Karcher KM 120-150 R D - Manual (Page 22)

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ensures that the appliance can be oper-
ated safely and trouble free.
– At the end of the operating instructions
you will find a selected list of spare
parts that are often required.
– For additional information about spare
parts, please go to the Service section
at www.kaercher.com.
ƽ
DANGER
Immediate danger that can cause severe
injury or even death.
ṇ
WARNING
Possible hazardous situation that could
lead to severe injury or even death.
CAUTION
Possible hazardous situation that could
lead to mild injury to persons or damage to
property.
Hauptverband der gewerblichen Beruf-
sgenossenschaften e.V. (HVBG / Germa-
ny). Liquified gases (propellants) are
butane and propane or a mixture of butane/
propane. They are available in special cyl-
inders. The operating pressure of these
gases depends on the outside tempera-
ture.
ƽ
Danger
Risk of explosion! Do not handle liquified
gas like petrol. Petrol evaporates slowly,
liquified gas immediately turns into gas.
The risk of gas spreading in the room and
getting ignited is thus higher in case of liq-
uefied gas than in petrol.
ƽ
Danger
Risk of injury! Use only liquefied gas cylin-
ders with propellant filled according to DIN
51622 of A or B quality, depending on the
surrounding temperature.
CAUTION
Use of cooking gas is strictly prohibited. For
the gas engine, use only liquid gas mix-
tures of propane/ butane or their mixtures
where the mixing ratio lies between 90/10
to 30/70. On account of better cold start be-
haviour even at low outside sub-zero tem-
peratures (below 0° C / 32 °F) always
prefer a mixture with a higher propane
share because evaporation takes place
even at low temperatures.
– All persons handling liquid gases are li-
able to acquaint themselves with the
special properties of the liquefied gases
for hazard-free handling of operations.
The current documentation is always to
be kept with the sweeper.
– Propellant-operated units are to be
checked at regular intervals, at least
once a year, by an expert against leaks
(according to BGG 936) and ensure
that the unit is functioning properly.
– The inspection must be certified and
documented. The inspection guidelines
are § 33 and § 37 UVV (occupation ac-
cident prevention regulations) "Use of
liquid gas" (BGV D34).
– General applicable regulations are the
guidelines for inspecting vehicles
whose engines are driven by liquefied
gases of the Federal Transportation
Minister.
– Gas must always be drawn only from
one cylinder. Drawing gas from multiple
cylinders simultaneously can cause liq-
uid gas from one cylinder flowing into
the other. This causes the over-filled
cylinder to be subjected to an unpermit-
ted excess pressure when the cylinder
valve is closed later (refer B.1 of these
guidelines).
– Ensure the correct positioning of the
cylinder with the "top" marking while
connecting a full cylinder (the connec-
tion screw points vertically upward).
Perform the replacement of the gas cylin-
der carefully. During assembly and disas-
sembly, the gas outlet nozzle of the
cylinder valve must be sealed by means of
a cap nut that is tightened using a wrench.
– Discontinue the use of leaky gas cylin-
ders. Such cylinders are to be emptied
by slowly letting out the gas in open
spaces by conforming to all safety reg-
ulations and are to be indicated as
leaky. Also inform the issuing company
or its representative (the filling-station
attendant) in writing about the damage
to the cylinder while delivering or re-
ceiving the cylinders.
– Before connecting the gas cylinder,
check that its connection neck is in a
proper state.
– After connecting the cylinder, regularly
check that it is not leaky by using a
foaming agent.
– Open the valves slowly. Do not use
hammers to open and close the cylin-
ders.
– Use only dry fire extinguishers (with
carbonic acid gas) in case of fire
caused by liquefied gases.
– The entire LPG unit must be continu-
ously checked to ensure that there are
no leaks and the unit is functioning
properly. Using the vehicle with a leaky
gas unit is strictly prohibited.
– First close the cylinder valve before
loosening the pipe or tube connection.
Unscrew and loosen the connection nut
of the gas cylinder slowly because oth-
erwise the gas under pressure in the
tube will flow out instantly.
– If the gas is refilled from a larger tank,
then ask the sales agent of the LPG
about the important regulations to be
followed.
ƽ
Danger
Risk of injury!
– LPG in a liquid state can cause frost
bites on bare skin.
– After disconnecting the cylinder, tighten
the closing nut firmly on the connecting
threading of the cylinder.
– Use soap water or some such foaming
agent to check whether the cylinder is
leaking. The use of open flames to illu-
minate the LPG unit is strictly prohibit-
ed.
– Follow the manufacturer's installation
specifications while changing individual
parts of the LPG unit. Close all cylinder
and locking valves while doing so.
– Regularly check the status of the elec-
trical unit of the LPG vehicles . Sparks
can cause explosions if the gas-carry-
ing parts of the unit are leaky.
– If a LPG-driven vehicle has been idling
for a long time, then first ventilate the
Symbols on the machine
Risk of burns on ac-
count of hot surfaces!
Allow the exhaust to
cool down sufficiently
before starting work on
the machine.
Symbols in the operating instruc-
tions
Safety Guidelines for liquified gas
vehicles (only KM 120/150 R LPG)
Liabilities of the factory management
and the employee
Maintenance by expert
Commissioning/Operations
22 EN