Manual Dolmar HP-20 (page 19 of 140) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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19English

ADJUSTMENT INFORMATION FIG.3

6.1 Adjusting the spray nozzle (for models with this feature)

Water flow is adjusted by regulating the nozzle (E).

6.2 Adjusting the detergent (on models with this feature)

Detergent flow is adjusted using the regulator (F).

6.3 Adjusting the detergent pressure

Set the adjustable nozzle (E) on " " to deliver detergent at the

correct pressure (on models with this feature).

6.4 Adjusting the pressure (on models with this feature)

The regulator (G) is used to adjust the working pressure. The pres-

sure is shown on the pressure gauge (where fitted).

INFORMATION ON USE OF THE APPLIANCE FIG.4

7.1 Controls

- Starter device (H).

Set the starter switch on (ON/1) to set the motor ready to start.

Set the starter device switch on (OFF/0) to shut down the appliance.

- Water jet control lever (I).

Caution - Danger!

During operation the appliance must be positioned

as shown in fig. 4 on a sturdy, stable surface.

7.2 Start-up

1) Turn on the water supply tap fully.

2) Release the safety catch (D).

3) Depress the gun trigger for a few seconds and start up the appli-

ance using the starter device (ON/1).

Caution - Danger!

Before starting up the appliance check that the water

supply hose is connected properly; use of the appliance

without water will damage it; do not cover the ventilation

grilles when the appliance is in use.

TSS models - In TSS models with automatic delivery flow cut-off system:

- when the gun trigger is released the dynamic pressure automati-

cally cuts out the motor (see fig.4);

- when the gun trigger is depressed the automatic drop in pres-

sure starts the motor and the pressure is restored after a very

slight delay;

- if the TSS is to function correctly all gun releasing and depressing

operations must be performed at intervals of less than 4-5 seconds.

To prevent damage to the appliance, do not allow it to

operate dry.

7.3 Stopping the appliance

1) Set the starter device switch on (OFF/0).

2) Depress the gun trigger and discharge the residual pressure

inside the hoses.

3) Engage the gun safety catch (D).

7.4 Restarting

1) Release the safety catch (D).

2) Depress the gun trigger and discharge the residual air inside

the hoses.

3) Set the starter device on (ON/1).

7.5 Storage

1) Switch the appliance off (OFF/0).

2) Remove the plug from the socket.

3) Turn off the water supply tap.

4) Discharge the residual pressure from the gun until all the water

has come out of the nozzle.

5) Drain and wash out the detergent tank at the end of the work-

ing session. To wash out the tank, use clean water instead of

the detergent.

6) Engage the gun safety catch (D).

7.6 Refilling and using detergent

When using detergent, the adjustable nozzle must be set on

" (on models with this feature).

Use of a high pressure hose longer than the one originally supplied

with the cleaner, or the use of an additional hose extension, may

reduce or completely halt the intake of detergent.

Fill the tank with highly degradable detergent.

7.7 Recommended cleaning procedure

Dissolve dirt by applying the detergent mixed with water to the

surface while still dry.

When dealing with vertical surfaces work from the bottom upwards.

Leave the detergent to act for 1-2 minutes but do not allow the

surface to dry. Starting from the bottom, use the high pressure jet

at a minimum distance of 30 cm. Do not allow the rinse water to run

onto unwashed surfaces.

In some cases, scrubbing with brushes is needed to remove dirt.

High pressure is not always the best solution for good washing

results, since it may damage some surfaces. The finest adjustable

nozzle jet setting or the rotating nozzle should not be used on

delicate or painted parts, or on pressurised components (e.g tyres,

inflation valves, etc.).

Effective washing depends on both the pressure and volume of the

water used, to the same degree.

MAINTENANCE FIG.5

Any maintenance operations not covered by this chapter should be

carried out by an Authorized Sales and Service Centre.

Caution - Danger!

Always disconnect the plug from the power socket

before carrying out any work on the appliance.

8.1 Cleaning the nozzle

1) Disconnect the lance from the nozzle.

Remove any dirt deposits from the nozzle hole using the tool (C1).

8.2 Cleaning the filter

Inspect the intake filter (L) and detergent filter (if fitted) before each

use, and clean in accordance with the instructions if necessary.

8.3 Unjamming the motor (on models with this feature)

In case of lengthy stoppages, limescale sediments may cause the

motor to seize. To unjam the motor, turn the drive shaft with a

tool (M).

8.4 End-of-season storage

Treat the appliance with non-corrosive, non-toxic antifreeze before

storing it away for winter.

Put the appliance in a dry place, protected from frost.

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Dolmar HP-20 Manual

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