AUSSIE ECO-CLEAN Hurricane Podręcznik konserwacji - Strona 6

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Australian Pump Industries

TROUBLE SHOOTING GUIDE

FAULT

Pump running normally

but pressure low on

installation

Fluctuating Pressure

Pressure low after period

of normal use

Pump Noisy

Presence of water in oil

Water dripping below

pump

Oil Dripping

Valves switches

repeatedly when gun is off

Leaky piston rod

Leaky by-pass at nominal

pressure

Pressure gauge shows

high pressure fluctuations

when shutting off gun

Motor hums when

switched on but does not

start

Aussie Monsoon & Hurricane ... Operation & Maintenance Manual

CAUSE

Pump sucking air

Valves sticking

Unloader valve seat faulty

Nozzle incorrectly sized

Worn piston packing

Valves worn

Valves blocked

Pump sucking air

Worn piston packing

Nozzle worn

Check valves worn

Check valves blocked

Unloader valve seat worn

Worn piston packing

Air in suction

Broken or weak suction or delivery

valve spring

Foreign matter in valves

Worn bearing

Excessive temperature of liquid

Oil seal worn

High humidity in air

Piston packing worn

O.R plunger retainer worn

Oil seal worn

Leaking gun and/or pressure pipe.

Leaky sleeve

Worn out kick-back valve body

Leaky seals

Defective O-Ring/Support Ring

Nozzle too small, too much water.

Worn out by-pass valve

Valve set too high above operating

pressure

Dirty valve

Main voltage too low

Spray gun not activated

Cross section of extension lead too

small

REMEDY

Check water supply and possibility of air

ingress.

Check and clean or replace if necessary

Check and replace

Check water supply and air ingress at

joints in suction line

Check and replace

Check and clean

Check and replace

Check water supply and connections on

suction line

Check and replace

Check and clean

Check and replace

Reduce temperature

Check and replace

Check and change oil twice as often

Check and replace

Check and replace if necessary

Renew gun, seal pressure pipe

Renew sleeve

Check and renew as necessary kick-

back valve plate and seat

Renew seals

Renew piston rod seals and examine

surfaces in guide case

Install larger nozzle

Examine and renew as necessary,

poppet (16 for APR-11 for VD valves -

10 for ADV-8 for Unifit valves), valve set

(14 or APR-12 for VD valves - 11for

AVD valves - 7 for Unifit) and by-pass

valve body.

Adjust the unloader at the operating

pressure.

Clean valve (removing lime deposits

etc). Grease parts before installing.

Check electrical connection

Activate spray gun when switching on

Use correct dimension extension lead