Spec Sheet

MMG55DF4 | 2.9 L | 55 kVA
MOBILE DIESEL GENERATOR SET
EPA Emissions Certification: Final Tier 4
SPEC SHEET
4 of 6
General
Make (Model) John Deere (3029HFG03)
EPA Emissions Compliance Final Tier 4
After Treatment System DOC and DPF
Cylinders – Qty 3
Type In-Line
Displacement – in
3
(L) 177 (2.9)
Bore – in (cm) 4.2 (10.7)
Stroke – in (cm) 4.3 (11.0)
Compression Ratio 16.9:1
Intake Air Method Turbo/Air-To-Air
Engine Governing
Governor Electronic
Frequency Regulation (Steady State) ±2%
Lubrication System
Oil Pump Type Gear Driven
Oil Filter Type Spin-On Cartridge, Full Flow
Crankcase Capacity – qt (L) 11 (10.4)
Cooling System
Cooling System Type Radiator and CAC
Water Pump Type Belt Driven
Fan Type Pusher
Fan Speed – rpm 2,268
Fan Diameter – in (cm) 11.42 (29.0)
Cooling System Capacity – qt (L) 18 (17)
Fuel System
Fuel Type Ultra Low Sulfur Diesel
Fuel Specifications EN 590 / ASTM D975
Fuel Filtering – µ 5
Fuel Inject Pump – Make (Model) Denso (HP3)
Fuel Pump Type Engine Gear Driven
Injector Type Electronic
Engine Type Direct Injection High Pressure Common Rail
Fuel Supply Line Diameter – in (mm) 0.375 (9.5)
Fuel Return Line Diameter – in (mm) 0.375 (9.5)
Engine Electrical System
System Voltage – VDC 12
Battery Charger Alternator – VDC (A) 12 (65)
Battery Size – CCA 720
Battery Voltage (Battery Qty) 12 (1)
Ground Polarity Negative (-)
APPLICATION AND ENGINEERING DATA
ENGINE SPECIFICATIONS
ALTERNATOR SPECIFICATIONS
Make (Model) Marathon Electric (286PSL1701)
Poles – Qty 4
Field Type Rotating
Insulation Class – Rotor H
Insulation Class – Stator H
Total Harmonic Distortion <5%
Telephone Interference Factor <50
Standard Excitation Brushless
Bearings Single Bearing
Coupling Direct Flexible Disc
Prototype Short Circuit Test Yes
Voltage Regulator Type AVR
Quantity of Sensed Phases 1
Regulation Accuracy (Steady State) ±0.5%