NSN: 4920-15-207-3005

Hydraulic test stand electric motor driven 30 GPM at 4500 psi, max operating pressure 4700 psi at reduced flow.  Hydraulic systems test and checks on military JSF-F35 aircraft.

Main Features

Hydraulic Test Stand mounted on a steerable trailer (steel structure) equipped with four pneumatic wheels, towing through a tow-bar at the maximum of 30 Km/h.

Rear wheels are equipped with hand operated drum brake.

2 Axial piston type, high pressure, electric motor driven pumps with variable displacement and adjustable working pressure up to 30 GPM at 4500 psi, maximum operating pressure 4700 PS.

2 Axial piston type high pressure pumps, each coupled to booster pump, with variable displacement and adjustable working pressure.

2 High Pressure 3 μ filters on delivery line equipped with differential pressure switches for filters clogged

2 Low Pressure 3 μ filter on booster lines.

Stainless steel reservoir, capacity 240 litres, equipped with:

• inspection hole
• fluid level sight gauge
• 2 drain ports
• filling and drain port
• suction and return port

The HTS may be used with aircraft reservoir or test stand reservoir.

Sampling port to check the fluid class (according to NAS 1638).

Environmental working temperature: from -40°C (-40°F) to 48°C (120°F).

Fluid operating temperature from -10°C to 75°C; max fluid temp. for alarm shutdown 85°C.

Working fluid: MIL-PRF-83282C or MIL-PRF-87257.

HTS is a dual system (2 completely independent branches, each branch composed by 1 delivery line and 1 return line) and it is possible to obtain different pressure and different delivery flow on both circuits simultaneously. Aircraft reservoir filling system. Return back pressure system, adjustable up to 140 PSI.

The test stand is equipped with a Laser Particle Counter, for continuous monitoring the hydraulic fluid, without sampling it, for presence of particles and/or water presence into the fluid.

The test stand is qualified i.a.w. MIL-STD-461E (electromagnetic compatibility) and MIL-STD810G (adverse environmental condition).

Instrumentation

H.P. gauge, branch “A”, double scale F.S. 6000 PSI, 40 MPa, K 0,6% f.s., filled with silicon oil for low temp

H.P. gauge, branch “B”, double scale F.S. 6000 PSI, 40 MPa, K 0,6% f.s., filled with silicon oil for low temp

L.P. gauge, return and booster pressure, F.S.160 PSI, 1000 KPa, K 0,6% f.s., filled with silicon oil for low temp

Digital flowmeter, LPM or GPM readout; Digital thermometer, °C readout.

Fluid level indicator, Hour counter.

Electric Motor

Power rating: two electric motors 22 KW each.

Power supply: 400VAC 50Hz or 440/460VAC 60Hz, threephase +GND, 125A.

Accessories

Standard: power supply cable length 15 m with plug 3P+GND 125A according to CEE17 (CEI23-12); two delivery H.P. flexible hoses (size 3/4″ length 10 m), two return L.P. flexible hoses (size 1”1/4″ length 10m); one drainage flexible hose (size 3/4″ length 10m).

Test stand textile cover; O&M manual, CoC, Test report, gauge calibration report and fluid contamination report.

Fuse kit as spare part.