Aussie Pumps Eco-Clean TTL 1330 HYD Інструкція з експлуатації - Сторінка 11

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Sept 2018

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

Back pressure in supply hose

when gun shut off

Aussie Hydraulic Drive Blaster ... 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

Cracked pistons from dry running

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

Travel plug in use on pump

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

Dirty or worn low pressure valves

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

Replace pistons

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

Replace with breather plug

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

Adjust the unloader at the operating pressure.

Clean valve (removing lime deposits etc).

Grease parts before installing.

Clean or replace valves