AEG Electrolux EHG 679 B Betriebsanleitung PDF herunterladen (Seite 17)

Maintenance

3.3 Cleaning the Dirt Trap

A wire-mesh sieve is located in the intake port of the

pump to act as a dirt trap for coarse particles. It should

be kept clean to avoid a reduction of the pumping speed.

For this purpose, remove the dirt trap (2/2) from the inta-

ke port and rinse it in a suitable vessel with solvent. Then

thoroughly dry it with compressed air. If the dirt trap is

defective, replace it with a new one.

The cleaning intervals depend on the appli-

cation. If the pump is exposed to large amo-

unts of abrasive materials, a dust filter

should be fitted into the intake line.

3.4 Removing and Fitting

the Internal Demister

Required tools:

Allen keys 5 mm and 8 mm.

The internal demister is spring-mounted in a frame.

When it is clogged, it rises periodically to reduce the

pressure difference created.

The resultant noise at high intake pressures indicates

that the internal demister is dirty.

Periodically clean or replace the internal demister; the

maintenance interval depends on the application. Use a

suitable solvent for cleaning.

Shutdown the pump and drain the oil (see Section 3.2).

Pull the handle upward.

Remove the five recessed screws (10/5) on the oil case

(10/1). Don’t remove the non-recessed screws; they hold

the motor flange in place.

Pull the oil case forward off the pump.

Remove the gasket (10/7).

Press the spring buckles (10/2) sideways away from the

frame (10/4). Lift off the frame (10/4) and remove the

internal demister (10/3).

Clean all parts and check that they are in perfect condi-

tion; if not, replace them with new parts.

Reassemble in the reverse order.

Torque for the screws (10/5) is 5 Nm.

GA 01.202/9.02 - 03/96

Attention

Fig. 10 Removal and fitting of the internal demister

Key to Fig. 10

1 Oil case

2 Spring buckles

3 Demister

4 Frame for demister

5 Hex. socket screws (5 pcs.)

6 Silencing nozzle

7 Gasket

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 27 28

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