12
English
1750 GM
2. Operation
2.1 Operating with high pressure
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Start the engine while observing the engine
manufacturer’s operating instructions.
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Release the safety catch on the hand gun, and
press the lever.
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The working pressure can be continuously adjus-
ted by turning the outer shell of the spray lance
(+/-).
2.2 Operating with detergent
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Set the lowest working pressure with the spray
lance. No detergent can be drawn in with a high
working pressure.
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Hang the detergent suction hose into the deter-
gent reservoir (not supplied with the unit).
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To protect the environment, we recommend to
use detergents sparingly. Observe the metering
and/or mixing instructions provided on the pack-
aging labels of the detergent supply containers.
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By offering you an individualised range of clea-
ning and preserving agents, Kärcher guarantees
trouble-free operation of the unit. Request more
information or ask for our catalogue and/or indivi-
dual information brochures on specific detergents.
Universal cleaner
Profi RM 555 ASF
This cleaning agent may be used undiluted.
Universal cleaner
Profi RM 555 ULTRA
Automotive cleaner
Profi RM 555 ULTRA
House and garden cleaner Profi RM 565 ULTRA
Boat cleaner
Profi RM 575 ULTRA
Before using, these cleaning agents must be diluted
with 9 parts of water (1:9).
Note:
Only cleaning agents approved by the equipment
manufacturer may be used. Unsuitable detergents
may damage the unit and the object being cleaned.
We recommend the following cleaning method:
Step 1: Pre-soaking the area to be cleaned.
Spray the detergent sparingly onto the area to be
cleaned and allow to soak for 1 – 4 minutes.
Step 2: Cleaning step
Using the high-pressure jet, flush the area clean.
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After using a detergent, the unit should be flushed
with clean water. To do this, hang the detergent
suction hose into a container filled with clean
water, and operate the pump for approximately
1 minute.
2.3 Work interruptions
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To prevent damage caused by overheating water,
switch OFF the pump during work breaks that are
longer than 15 minutes.
2.4 Switching OFF the unit
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After operating the unit with water having a high
saline content (i.e., sea water), the unit should be
flushed for 2 – 3 minutes with tap water while the
handgun is open.
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Set the throttle to the STOP position.
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Close the water supply valve and unscrew the
water supply line from the water inlet of the unit.
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Actuate the handgun trigger until the unit is no
longer pressurised.
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Prevent inadvertent opening of the handgun trig-
ger by locking it with the safety catch.
