Troubleshooting - Kärcher SB MU 908 Originalbetriebsanleitung

Maintenance Works
Lubricate the hand-spray gun
1 Screw
2 Halves of the handle shell
3 Node piece
4 Needle bearing
5 O ring
6 Contact surface pipe/ handle shell
7 high pressure hose
 Unscrew spray pipe.
 Loosen 6 screws.
 Remove the half of the handle shell.
 Fill grease in the needle bearing cham-
ber in the handle shell.
 Grease needle bearing and O-Ring.
 Grease contact surface pipe/ handle
shell.
 Screw back the two halves of the han-
dle shell.
Oil change
DANGER
Risk of burns due to hot oil or hot parts of
the plant. Allow pump to cool down for 15
minutes before oil change.
NOTICE
Please dispose off used oil only in the col-
lection points provided for them. Please
hand over old oil, if any, only at such plac-
es. Polluting the environment with used oil
is a punishable offence.
1 Oil container lid
2 Oil drain screw
 Keep a collection basin for old oil ready.
 Remove the lid of the oil container.
 Unscrew the oil drain screw and collect
used oil.
 Insert washer and turn in the oil drain
screw.
 Slowly fill in new oil until the "MAX"
marking on the oil container.
 Close the oil container with the lid.
 Deliver the old oil to the respective col-
lection centres.
Clean the coin mechanism
 Open the coin acceptor, and clean the
coin channel with a moist cloth and
washing liquid.
Clean sieve in front of the orifice plate
1 Orifice plate with sieve (marked in red)
2 Stop valve anti-freeze
 Close the anti-freeze stop valve.
 Open the screw connection. Clean
sieve. Check orifice plate for free pas-
sage.
 Close screw connection.
 Open the anti-freeze stop valve.
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EN

Troubleshooting

The bases of a safe operating of the equip-
ment is thr regularly maintenance accord-
ing to the following maintenance plan.
Use only original parts of the manufacturer
or part suggested by him, such as
– parts and wearing parts,
– accessories parts,
– operating materials,
– cleaning agents.
DANGER
Risk of accident while working on the unit.
During all tasks
 Turn off the water supply; close the
fresh water tap,
 First switch-on in voltage-less state,
switch off the emergency stop switch in
the building and secure it against being
switched on again.
Who may remedy faults?
– 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
washing system.
– Electricians
Persons with a professional training in
the electro-technical area.
– Customer Service
Only KÄRCHER service engineers are
allowed to carry out work with the note
"Customer Service".
Fault indication
Troubleshooting in Switching Cabinet
1 Fault indicator in the display of the con-
trol
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