Mounted in an Aluminium construction frame the pump consists of a driven hydraulic pump, which draws fuel from a 20 litre capacity reservoir via a gauze suction strainer.  Fuel is pumped through a reinforced hose to an adaptor connected to the 63mm (2 ½”) underwing nozzle fitted to the end of an aircraft refuelling hose.

The air-driven hydraulic pump is fed from an outside air pressure supply source via an adjustable air pressure regulator/filter and fitted with a pressure gauge.  The hydraulic pump is capable of delivering 40bar (600 psi), but the rated test pressure is restricted to 20bar (300 psi) when testing the hoses using the Pressure Test Coupling DBA10605.

The outlet side of the pump is fitted with a calibrated gauge and an isolating valve, which is set closed when the correct pressure is reached.  A pressure release valve releases the ‘locked in’ pressure into the reservoir once the pressure test has been completed.

The inlet to the air pressure regulator terminates in a quick disconnect coupling (both halves of the coupling are provided)  The removable female half coupling is fitted with a hose tail for connection to a suitable 6mm (1/4”) bore air supply hose.  The fuel reservoir has a fill cap and drain valve.

Just three connections are required to operate the pump.

• A filtered air supply not exceeding 7bar (100psi) to the pump via the air filter-regulating valve.  Please note: Under no circumstances must the applied air pressure to allowed to exceed 7.0bar (100 psi).
• A filtered fuel supply to the inlet valve from the tank.  A positive head of fluid is recommended for maximum performance.

Maintenance

After each use – Remove the air filter bowl and wipe away any moisture or water.

• Remove air filter bowl and wash air filter element in clean jet fuel.
• Clean thoroughly with compressed air jet and replace.
• Withdraw strainer element to drain reservoir. Wash thoroughly in clean jet fuel and replace