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 | 3-cylinder, liquid-cooled gasoline engine (1420) |
|  | 3-cylinder Yanmar diesel engine (1435 and 1445) |
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The 1400 Series II Front Mowers are powered by liquid-cooled, 3-cylinder Yanmar engines. The 1420 Series II Front Mower is powered by the 3TG 3-cylinder Yanmar liquid-cooled gas engine. Yanmar 3-cylinder TNV Series diesel engines feature a high torque reserve that provides plenty of power. The 1435 and 1445 mowers meet EPA interim tier IV emission standards.
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1420 Series II
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1435 Series II
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1445 Series II
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Fuel
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Gas
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Diesel
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Diesel
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hp
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Gross at max. rpm
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25.6
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26
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30.9
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Net
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24
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24
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29.5
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Displacement (cu. In.)
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53.6
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68
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81.2
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Max. torque (lb-ft)
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47.6
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45.5
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63.6
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Key features of the engine include:
- Economical cast-in block cylinder design for good cooling and long life
- Indirect fuel injection (model 1435)
- Direct fuel injection (model 1445)
- Injects fuel directly on top of pistons for more efficient combustion
- Delivers more horsepower per gallon of fuel
- Improves starting
- Develops more horsepower per gallon of fuel; improves starting
- Aluminum alloy pistons with built-in steel struts are lightweight to reduce connection rod bearing loads and provide good heat transfer characteristics
- Design permits tighter tolerances and neutralizes expansion of the piston, thereby reducing blow-by gas and noise from the piston slap
- Higher top rings on the piston and a thinner head gasket greatly reduce the volume of unburned waste gases and increase combustion efficiency
- Timing gears and injector drive gears utilize helical profile gears to help lower engine noise; gear teeth have a newly designed ''roll-off'' profile, giving almost no clash, no noise, and no backlash
- Fuel filter with replaceable element
- Full-pressure intake manifold provides quick starts in temperatures down to 0°F. (Optional engine coolant heater attachment will assist starting under more extreme conditions.)
- Auto-bleed fuel system; there's no need to prime the system if the tractor runs out of fuel; the system will self-prime the injection pump, lines and injectors, providing fast fuel recovery
- Key start and shutoff eliminates fuel shut-off knob
- Electric solenoid shuts fuel supply off immediately when key is turned off
- See-through coolant recovery tank permits operator to check coolant level without removing radiator cap
- Enclosed engine compartment keeps out debris and lowers sound levels
- Sealed radiator compartment keeps trash and debris on outside of hood
- Excellent torque for plenty of lugging power when operating in tough mowing conditions
- Full-pressure lubrication for positive lubrication, even when operating on slopes
- Dual-element, dry-type, replaceable air cleaner; completely sealed for effective cleaning
- 90 percent to 95 percent of dirt is ejected before it reaches the paper element
- Secondary safety element provides additional filtering
- Progressive-type air restriction indicator to let operator know when the filter needs servicing
- Automotive-type alternator (55 amp) provides plenty of charge to the battery
- Automatic initiation of air heater for easier cold-weather starting; automatic initiation of glow plugs (model 1435) and air heater (model 1445) for easier cold-weather starting
- Automotive-sensing system tells operator when engine is ready to start
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| Rear-mounted radiator |
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 | Rear-mounted radiator |
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- Rear-mounted radiator keeps noise away from operator and is easy to service
- Isolated engine mounting reduces engine vibration at operator's station for more comfortable operation
- Designed to meet all necessary EPA emission standards
- Overhead valve (OHV) for efficient combustion
- Liquid-cooled for more consistent operating temperatures
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| Standard flip-out oil cooler |
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 | Front mower oil cooler |
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Oil cooler is made from steel to eliminate fin damage from pressure washing and cleaning. It easily flips out for cleaning and accessibility to the radiator.
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| Last Updated : 18-Sep-2010 |
