KMR 1250 D
1.091-114
1.091-134
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KMR 1250 D
User Instructions
English
Contents
For your safety ..........................................................................................................................................28
On behalf of the environment ....................................................................................................................29
Intended usage..........................................................................................................................................30
Sweeper functions ....................................................................................................................................30
Main components......................................................................................................................................30
Prior to initial start-up ................................................................................................................................31
Unloading procedure ............................................................................................................................................31
Pushing the sweeper by hand ..............................................................................................................................31
After moving the machine .....................................................................................................................................31
Operating controls ....................................................................................................................................32
Preparing the sweeper for use..................................................................................................................33
Adjusting the driver’s seat ....................................................................................................................................33
Filling the fuel tank ...............................................................................................................................................33
Open fuel tap .......................................................................................................................................................33
Starting the sweeper .................................................................................................................................34
Initial driving trials .................................................................................................................................................34
Braking ................................................................................................................................................................35
Stopping the sweeper and switching off ................................................................................................................35
Cleaning the filter .................................................................................................................................................35
Automatic cleaning ..............................................................................................................................................35
Manual cleaning ...................................................................................................................................................35
Emptying the waste hopper ..................................................................................................................................36
Typical applications ...................................................................................................................................37
Sweeping on dry ground .......................................................................................................................................37
Sweeping on damp or wet ground.........................................................................................................................37
Shutting the sweeper down for longer periods..........................................................................................38
Transporting the sweeper .........................................................................................................................39
Cleaning and care .....................................................................................................................................39
Maintenance ..............................................................................................................................................40
First engine oil change .........................................................................................................................................40
Initial inspection after 8 operating hours................................................................................................................40
Daily maintenance ...............................................................................................................................................40
Maintenance intervals...........................................................................................................................................40
Maintenance tasks...............................................................................................................................................41
Opening/closing the unit cover .............................................................................................................................41
Disconnecting the battery ....................................................................................................................................41
Checking tyre pressures ......................................................................................................................................42
Checking the oil level ...........................................................................................................................................42
Filling up with oil ..................................................................................................................................................42
Changing the engine oil ........................................................................................................................................42
Cleaning or replacing the air cleaner.....................................................................................................................43
Clean fuel filter .....................................................................................................................................................43
Checking the hydraulic system ............................................................................................................................43
Checking the level of electrolyte in the battery......................................................................................................44
Charging the battery .............................................................................................................................................44
Replacing the sealing skirts .................................................................................................................................45
Replacing the side brush ......................................................................................................................................45
Replace light unit .................................................................................................................................................45
Adjusting the sweeping pattern ............................................................................................................................46
Replacing the main brush roller ............................................................................................................................47
Replacing fuses ...................................................................................................................................................48
Replacing the dust filters ......................................................................................................................................48
Troubleshooting.........................................................................................................................................49
Technical specifications ............................................................................................................................50
27
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User Instructions
KMR 1250 D
Before you use this machine for the first time, please read
the following:
For your safety
– 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 unintentio-
nally, 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 KÄR-
CHER, otherwise your warranty could be rendered invalid.
28
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KMR 1250 D
User Instructions
English
!
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.
29
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User Instructions
KMR 1250 D
This sweeper
Intended usage
– is intended to be used for sweeping outdoor surfaces,
– corresponds to Usage Category “U” for dust that is not
injurious to health,
– 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
Sweeper functions
Drive unit
– single-cylinder diesel engine
– 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 m2 effective surface area
– electric filter cleaner with automatic shaking mechanism
30
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KMR 1250 D
User Instructions
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Unloading procedure
Prior to initial start-up
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 push the sweeper over long distances or move it at a
speed greater than 10 km/h (e.g. when it is being towed).
After moving the machine
n Put the parking brake on.
n Set free-wheeling lever to position ”ON”.
31
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User Instructions
KMR 1250 D
Operating controls
1.
3.
4.
5.
6.
7.
8.
9.
Ignition lock
Throttle lever
12. Tip waste hopper *
13. Raise waste hopper *
14. Lower waste hopper *
15. Filter cleaning
16. Sweeping mode, wet / dry
17a. Driving pedal backwards
17b. Driving pedal forwards
18. Horn
Raise / lower RH side brush
Raise / lower main brush
Raise / lower LH side brush (optional)
Switch for two-handed operation
Operating hour counter
Lights
10. Bulk waste flap
19. Steering wheel
11. Parking brake / Driving brake
20. Open/close unit cover
* Function only operative in conjunction with 7 (two-handed operation).
32
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KMR 1250 D
User Instructions
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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”).
Preparing the sweeper for
use
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 1 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 only diesel.
Open fuel tap
n Open unit cover
ç Open fuel tap at position 0 (OPEN)
Lever points downwards
n Close unit cover
33
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User Instructions
KMR 1250 D
Initial driving trials
Starting the sweeper
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.
(opera-
ting speed)
n Put the ignition key into the starting position and start the
engine.
.
n After the engine has started, push the choke back in.
Moving off and sweeping
n Lower the main brush
brush as well
n Release the parking brake
and, if required, the side
.
– push the lever towards the front.
n Press driving pedal slowly
Press right pedal, machine moves forwards
Press left pedal, machine moves backwards
The travel speed can be infinitely adjusted forwards or
backwards with the respective pedal.
Avoid jerky motions of the pedal, as this can damage the
hydraulic system.
34
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KMR 1250 D
User Instructions
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Braking
n Release the drive pedal and the sweeper will brake auto-
matically.
Important note: Safety!
It is possible that the automatic braking function will not be
sufficient to bring the sweeper to a halt. In this case, either
make use of the parking brake as well or gently press the
drive pedal in the opposite direction to travel.
Stopping the sweeper and switching off
n Release the drive pedal. The sweeper brakes automati-
cally and comes to a halt.
n Apply the parking brake
.
n Set the throttle lever to minimum engine speed (to the
rear).
n Make sure the main roller
and side brush
are
raised so that the bristles are not damaged.
n Switching off
– Turn the ignition key counter-clockwise to the 0 positi-
on and then remove it.
After the engine has been switched off, the filter is
automatically cleaned for approx. 10 seconds.
Automatic cleaning
Cleaning the filter
n Stop the sweeper and switch off the engine.
After the engine has been switched off, the filter is auto-
matically cleaned for approx. 10 seconds.
Manual cleaning
While the sweeper is operating, the filter should be cleaned
approx. every 15–30 minutes (depending on amount of
dust).
n Stop the sweeper.
n Set the sweeping mode lever to wet
.
n Give a short press on the filter cleaner button
, the
filter is cleaned for about 10 seconds. .
n Set the sweeping mode lever back to dry
n Continue with cleaning task as before.
.
35
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User Instructions
KMR 1250 D
Emptying the waste hopper
!
Important information
Injury hazard!
No person or animal should be allowed to stand in the area traversed by the hopper while it is
being emptied.
Danger of being crushed!
Do not reach into the shafts and linkage of the emptying mechanism.
Do not stand under the hopper.
Risk of sweeper toppling over!
If the sweeper is standing on a slope with a gradient of more than 5%, it could topple over while
the hopper is being emptied. The hopper should therefore only be emptied when the gradient at
the location where the sweeper is standing is less than 5% for the direction in which it is facing.
n Stop the sweeper.
n Raise the main brush
.
Note: Following steps can only be performed with the
sweeper set to two-handed operation.
n Raise the waste hopper 1 + 2
+
When the hopper has reached the required height:
n Tip the hopper outwards 1 + 3
+
Note:
The hopper must have reached a certain minimum height
before it can be tipped out. The best position for emptying
the hopper is when it has been fully extended.
As soon as you release the button for activating the tipping
system, the hopper automatically returns to its original
position.
n Lower the hopper 1 + 4
+
36
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KMR 1250 D
User Instructions
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Typical applications
!
Caution while sweeping!
Do not sweep up packing bands, wires or similar items,
otherwise the sweeping mechanism will be damaged.
Do not sweep any burning/glowing objects.
Sweeping on dry ground
If there is a large amount of rubbish, such as several layers
of leaves
n remove the bulk by hand before you start with the
sweeper.
For a small amount of normal dirt
n on an even surface:
lower main brush
– set the lever to the middle position
brush wear).
(minimum
n on an uneven surface:
lower main brush
– set the lever to the lower position
brush wear).
(increased
n switch on dust extraction
– set the switching mode lever to dry
.
n for cleaning right up to the edges – lower the side brush
.
At regular intervals:
n clean the filter,
n empty the waste hopper.
Notes: If you are sweeping up fine dust, use the side brush
as little as possible as it will increase the amount of dust
stirred up by the sweeper. If the side brush encounters an
obstacle, it automatically swivels back inside the outer
contours of the sweeper. You should nevertheless try to
avoid collisions.
While the sweeper is operating, the filter should be cleaned
approx. every 15–30 minutes (depending on amount of
dust).
Sweeping on damp or wet ground
Follow the same procedure as for sweeping on dry ground.
In order to protect the filter from moisture
n switch off the dust extraction
– set the sweeping mode lever to wet
.
At regular intervals:
n empty the waste hopper.
37
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User Instructions
KMR 1250 D
Picking up larger items (sticks, tins, etc.)
Caution!
!
When the bulk waste flap is open, stones or grit could be
thrown at the front by the main brush. Make sure therefore
that when you open the flap no persons, animals or property
are endangered.
n Open the bulk waste flap
by pulling back the corre-
sponding lever.
n Drive over the items to be picked up, at low speed and
with the bulk waste flap open.
Note:
In order to avoid stirring up dust unnecessarily, close the
bulk waste flap again as soon as possible.
Overcoming obstacles
Obstacles up to 5 cm in height
– can be driven over without any problems. Before you do
so, open the bulk waste flap and raise the main brush.
Obstacles more than 5 cm in height
– can be only be driven over with the aid of a suitable ramp.
If you do not intend to use the sweeper for a longer period of
time (e.g. during the winter), please observe the following.
n It is most important that the main brush and side
brush(es) are kept raised in order to avoid damage to the
bristles.
Shutting the sweeper down
for longer periods
n Clean the interior and exterior of the sweeper.
n Close the fuel tap.
n Change the engine oil (see Chapter: “Maintenance”).
n Store the sweeper in a protected environment and ensure
that it cannot roll away.
n Remove the ignition key.
n Disconnect the battery.
n Charge the battery with a suitable charger approx. every
two months (see Chapter: “Maintenance”).
38
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If the sweeper is going to be transported on the back of a
vehicle, it must be properly secured so that it cannot move
unintentionally.
Transporting the sweeper
n Apply the parking brake.
n Secure the sweeper in the manner shown in the illustrati-
on only, using
– web belts
or
– ropes
or
– chains.
Before you carry out any cleaning or general maintenance
tasks,
Cleaning and care
n Park the sweeper and switch off the engine.
Cleaning the inside of the sweeper:
You can clean out the inner parts of the sweeper by blowing
them through with compressed air.
Cleaning the outside of the sweeper:
The outside of the sweeper can be wiped off with a damp
cloth. Do not use any aggressive cleaning agents which
might cause damage to the plastic components.
39
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KMR 1250 D
First engine oil change
Maintenance
!
Caution!
When an engine is new, it is subject to increased abrasion.
In order that the engine does not suffer any damage, we
recommend that you change the engine oil and the oil filter
after the first 8 operating hours.
Initial inspection after 8 operating hours
!
Caution!
In order to ensure that your sweeper functions safely and
reliably, it should undergo an initial inspection after approx. 8
operating hours. The inspection should be carried out by an
authorised service agent.
n Check all Bowden cables and make adjustments where
necessary.
n Change the engine oil.
n Check that there are no leaks in the hydraulic system and
all components function correctly.
n Check that the parking brake functions correctly.
n Check the air pressure in the tyres (correct level: 6 bar).
Daily maintenance
n Check the engine oil level.
n Check the tyre pressure (correct level: 6 bar).
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.
Maintenance intervals
Keep to the service intervals set out in the maintenance
booklet so that your sweeper functions reliably and you
retain the full benefit of the warranty.
The maintenance booklet (Order-no. 5.950-536) can be
found in the tool compartment on the sweeper (under the
bonnet).
The necessary maintenance tasks should be carried out by
an authorised service agent.
40
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KMR 1250 D
User Instructions
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!
Safety information applicable to maintenance
tasks
Before you begin any maintenance tasks, please read the
enclosed leaflet Safety Information No. 5.956-250.
Caution! Make sure engine cannot be started uninten-
tionally.
In order to prevent the engine from being started unintentio-
nally, proceed as follows after you have parked the
sweeper.
n Pull out the ignition key.
n Disconnect the battery at the negative terminal.
The necessary maintenance tasks or daily inspections can
be carried out with the bonnet raised.
Risk of injury!
Only raise the unit cover after the engine has been switched
off and the parking brake
has been applied.
Burns hazard!
Take care not to touch the exhaust when you open the
bonnet.
Injury hazard!
ç If you need to work under the waste container while it is
in the raised position, you must first of all secure the
container to prevent it from dropping down unintentional-
ly:
Opening/closing the unit cover
Maintenance tasks
n Tip the seat forwards.
n Take hold of the unit cover by the recessed grip and open
it by pulling upwards.
Disconnecting the battery
n Open the unit cover.
n First of all disconnect the cable from the negative termi-
nal (–), then disconnect the positive terminal (+).
Note:
When reconnecting the battery, proceed in reverse order –
connect the positive terminal (+) first of all, then the negati-
ve terminal (–).
41
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n Park the sweeper on a level surface.
n Check the air pressure in each tyre and correct it where
necessary.
Checking tyre pressures
Air pressure for front and rear tyres = 6 bar.
Checking the oil level
n Park the sweeper on a level surface.
Pull out the dipstick.
n Wipe the dipstick clean and re-insert it in the filler hole.
n Pull out the dipstick again and check the result.
The oil level should be between the MIN and MAX marks.
If the oil level is below MIN – top up with oil.
If the oil level is above MAX – drain off the surplus.
n Insert the dipstick back into the filler hole.
MAX
MIN
n Pour engine oil type SAE 15 W 40 into the hole for the
Filling up with oil
dipstick.
Changing the engine oil
Caution! Danger to the environment from engine
!
oil
After carrying out an oil change, ensure that the waste oil is
passed to an appropriate collection point or official disposal
company.
Caution,
!
n Run the engine until it reaches its normal operating tem-
perature.
n Make sure the sweeper is standing on a level surface.
n Open the unit cover.
n Place a drip pan under the engine.
ç Hold the end of the drain tube over the drip pan and let
the old oil run out.
n Close off the end of the drain tube again.
n Pour engine oil into the filler hole.
Capacity = 1.1 litres
n Check the oil level with the dipstick – see “Checking the
oil level”.
n Wipe up any oil spillage and dispose of the waste oil
appropriately.
42
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Cleaning or replacing the
air cleaner
!
Do not run the engine without an air cleaner other-
wise this will lead to increased wear on the engine
The air cleaner must be washed out more frequently if the
engine is run in particularly dusty environment.
!
Do not wash the air cleaner in petrol or a cleaning
solvent with a low flash point.
n Filter insert 1: Replace when heavily contaminated.
Otherwise, blow out the insert from the inside with com-
pressed air or knock it on a hard surface. Do not brush
the dirt off or the dirt will get pressed into the fibres.
Do not clean the filter with a soap solution as in this
model it is a oil wet filter.
Clean fuel filter
Do not smoke where this work is taking place,
!
keep away from naked flames and sparks.
n Drain the fuel out of the tank.
n Undo the small screws on the fuel tap and draw out the
filter. Wash the filter thoroughly with diesel fuel.
n Carry out a visual inspection. If there is any loss of fluid
from the hydraulic unit, cylinder or hoses, call KÄRCHER
Customer Service.
Checking the hydraulic
system
43
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KMR 1250 D
Safety information
which must be observed when handling batteries.
Comply with the user instructions and ensure that these are displayed at the
charging station. Before the operator carries out any work on batteries, he/she
must have received proper instruction from a suitably qualified person.
Wear safety goggles and protective clothing when working on batteries. Ob-
serve accident prevention regulations, as well as DIN VDE 0510, VDE 0105
Part 1.
Smoking is forbidden!
Make sure that there are no naked flames, other source of heat or sparks in
the proximity of the battery, otherwise there is a danger of explosion or fire.
If electrolyte comes into contact with skin or eyes, rinse the affected area with
plenty of clean water. The metal parts of battery cells are permanently live.
Therefore do not place any tools or other objects on top of the battery.
Explosion and fire hazard! Avoid short-circuits.
Warning! The metal parts of battery cells are permanently live. Therefore do
not place any tools or other objects on top of the battery.
Electrolyte is highly corrosive. Under normal operating conditions it is not
possible for anything to come into contact with the electrolyte. If the battery
housing is destroyed, the bound electrolyte that leaks out is just as corrosive
as liquid electrolyte.
Return to manufacturer!
Exhausted batteries bearing this symbol are a re-usable resource which
should be recycled accordingly. Exhausted batteries that are not intended to
be recycled must be disposed of as hazardous waste in compliance with all
relevant regulations.
Note: This only affects batteries which are not absolutely
maintenance free.
Checking the level of
electrolyte in the battery
Check the level of electrolyte in batteries filled with acid.
Make sure the battery is fully charged before you carry out
the check. If required:
n Top up each cell with distilled water until the lead plates
are covered by approx. 1 cm of liquid.
Note:
Charging the battery
We recommend using the automatic battery charger (part
number 6.654-116) for starter batteries. Only use a battery
charger having a mark of conformity!
Only use a battery charger with a certification mark!
Only undertake the charging procedure in dry, weather-
protected areas.
n Bring machine to a stop, remove ignition key
n Tilt the seat forward and open the unit cover
n Connect the positive (battery) post (+) with the battery
charger (red clip)
n Connect the negative (battery) post (-) with the battery
charger (black clip)
n Connect the battery charger to the network and switch on
as necessary. Charging period according to
manufacturer’s specifications.
44
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The sealing skirts fulfil an important function. They retain the
partial vacuum in the area round the brushes which is es-
sential so that the sweeper can function properly. They
ensure that sweeping can take place without clouds of dust
being formed at the same time. If the sealing skirts are
damaged or worn out, they must be replaced immediately.
Replacing the sealing skirts
n Park the sweeper and switch off the engine.
n Remove the retaining screws and detach the sealing
skirts.
n Fit new skirts, and align them as follows:
The side skirts should be adjusted so that they clear the
ground by 1–3 mm.
Direction of travel
The rear skirt should be adjusted so that they clear the
ground by 1–5 mm.
n The front skirt cannot be adjusted. Replace the skirt as
soon as you see signs of excessive wear.
n Tighten the retaining screws.
Replacing the side brush
n Park the sweeper and switch off the engine.
n Raise the side brush.
n Remove the three hex-socket bolts (5 mm Allen key).
n Detach the side brush.
n Push the new side brush onto the drive pin.
n Refit and tighten the three hex-socket bolts.
Replace light unit
n Stop the machine and turn it off
n Take out the ignition key
n Undo 6 screws S on the panel
n Remove the panel 1
n Unscrew the Phillips screw between the supports of the
lamp holder on the defective headlight
n Turn the lens of the defective headlight anti-clockwise
about 1/4 of a turn 2 and take out reflector housing 3
n Replace light unit
n Insert reflector housing with new light unit in panel again
from below and secure with about 1/4 of a turn clockwi-
se. Make certain it engages properly, the label
HALOGEN on the headlight glass must be able to be read
horizontally 4
n Screw in again the screw between the supports, then
secure the panel with the 6 screws.
45
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English
User Instructions
KMR 1250 D
Adjusting the sweeping
pattern
n Open the unit cover and secure it in place.
ç The sweeping pattern can be altered by turning the cen-
tral adjusting knob.
– To increase size of sweeping pattern: turn adjusting
knob counter-clockwise (towards +).
– To reduce size of sweeping pattern: turn adjusting
knob clockwise (towards –).
After any adjustments have been made, check the sweeping
pattern.
n Drive the sweeper onto a dusty surface and apply the
parking brake.
n Lower the main brush (lever set to middle position) and
allow it to brush the floor for several seconds.
n Raise the main brush and drive backwards a short di-
stance with the bulk waste flap open (first release the
parking brake).
n The width of the sweeping pattern should be 30–50 mm.
Note:
The shape of the sweeping pattern should not be trapezoi-
dal. If it is, call customer service.
46
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KMR 1250 D
User Instructions
English
Replacing the main brush
roller
n Park the sweeper and switch off the engine
n Lower the brush roller.
n Open the RH side flap 1 (seen in direction of travel).
n Undo the retaining bolt on the lower forked head 2 and
swivel the push rod towards the rear.
n Unscrew the knurled knob 3.
n Remove the oscillating linkage 4.
n Open the flap over the end of the brush roller 5 (turn-lock
fastener).
n Pull out the brush roller 6.
n Screw in the knob for adjusting the sweeping pattern as
far as it will go (clockwise, towards –).
n Fit the new brush roller in reverse order to the removal
procedure.
Brush roller seen from above
Note:
Make sure the bristles point in the right direction – see
illustration.
n Set up the sweeping pattern by turning the adjusting knob
– see “Adjusting the sweeping pattern”.
Direction of travel
47
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English
User Instructions
KMR 1250 D
Replacing fuses
n Park the sweeper and switch off the engine.
n Open the unit cover.
n Replace defective fuses by a fuse having the same
current rating.
Note:
Multiple defects with the same fuse mean technical faults in
the electrical system. Please call Kärcher customer ser-
vice.
Replacing the dust filters
The dust filters should be inspected for damage every 50
operating hours.
A significant build-up of dust at the air outlet from the fan is
a sign of a filter that is not fitted properly or is defective.
n Raise the hopper half way 1.
n Release the catches on the filter box 2.
n Swivel the filter box forwards and lift it off 3.
n Open out the handle, pull it outwards and turn it through
90º (make sure it engages) 4.
n Remove the filter cartridge 5.
n Insert a new filter cartridge (pins should fit into the holes)
6.
n Turn the handle back to its original position and make
sure it locks in place.
n Mount the filter box and engage the catches.
48
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KMR 1250 D
User Instructions
English
Troubleshooting
Problem
Possible cause
Remedy
Engine does not start
Battery is flat
Recharge or replace battery
No fuel in tank
Fill up with petrol
Open fuel tap
Fuel tap is set to OFF
Seat contact switch not pressed
Sit down on the seat of the
sweeper
Sweeper does not move
Brushes do not rotate
Lever (bypass valve) on converter
transmission is open
Push lever in opposite direction
to travel – see “Pushing the
sweeper by hand”
V-belt has snapped
V-belt is loose
Call Customer Service
Check belt tension and adjust
as required
Main brush or side brush has been Remove blockage
jammed by packing bands or
similar item
No dust extraction
Fan is not working
Check V-belt
Filter is blocked
Clean or replace filters
Replace brushes
Poor sweeping results
Brushes are worn down
Waste hopper is full
Incorrect sweeping pattern
Empty waste hopper
Adjust sweeping pattern
Dust is stirred up during
sweeping
Worn out seals on sweeper, filter
not fitted properly or defective
Replace defective seals; fit filter
correctly or replace it
Lifting mechanism for
emptying hopper does not
work
Fuse has blown
Replace fuse or inform
Customer Service if fuse blows
repeatedly
Defective switch
Inform Customer Service
Inform Customer Service
Inform Customer Service
Defective hydraulic unit
Neutral position not set up
Sweeper travels forwards
or backwards even though correctly
drive pedal is not pressed
49
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English
User Instructions
KMR 1250 D
electric
Technical specifications
Dimensions and weights
Starter
Drive system
Length1.650mm
Width
Height
Maintenance-free, fully enclosed hydrostatically
driven axle with differential
Hydraulic fluid
1.000 mm
1.270 mm
Unladen weight (ready for operation 450 kg
Class
DIN HVLP 51524/2
46 c St /4 °C
1,4 L
Max. permissible overall weight
600 kg
Capacity *
Driving and sweeping performance
Max. travelling speed
Max. climbing ability/gradient
Effective sweeping width.
without side brush
* We recommend Wintershall Wiolan HV 46
Hydraulic Fluid.
Degree of Protection (IEC)
6 km/h
18 %
drip proof
IPX3
750 mm
1.000 mm
1.300 mm
with 1 side brush
with 2 side brushes
Ambient conditions
Temperature
Air humidity, not wet with dew
-5 to + 40 °C
0 - 90 %
Area rating (theoretical)
without side brush
with 1 side brush
6.000 m²/h
8.000 m²/h
10.400 m²/h
Operating cycle
with 2 side brushes
Under favourable conditions, the sweeper has
an operating cycle of 3 hours with a full fuel
tank at the start. The actual time is dependent
upon several factors:
–surface structure of the ground and how level
it is
Waste container
Theoretical capacity
Max. usable capacity
Lifting height
100 L
80 L
1.430 mm
6 m²
Filter surface area
–how well the sweeper has been maintained
–type of brush roller and its degree of wear.
Sweeping unit
Brush roller with V-shaped rows of bristles
Noise emission
Diameter of brush roller
Diameter of side brush
285 mm
450 mm
Sound level (EN 60704-1)
Guaranteed noise level
(2000/14/EC)
83,5 dB(A)
101 dB(A)
Vehicle tyres
Diameter
Pneumatic
300 mm
4.00-4
Machine vibration
Rated vibration value
(ISO 5349)
< 2,5 m/s²
Air pressure, front
Air pressure, rear
6 bar
6 bar
Lighting
Light unit
DIN 49848
HS3 6V/2,4 W
Engine
Model
Yanmar L70AE-DE
Type
Cylinders
Capacity
Output (5,9 HP at 3600 r.p.m.)
Fuel, diesel
4-stroke
1
296 cm³
4,4 kW
3.3 L
Engine oil
SAE15W40
1,1 L
Battery
12 Volt
44 Ah
50
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KMR 1250 D
1.091-114.0
1.091-134.0
6.654-116.0
>>MICROMP<< LADETECHNIK
6.414-526.0
24V 30A Wa
7.654-002.0
6.348-316.0
6.491-532.0
6.348-337.0
KMR
0
6.435-288.0
5
1
HER
6.435-331.0
6.491-640.0
6.303-058.0
6.435-295.0
7.651-002.0
6.651-382.0
6.303-125.0
6.905-986.0
7.312-003.0
7.313-003.0
6.682-378.0
5.031-452.0
7.644-017.0
7.644-007.0
6.644-277.0
7.306-501.0
6.435-289.0
7.644-018.0
6.435-295.0
6.435-331.0
06/99 - 01/02
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KMR 1250 D
1.091-114.0
1.091-134.0
KMR
0
5
1
KARCHER
5.190-055.0
5.394-439.0
5.190-082.0
5.190-083.0
5.365-215.0
5.190-089.0
5.365-216.0
5.031-378.0
5.190-084.0
5.190-084.0
6.905-982.0
5.190-082.0
4.038-524.0
5.190-083.0
5.365-215.0
06/99 - 02/02
Download from Www.Somanuals.com. All Manuals Search And Download.
Download from Www.Somanuals.com. All Manuals Search And Download.
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