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Optional Engines and Engine Accessories:
Diesel Engine:
Cummins QSB3.3L Turbo, EPA Tier 3:
Cummins Model QSB3.3 turbocharged diesel engine. Water cooled, 4-cylinder,
199 CID, 3.74-inch bore, 4.53-inch stroke, 99 HP at governed speed of 2500
RPM. Maximum torque is 304 ft-lbs at 1400 RPM. 120-amp alternator included.
30-gallon fuel tank capacity. High temperature and low oil pressure shutdown
included in engine management system. Throttle control switch for setting engine
speed at 1200 or 1800 RPM. Charge air cooler and grid heater included. (Net
Weight: 200 pounds)
Spark Arrester Muffler:
Spark arrester muffler used in addition to standard muffler. (Net Weight: 10
pounds)
Catalytic Converter:
Catalytic converter for diesel engines. Reduces engine emissions. (Net Weight:
10 pounds)
Engine Heater:
Heater for engine. Engine coolant heater installed with hoses in coolant system
to circulate warm water through engine. Plugs into 120V AC extension cord.
1500 watts.
Cummins QSF3.8L Turbo, EPA Tier 4F:
Cummins QSF3.8 Tier 4 Final turbocharged diesel engine. Water cooled, 4-
cylinder, 229 CID (3.8L), 4.02-inch (102 mm) bore, 4.53-inch (115 mm) stroke,
120 HP (89 kW) at governed speed of 2500 RPM. Maximum torque is 360 ft-lbs
(488 Nm) at 1600 RPM. 135-amp alternator included. 30-gallon (114 L) fuel tank
capacity. High temperature and low oil pressure shutdown included in engine
management system. Throttle control switch for setting engine speed at 1600
RPM. Air intake pre-cleaner; Charge air cooler; 550 watt, 120 vac, block heater;
and grid heater included. Net Weight: 766 pounds (348 kg)
Cummins Tier 4 Final Aftertreatment
To adhere with Tier 4 Final requirements a Cummins exhaust aftertreatment
system is included on every QSF 3.8L engine. This system consists of an SCR
canister, DEF tank, and DEF tank dosing system. To maintain the system, make
sure the DEF tank is kept filled with Diesel Exhaust Fluid such as BlueDEF or
AdBlue. A warning will arise on the display and the engine will derate if the tank is
empty or filled with non-conforming DEF fluid. The SCR will maintain itself and
periodically undergo a cleaning process known as regeneration. This occurs
when soot levels get high within the SCR and can also be initiated by the
operator through the display menu. When regenerating, the idle rpm may rise to
increase the temperature of the exhaust gasses. To inhibit a regeneration, the
user may cancel it through the display, however on the third prompting to run a
regen the machine will not allow the user to cancel.
To start a regen, touch the bottom left button on the display(menu button). Open
the “utilities” menu. Use the right page down button and open the exhaust filter
menu. From there the operator can request or inhibit a regeneration.
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