FIGURE 1-5. MAJOR COMPONENTS OF TEST STAND ENGINE

TM 55-4920-426-13&P

FIGURE 1-5. MAJOR COMPONENTS OF TEST STAND ENGINE

GASOLINE ENGINE

--4 cyclinder, air cooled. Horsepower varies with rpm, ranging from

25 hp at 1400 rpm to 37 hp at 2400 rpm.

LOW PRESSURE FILTER

--filters the hydraulic fluid of contamination before entering the high

pressure pump.

HIGH PRESSURE FILTER

--filters the hydraulic fluid of contamination before entering the

aircraft.

BOOST PUMP

--overcomes the pressure drop of the heat exchanger, the low

pressure filter and prevents unnecessary back pressure on the

aircraft.

OIL COOLER

--cools the hydraulic fluid in the system.

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