Basic CMYK
Model 140CU20
Cummins QSB Diesel (Tier 3)
Data Sheet:
Your Total Systems Provider
Hobart Ground Systems combines Hobart Ground Power, Trilectron/Air-A-Plane
and ITW Military GSE and their world-renowned engineering, design, sales,
and service teams to provide a total systems solution for the commercial and
military aviation ground support industries. Our user-friendly designs, superior
performance, and proven reliability, provide our customers the best value in
the industry.
Designed For Durability:
Low profile, combined with standard 5th wheel (turntable) steering, provides
superior visibility and maneuverability in congested ramp areas, while the durable
bumper system protects the unit from damage caused by other GSE.
Power For Peak Performance:
The Hobart Cummins diesel powered GPU features the “QSB” series electronic
diesel engine, combined with a Hobart designed and manufactured generator,
to maximize GPU performance while maintaining the traditional Hobart reputation
for reliability.
CE & Tier 3
Emission Certified:
Hobart teamed with Cummins to specify the most technically
advanced engine designed to meet both current and future
Emission standards. International labeling is an added feature
of this GPU.
Fully Emission Certified Engine (Tier 3)
Noise “Isonorized” design which
includes a noise reduction kit
Large corrosive free fuel tank
(125 gallon) and low fuel warning
shutdown are standard
Delayed stop (for turbo protection)
and emergency shutdown are standard
Hobart-designed and manufactured
generator offers long life and reliability
Numbered, color-coded wiring remains
traceable for the life of the unit
5th wheel (turntable) steering features
maintenance-free nylon bushings
Choice of drum type braking systems:
tow bar activated or hand brake activated
Superior regulation via the engine’s
electronic control module
Lift-off doors and pop-out panels provide
easy access to engine, generator and
control compartments
Lost Neutral Detection standard
Dimensions in inches [mm]
REV: 02/21/12
Performance Features:
Model 140CU20
• Phase voltage balance (with unbalanced load)
Engine ~
• Cummins QSB6.7 diesel engine
operating at 2000 RPM (276 hp)
Turbocharged 4-stroke, inline 6 cylinder
and fuel pump
Full application approval by
Cummins Engine Co., Inc.
12 VDC battery system
Low oil pressure shutdown
High coolant temperature shutdown
Intake air restriction indication
Electronic governor system
(via the engine’s ECM)
Semi-automatic engine pre-heater for
cold weather starts
Environmental ~
Relative humidity 10-95%
Operating Temperature:
-25° F to +125° F (-31° C to + 52° C)
Relative humidity 0-100% non-condensing
No altitude derating required up to 10,000
feet, when running in normal operating range
• Regulation: +/- 2Hz steady rate
• Transient recovery: to within +/- 5Hz in
Generator Output
<2 seconds per ARP 5015A
Modulation: <0.25% (1Hz)
Protection ~
• Meets MIL-STD-704F
• Over-voltage: instantaneous disconnect
of load at 180 volts L-N, with inverse time
delay down to 126 volts in 2 seconds
Under-voltage: disconnects output below
100 volts L-N in 7 seconds
Over-frequency: disconnects output above
420Hz in 5 seconds
Under-frequency: disconnects output below
380Hz in 7 seconds
• Anti-corrosive Polyester powder provides
• Transient voltage recovery time: to within
± 1% in 100 milliseconds (no load to rated load)
Within +/- 20% deviation upon application/
removal of 100% load rating
Modulation: does not exceed 0.5% of
steady state voltage
Phase voltage displacement with
balanced load: 120+/-1.5
stop delay action, panel lights, fault
summary (test/reset button)
Fault Code Display: air cleaner restriction,
high coolant temperature, low oil pressure,
low fuel warning, etc.
Buttons: engine start, engine stop,
panel lights
Protective Finish ~
Voltage ~
voltmeter, hour meter, oil pressure, fuel level
Voltage Regulation: ±1% no load to full load
Voltage adjust: ±15 volts
Three phase average sensing
Line Drop Compensation: Automatic up to 5%
Frequency ~
150% for 30 seconds
• Individual outputs: 324 amps, 5 minutes
Engine Operation
• Indicator Lights: engine circuit on, engine
• 125% rated load for 5 minutes,
Displays /
Instrumentation ~
Overload ~
• Tire Size: 20.5 x 8.00 - 10
• Ground clearance: 9” (.23m)
• Brakes: Tow bar activated, drum type
• Meters: coolant temperature, battery
115/200 VAC, continuous
Meets or exceeds MIL-STD-704F
Electrical Power Quality Requirements
Trailer ~
Regulation ~
Performance ~
• Rating: 140kVA, 3 phase, 4 wire,
does not exceed 4% with 1/3 rated current
on any single phase with other two phases
Crest factor: 1.414 +/- 0.07
Individual Harmonic Distortion:
< 2% of the fundamental (RMS) voltage
Total Harmonic Distortion:
<3% of the fundamental (RMS) voltage
Cummins QSB Diesel (Tier 3)
excellent weather resistance, flexibility and
adhesion, plus a strong resistance to
chemical agents such as glycol and skydrol
Standard colors are high gloss white over
black frame and chassis
Custom colors require a paint chip or swatch
for accurate color match
• Meters: frequency, ammeter, voltmeter
• Indicator Lights: contactors on, fault
summary (test/reset button),
EF interlock mode
Fault Code Display: over-frequency,
under-frequency, overload, over-voltage,
under-voltage, etc.
Buttons: meter select, output contactors
control, test/reset
Available Options ~
• Block heater kit, (120V/60Hz or 240V/50Hz)
• Internal 28.5 VDC Transformer-Rectifier
(600 A continuous, 2000 A peak)
Automatic towbar height stop
Pintle or pin hitch
Spot light
Stainless Steel Fuel Tank
Alternative mounting configuration:
stationary, fixed, or truck mounted
Special paint scheme
Hand activated brakes
Battery blanket (120V)
Indicator beacons (low fuel, operating)
Low fuel warning/shutdown
Clearance Lights
CE Marking
Engine Model
Size (L x H X W)
Unit Weight
Cummins QSB6.7
156.5 L x 76.1 H x 77 W in
(3975 x 1934 x 1956 mm)
7000 lbs (3175 kg)
6500 lbs (2948 kg)
Specifications subject to change without notice.
11001 US Hwy. 41 North Palmetto, FL 34221 U.S.A.
Phone: 941.721.1000 • Fax: 941.721.1087
Asia Office:
International (UK):
Phone: +65 6645 3668 • Fax: +65 6645 3669
Phone: +44 1723 370437 • Fax: +44 1723 370125
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