Troubleshooting Guide - Kärcher SB OB Originalbetriebsanleitung

Time & date Activity
After 500 operating Completely check the high-pressure
hours or annually pumps.
Replace the oil in the high-pressure pump. See Maintenance work.
Every 1000 operating WSO: Changing the WSO ultra-fine filter
hours
Safety check
Oil change
WARNING
Danger of burns
The high-pressure pump and the engine oil are hot and
cause burns if touched.
Allow the high-pressure pump to cool down for 15 min-
utes before changing the oil.
1. Place a suitable oil collection container under the oil
drain plug.
Oil drain screw
1
Oil tank
2
Cover
3
2. Remove the oil tank cap.
3. Unscrew the oil drain screw and catch the escaping
oil.
4. Screw in and tighten the oil drain screw.
5. Slowly fill with new oil until the "MAX" marking on the
oil tank.
6. Fit the oil reservoir cap.
7. Dispose of the old oil in an environmentally friendly
manner or hand it over to an authorised collection
point.
Cleaning the sieve
1. Open the union nut.
Frost protection ball tap
1
sieve
2
Union nut
3
Holder
4
2. Pull the frost protection ball tap down,
3. Pull the sieve out of the holder and clean it.
4. Insert the sieve.
5. Fasten the frost protection ball tap to the holder with
the union nut.
Cleaning the coin slot
1. Open the device door.
2. Open the coin acceptor.
Performed
Shut off the fresh water supply, unscrew the filter cup, replace the filter inlay, refit the
new filter inlay and filter cup, open the fresh water supply.
Safety inspection according to the guidelines for liquid jet cleaners / accident preven-
tion guidelines.
Coin acceptor
1
3. Clean the coin track with a damp cloth with washing-
up liquid.
Manual regeneration WSO (BA 65/RO 75)
1. Remove the control button cover.
Cover
1
2. Press and hold the red button.
Camshaft
1
Red button
2
"Salting and washing" position
3
3. Turn the camshaft by hand until the arrow points to
"Salting and washing".
The regeneration process starts and takes about 1
hour.

Troubleshooting guide

DANGER
Risk of fatal injury from electric shock.
Switch off the device at the on-site main power switch
and secure against being switched on again before
working on the device.
WARNING
A high-pressure water jet can escape from dam-
aged parts and cause injuries.
Depressurise the system by turning the power switch to
"0/OFF" and then open all high-pressure guns until the
pressure has been released from the system.
Who is permitted to eliminate faults?
Operator: Work labelled with "Operator" may only be
performed by instructed persons capable of operating
and maintaining high-pressure systems.
Qualified electrician: Work labelled with "Electrician"
may only be performed by qualified electricians.
Customer Service: Work labelled with "Customer ser-
vice" may only be performed by KÄRCHER customer
English
service technicians or KÄRCHER-authorised techni-
cians.
Currently applicable errors, faults and events
If there are critical faults, fault messages or events, the
start screen automatically changes to the message view
after approx. 1 minute.
An active message is indicated at the control by an at-
tention symbol in the top right corner.
Display in the event of existing messages
1
Message displays
Display message category:
1
–
Red: critical fault; system stops immediately
–
yellow: Malfunction; system can continue operat-
ing
–
green: Event; information for the operator
Error description
2
Information on the possible cause of the fault and
3
how to rectify it.
Display of fault number and date and time when the
fault occurred.
Button for acknowledging the fault.
4
Note
If the button is greyed out, the fault still applies and can-
not be acknowledged.
If the button has a yellow background, the malfunction
has been rectified and the fault can be acknowledged.
Progress bar, visualises how long the current mes-
5
sage has already been displayed.
Note
The view switches to the next screen automatically after
approx. 2-3 seconds. The progress bar has then fin-
ished.
Display current message number / total number of
6
messages.
Buttons for manually scrolling back and forth
7
through the different message views.
Note
If there is a critical fault, the system cannot be operated.
This is indicated by a red bar in the corresponding menu
screen.
By whom
Customer Service
Operator
Operator
Customer Service
27