Troubleshooting Guide - Kärcher CWB 3 Originalbetriebsanleitung

Assembly
Maintenance unit
Processed water and fresh water
dirt trap
Roof brush and roof drier
All limit switches
Washing hall
Assembly
Cables and hoses for:
 Energy pillar or
 energy chain or
 trailing cables
Side brushes, roof brush, wheel
brushes
Assembly
Self-service gantry
Wheel washing brushes

Troubleshooting guide

WARNING
Risk of injury from machine movements
Switch the system off before performing maintenance and servic-
ing work.
Secure the main switch with a padlock to prevent it from being
switched on again.
WARNING
Risk of injury from pressurised compressed air reservoirs
and lines after the system has been switched off
Depressurise the system before performing any work on the sys-
tem.
Check the pressure gauge at the maintenance unit to ensure that
the system is depressurised.
40
Monthly maintenance plan after 2000 washes
Activity
Cleaning the filter
Cleaning
Visual inspection of the drive
belts
Check the fasteners and
clearances4
Cleaning
Half-yearly maintenance plan or after 5000 washes
Activity
Visual inspection
Basic cleaning
Annual maintenance plan or after 10000 washes
Activity
Check the toothed rack for
wear and tear
Visual inspection
English
Rectification
Shut off the compressed air supply and then extend
and retract the wheel washing unit in manual mode
until the system is depressurised.
Check the pressure gauge to ensure that the system
is completely depressurised.
Unscrew the filter housing, remove the filter insert,
clean the filter with compressed air, fit the filter, screw
the cover on again.
Shut off the water supply, unscrew the cover of the
dirt trap, remove the filter, flush the filter with water, fit
the filter again, screw on the cover.
Check the condition of the drive belts and replace if
necessary.
Check the clearance between the limit switch and
switching vane using a feeler gauge.
If necessary, adjust the limit switches by adjusting the
plastic nuts.
Limit switch clearances:
 Ø30 mm = 5.0 mm
 Ø30 mm = 2.0 mm
 Side brush movement counter
Ø12 mm = 3.0/ ±0.1 mm
 Roof brush/drier lifting counter
Ø12 mm = 3.5/ ±0.1 mm
Spray the surfaces such as floor, walls and tiles with
an acidic detergent, allow to take effect, clean off the
detergent with a soft pad (white)
Rectification
Condition of the hoses and cables.
Check the hoses and connecting elements for leaks.
Spray the brushes with a detergent (pre-cleaner or
hall cleaner), allow to act and rinse thoroughly with
high-pressure cleaner and warm water at max. 40 °C
Rectification
Replace the brushes after approx. 15000 washes.
Replacing the wheel washing brushes: Remove the
screws inside the brush ring, remove the wheel
washing brush, fit the new wheel washing brush and
fasten in place with the screws.
WARNING
Risk of injury from the high-pressure system after the sys-
tem has been switched off
Depressurise the high-pressure system before performing any
work on the system.
Target groups for troubleshooting
Who is permitted to eliminate faults?
Work labelled with "Operator" may only be performed by instruct-
ed persons who are capable of safely operating and maintaining
the system.
Qualified electricians
Qualified electricians are persons with professional electrotech-
nical training and qualifications.
Target group
Operator
Operator
Customer Ser-
vice
Customer Ser-
vice
Operator
Target group
Operator
Operator
Target group
Operator
Customer Ser-
vice
Operator
Customer Ser-
vice
Operator