Manual Karcher HD 7-16-4 ST (page 24 of 168) (English, German, Dutch, Danish, French, Italian, Portuguese, Swedish, Spanish, Norwegian, Finnish)

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- 7

In order to guarantee a reliable operation of

the equipment, we success, you signed a

maintenance agreement. Please refer to

your local Kärcher service department.

Who may perform maintenance?

Operator

Work designated with the sign “Opera-

tor” may only be carried out by persons

who have been instructed in the safe

operation and maintenance on the high

pressure plant.

Electricians

Only persons with a professional train-

ing in the electro-technical area.

Customer Service

Work designated with the sign “Cus-

tomer Service” may only be done by the

fitters of Kärcher Customer Service.

WARNING

Risk of burns due to hot oil or hot parts of

the plant. Allow the pump to cool down for

minutes before oil change.

Note:

Used oil must only be disposed of by the

designated collection points. Please turn in

used oil there. Polluting the environment

with used oil is prosecutable.

For oil type refer to technical specifica-

tions.

1 Oil tank

2 Oil drain screw

Place the collection trough under the oil

drain screw.

Remove the lid of the oil container.

Unscrew the oil drain screw and collect

oil.

Fix in the oil drain screw and tighten it.

Slowly fill in new oil until the "MAX"

marking on the oil container.

Attach the lid of the oil container.

Dispose of old oil ecologically or turn it

in at a collection point.

Calcium deposits can lead to:

– higher pipe resistances

– even to failure of the components with

heavy calcium deposits

DANGER

–Risk of explosion due to combustible

gases! Smoking strictly prohibited dur-

ing decalcification. Ensure proper ven-

tilation.

–Risk of chemical burns on account of

acid! Wear protective glasses and pro-

tective gloves.

Note:

– Follow the specifications of the accident

prevention regulation BGV A1.

– Follow instructions for use on the lable

of the decalcifying agent.

According to statutory requirements, only

tested and approved boiler decrusting

agents may be used.

– RM 100 (Order No. 6.287-008) dis-

solves chalk and simple compounds of

chalk and detergents residues.

– RM 101 (Order No. 6.287-013) dis-

solves the deposits that cannot be dis-

solved using RM 100.

Note:

As an anti-corrosion measure and for neu-

tralising the acid residue, we recommend

that you finally pump an alkaline solution

through the machine (for e.g. RM 81) via

the detergent tank.

First decalcify the swimmer tank.

Shut off water supply.

Remove the lid of the swimming tank.

Remove the hose from the suction site

of the pump for the swimming tank on

the pump site.

Seal the free end of the hose.

Fill in 7 percent decalcification solution.

Remove resin completely from the tank

after decalcification.

Decalcify the high pressure installation:

Remove the high pressure hose from

the network supply and hang it in the

swimmer tank.

Run the calcium dissolving acid mixture

prepared in the tank through the instal-

lation's cycle, allow it to take effect,

rinse.

Maintenance contract

Maintenance Works

Oil change

Descaling

24 EN

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Karcher HD 7-16-4 ST Manual

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