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Detergents And General Operating Techniques - Kärcher HD 2.8/10 ST Ed B Operator's Manual

Hd series cold water - electric powered
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Table of Contents
Detergents And General Operating
Techniques
WARNING: Some detergents may
WARNING
be harmful if inhaled or ingested,
causing severe nausea, fainting or
poisoning. The harmful elements
may cause property damage or
severe injury.
AVERTISSEMENT: Certains
détergents peuvent être dangereux
s'ils sont inhalés ou ingérés,
provoquant de fortes nausées, des
évanouissements et l'empoisonnement. Les
éléments dangereux peuvent causer des
dommages à la propriété ou des blessures graves
STEP 1: Use detergent designed
specifically for pressure washers.
Household detergents could damage
the pump. Prepare detergent solution
as required by the manufacturer. Fill
a container with pressure washer
detergent. Place the filter end of
detergent suction tube into the
detergent container.
machine. Liquid detergent is drawn into the machine
and mixed with water. Apply detergent to work area. Do
not allow detergent to dry on surface.
STEP 2: Apply safety latch to
spray gun trigger. Secure black
detergent nozzle into quick
coupler. NOTE: Detergent
cannot be applied using the
Yellow nozzle.
STEP 3: With the motor
running, pull trigger to operate
Karcher HD 300-310 Operator's Manual 9.800-086.0 - P
IMPORTANT: You must flush the detergent
injection system after each use by placing the
suction tube into a bucket of clean water, then run
the pressure washer in low pressure for 1-2
minutes.
Thermal Pump Protection
If you run your pressure washer for 2 minutes without
pressing the trigger on the spray gun, circulating water in
the pump can reach high temperatures. When the water
reaches this temperature, the pump protector engages
and cools the pump by discharging the warm water onto
the ground. This thermal device prevents internal damage
to the pump.
Cleaning Tips
Pre-rinse cleaning surface with fresh water. Place
detergent suction tube directly into cleaning solution and
apply to surface at low pressure (for best results, limit your
work area to sections approximately 6' square and always
apply detergent from bottom to top). Allow detergent to
remain on surface 1-3 minutes. Do not allow detergent to
dry on surface. If surface appears to be drying, simply wet
down surface with fresh water. If needed, use brush to
remove stubborn dirt. Rinse at high pressure from top to
bottom in an even sweeping motion keeping the spray
nozzle approximately 1' from cleaning surface. Use over-
lapping strokes as you clean and rinse any surface. For
best surface cleaning action spray at a slight angle.
Recommendations:
Before cleaning any surface, an inconspicuous
area should be cleaned to test spray pattern and
distance for maximum cleaning results.
If painted surfaces are peeling or chipping, use
extreme caution as pressure washer may remove
the loose paint from the surface.
Keep the spray nozzle a safe distance from the
surface you plan to clean. High pressure wash a
small area, then check the surface for damage. If
no damage is found, continue to pressure
washing.
CAUTION - Never use:
Bleach, chlorine or other corrosive chemicals
Liquids containing solvents (i.e., paint thinner,
gasoline, oils)
Tri-sodium phosphate products
Ammonia products
Acid-based products
These chemicals will harm the machine and will damage
the surface being cleaned.
Rinsing
It will take a few seconds for the detergent to clear. Apply
safety latch to spray gun. Remove black soap nozzle from
the quick coupler. Select and install the desired high
pressure nozzle. NOTE: You can also stop detergent from
flowing by simply removing detergent siphon tube from
bottle.
Operations
11

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