![Page 1: 400-25 OPERATION · •Connect supplied suction hose and dipleg to the 3 way fill valve. •Place dipleg into chemical concentrate drum. •Open 3 way fill valve (handle facing outwards)](https://reader035.vdocument.in/reader035/viewer/2022071406/60fbc9baac9da0424a530e16/html5/thumbnails/1.jpg)
400-25 OPERATION
![Page 2: 400-25 OPERATION · •Connect supplied suction hose and dipleg to the 3 way fill valve. •Place dipleg into chemical concentrate drum. •Open 3 way fill valve (handle facing outwards)](https://reader035.vdocument.in/reader035/viewer/2022071406/60fbc9baac9da0424a530e16/html5/thumbnails/2.jpg)
General Information
• Completely self-contained unit.
• Designed to apply all of Rusmar’s Long Duration Foams.
• Foam is dispersed via a 200’/ 60.96m hose.
• Manual release/electric rewind hose reel.
• Freeze Protected for winter operation.
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Safety Notes
• The 400-25 is extremely heavy, always place wheel chocks under unit when not being towed.
• When in use the 400-25 engine and compressor can get very hot, avoid burns.
• The hydraulic, foam and air system operate under high pressure always vent before servicing.
• Avoid rotating parts.
• Always wear proper PPE, Rusmar recommends. Safety shoes, gloves, safety glasses and hearing protection.
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General Preparation
• Inspect system for any leaks or apparent damage that may affect the operation of the unit.
• Check and fill if necessary all fluid reservoirs, engine oil, compressor oil, hydraulic oil, Cat pump oil.
• Fill the diesel fuel tank.
• Check the diesel engine coolant level.
• Check that the hydraulic system is disengaged, handle in the vertical position.
• Check that the Main Control valves (labeled “Comp Air” and “Chemical”)are in the “Off” position.
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System Start Up.
• At compressor control panel, depress “Bypass” button and turn ignition switch to start position.
• Once running switch the “Compressor” unloader switch to the “Run” position.
• Proceed to “Main Foam Control” panel at rear of unit.
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System Start Up.
Start/
Run
Switch
Compressor
Unloader
switch
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System Filling
• Connect supplied suction hose and dipleg to the 3 way fill valve.
• Place dipleg into chemical concentrate drum.
• Open 3 way fill valve (handle facing outwards).
• Make certain that all safety clips are in place.
• Slowly engage “Sandpiper Control” ball valve, located on the right side of the “Main Foam Control” panel.
• Once apparent that the unit is pumping, increase valve opening to half way.
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System Filling Cont.
• Engage “Hydraulic Control Valve” located to the right of the “Main Foam Control” panel by pulling handle towards the rear of the unit.
• Pump in one drum of concentrate to make a full load of solution. 6.5:1
• Once drum is empty, fill the balance of the unit with water.
• Close valve, disconnect dipleg and fill hose and store.
• Disengage “Hydraulic” control valve by pushing handle towards the tank.
• Shut down unit if necessary. Turn “Unloader” to start position, turn ignition to “Off” position.
• Be careful of dipleg placement as stones or other debris can be introduced
into the pumping system causing damage.
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System Filling Cont.
Sandpiper
control
valve
Hydraulic
Control Valve
Fill Port
Foam
Control
Panel
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Foaming
• Once ready to foam:
• Restart unit and compressor as outlined previously.
• Engage “Hydraulic” control valve.
• With the foam discharge hose firmly held, open the “Chemical” and “Compair” valves at the “Main Foam Control” panel.
• Foam will start within a few seconds.
• Cover desired area.
• Note operating pressures:
• Cat pump 400 PSI
• Air Pressure 105-110 PSI
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Foaming Shut Down
• Once desired area is covered:
• At “Main Foam Control” panel, close the “Chemical” valve and reduce the “Compair” to half way.
• Make certain that the operator has a firm grasp on the discharge hose as pulsing may occur.
• Once discharge line has been purged, close “Compair” valve.
• If finished, disengage hydraulic system, rewind hose and follow previous shut down sequence.
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Additional Notes • Diluted material can remain in the unit for up to 30 days.
• When using previously diluted material, start the unit and engage the “Hydraulic” valve to remix the solution.
• Foam may be applied either with or without the nozzle.