46
ALPHA
Fault
Probable cause
Control / remedy
Liquid system
No spray from boom
Air leak on suction line.
Check if suction filter O-ring is sealing.
when turned on.
Check suction tube and fittings.
Check tightness of pump diaphragm and
valve covers.
Suction/pressure filters clogged.
Clean filters.
Check suction pipe is not obstructed or placed
too near the tank bottom.
Lack of pressure.
Incorrect assembly.
Restrictor nozzle in Self-Cleaning Filter not fitted.
Safety valve spring for Self-Cleaning Filter
not tight.
Pump valves blocked or worn.
Check for obstructions and wear.
Defect pressure gauge.
Check for dirt at inlet of gauge.
Pressure dropping.
Filters clogging.
Clean all filters. Fill with cleaner water.
If using powders, make sure agitation is on.
Nozzles worn.
Check flow rate and replace nozzles if it
exceeds 10%.
Tank is air tight.
Check vent is clear.
Sucking air towards end of tank load.
Returns inside tank need relocation.
Pressure increasing
Pressure filters begining to clog.
Clean all filters.
Formation of foam.
Air is being sucked into system.
Check tightness / gaskets / O-rings of all fittings
on suction side.
Excessive liquid agitation.
Reduce pump r/min.
Check safety valve for Self-Cleaning Filter
is tight.
Ensure returns inside tank are present.
Use foam damping additive.
Liquid leaks from
Damaged diaphragm.
Replace. See Changing of valves and
bottom of pump.
diaghragms.
Summary of Contents for ALPHA 2000
Page 5: ......
Page 6: ......
Page 7: ......
Page 9: ......
Page 16: ......
Page 24: ......
Page 25: ......
Page 26: ......
Page 27: ......
Page 28: ......
Page 30: ......
Page 31: ......
Page 32: ......
Page 33: ......
Page 36: ......
Page 37: ......
Page 38: ......
Page 39: ......
Page 40: ......
Page 41: ......
Page 42: ......
Page 51: ......
Page 52: ...52 ALPHA Notes...