake

1 required
100-001Air filtersee priceAmazon

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

Frequency60.0 Hz
Standby power188 kW
Standby kVA235
Prime power172 kW
Oil capacity31.2 L
AlternatorMarathon 431PSL6505
Voltage options600 V, 480 V, 208 V, 240 V
Phase3
Rated current[226, 279, 630] A
Power factor['1 (1Ø), 0.8 (3Ø)']
Battery cranking1000 CCA
Battery voltage12 V
Battery quantity1
Coolant capacity31.5 L
Dry weight2953 kg
Fuel tank1295.0 L

Engine

John Deere PE6068HF485
Oil capacity31.2 L
Coolant capacity35.9 L
Displacement6.8 L
Aspirationturbocharged
Rated speed1800 rpm

Maintenance & consumables

for the John Deere PE6068HF485
ItemSpecCapacityPart #Interval
Air filterAir Filter100-001 Amazon Amazon eBay eBay
Fuel filter—
Oil filter—
Battery—
Belt—
Coolant—
Oil—
Spark plug—

Common questions

How many kW is the Magnum MMG185DCAN6?

The Magnum MMG185DCAN6 is rated 188 kW standby (235.0 kVA).

What engine does the Magnum MMG185DCAN6 use?

The Magnum MMG185DCAN6 is powered by the John Deere PE6068HF485 engine.

What is the oil capacity of the Magnum MMG185DCAN6?

The John Deere PE6068HF485 engine in the Magnum MMG185DCAN6 has an oil capacity of 31.2 liters.

What is the coolant capacity of the Magnum MMG185DCAN6?

The Magnum MMG185DCAN6 cooling system holds 31.5 liters (8.3 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the prime power rating of the Magnum MMG185DCAN6?

The Magnum MMG185DCAN6 is rated 172 kW prime (215 kVA), against 188 kW standby.

What is the dry weight of the Magnum MMG185DCAN6?

The Magnum MMG185DCAN6 has a dry weight of 2953 kg (6510 lb).

How big is the fuel tank on the Magnum MMG185DCAN6?

The Magnum MMG185DCAN6 has a 1295 liter (342 US gallon) fuel tank.

What voltage does the Magnum MMG185DCAN6 produce?

The Magnum MMG185DCAN6 is offered in 600 V, 480 V, 208 V, 240 V, 3-phase.

What size battery does the Magnum MMG185DCAN6 need?

The Magnum MMG185DCAN6 uses 1 battery, 12 V each, 1000 CCA, per the manufacturer specification sheet.

What alternator does the Magnum MMG185DCAN6 use?

The Magnum MMG185DCAN6 uses a Marathon 431PSL6505 alternator.

What air filter does the Magnum MMG185DCAN6 use?

The Magnum MMG185DCAN6 uses air filter part number 100-001.

Troubleshooting

6

Symptoms & remedies

SymptomCauseRemedy
WrnMaintenance displayed when the unit is due for maintenance or serviceReset the "ServiceTime" reminder to the 250 hour interval: with the unit shut down, power up the controller with the "CONTROL ON/OFF" toggle switch; press the "PAGE SELECT" button; press the down button to move the cursor to the "Engine Protect" line; press "ENTER"; press "ENTER" again; press the up button and reset the current run time hour setting to 250; press "ENTER" to save; move the "CONTROL ON/I" toggle switch to the "CONTROL OFF/O" position
Low fuel level shutdownFuel level low; leaks in the fuel tank; damaged fuel level sender or connecting wiringCheck the fuel level on the LCD window and confirm the generator is sitting level; check for leaks in the fuel tank; if the fuel level is good and no leaks are found, 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; faulty oil pressure senderCheck the level of the engine oil with the dipstick and add oil if required; visually inspect the engine for oil leaks; if the oil level is good, restart the unit and verify the loss of oil pressure and shut the engine down immediately if the oil pressure value does not read five psi (34 kPa) within five seconds; check the oil pressure sender and refer to the troubleshooting section of the engine operator's manual
Low coolant level shutdownLow 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. (1.9 cm) below the filler neck; inspect coolant hoses, engine block and water pump for visible leaks; check engine oil to verify no coolant has mixed with it and consult the engine operator's manual
High coolant temperature shutdownLow coolant level; blocked radiator shroud or ducting; 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 and stop 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 level of coolant in the radiator, adding coolant until it is 3/4 in. (1.9 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; if no other problems are found, remove the load on the generator and restart the engine, check the coolant temperature and shut the engine down immediately if it starts to overheat, and consult the engine operator's manual
Overcrank shutdownLow fuel level in tank; improper operation of the fuel pump; blocked air filter; starting problemsCheck the fuel level in tank; check for proper operation of the fuel pump; check air filter for blockage; if the engine will not start, consult the engine operator's manual for additional information on troubleshooting starting problems

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Magnum MMG185DCAN6 troubleshooting guide (14 entries) →

Parts

2
Part #DescriptionQtySystem
100-001Air Filter1Air filter Amazon Amazon eBay eBay
30175Decal, UN31A tank caution1Service part / kit Amazon eBay NAPA $12.21 FridayParts $85.00

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
Prime28.07.4
Standby32.38.5

Available documents

Service manual — 34309 (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.