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Руководство по эксплуатации Страница: 10

Karcher BP 4.900 Home Руководство по эксплуатации онлайн [10/132] 885326

English 11

Pressure relief

1. Open and close connected stop valves for pressure

relief.

The system is depressurised.

Note

Rinse the pump with clear water after each use when

pumping water with additives.

Check the pressure of the air filling in the

storage tank

1. Check the pressure of the air filling in the storage

tank every six months, if necessary top up to 2.0 bar

when the device is switched off/depressurised (un-

plug the device, open the water tap)

Note

The type plate is located below the cover. Unscrew the

cover in an anti-clockwise direction.

Illustration B

Transport

몇 CAUTION

Risk of injury

Risk of injury from falling device.

When transporting the device, observe the weight of the

device (see chapter Specifications) and secure it ac-

cordingly when transporting it in vehicles.

Storage

몇 CAUTION

Failure to observe the weight

Risk of injury and damage

Be aware of the weight of the device during storage.

1. Empty the device completely before storage.

2. Store the device in a frost-protected place.

Special accessories

You will find the possible special accessories on the last

page of these operating instructions.

Troubleshooting guide

Malfunctions often have simple causes that you can

remedy yourself using the following overview. When in

doubt, or in the case of malfunctions not mentioned

here, please contact your authorised Customer Service.

Fault Cause Rectification

Pump is running, but not

delivering

There is air in the pump. 1. See chapter Preparation

The air cannot escape on the pressure

side.

1. Open the tapping point on the pressure

side.

No water available. 1. Check the water reservoir.

The pump does not start

up, or stops suddenly

during operation

The power supply is disconnected. 1. Check the fuses and the electrical connec-

tions.

Thermal protection switch in the motor

has switched off the pump due to over-

heating of the motor.

1. Pull out the mains plug.

2. Allow the pump to cool down.

3. Clean the suction area.

4. Prevent dry running.

Note

The cooling time until the motor starts can be

up to 150 minutes.

The pump switches itself

off and also on again

The thermal protection fuse has switched

off the pump to protect it from overheat-

ing or switched it on again after it has

cooled down.

1. To prevent recurrence, the system should

be checked for leaks and sealed.

The motor restarts imme-

diately after switching off

The pressure in the system is lost. 1. Check the connections including seals and

check for water leakage. The slightest

leakage affects operation.

The air pressure in the storage tank is too

low.

1. Fill the storage tank with 2.0 bar (see chap-

ter Care and maintenance).

The return valve does not close properly. 1. Check the check valve on the suction side.

The membrane in the pressure tank is

defective.

1. Have the membrane replaced.

The pump capacity drops

or is too low

The suction filter or the check valve (spe-

cial accessory) are contaminated.

1. Clean the suction filter or the check valve

(special accessory).

The delivery rate of the pump depends

on the delivery head and the connected

periphery.

1. Observe the max. delivery head (see chap-

ter Specifications) Select a different hose

diameter or a different hose length if nec-

essary.

Vibrating noise during

water removal

The membrane in the pressure tank vi-

brates.

1. An operating noise that can be eliminated

by reducing the pressure of the air filling in

the storage tank.

Karcher BP 4.900 Home Руководство по эксплуатации онлайн [10/132] 885326

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