Kärcher B 250 R Instructions Manual page 25

Additionally for B 250 RI:
 Check for smooth running of the
Bowden cables and the moveable parts
 Check the sealing strips of the sweeper
for settings and wear.
Quarterly
For B 250 RI only:
 Check tension, wear and function of
drive belts of the sweeper (V-belt and
circular belt).
Yearly
 Have the prescribed inspection carried
out by the customer service.
Reset the counter
When a maintenance task indicated in the
display has been performed, the relevant
maintenance counter must be reset after-
wards.
 Plug in the Intelligent Key.
 Bring the safety switch into the "1" posi-
tion.
 Set programme selector switch to trans-
port run.
 Press Info button.
 Turn the info button until "Maintenance
counter" is displayed.
 Press Info button.
The counter readings are displayed.
 Press Info button.
"Delete counter" is indicated.
 Turn the info button until the counter to
be deleted is highlighted.
 Press Info button.
 Select "YES" by turning the info button.
 Press Info button.
The counter is deleted.
Note:
The service counter can only be reset by
the customer service.
The service counter indicates the time until the
next service by the customer service is due.
Maintenance Works
Maintenance contract
To ensure a reliable operation of the appli-
ance maintenance contracts can be con-
cluded with the competent Kärcher sales
office.
Replacing the vacuum lips
 Remove the vacuum bar.
 Loosen cross-handles.
 Remove the plastic parts.
 Remove the vacuum lips.
 Insert new vacuum lips.
 Insert the plastic parts.
 Tighten the cross-handles.
Replacing the brush rollers
 Swivel up the wiper lip.
 Press button.
 Counter holder for brush roller is re-
leased and can be removed.
 Remove brush roller, install new one.
1 Rotary knob
2 Wiping flap
Repeat the procedure in reverse order.
 Install the counter holder for the brush
roller.
 Swivel the scraper flap downward.
 The height of the scraper flap is adjust-
ed via a rotary knob.
 Repeat process on the opposite side.
Replacing the disk brushes
 Press the pedal for changing the brush-
es downward beyond its resistance.
 Pull the disc brush out of the side below
the cleaning head.
 Hold the new disc brush under the
cleaning head, push upward and lock.
 The height of the scraper flap is adjust-
ed via a rotary knob.
9
-
EN
Replacing the wiper lips
1 Screw
1.
2 Support
3 Wiping flap
 Unscrew the screws.
 Remove the holders.
2.
 Replace scraper wipe.
 Attach and screw down holder.
Additional maintenance tasks for
DANGER
Risk of injury on account of belt drives. The
sweeper hood must compulsority be closed
and locked before recommissioning the
1
machine after maintenance tasks.
Checking drive belt
2
1 Belt suction turbine Sweeper
2 Belt of roller brush drive
 Check both the belts for wear and prop-
er fitting.
Check sealing strips of sweeper
 Park the machine on an even surface.
 Set main switch to "0".
 Secure the machine with wheel
chock(s) to prevent it from rolling away.
 Remove waste containers on both
sides.
 Front sealing strip
 Loosen fastening nuts.
1
2
3
the B 250 RI
25