Kärcher BP 3, Manual

Page: 6 / 7

English 11
Roll the cable onto the cable holder and secure with
the cable clip.
a Lift up the device by the carrying handle, and car-
ry it.
 Transport the device in a vehicle.
a Secure the device against slipping and tipping
over.
Storage
ATTENTION
Danger of frost
Incompletely emptied devices can be destroyed by
frost.
Completely empty the device and accessories.
Protect the device from frost.
1. Open the pressure side water dispenser (e.g. water
tap).
The device is depressurised.
2. Drain the hoses.
3. Remove the suction line and pressure line.
4. Open and remove the filling nozzle cap, either man-
ually or using a screwdriver shaft.
5. Clean the pre-filter (see chapter Cleaning the pre-
filter).
6. Turn the pump over and completely empty via the
filling nozzle.
7. Install the pre-filter.
8. Install the cover.
9. Store the pump in a frost-protected place.
Care and service
The device is maintenance-free, i.e. you do not need to
perform periodic maintenance work.
Pressure relief
1. Open and close the pressure valves attached for
pressure relief.
The system is depressurised.
Flushing the pump
1. Flush the pump with clear water if water with addi-
tives has been delivered.
Cleaning the pre-filter
Check the pre-filter for contamination and clean if nec-
essary.
1. Open and remove the filling nozzle cap, either man-
ually or using a screwdriver shaft.
2. Remove the pre-filter with integrated check valve.
Illustration H
3. Disconnect the check valve from the pre-filter.
4. Clean the pre-filter and check valve thoroughly un-
der running water.
5. If necessary, flush any dirt residues out of the pump.
6. Check the freedom of movement of the check valve.
ATTENTION
Use of unsuitable lubricant
Damage to the seals
Use the grease (6.288-143.0) available from Kärcher
Service.
Use only grease free of mineral oil for the seals.
7. Lubricate the seals if the connections do not move
freely.
8. Connect the pre-filter to the check valve.
9. Fit the pre-filter into the filling nozzle without using
unnecessary force. Ensure the correct installation
position (cutouts).
Illustration I
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.
Pump is running, but not delivering
Air is in the pump.
1. Check for correct startup (see chapter Startup and
Starting operation).
Dirt particles block the suction area.
1. Pull the mains plug out of the socket.
2. Clean the suction area.
The pre-filter is soiled.
1. Pull the mains plug out of the socket.
2. Allow the pump to cool down.
3. Clean the suction area.
4. Clean the pre-filter (see chapter Cleaning the pre-
filter).
5. Flush dirt residues at the base of the filling nozzle
out through the filling hole.
6. Switch on the pump.
The suction hose or the connection adapter is not cor-
rectly screwed in.
1. Check that the seals are fitted correctly.
2. Manually tighten the suction hose and connection
adapter.
The pump does not start up, or stops suddenly dur-
ing operation
The power supply is disconnected.
1. Check the fuses and the electrical connections.
The pre-filter is soiled.
1. Clean the pre-filter (see chapter Cleaning the pre-
filter).
2. Flush dirt residues at the base of the filling nozzle
out through the filling hole.
The pump is in Automatic mode and the pressure in the
system is greater than 1.3 bar.
In Automatic mode, the device does not run when an in-
ternal pressure greater than 1.3 bar is present, i.e. a wa-
ter column greater than 13 m works against the pump.
1. Reduce the pressure in the system.
The pump switches on automatically when the pres-
sure in the system drops below 1.3 bar.
The pump stops, the "Suction side error" LED lights
up
The flow is interrupted, pressure is not built up.
1. Pull the mains plug out of the socket.
2. Check that sufficient water is present in the suction
container (e.g. water tank).
3. Check the suction side connections for leaks.
4. Clean the pre-filter (see chapter Cleaning the pre-
filter).
5. Flush dirt residues at the base of the filling nozzle
out through the filling hole.
6. Switch on the pump.
The flow is too small, the dry run fuse has switched off
the pump.
1. Check that sufficient water is present in the suction
container (e.g. water tank).
2. Open the water tap further.
The flow rate increases.
Suction problem due to a leak or a connected water tap.
The pump does not end the suction mode.
1. Open the water tap.
2. Check the system for leaks.