For your safety ..........................................................................................................................................29
On behalf of the environment....................................................................................................................30
Prior to initial start-up ................................................................................................................................32
Preparing the sweeper for use..................................................................................................................34
Adjusting the driver’s seat ....................................................................................................................................34
Filling the fuel tank...............................................................................................................................................34
Opening the fuel tap .............................................................................................................................................34
Starting the sweeper .................................................................................................................................35
Moving off and sweeping.......................................................................................................................................35
Stopping the sweeper and s witching off ................................................................................................................36
Cleaning the filter .................................................................................................................................................36
Emptying the waste hopper..................................................................................................................................37
Sweeping on dry ground.......................................................................................................................................38
Sweeping on damp or wet ground.........................................................................................................................38
Shutting the sweeper down for longer periods..........................................................................................39
Transporting the sweeper .........................................................................................................................40
Cleaning and care.....................................................................................................................................40
Opening/closing the unit cover .............................................................................................................................42
Disconnecting the battery ....................................................................................................................................42
Checking tyre pressures ......................................................................................................................................43
Checking the oil level ...........................................................................................................................................43
Filling up with oil ..................................................................................................................................................43
Changing the engine oil ........................................................................................................................................43
Cleaning or replacing the air cleaner.....................................................................................................................44
Cleaning the fuel filter holder ................................................................................................................................44
Checking the hydraulic system ............................................................................................................................44
Checking the level of electrolyte in the battery......................................................................................................45
Charging the battery.............................................................................................................................................45
Replacing the sealing skirts .................................................................................................................................46
Replacing the side brush......................................................................................................................................46
Replace light unit .................................................................................................................................................46
Adjusting the sweeping pattern ............................................................................................................................47
Replacing the main brush roller ............................................................................................................................48
Replacing the dust filters......................................................................................................................................49
Before you use this machine for the first time, please read
the following:
– these operating instructions
– the enclosed leaflet Safety Information No. 5.956-250.
Make sure that all information contained therein is complied
with.
!
Explosion hazard while refuelling!
n Do not fill up with fuel
– in an enclosed space
– while the engine is running.
n Do not smoke while refuelling the vehicle.
n Fuel expands as it becomes warmer.
Do not fill the tank right up to the top. Leave a gap of at
least 1 cm under the bottom edge of the filler neck.
n Wipe up any fuel they may have been spilt and ensure
that the cap is replaced firmly on the tank.
!
Fire hazard while sweeper is operating!
n Keep highly inflammable materials away from the engine
and the exhaust while the sweeper is operating.
!
Danger of toppling over on steep slopes!
The sweeper could topple over while it is being driven
across or turning round on a sleep slope.
n The maximum gradient up or down which the sweeper
can be driven is 18%.
n Do not drive at right angles to a slope with a gradient
steeper than 10%.
!
Danger of toppling over if bends are negotiated at
high speed!
n The sweeper could topple over if it is driven round a bend
at high speed. Drive slowly round bends.
!
Caution when carrying out maintenance or repairs!
In order to prevent the engine from being started unintentionally, proceed as follows:
n Remove the ignition key.
n Disconnect the battery at the negative terminal.
!
Caution while handling the battery!
Observe the safety information provided by the battery
manufacturer.
Always use batteries and chargers recommended by
KÄRCHER, otherwise your warranty could be rendered
invalid.
29
EnglishUser InstructionsKMR 1250 B
!
Caution while transporting the sweeper!
Make sure that the sweeper is secured properly if you are
going to transport it to a different location.
Do not use a forklift truck for loading purposes as it could
damage the sweeper.
n Apply the parking brake.
n Secure the sweeper as shown in the illustration, using
– web belts
or
– ropes
or
– chains.
On behalf of the
environment
!
Caution, environmental hazard due to exhausted
batteries!
Exhausted batteries should not be treated as domestic
refuse. Make sure that are disposed of in an environmentally
appropriate manner.
!
Caution, environmental hazard due to engine oil or
hydraulic fluid!
After you have changed the engine oil or hydraulic fluid, take
the waste product to a recognised collection point or to a
waste disposal company.
30
KMR 1250 BUser InstructionsEnglish
Intended usage
Sweeper functions
This sweeper
– is intended to be used for sweeping outdoor surfaces,
– corresponds to application category BIA KAT ”U” for
dusts which present no health hazard
– should not be used in enclosed spaces,
– can only be used on public paths and highways if it has
been fitted with the StVZO Accessory Kit.
Main components
Drive unit
– single-cylinder petrol engine (6.6 kW according to SAE J
6070a)
– continuously-adjustable hydraulic drive to rear wheels
– main brush and side brush driven via belts
– hydraulically controlled emptying of waste hopper
– high-performance generator
Sweeping mechanism
– main brush employing throw-over principle for particularly
effective filling of waste hopper
– floating main brush roller with adjustable height above
ground
– quick-change mechanism for main brush
– side brush can be raised and swivels automatically
– bulk waste flap for picking up larger items (e.g. cigarette
packs or drink cans)
Filter system
– integrated dust extraction for main roller by means of
radial turbine
– 2 circular filters with 2 x 3 m
2
effective surface area
– electric filter cleaner with automatic shaking mechanism
31
EnglishUser InstructionsKMR 1250 B
Prior to initial start-up
Unloading procedure
Do not use a forklift truck for unloading as it could
!
cause damage to the sweeper.
The sweeper has been lashed onto a pallet to ensure that
it can be transported safely. The procedure for unpacking
the sweeper is as follows:
1. Remove the wooden boards from the pallet and nail
them onto the end of the pallet (in front of the sweeper).
2. Detach the wires holding the sweeper in place at the
ends of the pallet.
3. Knock away the blocks used for locking the wheels and
use them for the support of the wooden planks on the left
and right.
4. Drive the sweeper off the pallet and down the ramp
made from the boards.
5. The side brush has been tied to the chassis for trans-
port. Undo the cord holding it in place.
Pushing the sweeper by hand
If you wish to move the sweeper without using its own drive:
n Open the engine cover.
n Fold the cover towards the rear; it will be held in place by
the pneumatic spring.
ç Turn the lever for allowing freewheeling to position ”OFF”.
n Release the handbrake.
n Push the sweeper to the required destination.
Note:
Do not move the sweeper over long distances without using
its own drive or at higher speeds than 10 km/h (e.g. whilst
being towed).
After moving the machine
n Put the parking brake on.
n Set free-wheeling lever to position ”ON”.
32
KMR 1250 BUser InstructionsEnglish
Operating controls
1.Ignition lock
2.Choke
3.Throttle lever
4.Raise / lower RH side brush
5.Raise / lower main brush
6.Raise / lower LH side brush (optional)
7.Switch for two-handed operation
8.Operating hour counter
9.Lights
10.Bulk waste flap
* Function only operative in conjunction with 7 (two-handed operation).
All directions given (left/right, front/rear) are as seen from
the driver’s seat.
n Check the oil level in the engine (see Chapter: “Mainte-
nance”).
n Check the amount of fuel in the tank and fill up, if required
(see below).
n Check the level of hydraulic fluid and top up, if required
(see Chapter: “Maintenance”).
n Check the air pressure in the tyres (see Chapter:
“Maintenance”).
n Inspect the brush roller and remove any string, rope, etc.,
that may be caught up in the brushes.
n Check the dust filter. If it is very dirty, operate the shaker
to clean it off.
n Empty the waste container.
Adjusting the driver’s seat
The driver’s seat can be adjusted to suit persons of various
heights.
n Unhook the rods in the seat tilting device.
ç Undo the 4 screws.
n Move the seat to the desired position.
n Tighten the screws and hook the rods back into the tilting
device.
Filling the fuel tank
!
Explosion hazard while refuelling!
n Do not fill up with fuel
– in an enclosed space
– while the engine is running.
n Do not smoke while refuelling the vehicle.
n Fuel expands as it becomes warmer.
Do not fill the tank right up to the top. Leave a gap of at
least 1 cm under the bottom edge of the filler neck.
n Wipe up any fuel they may have been spilt and ensure
that the cap is replaced firmly on the tank.
n Use petrol, regular (lead-free).
Opening the fuel tap
n Open the unit cover.
ç Open the fuel tap.
OPEN = lever pushed to side opposite to direction of
travel
n Close the unit cover.
34
KMR 1250 BUser InstructionsEnglish
Starting the sweeper
Initial driving trials
Carry out initial driving trials in an area where there is plenty
of free space until you are familiar with individual operating
controls and their functions.
All indications of direction (right/left, front/rear) are given in
relation to the direction of travel as seen from the driver’s
seat.
n Sit down on the driver’s seat.
The engine cannot be started until the driver has sat
down (seat contact switch). As soon as driver gets up
from the seat, the engine switches off (safety cut-out).
n Make sure that
– the LH side brush (if fitted) is in the raised position,
– the RH side brush is in the raised position,
– the main brush is in the raised position.
n Set the throttle lever to the middle position
[
] (operating speed).
n Pull out the choke [
] .
n Turn the ignition key to the start position [
n When the engine has started running, set the control for
the choke back to its home position.
Moving off and sweeping
n Lower the main brush [
brush as well [].
n Release the parking brake [
– push the lever towards the front.
n Slowly depress drive pedal
– depress right pedal, machine travels forwards
– depress left pedal, machine travels backwards.
Whichever drive pedal is being used at the time, the driving
speed can be uniformly and smoothly regulated backwards
or forwards. Avoid jerky operation of the pedals, as the
hydraulic system could suffer damage in this way.
] and, if required, the side
]
].
35
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