![background image](http://html1.mh-extra.com/html/karcher/kmr-1250-b/kmr-1250-b_service-manual_3518271033.webp)
33
KMR 1250 B, LPG, D
Troubleshooting Information
Check tire pressure
Uneven tire pressure in the rear wheels causes
the power sweeper to tilt sideways and run lop-
sided. The result may be a substandard sweep-
ing pattern and the cleaning result is not satisfy-
ing.
Check control cables
The combination of excessive strains at deflec-
tion pulleys and repeated road soiling exert con-
siderable stresses on mechanical control cables.
If required, check cable routing, clean cables,
and lubricate with new grease (P/N 6.288-107).
Replace brush roller
–
Stop and park the machine, engage parking
break.
–
Using the operating lever, lower brush roller
to center position.
–
Swing RH side hatch (3) upward.
–
Remove safety bolt (2) at lower end of fork
head (A, B), and pivot rod toward the rear.
–
Turn knurled screw (3) counterclockwise.
–
Remove brush roller arm (4).
–
Open turn-lock latch (5), and swing hinged
brush roller hatch toward front of unit.
–
Extract brush roller (6).
–
Turn brush roller adjustment screw clock-
wise until seated.
–
Install new brush roller, then replace brush
roller arm.
Note:
Ground clearance of raised brush roller must
be at least 10 mm (0.40 in).
Brush roller, installed position. Arrow points FWD.
Extracting brush roller
Removing brush roller arm
Brush Roller – Poor Performance
A
B
5
2
3
1
4
3
4
6
5
1
1
Side hatch
2
Safety bolt
3
Knurled screw
4
Brush roller arm
5
Turn-lock latch for hinged brush roller
hatch
6
Brush roller