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Onan DJA Series User Manual

Onan DJA Series
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SPECIFICATIONS
Nominal dimensions of engine (inches)
Height 24-1/2 (622 mm)
Width 19-1/8 (486 mm)
Length 28-3/16 (716 mm)
Approximate Weight (pounds) •.. 230 (104 kg)
Number of Cylinders. 1
Displacement (cubic inch) 30 (.49 litre)
Bore 3-1/4 (82.55 mm)
Stroke 3-5/8 (92.08 mm)
HP at 2400 rpm (nominal) 7.3 (5.4 kW)
Compression Ratio 19:1
Main Bearings are Steel-Backed Bronze, Precision Type for
Replacement (quantity) 2
Connecting Rod Bearings Tri-Metal Replaceable Yes
Piston Rings (chrome plated) - 3rd Compression Ring NOT Plated
Oil Control 1
Compression 3
Hardened Chrome Alloy Faced Valves Yes
Hardened Chrome Replaceable Valve Seats . Yes
Valve Rotator: Yes
Governor (internal flyball type - externally adjustable} Yes
Nominal Battery Voltage '. 12
Battery Size
SAE Group IH Two
Amp/Hr. SAE 20 Hr. (nominal) 105 (378 kC)
Solenoid Shift Starter ' Yes
Engine cooling air CFM at 2400
rpm*
' 560 (15.86 rrvVmin)
Total cubic feet per minute of air required 613.8 (17.38 mVmin)
Combustion Air CFM at 2400 rpm 21 (.6 mVmin)
Inlet Vent (sq. ft.) 7 (.7 m
2
)
Outlet Vent (sq. in.)* 64 (.04 m
2
)
Glow Plug and Air Heater to Aid Starting Yes
Injection Pump PLB
Primary and Secondary Fuel Filters Yes
Fuel Pump Lift 6 ft. (1.8 m)
Oil Pump (Gear Type) Yes
Oil Filter (Full Flow) " Yes
Oil Capacity (U.S. quarts)! 2-1/2 (2.4 litres)
Exhaust Connection (Pipe-Tapped) ; 1-1/4 (31.75)
Power Take-off (inches)
Shaft Length 4 (101.16 mm)
Shaft Diameter 1-3/4 (44.45
mm
)
Keyway Length 3 (76.2 mm)
Keyway Width 3/8 (9.5 mm)
Keyway Depth 3/16 (4.76 mm)
* - Pressure-cooled type air flow.
- Area when ventiduct is used; without duct, make vent as large as possible.
t - Add 1/2 quart (.5 litres) for oil filter.
3

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Onan DJA Series Specifications

General IconGeneral
BrandOnan
ModelDJA Series
CategoryEngine
LanguageEnglish

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