Brush Roller - Poor Performance - Kärcher KMR 1250 B Service Manual

KMR 1250 B, LPG, D
Brush Roller – Poor Performance
2
A
B
5
Removing brush roller arm
6
Extracting brush roller
Brush roller, installed position. Arrow points FWD.
1
3
4
1
5
3
4
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).
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
33