Kärcher KMR 1250 LPG User manual

5.959-012 A2004624 (11/02)
KMR 1250 LPG
1.091-106
1.091-116
www.karcher.com

Français
Deutsch Betriebsanleitung für Anwender Seite 3
User Instructions Page 25
Notice d’instructions pour l’utilisateur Page 47
Bruksanvisning for bruker Side 69
Bruksanvisning Sida 91
Instrucciones de manejo para usuarios Página 113
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KMR 1250 LPG User Instructions English
25
Contents Safety Regulations................................................................................................ 26
Liquefied gas ................................................................................................................ 26
On behalf of the environment ....................................................................................... 27
Safety Directives for LPG Motor Vehicles .............................................................28
Obligations of the factory management and the employee ......................................... 28
Maintenance by experts ............................................................................................... 28
Initial operation/operation............................................................................................. 28
In storage rooms and in repair workshops ................................................................... 29
Intendedusage ..................................................................................................... 30
Sweeperfunctions ................................................................................................ 30
Prior to initial start-up............................................................................................ 31
Unloading procedure.................................................................................................... 31
Pushing the sweeper .................................................................................................... 31
After pushing the sweeper............................................................................................ 31
Open cover.................................................................................................................... 31
Operatingcontrols................................................................................................. 32
Preparing the sweeperfor use............................................................................... 33
Installing/changing the gas cylinder............................................................................. 33
Adjusting the driver’s seat............................................................................................. 33
Starting the sweeper..................................................................................................... 34
Initial driving trials ......................................................................................................... 34
Moving off and sweeping.............................................................................................. 34
Braking.......................................................................................................................... 34
Stopping the sweeper and switching off....................................................................... 34
Emptyingthewaste hopper................................................................................... 35
Important information .................................................................................................... 35
Cleaningthefilter .................................................................................................. 35
Automatic cleaning ....................................................................................................... 35
Manual cleaning ........................................................................................................... 35
Typicalapplications............................................................................................... 36
Sweeping on dry ground .............................................................................................. 36
Sweeping on damp or wet ground ............................................................................... 36
Picking up larger items (sticks, tins, etc.) ...................................................................... 37
Overcoming obstacles .................................................................................................. 37
Shutting thesweeper down for longerperiods ....................................................... 37
Cleaningandcare ................................................................................................. 36
Maintenance ......................................................................................................... 38
First engine oil change ................................................................................................. 38
Initial inspection after 8 operating hours ...................................................................... 38
Daily maintenance........................................................................................................ 38
Maintenance intervals .................................................................................................. 38
Maintenance tasks................................................................................................ 39
Checking tyre pressures ............................................................................................... 39
Checking the oil level ................................................................................................... 39
Filling up with oil ........................................................................................................... 39
Changing the engine oil ............................................................................................... 40
Cleaning or replacing the air cleaner........................................................................... 40
Check gas installation .................................................................................................. 40
Checking the hydraulic system..................................................................................... 40
Safety information which must be observed when handling batteries. ....................... 41
Checking the level of electrolyte in the battery............................................................. 41
Charging the battery ..................................................................................................... 41
Replacing the sealing skirts ......................................................................................... 42
Replacing the side brush.............................................................................................. 42
Replace light unit .......................................................................................................... 42
Adjusting the sweeping pattern .................................................................................... 43
Replacing the main brush roller ................................................................................... 43
Replacing fuses ............................................................................................................ 44
Replacing the dust filters .............................................................................................. 44
Troubleshooting ..................................................................................................... 45
Technical specifications ........................................................................................ 46

English User Instructions KMR 1250 LPG
26
Safety Regulations General statutory regulations on safety and accident prevention, e.g. VBG 1
and VBG 12, must be observed in addition to the information contained in
these Operating Instructions. Always read the Operating Instructions first
before using the machine, even if you have worked with similar motor
sweeping machines before. It is essential to familiarize yourself with all
features and operating controls of the machine, as well as with their functions
before starting work.
– Check the gas system for leaks.
– Close the tank valve immediately if there is a leak. Put into operation
again only after the cause of the fault has been removed.
– Motor sweeping machines must be used only by suitable persons who are
trained to operate them, who have demonstrated their ability to operate
the machine to the contractor or his authorized agent and who are expres-
sly instructed by them to operate the machine.
– Use the motor sweeper only on those areas for which the contractor or his
authorized agent have given their approval.
– The operator must leave the machine only if the motor has been switched
off, the gas cylinder has been closed, the machine has been secured
against unwanted movement, the parking brake has been applied and the
key has been removed.
– The key should be removed to prevent unauthorized use of the machine.
– When transporting the machine the motor should be stopped and the gas
cylinder closed.
– The unit should be fastened securely by means of stop points and fixing
straps or ropes when it is being carried on a transport vehicle.
– The operator should use the machine only for its intended purpose. The
operator should taken local conditions into account when driving and give
consideration to third parties, in particular children, when working.
– It is forbidden to remain in an area of danger.
– Check that the machine is in perfect condition and operationally safe
before using it. The machine must not be used if it is not in proper working
condition.
– The warning and information signs on the machine give important informa-
tion for safe operation.
– Never allow other persons to ride or be carried on the machine.
– Riding machines must be set in motion only from the driver’s seat.
– The machine must be used only in areas where dust does not represent
a health risk (category “U” dust).
– Proper maintenance is essential for the prevention of accidents.
– Switch off the motor and remove the key before cleaning and servicing the
machine or replacing parts.
– When working on the electrical system always remove the battery connec-
tor or disconnect the battery (negative terminal).
– Suitable tools should be used for maintenance, repair and installation
work, etc. Maintenance work on the fuel gas system must be carried out
only by trained personnel.
– Do not sweep up burning or glowing objects.
– The motor sweeper should be protected from excessive heat above 70° C
(radiators, sunlight, etc.).
Liquefied gas
Only use liquefied gas cylinders with propellant gas filling of Quality A or B,
as specified in DIN 51 622, in accordance with ambient temperature.

KMR 1250 LPG User Instructions English
27
Note:
The use of domestic gas is absolutely forbidden!
For gas engines it is permitted to use liquefied gas mixtures of propane/
butane whose mixing ratio lies between 90/10 and 30/70.
Owing to the better cold start properties, it is preferable to use liquefied gas
with a high propane proportion for external temperatures below 0 °C (32 °F),
for evaporation begins to take place already at low temperatures.
Replacement parts
Please note that the use of other than original replacement parts can lead to
serious malfunctions and also to bad accidents, if such parts have not been
properly manufactured, or do not precisely replace the original part or lead to
unsafe operation of the appliance. Please always use only original replace-
ment parts.
Accessories
Wrong, non-suitable or defective accessories hamper the functioning of the
appliance. Their use is dangerous. Please use only original accessories.
Otherwise the right to claim under guarantee can be extinguished.
Fire hazard while sweeper is operating!
nKeep 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.
nThe maximum gradient up or down which the sweeper can be driven is 18%.
nDo 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!
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:
nRemove the ignition key.
nDisconnect 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.
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.
nApply the parking brake.
nSecure the sweeper as shown in the illustration, using
– web belts or
– ropes or
– chains.

English User Instructions KMR 1250 LPG
28
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.
Safety Directives
for LPG Motor
Vehicles
Liquified petroleum gases (fuel gases) are butane and propane or butane/
propane mixtures. They are supplied in special cylinders. The working pres-
sure of these gases is dependent on the outside temperature.
Caution:
Do not treat liquified petroleum gas in the same way as petrol. Petrol vapori-
zes slowly. Liquified petroleum gas becomes gaseous immediately. The
danger of gas spreading in an enclosed area and igniting is therefore greater
than with petrol.
Therefore:
Be doubly careful; no open flames – ovens, storm lamps, etc. – do not smoke
in storage locations or when carrying out any kind of work on the LPG sy-
stem.
Obligations of the factory management and the employee
All persons handling liquefied gas have an obligation to acquire the know-
ledge regarding the characteristics of liquefied gas which is necessary to
execute their work free of danger. This booklet must always accompany the
sweeper.
Maintenance by experts
Fuel gas systems must be regularly checked by an expert, at least once a
year, for their functioning capability and freedom from leaks (as per ZH 1/57).
The inspection must be attested in writing. The bases for the inspection are §
33 and § 37 UVV (Accident Prevention Regulations) “Use of liquefied gas”
(VGB21 (Association of Superpower Station Operators)).
Initial operation/operation
– Gas may only be used from one cylinder. Using gas from several cylin-
ders simultaneously may result in liquified gas flowing from one cylinder
into another; this will create a non-permissible pressure increase when the
cylinder valve on the overfilled cylinder is subsequently closed (comp. B1
of these guidelines).
– When fitting full cylinders, the correct position of the cylinder is denoted by
“top”. Gas cylinders should be replaced carefully. When installing or
removing, the gas outlet connection fitting of the cylinder valve must be
sealed with a hexagon cap nut which is screwed down with a key.
– Never continue using gas cylinders which are leaking. Following all rele-
vant safety precautions, they should be emptied immediately in the open
air by releasing the gas and then marked as leaking.
When delivering or collecting damaged gas cylinders, the distributor or his
agent (filling station attendant or similar) should be informed immediately
in writing of the existing damage.
– When returning damaged gas cylinders, the distributor or his agent (filling
station attendant or similar) should be informed immediately in writing of
the existing damage.
– After connecting the cylinder, check for leaks using a foaming agent.
– The valves should be opened slowly. They must not be opened or closed
with the aid of striking tools.
In the event of liquified petroleum gas catching fire use only carbon dioxi-
de powder-type fire extinguishers or carbon dioxide gas extinguishers.

KMR 1250 LPG User Instructions English
29
– The entire LPG system must be monitored continuously to ensure that it is
in a safe operating condition and, in particular, is not leaking. The vehicle
must not be used if the gas system is leaking.
– The cylinder valve must be closed before disconnecting the pipe or hose
connection. The connection nut on the cylinder must be opened slowly
and only slightly at first, otherwise the gas which is still under pressure in
the line will flow out spontaneously.
Caution:
Liquified gas which comes into contact with skin causes frostbite!
– Following disassembly, the lock nut must be screwed firmly onto the
connecting thread.
– Soap water, a soap bubble solution or other foaming agents should be
used when testing for leaks. It is forbidden to inspect the LPG system
using a naked flame.
– The installation directions of the manufacturer should be observed when
replacing individual system parts. The cylinder and main shut-off valves
should be closed when doing this.
– The condition of the electrical system of LPG vehicles should be monito-
red continuously. Sparks may cause explosions if system parts which
convey gas are leaking. If an LPG vehicle has been stored for a prolonged
period the storage room should be thoroughly ventilated before putting the
vehicle or its electrical systems into operation.
– The Industrial and Commercial Association and the responsible Trade
Supervisory Office must be informed immediately of any accidents which
occur in connection with gas cylinders or the liquified gas system. Dama-
ged components must be kept until the investigation has been concluded.
In storage rooms and in repair workshops
– The storage of power gas and liquefied-gas cylinders must be effected in
accordance with the stipulations of TRF 69 (Technical Regulations for
Liquefied Gas).
– LPG motor vehicles must not be stored in the same room with generator
vehicles.
– The cylinder and main shut-off valves should be closed immediately after
putting the motor vehicle into storage.
– The terms of the relevant legislation on garages and the relevant state
building regulations apply to the location and nature of the storage places
for fuel gas motor vehicles.
– The gas cylinders should be stored in special areas which are separate
from the storage rooms. Refer to “Handling and Storage of Filled Tanks” of
the Technical Principles of the “Statutory Regulation on Pressure Gas”.
– The electrical hand lamps which are used in these places must have a
closed, sealed globe and a rigid basket guard.
– When carrying out work in repair workshops the cylinder and main shut-off
valves should be closed and the fuel gas cylinders protected against heat.
Before interrupting or ending work a responsible person should check
whether all valves, in particular cylinder valves, are closed. Work involving
the use of naked flames, in particular welding and cutting work, must not
be carried out in the vicinity of fuel gas cylinders. Fuel gas cylinders must
not be stored in the workshops, even if they are empty.
– The storage rooms and workshops must be well ventilated. It is important
to remember that fuel gases are heavier than air. They concentrate on the
ground, in repair pits and other floor recesses and may form explosive
gas-air mixtures.

English User Instructions KMR 1250 LPG
30
Intended usage This sweeper
– is intended for use as a sweeper of dirty surfaces in an outside environ-
ment,
– corresponds to Usage Category “U” for dust that is not injurious to health,
– can only be used on public paths and highways if it has been fitted with
the StVZO Accessory Kit.
Sweeper functions Main components
Drive
– driven by means of 1-cylinder petrol engine which is converted to operate
on liquefied petroleum gas (6.6 kW in compliance with SAE J 6070a)
– stepless hydraulic drive system to the rear wheels
– drive of main brush and side brush by means of belt drive
– hydraulically operated emptying of the waste hopper
– powerful dynamo
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 m2effective surface area
– electric filter cleaner with automatic shaking mechanism

KMR 1250 LPG User Instructions English
31
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 transpor-
ted 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 transport. Undo the cord
holding it in place.
Pushing the sweeper
When you want to move the machine without automotive power
nOpen engine cover having previously disassembled seat, for which see
Chapter “Open cover”
çSet free-wheeling lever to position “OFF”
nRelease parking brake
nMove sweeper
Note:
Do not move the sweeper over comparatively long stretches or at speeds
over 10 km/h (e.g. when being towed).
After pushing the sweeper
nPut parking brake on.
nSet free-wheeling lever to position “ON”
Open cover
To open the cover the seat has to be removed.
nPull off spring connector 1and pull out rod 2.
nRemove driver’s seat
nOpen cover to engine by grasping the handle grip under the driver’s seat
and folding the cover up or backwards.
!

English User Instructions KMR 1250 LPG
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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
11. Parking brake / Driving brake
12. Tip waste hopper *
13. Raise waste hopper *
14. Lower waste hopper *
15. Filter cleaning
16. Sweeping mode, wet / dry
17. Drive pedal
18. Horn
19. Steering wheel
* Function only operative in conjunction with 7 (two-handed operation).