Manual Stiga HPS 550R (page 13 of 16) (English)

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7.2 Adjusting the detergent

To deliver detergent at the correct pressure, set the nozzle (E)

(where fitted) on " " or fit the detergent kit (C13) (where available)

as shown.

The quantity of detergent delivered is adjusted using the regulator (F).

7.3 Adjusting the working 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/PAGE 5

8.1 Controls

- Starter device (H).

Set the starter switch on (ON/I) to:

a) start the motor (in models without TSS device);

b) set the motor ready to start (in models with TSS device).

If there is a pilot light on the starter device, it should light up.

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

If there is a pilot light on the starter device, it should go out.

- Water jet control lever (I).

Warning - danger!

During operation the appliance must be positioned as

shown in fig. 4 on a firm, stable surface.

8.2 Start-up (see fig. 4)

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/I).

Warning - danger!

Before starting up the appliance check that it is receiv-

ing water correctly; 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;

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

starts the motor and the pressure is restored after a very slight delay;

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

depressing operations must be at least 4-5 seconds apart.

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

operate dry and check that it is properly supplied with water.

For models without TSS, to prevent damage to the appliance

due to an increase in water temperature, do not cut off the jet

of water for more than 5 minutes with the appliance running.

8.3 Stopping

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

2) Depress the gun trigger and discharge the residual pressure

inside the pipes.

3) Engage the safety catch (D).

8.4 Restarting

1) Release the safety catch (D).

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

the pipes.

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

8.5 Storage

1) Turn off the water supply tap.

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

has come out of the appliance.

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

4) Remove the plug from the socket.

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

sion. To wash out the tank, use clean water instead of the detergent.

6) Engage the gun safety catch (D).

8.6 Refilling and using detergent

The detergent must be delivered using the accessories and by

the procedures described in point 7.3.

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

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

reduce or completely halt the suction of detergent.

Fill the tank (B6) with highly biodegradable detergent.

8.7 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 minute 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 cleaning

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 cleaning depends on both the pressure and volume of the

water used, to the same degree.

MAINTENANCE FIG.5/PAGE 6

Any maintenance operations not covered by this chapter should be

carried out by an Authorised Sales and Service Centre.

Warning - danger!

Always disconnect the plug from the power socket

before carrying out any work on the appliance.

9.1 Cleaning the nozzle

1) Disconnect the lance from the nozzle.

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

9.2 Cleaning the filter

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

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

9.3 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).

9.4 Refilling the oil (for models with this feature)

Add oil through the intake hole to restore the correct level.

For oil characteristics, refer to the “Oil characteristics” table.

9.5 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.

STORAGE AND TRANSPORTATION FIG. 5/PAGE 6

Store the accessories as shown in fig. 5.

Transport the machine as shown in fig. 5.

HPS550H_650RG EN.indb 13 17/12/18 上午10:46

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Stiga HPS 550R Manual

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