Manual Metabo HWW 3300-25 G (page 9 of 52) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Spanish, Norwegian, Finnish)

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• Pump clogged or defective.

- Disassemble and clean pump. Clean diffuser,

replace if necessary. Clean impeller, replace

if necessary. See section 11.

9.2 Pump not drawing in correctly or run-

ning very loudly:

• Insufficient water.

- Ensure there is a sufficient water supply.

• Pump not sufficiently filled with water.

- See section 6.7.

• Suction line leaking.

- Seal suction line, tighten screw-couplings.

• Suction height too high.

- Observe maximum suction height.

- Insert check valve, fill suction line with water.

• Intake filter (accessories) obstructed.

- Clean, replace if necessary.

• Check valve (accessories) blocked.

- Clean, replace if necessary.

• Water discharge between motor and pump,

shaft seal leaking. (Minor discharge of water

(max. approx. 30 drops per day) is normal with

the use of shaft seals).

- Replace shaft seal. See section 11.

• Pump clogged or defective.

- See section 9.1.

9.3 Pressure too low or pump runs continu-

ously:

• Suction line leaking or suction height too high.

- See section 9.2.

• Pump clogged or defective.

- See section 9.1.

• HWW...: Pressure switch incorrectly adjusted.

- Read off switch-on and switch-off pressure at

the pressure gauge (3) and check values (see

section 13 Technical Specifications). If an

adaptation is necessary, please contact

Metabo Customer Service. See section 11.

• HWW...: Pump starts up even after removal of

small volume of water (approx. 0.5 l).

- Check whether the pilot pressure in the pres-

sure vessel is too low. Increase pressure if

necessary. See section 9.4.

• HWW...: Water is running out of the air valve.

- Rubber bellows in pressure vessel leaking,

replace it. See section 11.

9.4 Increasing pilot pressure (only HWW...)

If – in the course of time – the pump starts up even

after the removal of a small volume of water

(approx. 0.5 l), the pilot pressure in the vessel must

be restored.

Note:

The pilot pressure cannot be read off at the

pressure gauge (3).

1. Unplug mains cable.

2. Open the discharge line (open water tap or

spray nozzle), allow water to drain off

completely.

3. Unscrew plastic cap on front face of pressure

vessel; the air valve is located behind it.

4. Mount air pump or compressor hose with a

"tyre valve" connection and pressure gauge on

the air valve.

5. Pump up to the specified pilot pressure (see

section 13. Technical Specifications).

6. Connect device again and check operation.

Use only genuine Metabo accessories.

Use only accessories that fulfil the requirements

and specifications listed in these operating instruc-

tions.

For a complete range of accessories, see

www.metabo.com or the catalogue.

Danger! Repairs to this device must be

carried out by qualified electricians only!

If you have Metabo devices that require repairs,

please contact your Metabo service centre. For

addresses see www.metabo.com.

For shipment: drain pump and vessel completely

(see section 8.3).

You can download spare parts lists from

www.metabo.com.

Observe national regulations on environmentally

compatible disposal and on the recycling of

disused machines, packaging and accessories.

Only for EU countries: Never dispose of

power tools in your household waste! In

accordance with European Guideline 2002/

96/EC on used electronic and electric equipment

and its implementation in national legal systems,

used power tools must be collected separately and

handed in for environmentally compatible recy-

cling.

Explanatory notes on the specifications on page 3.

Changes due to technological progress reserved.

The pump characteristic curve (diagram on page

3) shows the conveying capacity that can be

reached depending on the conveying height

(suction height 0.5 m and 1" suction hose).

U =Mains voltage

f=Frequency

=Rated power

I =Rated current

C=Operating condenser

n =Rated speed

V,max

=max. conveying capacity

h,max

=max. conveying height

p,max

=max. conveying pressure

=Pressure switch: switch-on pressure

=Pressure switch: switch-off pressure

h,max

=max. suction height

temp

=max. supply temperature

temp

=Ambient temperature

=Splash protection class

=Protection class

=Insulation class

=Pump housing material

G=Grey cast iron

=Pump shaft material

=Pump impeller material

=Suction connection female thread

=Pressure connection female thread

=Pressure vessel volume

p,max

=max. vessel pressure

p,1

=Vessel pilot pressure

A =Dimensions:

Length x Width x Height

m =Weight (with mains cable)

~ Alternating current

The technical specifications quoted are subject to

tolerances (in compliance with the relevant valid

standards).

Emission values

Using these values, you can estimate the

emissions from this power tool and compare these

with the values emitted by other power tools. The

actual values may be higher or lower, depending

on the particular application and the condition of

the tool or power tool. In estimating the values, you

should also include work breaks and periods of low

use. Based on the estimated emission values,

specify protective measures for the user - for

example, any organisational steps that must be put

in place.

Typical A-effective perceived sound levels:

=Sound pressure level

=Acoustic power level

, K

= Uncertainty

WA(G)

=Guaranteed acoustic power level as per

2000/14/EC

Wear ear protectors!

10. Accessories

11. Repairs

12. Environmental Protection

13. Technical specifications

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Metabo HWW 3300-25 G Manual

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