NT-855F3
FIRE PUMP ENCUNE
LISTED AGENCY RATINGS
SPECIFICATIONS
Four Stroke Cycle, Turbocharged,
In-lii, 6 Cylinder Dlesel Engine
Bore and Stroke
Displacement
Oil System Capaci
Engine Coolant &city
Net WalgM, with Std.
W s ~ ~ r i eDN
s.
290 HP B 1760 RPM
5.50 x 6 in.
855 w. in
7.6 U.S. gals.
10.5 U.S. gal.
(140x152 mm)
(14 L)
(28.8 L)
(39.7 L)
3.250 ib.
11 474 ka)
INSTALLATION
CONSIDERATIONS
Maximum raw water pressure must not exceed 50 PSI (345 kPa).
Minimum acceptable raw water flow at 90' F (32' C) raw water
temperature and 10W F (38' C) ambient air temperature should be at
least 34 G.P.M. (129 Urnin.) at the 2100 RPM listed rating.
Ventilation air required for engine combustion 19830 CFM (392 Usec.)
at 2100 RPM rating. This is for engine air combustion only and does
not take into comideratim additional air required for normal room
cooling.
(UI
I
-
.IRA
This symbol on the nameplate means the product is
Usied by Underwriters' Laboratories. Inc.
This symbol on the nameplatemeans the product is
approved by the Factory Mutual Research
Corporation.
This symbol on the nameplatemeans the product is
Listed by Underwriters' Laboratoriesof Canada.
All ot the above ratings are listed by the following agencies:
Underwriters' Laboratories Inc.
Factow Mutual
The agemq+approved horsepower ratings published are already
'
deratedfor fire pump service. The ratings show horsepoweravailable
for driving the fire pump at standard SAE J1985 conditions of 29.61 2 ' ',:
in. (100 kPa) Hg barometer and 77' F (25' C) Inlet air temperalure . . ' $,,
(approximately 300 It. [01.4 m] above sea level). The only a d d i i
deration necessary Isfor hlgher amblent temperaturesand elevations
as fdlows: 3% for each 1000 ft.
(305 m) above 300 ft. (91.4 rn) and ..
1% for each 10' F (5.6' C) above.77' F (25' C) in accwdanci with ' ' : : ,
National Rre Association Pamphlet No. 20.
.
'-
.
:
.
..
".\
,,
DESIGN FEATURES
Bearings: Replaceable, precision type,steel backed inserts. Seven
main bearings, 4.5 in. (114 mm) diameter. Connecting rod
bearings 3.125 in. (79 mm) diameter.
Camshaft Single large diameter camshaft precisely controls valve
and injector timing. Lobes are induction hardened for long life.
Seven replaceable precision type bearings 2.5 in (64 mm)
diameter.
Camshaft Followers: Induction hardened, roller type for long cam
follower life.
Connecting Rods: Drop forged, i-beam section 12 in. (305 mm)
center lo center length. Rifle drilled for pressure lubrication of
plston pin. Rod is tapered on piston pin end to reduce unit
pressures.
Cooling System: Ben driven centrifugal water pump. Large volume
water passages provide even flow of coolant around cylinder
liners, valves, and injectors. Modulating by-pass thermostat
regulates coolant temperature. Spin-on corrosion resistor checks
rust and corrosion, controls acidity, and removes impurities.
Crankshaft: Fully muntenveishted high tensile steel forgina
- - with
induction hardeneo fi ets and journalis.
Cylinder Block: Alloy cast Iron with removable wet liners.
cylinder heads: ~ 1 1 0cast
~ iron. EAch head serves two cylinders.
Drilled fuel supply and return lines. Valve seats are replaceable
corrosion resistant Inserts. Valve guides and cross head guides
are replaceable inserts.
Cylinder Liners: Replaceable wet liners dissipate heat faster than
dry liners and are easily replaced without reboringthe block.
Fuel System: Cummins exclusive low pressure P F system with
wear compensating pump and integral dual flyweight governor.
Camshaft acluated fuel injectors give accurate metering and
timing. Fuel lines are internal drilled passages in cylinder heads.
Spin-on fuel filter.
Gear Train: Timing gears and accessory drive gears are induction
hardened helical gears driven from crankshaft and located at front
of block.
Lubrication: Large capacity gear pump provides pressure
lubrication lo all bearings. All pressure lines are internal drilled
passages In block and heads.
Piston: Aluminum allov, cam crround and barrel shawd to
compensate for therrni expansl& assures precise iilat operaling
temperatures. CeCorrm grcoved skirt finish provides superior
iubncation. Oil cooled t o r rapid heat dissipation. Three
compressionand one oil ring.
Turbocharger: Cummins exhaust gas driven turbocharger.
Turbocharging provides more power, improved fuel economy,
allilude compensation. and lower smoke and noise levels.
Valves: Dual 1.875 in. (48 mm) diameter poppet lype intake and
exhaust valves. Wear resistant face on exhaust valves.
STANDARD EQUIPMENT
Air Clearer: 15 inch (381 mm) dlameter dry air deaner.
Belt and Damper Shield Guard: Prolection from alternator,
accessory drive, and water pump belts andvibratlon damper.
Coolant Pump: Belt driven, centrifuqaltype.
Corrosion ~esistor:Mounted, checks &A and corrosion, controls
acidity, and removes impuritiesfrom awlant.
Electrical Equipment: 24 volt negative ground system, induding:
a 24 wr stadng rotor; a 24 vdt, 35 or 45 amp alternator;
manually operable contactors: and a junction box with endosed
terminal ship.
Engine Support Pedestal type, front and rear.
Exhaust Manifold: Dry and Insulated.
Exhaust Outlet: 5 In. (I27 mm) diameter, 90' elbow.
Filters: Spin-on, replaceable lubricating oil filter. Dual spin-on,
replaceable fuel filters.
flywheel: Machinedfor stub shaft mounting.
Flvwheel Housina: SAE No. 1 with Industrialsuowrts.
Governor: Mechanical flyweight, mechanical variable speed type.
Heat Exchanger: Cower nlckel tube bundle, mounted.
Instrument panel: Mounted. Electrical instruments only. Includes
charge meter, tachometer, hour meter, water temperamre
gauge, and lubricating oil pressure gauge.
Lubricating Oil Cooler: Tubular type, jacket water cooled.
Oil Pan: Cast aluminum, rear sump lype. 7 U.S. gallon (26.5 litre)
capacity. Prov~s~on
for optional oil heater.
Oil Pressure Switch: Provides signal to aclivate alarm (not
included) for low oil pressure.
Overspeed Swiih: Mwnted, overspeed shutdown with manual
reset, stop crank contacts.
Stubshaft: Mounted on flywheel.
mrome Control: Hydraulic, wtth no m a d override.
Vibration Damuer: Viscous tvpe.
Water J a c M st^: ~ounted
beside oil pan. 115volt. 2500 wan.
Water Temperature Swlteh: Pmndes signal lo amate alarm (not
indudedjfor high water temperalure. -
-
..
OPTIONAL EQUIPMENT
011 Heatec Mounted on side of oil Dan.
Cummins Engine Company, Inc.
Box 3005
Columbus, IN 47202-3005
U.S.A.
Firepump
Pg. No.
CUMMINS ENGINE COMPANY, INC.
F3
31
Engine Data Sheet
Engine Model:
FIRE PUMP NT855-F3 BIG CAM
Gross Power BHP (kW): 300 (224) @ 2100
Configuration Number: D092399FX02
Data Sheet: FR-1478
Date:
08Mar95
CPL Code: 0552
GENERAL ENGINE DATA
Type....................................................................................................................................4 cycle, Inline, 6 cylinder
Aspiration: ..........................................................................................................................Turbocharged
Bore - in. (mm)....................................................................................................................5.5 (140)
Stroke - in. (mm).................................................................................................................6.0 (152)
Displacement - in.3 (litre) ....................................................................................................855 (14.0)
Compression Ratio .............................................................................................................14.1:1
Valves per Cylinder: - Intake...............................................................................................2
- Exhaust............................................................................................2
Engine Weight & Center of Gravity (With Standard Accessories)
Reference Installation Diagram ....................................................................................3382636
Dry Weight - lb. (kg)......................................................................................................3250 (1474)
Wet Weight - lb. (kg).....................................................................................................3385 (1535)
C.G. Distance from F.F.O.B. - in. (mm).........................................................................19 (483)
C.G. Distance Above Crankshaft Centerline - in. (mm)................................................5 (127)
Maximum Allowable Bending Moment @ Rear Face of Block - lb.-ft. (N•m)......................1000 (1350)
AIR INDUCTION SYSTEM
Maximum Allowable Temperature Rise Between Ambient Air and Engine Air Inlet
(Ambients 50°F [10°C] to 100°F [38°C]) - °F (°C) ........................................................30 (15)
Maximum Allowable Intake Restriction With a Dirty Air Filter Element in. H2O (mm H2O) ........................................................................................................25 (635)
Part Number of Standard Air Filter Element (Dry Type) ....................................................3022209
Minimum Allowable Ambient Air Temperature - °F (°C)......................................................50 (10)
LUBRICATION SYSTEM
Oil Pressure @ Rated Speeds - PSI (kPa).........................................................................50 - 70 (345 - 483)
Oil Flow @ Maximum Rated Speeds (Nominal) - U.S. GPM (litre/s)..................................33 (2.1)@1760/40 (2.5)@2100
Oil Pan Capacity (High - Low) U.S. gal. (litre) ....................................................................7-6 (26-23)
Full Flow Lube Oil Filter Capacity - U.S. gal. (litre).............................................................7.6 (28.8)
Part Number of Standard Oil Pan.......................................................................................193631
Part Number of Standard Oil Filter Element ......................................................................3889310
Application Note:
When ambient temperatures will be lower than 70°F (21°C) an oil heater is required. The
recommended heater wattage for this engine is 300 down to 50°F (10°C).
COOLING SYSTEM
Heat Exchanger Cooled (Shell & Tube Type)
Part Number of Tube Bundle........................................................................................3008844
Raw Water Working Pressure Range at Heat Exchanger - PSI (kPa) ...............................50 (345) MAX
Recommended Minimum Water Supply Pipe Size to
Heat Exchanger (Reference Only) - in. (mm) dia .........................................................1.25 (31.8)
Recommended Minimum Water Discharge Pipe Size From
Heat Exchanger (Reference Only) - in. (mm) dia .........................................................1.50 (38.1)
Coolant Water Capacity (Engine Side) - U.S. gal. (litre).....................................................10.5 (40)
Standard Thermostat - Type...............................................................................................Modulating
- Range - °F (°C) .............................................................................175-197 (79-92)
Minimum Raw Water Flow with Water
Temperatures to 90°F (32°C) - U.S. GPM (litre/s) ........................................................34 (2.1)
Note:
Minimum raw water requirement is based on water flow required to minimize tube fouling in the heat
exchanger tube bundle.
A jacket water heater is mandatory on this engine. The recommended heater wattage is 2500 down
to 50°F (10°C).
Firepump
Pg. No.
F3
32
EXHAUST SYSTEM
Maximum Allowable Back Pressure Imposed by Piping &
Silencer - in. Hg (mm Hg) ............................................................................................ 3 (75)
Exhaust Pipe Size Normally Acceptable - in. (mm) dia...................................................... 5 (125)
FUEL SYSTEM
Supply Line Size - in. (mm)................................................................................................ 0.625 (16) O.D. Tube
Drain Line Size - in. (mm) .................................................................................................. 0.625 (16) O.D. Tube
Maximum Fuel Height Above CL Crankshaft - in. (mm) .................................................... 80 (2030)
Part Number of Standard Fuel Filter .................................................................................. 3315847
Part Number of Standard Fuel Filter Element.................................................................... FF-105D
Maximum Allowable Restriction to Fuel Pump with Dirty Filter - in. Hg (mm Hg) .............. 8 (200)
Maximum Allowable Return Line Restriction - in. Hg (mm Hg).......................................... 4 (100)
ELECTRICAL SYSTEM
Battery Voltage .................................................................................................................. 24
Battery Cable Size (Maximum Cable Length Not to Exceed 10 ft. (3.0 m) AWG) ............. 00
Wiring for Automatic Starting (Negative Ground)............................................................... Standard
Alternator (Standard) 24 Volt, Internally Regulated - Ampere............................................ 35 or 45
Manually Operable Contactors .......................................................................................... Standard
Minimum Recommended Battery Capacity ....................................................................... Amp-hr.
70°F (21°C) Minimum Temperature ............................................................................. 100
32°F (0°C) Minimum Temperature ............................................................................... 150
Reference Wiring Diagram Number................................................................................... 3382636
0°F CCA
450
640
PERFORMANCE DATA
All data is based on the engine operating with fuel system, water pump, lubricating oil pump, air cleaner, and
alternator; not included are compressor, fan, optional equipment and driven components. Data is based on
operation at SAE standard J816b conditions of 500 feet (150 m) altitude (29.00 in. [736 mm] Hg dry barometer),
85°F (29°C) intake air temperature and 0.38 in. (9.6 mm) Hg water vapor pressure, using No. 2 diesel or a fuel
corresponding to ASTM D2. All data is subject to change without notice.
Altitude Above Which Output Should be Limited - ft.(m).................................................... 500 (150)
Correction Factor per 1000 ft. (300 m) above Altitude Limit ........................................ 3%
Temperature Above Which Output Should be Limited -°F(°C)........................................... 85 (29)
Correction Factor per 10°F (11°C) Above Temperature Limit ...................................... 1% (2%)
FM Approved and UL Listed Ratings For: NT855-F3
Listed/
Approved
Ratings
BHP (kW)
Engine
Speed
Heat Rejection
to Coolant
RPM
Ventilation Air
Required for
Combustion
CFM (litre/s)
BTU/min (kW)
Heat Rejection
to Ambient
Air*
BTU/min (kW)
300 (224)
2100
290 (216)
1760
Exhaust Gas
Fuel
Consumption
Flow
CFM (litre/s)
Temp.
°F (°C)
857 (405)
8600 (151)
1130 (20)
2225 (1050)
850 (454)
16.1 (60.9)
708 (334)
7500 (132)
1060 (19)
1772 (836)
900 (482)
15.9 (60.2)
Gal/h (litre/h)
* - Does not include exhaust piping.
All Data is Subject to Change Without Notice
CUMMINS ENGINE COMPANY, INC., Columbus, IN 47202-3005 U.S.A.
Data Sheet : DS - 1478
Cummins Engine Company, Inc.
Firepump
Pg. No.
Exhaust Emissions Data Sheet
F3
33
Data Sheet: DS-1478
Date: 08Mar95
Engine
Model:
NT855-F3
Type:
4 cycle, In-Line, 6 Cylinder Diesel
Aspiration:
Turbocharged
Compression Ratio:
14.1:1
Emissions Control Device:
Turbocharger
Performance Data
Application:
Config. Number:
Bore:
Stroke:
Displacement:
2100 RPM
1760 RPM
300
16.1
33.1
2225
850
290
15.9
27.7
1772
900
BHP
Fuel Consumption (gallons/hour)
Air to Fuel Ratio
Exhaust Gas Flow (CFM)
Exhaust Gas Temperature (oF)
Exhaust Emissions Data
Component
HC
NOx
CO
PM
SO2
CO2
N2
O2
H 2O
(Total Unburned Hydrocarbons)
(Oxides of Nitrogen as NO2)
(Carbon Monoxide)
(Particulate Matter)
(Sulfur Dioxide)
(Carbon Dioxide)
(Nitrogen)
(Oxygen)
(Water Vapor)
Firepump
D092399FX02
5.50 in. (140 mm)
6.00 in. (152 mm)
855 cu. in. (14.0 liters)
(All values are grams/hp-hour)
2100 RPM
1760 RPM
0.19
11.20
0.90
0.50
0.67
550
4400
760
200
0.09
11.50
0.40
0.50
0.69
560
3700
550
200
Test Conditions
Data was recorded during steady-state rated engine speed (± 25 RPM) with full load (± 2%).
Pressures, temperatures, and emission rates were stabilized.
Fuel Specification:
Fuel Temperature:
Intake Air Temperature:
Barometric Pressure:
Humidity:
ASTM D975 No. 2-D diesel fuel with 0.2% sulfur content
(by weight) and 42-50 cetane number.
99o F ± 9o (at fuel pump inlet)
77o F ± 9o
29.6 in. Hg ± 1 in. Hg
NOx measurement corrected to 75 grains H2O/lb. dry air
The HC, NOx, and CO emissions data tabulated here were taken from a single engine under the test conditions shown above. Data for the other
components are estimates. This data is subject to instrumentation, measurement, and engine-to-engine variability. Engine operation with excessive air intake or exhaust restriction beyond published maximum limits, or with improper maintenance, may result in elevated emission levels.
All Data is Subject to Change Without Notice
CUMMINS ENGINE COMPANY, INC., Columbus, IN 47202-3005 U.S.A.
Data Sheet : DS - 1478