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JMP/LUFT/D/4972/C500
Size: (L) 3099mm x (W) 1182mm x (H) 1498mm Weight: (Dry) 612Kg
INTRODUCTION
The 2 x 50 gallon multi-engine compressor wash rig (JMP/LUFT/D/4972/C500) comprises two 227 litre
stainless steel pressure vessels mounted on a rigid steel chassis, supported by three heavy duty wheels
with 16” super elastic tyres, one of which is mounted on a heavy duty steering castor unit. A drawbar,
which can be locked in the upright position for storage and safety, is attached to the steering castor unit
with a drawbar operated parking brake acting on the front wheel when locked in the upright position.
Each tank is fitted with a filler cap, gauze strainer, pressure gauge, sight glass, pressure relief valve,
3/4” BSP drain valve and a 9kW immersion heater.
A 3/4”, 20 ft long, outlet delivery hose is stowed on the right side of the rig as viewed from the front,
and a 1/2”, 20 ft long, outlet delivery hose is stowed, together with a 1/4”, 20 ft long blow-off hose
on the left side of the rig for clearing the sensing tubes/hoses after a wash. Rubber protective collars
are installed on the end of each hose to protect the couplings from damage.
OPERATION
The fluid in the tanks is pressurised by four rechargeable onboard nitrogen cylinders
(a MS28889-2 Schrader charging valve is fitted to the rig for in-situ recharging) controlled by a regulator
and distributed to the top of each pressure vessel via a nitrogen inlet manifold. There is also an
optional Air Inlet Kit available to enable the connection of offboard compressed air or nitrogen if required.
Once pressurised, the fluid is forced up the outlet stack pipe to the appropriate fluid outlet isolation
ball valve. From there it is directed through the filter, to the 3-way engine selection ball valve, which
controls the output to the appropriate tooling via the outlet hose connection to the twin hose assembly.
The rig has two 9kW immersion heaters (one for each pressure vessel) requiring a 115V/200V,
3-phase, 400Hz electrical power supply to heat the tanks to a temperature of 70oc in one hour.
The necessary power is supplied from a ground power unit (GPU) or hangar power supply.
A 24V battery installed in the rig’s electrical enclosure provides the power required for the interlock
(necessary for the power to connect) to operate.
PRESSURE SYSTEM MAINTENANCE
There are routine maintenance tasks outlined in the relevant section of the operations manual, and we
are highlighting some of the most important here on the website. Click here to bring up maintenance
tips on keeping the rig's high pressure system working perfectly.
