Operating instructions

9.801-509.0 - D • Karcher Operator's Manual
19
PRESSURE WASHER
MANUAL
98015080-19
Detergent
Valve
WARNING: Some detergents
may be harmful if inhaled or
ingested, causing severe nau-
sea, fainting or poisoning. The
harmful elements may cause
property damage or severe
injury.
STEP 1: Use detergent designed
specifically for pressure wash-
ers. Household detergents could
damage the pump. Prepare de-
tergent 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.
STEP 2: Open detergent valve counterclockwise
until you obtain desired mixture. Detergent will mix
with the high pressure water stream.
STEP 3: With the motor running,
pull trigger to operate 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.
IMPORTANT: You must flush the detergent from
your pressure washer after each use by placing
the suction tube into a bucket of clean water,
then run the pressure washer for 1-2 minutes.
NOTE: If you remove detergent siphon tube from
container or allow container to empty, it will cause
low pressure by sucking air, which will damage
the pump.
THERMAL PUMP
PROTECTION
If you run the engine for 3-5 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 solu-
tion and apply to surface. For best results, limit your
work area to sections approximately 6 feet 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 foot
from cleaning surface. Use overlapping 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 products and 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
Turn detergent valve clockwise to close. Operate
pressure washer and allow a few seconds for the
detergent to clear.
WARNING
98015080-20
98015080-18
APPLYING DETERGENT & GENERAL OPERATING TECHNIQUES