1
Trouble Shooting
Driveshaft noisy
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PTO shaft not secured properly to shafts.
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Universal joint crosses worn.
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PTO geometry not correct.
Air volume reduced
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Fan mesh blocked with leaves or debris.
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Not operating at full speed of 540 rpm.
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Fan gearbox not in gear.
Poor tank agitation
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Chemical left in tank whilst not operating.
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Chemical insufficiently mixed before filling.
Pump and hoses vibrating.
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Pump surge chamber pressure incorrectly adjusted or surge diaphragm ruptured.
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Air entering the suction line through loose or damaged fittings.
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Pump valves or valve springs worn or damaged.
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Worn nozzles or nozzles too big for the capacity of the pump.
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Air trapped in filter or suction lines.
Pump does not prime
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No liquid in tank or not covering suction inlet.
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Suction filter blocked.
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Suction filter stop valve closed.
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Suction filter bowl loose or missing O-ring.
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Suction line loose allowing pump to suck air.
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Bypass control not in by-pass position.
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Pump valve springs broken or valves worn.
Pump does not reach correct pressure
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Pump not operating at full 540 rpm.
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Suction filter blocked.
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Suction filter stop valve partly closed
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Pressure regulator not correctly adjusted
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Pressure regulator valve and seats worn.
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Pressure gauge faulty
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Pump diaphragms ruptured (pump oil grey).
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Worn nozzles or capacity of nozzles greater
than capacity of the pump.
Fan noisy and/or vibrating
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Gearbox bearings worn.
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Fan damaged or out of balance.
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PTO incorrectly installed.
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PTO geometry not correct.
