User instructions, Troubleshooting – Karcher KMR 1250 B User Manual
Page 25
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User Instructions
KMR 1250 B
50
Troubleshooting
Fault
Possible cause
Remedy
Engine does not start
Battery discharged
Re-charge or replace batteries
No fuel in tank
Fill up with fuel
Fuel tap closed
Open fuel tap
Low oil level
Fill up with oil
Machine does not move
Hand lever (by-pass valve) on
torque converter is at OFF
Set hand lever to ON - see
chapter on pushing the
sweeper by hand
Main brush roller and side
brush
V-belt torn
Inform Customer Service
V-belt to loose
Check V-belt tension and
adjust
Main brush roller or side brush
blocked with tape or similar
Remove tape
Dust generation when
sweeping
Seals on the machine worn, filter
not installed correctly or
defective
Replace seals, mount filter
correctly/replace
Lever for sweeping mode
wet/dry set to wet
Set lever to “dry”
Blower fan is not rotating
Check V-belt
Filter is blocked
Clean or replace filter
Machine sweeps badly
Brushes worn out
Replace
Waste hopper is full
Empty waste hopper
Sweeping pattern wrongly
adjusted
Adjust sweeping pattern
High-emptying does not
function
Fuse defective
Change fuse or inform
Customer Service
Switch defective
Inform Customer Service
Hydraulic unit is defective
Inform Customer Service
Machine moves forwards
or backwards when drive
pedal is released
Neutral position not correct
Inform Customer Service