8.INSTALLATION

Engine life, ease of maintenance and inspection, frequency of checks and repairs, and operating cost all depend on theway in which the engine is installed. Carefully observe the following instructions forinstalling the engine.

8-1INSTALLING

When mounting the engine, carefully examine its position, the methodof connecting it to a load (machine), the foundation, and the method of supporting the engine.

8-2VENTILATION

Fresh air is necessary for cooling theengine and burning the fuel.

In cases where the engine is operated under a hood or in a small room, temperature rise in the engine room can cause vapor lock, oil deterioration, increased oil consumption, loss of power, piston seizure, shorter engine life, etc., making it impossi- ble to operate the engine properly. It is necessary, therefore, t o provide a duct orbaffle t o guide cooling air to theengine to prevent recirculation ofthe hotair used for engine cooling, and temperaturerise of the load (machine).

Take stepsas necessary t o keep the engine room temperature below 60°C even in the hottest period of the year.

8-3EXHAUSTGASDISCHARGE

Exhaust gas is noxious. When operating the engine indoors, be suret o discharge the exhaust gas outdoors. If a long exhaust pipe is used in such a case, the internal resistance increases causing loss of engine power. Thus pipe inside diameter must in crease in proportion t o exhaust pipe length.

Exhaust pipe: Less than 3 m long, pipeinside diameter 30 mm, Less than 5 m long, pipeinside diameter 38 mm.

8-4

FUELSYSTEM

50 - 500 mm

If the fuel tank is removed from the enginewhen mounting the enginewitha machine, set the fuel tank

above the fuel injection pump. If the tankis set too low, the fuelwill not be supplied.

 

When piping be careful of heat conduction, pipe size, bends, and leaks from the joints and make the fuel pipe

as short as

possible to prevent air and vapor from being trapped.

 

8-5 POWER TRANSMISSION to DRIVEMACHINES

 

1.

BeltDrive

 

Take the following notes into consideration.

1)V-belts are preferabletoflatbelts.

2 ) The driving shaft of the engine must be parallel to thedriven shaft of the load.

3).The driving pulley of the engine must be in line with the driven pulley of the load.

4)Install the engme pulley as close to the engine as possible.

5 ) If possible, span the belt horizontally.

6 ) Disengage the load when starting the engine.

If no clutch is used, use a belt tension pulley or the llke.

2.Flexible Coupling

When usinga flexible coupling,runout andmisalignmentbetween the driven shaft andengine shaftmustbeminimized. Runout and misalignment tolerance are specified by the coupling manufacturer,

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Subaru Robin Power Products DY41, DY35, DY30 manual Installation
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DY41, DY30, DY35 specifications

Subaru Robin Power Products have built a solid reputation in the realm of portable engines and generators, particularly with their DY35, DY30, and DY41 models. These engines are extensively used for various applications, ranging from construction to agricultural equipment, owing to their reliability and efficiency.

The Subaru DY35 engine exemplifies performance with a displacement of 35cc. Its lightweight design ensures easy portability, while its robust construction provides durability in demanding environments. Featuring a two-stroke cycle, the DY35 offers a high power-to-weight ratio, making it ideal for handheld equipment and compact machinery. Key characteristics include its advanced electronic ignition system that promotes easy starting and reliable operation. The DY35 also boasts superior fuel efficiency, which translates to lower operational costs over time.

Moving on to the DY30, this engine is designed with versatility in mind. It has a slightly smaller displacement of 30cc, making it a great choice for various power tools and smaller machinery. The DY30 is known for its excellent torque delivery, which allows users to tackle challenging tasks without the need for frequent refueling. One of its standout features is the automatic lubrication system that keeps the engine running smoothly while minimizing wear and tear. This feature significantly extends the engine’s life, making it a favorite among users looking for long-term performance.

The DY41 takes a step up in power with a displacement of 41cc, making it suitable for heavier-duty applications. Designed for larger equipment, the DY41 is renowned for its high torque and robust construction. It also includes an innovative cooling system that effectively dissipates heat, ensuring optimal engine performance in prolonged usage scenarios. The DY41 is equipped with advanced vibration-dampening technology, which enhances user comfort and reduces fatigue during operation.

Each of these Subaru Robin engines incorporates fuel-efficient technologies that reduce emissions and comply with environmental regulations. They are built to withstand the rigors of demanding work environments while providing reliable power. With their distinct features and durable designs, the DY35, DY30, and DY41 engines continue to be sought-after choices for professionals and hobbyists alike, underscoring Subaru's commitment to innovation and quality in power products.
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