Installation - Robin DY23-2D Service Manual

8. PRECAUTIONS FOR MOUNTING THE ENGINE ON THE
EQUIPMENT
The installation of an engine to the equipment effects greatly to the ease of maintenance.
8- 1
INSTALLATION
When designing the equipment, pay a sufficient attention to the mounting position,
coupling methode with the equipment, base and supports.
8
-
2
VENTILATION
Engine requires a sufficient amount of clean and fresh air for. combustion of fuel and
cooling.
If the engine is covered with an enclosure, or the engine is operated in a small room,
the engine may overheats unless a sufficient amount of fresh air is supplied from the
outside of the engine room.
High surrounding temperature also causes the deterioration of engine oil, increased oil
consumption, lower output, and piston seizure resulting in the shorter engine life.
Therefore, it is necessary to provide a duct or a baffle to the engine to prevent
recirculation or reflection of hot cooling air.
A prudential attention have to be paid to keep the engine room temperature below 50°C
(122" F).
8 - 3 EXHAUST
GAS
Exhaust gas is noxious. Be sure to discharge exhaust gas outdoors
when operating the
engine indoors or in a poorly ventilated area such as in a cave, tunnel, etc.
If an exhaust pipe extension is used to discharge exhaust gas, be careful of the inner
diameter of the pipe to prevent power loss.
/
Recommendation of exhaust pipe extension
:
Less than 3 m long
:
inner diameter 35 mm.
Less than 5 m long
:
inner diameter 38 mm.
8 - 4 FUEL SYSTEM
If the fuel tank is separately mounted on the equipment from the engine, be sure to
set the bottom
of fuel tank not less than 50 mm higher than the
fuel injection pump.
If the tank is mounted too low, the fuel may not be supplied properly to the engine.
When piping the engine, be carefuI of heat conduction, pipe size, bends, and leaks from
the joints and make the fuel pipe as short as possible t o prevent air and vapor from
being trapped.
-
56
-