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3. FUEL RECOMMENDATIONS
This engine will operate satisfactorily on any gasoline
intended for automotive use. A minimum of 77 octane is
recommended. DO NOT MIX OIL WITH GASOLINE.
Use clean, fresh, lead-free gasoline. Leaded gasoline
may be used if lead-free is not available. The use of lead-
free gasoline results in fewer combustion deposits and
longer valve life.
Purchase fuel in quantity that can be used within 30 days.
This will assure fuel freshness and volatility tailored to the
season.
Note:
We DO NOT recommend the use of gasoline which
contains alcohol, such as gasohol. However, if gasoline
with alcohol is used, it must not contain more than 10
percent Ethanol and MUST be removed from the engine
during storage. DO NOT use gasoline containing Metha-
nol. See storage instructions.
Caution
Do not fill fuel tank to point of overflowing. Allow
approximately 1/4 in. of tank space for fuel expansion.
4. WATER SUPPLY'
- The garden hose must be at least 25 feet long with a
dia-meter of at least 1/2".
- The flow rate of the water supply must not fall below
3 GPM and the temperature must not exceed 140 °F.
- The water inlet to the cleaner is protected by a strainer
which should be checked from time to time to keep it
clear of contamination.
Important
When connecting the water inlet to the water supply
mains, local regulations of your water company must
be observed. In some areas the unit must not be
connected directly to the puplic drinking water supply.
This is to ensure that there is no feedback of deter-
gents into the water supply.
Direct connection via receiver tank or backflow pre-
venter for example, is permitted. (A backflow preven-
ter is obtainable from Kärcher under Order No. 6.412-
578)
I. I M P O R T A N T N O T E S
Suction operation
It is also possible to draw water by suction from an open
tank.
• If this is required, the cleaner should be fitted with a
suction hose with filter (Kärcher Order No. 4.440-238).
• The level of the water must not be more than 3 ft below
the unit.
Important
Never use the unit to suck in liquids containing
solvents, e.g. paint thinners, petrol, oil, etc. or unfil-
tered water. The seals in the unit are not resistant to
solvents. When solvents are sprayed the fine mist is
highly flammable, explosive and poisonous. Grit
particles in unfilterd water could damage both the unit
and the object being cleaned.
5. PREPARING UNIT
- Before starting for the first time fill the engine with
oil 1.25 pt. (0,6 l). DO NOT overfill.
- Attach the handlebar and the holder (packed loose in the
box). Tighten down the screws securely.
- Press the spray wand into the trigger gun against the
spring tension and turn it as far as the stop.
- The spray wand must lock into position.
- Screw quick coupler male to the water inlet connection.
- Screw quick coupler female to your garden hose.
5
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