Hardi RANGER PRO, Инструкция

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7 - Fault finding
7.2
CONTROL/REMEDY
Air leak on suction line.
Incorrect assembly.
Filters clogging.
Pressure filters beginning to clog.
Air is being sucked into system.
Damaged diaphragm.
PROBABLE CAUSE
Check if suction filter O-ring is sealing.
Check suction tube and fittings.
Check tightness of pump diaphragm and valve covers.
Restrictor nozzle in Self-Cleaning Filter not fitted.
Safety valve spring for Self-cleaning filter not tight.
Too little distance between yellow suction pipe and tank bot-
tom.
Clean all filters. Fill with cleaner water. If using powders, make
sure agitation is on.
Clean all filters.
Make sure bottom valve on CycloneFilter is not left in closed
position (marked with 1 dot) after flushing boom. Operating
position (marked with 2 dots) keeps CycloneFilter clean.
Check tightness/gaskets/O-rings of all fittings on suction side.
Replace. See changing of valves and diaphragms.
No spray from boom when turned on.
Lack of pressure.
Pressure dropping.
Pressure increasing.
Formation of foam.
Liquid leaks from bottom of pump.
FAULT
Air in system.
Pump valves blocked or worn.
Nozzles worn.
Excessive liquid agitation.
Fill suction hose with water for initial prime.
Check for obstructions and wear.
Check flow rate and replace nozzles if it exceeds 10%.
Reduce pump r.p.m.
Check safety valve is tight.
Ensure returns inside tank are present.
Use foam damping additive.
Suction/pressure filters clogged.
Defect pressure gauge.
Tank is air tight.
Clean filters.
Check yellow suction pipe is not obstructed or placed too
near the tank bottom.
Check for dirt at inlet of gauge.
Check vent in tank lid is clear.
Sucking air towards end of tank load. Lower pump r.p.m.
Liquid system