MODELS JU4H-NL14 JU4H-NL24
FIRE PUMP ENGINES
JU4H-NL34 JU4H-NLK4 JU4H-NL54
JU6H-NL34 JU6H-NLM4 JU6H-NL54
JU6H-NL74 JU6H-NLR4 JU6H-NL84
NON-LISTED NFPA LIKE - HEAT EXCHANGER ENGINES *GROSS POWER RATINGS BHP/KW RATED SPEED
JU4H MODEL
2800
3000
NL14
62
NL24
88
66 91
68
NL34
129
96 129
96
NLK4
146
109 146
109
NL54
160
119 160
119
NL34
197
147 197
147
NLM4
220
164 220
164
NL54
238
178 238
178
NL74
247
184 247
184
NLR4
264
197 264
197
NL84
285
213 302
225
46.5 64
48
JU6H MODEL
* Power rating: a 10% deduction in power must be made to determine the maximum allowable pump load.
SPECIFICATIONS JU4H MODELS ITEM
NL14
NL24
NLK4
Compression Ratio
N 424 (935)
NL74
NLR4
NL84
TRWA 750 (1657)
17.6:1
766 (1693)
17.0:1 12.5 (766) 4 Stroke Cycle - Inline Construction
Bore & Stroke - mm (in.)
Engine Series
NL54
CounterClockwise (CCW) 413 (910)
Engine Type
Wiring Diagram
NLM4
T
Displacement - L (cu. in.)
Installation Drawing
NL34
6
Rotation* Weight - kg (lb)
NL54
4
Number of Cylinders Aspiration
NL34
JU6H MODELS
127 x 165 (5.00 x 6.50) D - 525
D - 526
C07575 (DC Electrical Wiring) CO7651 (AC Heater Wiring) John Deere 4045 Series
John Deere 6068 Series
Abbreviations: CW – Clockwise TJWA – Turbocharged & Aftercooled TRWA – Turbocharged with Raw Water Aftercooling *Rotation viewed from Heat Exchanger / Front of engine • CCW Rotation is not available • Engine intended for Indoor use or inside weatherproof enclosure only
† ENGINE RATINGS BASELINES • Engines are rated at standard SAE conditions of 29.61 in. (7521 mm) Hg barometer and 77˚F (25˚C) inlet air temperature [approximates 300 ft. (91.4 m) above sea level] by the testing laboratory (see SAE Standard J 1349). • A deduction of 3 percent from engine horsepower rating at standard SAE conditions shall be made for diesel engines for each 1000 ft. (305 m) altitude above 300 ft. (91.4 m). • A deduction of 1 percent from engine horsepower rating as corrected to standard SAE conditions shall be made for diesel engines for every 10˚F (5.6˚C) above 77˚F (25˚C) ambient temperature.
• Note: Engines are not to be used for continuous duty. Engines are to be used only for stationary emergency standby fire pump service. According to NFPA 25 engines are to be tested 30 minutes per week at no pump flow and full pump flow once per year.
GUARANTEED POWER AT ANY SPEED • Although BHP ratings are shown at specific speeds, Clarke engines can be applied at any intermediate speed. To determine the intermediate certified power, make a linear interpolation from the Clarke certified power curve. Contact Clarke or your Pump OEM representative to obtain details. Note: JU6H-NL34/M4/74/R4/84 Engines cannot be used between 2650 and 2750 RPM.
MODELS JU4H-NL14 JU4H-NL24
FIRE PUMP ENGINES
JU4H-NL34 JU4H-NLK4 JU4H-NL54
JU6H-NL34 JU6H-NLM4 JU6H-NL54
JU6H-NL74 JU6H-NLR4 JU6H-NL84
ENGINE EQUIPMENT EQUIPMENT
STANDARD
OPTIONAL
Air Cleaner
Direct Mounted, Washable, Indoor Service
Alternator Exhaust Protection*
12V-DC, 42 Amps; w/Belt Guard
Coupling
Bare Flywheel
Exhaust Flex Connection Flywheel Housing Flywheel Power Take Off Fuel Connections* Fuel Filter Fuel Injection System Engine Heater* Governor, Speed Heat Exchanger Instrument Panel
SS Flex, Clamped S.A.E. #3 11.5” S.A.E. Industrial Flywheel Connection
Direct Mounted, Washable, Indoor Service with drip guard 24V-DC, 40 Amps; w/Belt Guard Blankets on JU4H-NL14/24, Metal Guards on Manifolds & Turbo on JU4H-NL34/K4/54; JU6H-NL34/M4/54/74/R4/84 Falk Coupling, Engine Half on JU4H-NL14/24/34/K4/54, JU6H-NL34 - 1070T10; JU6H-NLM4/54/74/R4/84 - 1080T10 Drive Shaft & Guard JU4H-NL14/24 - SC41A; JU4H-NL34/K4/54 - SC55A; JU6H-NL34/M4/54 - SC55L; JU6H-NL74/R4/84 - SC61L SS Flex, NPT
Junction Box Lube Oil Cooler Lube Oil Filter Lube Oil Pump Manual Start Controls Overspeed Control Raw Water Solenoid Operation Run-Stop Control Run Solenoid Silencer Starters Throttle Control Water Pump
Fire Resistant Flexible Supply & Return Lines Primary Filter w/Priming Pump Stanadyne Direct Injection 240V-AC, 1500 Watt, 120V-AC, 1500 Watt Constant Speed, Mechanical Tube & Shell Type, 14 Bar (206 psi) w/BSP Connections English & Metric, Tachometer, Hourmeter, Water Temperature, Oil Pressure & Two (2) Voltmeters Integral with Instrument Panel; For DC Wiring Interconnection to Engine Controller Engine Water Cooled, Plate Type Full Flow w/By-Pass Valve Gear Driven, Gear Type On Instrument Panel Electronic w/Reset & Test on Instrument Panel Automatic from Engine Con-troller & from Emergency Local Control On Instrument Panel With Control Position Warning Light 12V-DC Energized to Run
Two (2) 12V-DC Adjustable Speed Control, Tamper Proof Poly-Vee Belt Drive w/Guard
*Required to Meet NFPA-20
Manual Stop Lever 24V-DC Energized to Run, 12V-DC Energized to Stop 24V-DC Energized to Stop Optional Two (2) 24V-DC
MODEL NOMENCLATURE: (8 Digit Models) J ohn Deere Base Engine 250 Series 6 Cylinders Heat Exchanger Cooled
UK, Ltd. Grange Works, Lomond Rd., Coatbridge, ML5-2NN United Kingdom Tel +44-1236-429946 Fax +44-1236-427274 www.clarkefire.com ®
C131176 4/09
JU6H-NL34
Power Curve Number Not Listed
Fire Protection Products, Inc. 3133 E. Kemper Rd., Cincinnati, Ohio 45241 United States of America Tel +1-513-771-2200 Fax +1-513-771-0726 www.clarkefire.com ®
Specifications and information contained in this brochure subject to change without notice.
Printed in U.S.A.
