Kärcher HDS3.5/20 Operator'S Manual Download

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9.801-509.0 - C • Karcher Operator's Manual

PRESSURE W

ASHER

MAN

98015080-19

Detergent

Valve

WARNING: Some de ter gents
may be harm ful if in haled or
in gest ed, caus ing severe nau-
sea, fainting or poi son ing. The
harm ful el e ments may cause
prop er ty dam age or severe
in ju ry.

STEP 1:

Use detergent de signed

spe cifi cal ly for pres sure wash-
ers. House hold de ter gents could
dam age the pump. Pre pare de-
tergent so lu tion as required by
the man u fac tur er. Fill a container
with pres sure wash er de ter gent.
Place the fi lter end of detergent
suction tube into the de ter gent
container.

STEP 2:

Open de ter gent valve coun ter clock wise

un til you ob tain de sired mix ture. De ter gent will mix
with the high pres sure wa ter stream.

STEP 3:

With the motor run ning,

pull trig ger to op er ate ma chine.
Liq uid de ter gent is drawn into the
ma chine and mixed with water.
Apply de ter gent to work area.
Do not al low de ter gent to dry on
sur face.

IMPORTANT: You must fl ush the detergent from
your pressure washer after each use by plac ing
the suc tion tube into a buck et of clean wa ter,
then run the pres sure wash er for 1-2 minutes.

NOTE:

If you remove detergent si phon tube from

con tain er or allow container to empty, it will cause
low pres sure by suck ing air, which will damage
the pump.

THERMAL PUMP

PROTECTION

If you run the engine for 3-5 min utes with out pressing
the trig ger on the spray gun, cir cu lat ing water in the
pump can reach high tem per a tures. When the water
reach es this tem per a ture, the pump pro tec tor en gag es
and cools the pump by dis charg ing the warm wa ter
onto the ground. This ther mal de vice pre vents in ter nal
dam age to the pump.

CLEANING TIPS

Pre-rinse clean ing surface with fresh water. Place
de ter gent suc tion tube di rect ly into clean ing solu-
tion and ap ply to surface. For best re sults, limit your
work area to sec tions ap prox i mate ly 6 feet square
and always ap ply de ter gent from bottom to top. Allow
de ter gent to re main on sur face 1-3 min utes. Do not
al low de ter gent to dry on sur face. If sur face ap pears
to be dry ing, sim ply wet down sur face with fresh wa ter.
If need ed, use brush to re move stub born dirt. Rinse at
high pres sure from top to bottom in an even sweep ing
mo tion keep ing the spray nozzle ap prox i mate ly 1 foot
from clean ing sur face. Use over lap ping strokes as you
clean and rinse any sur face. For best surface clean ing
ac tion spray at a slight an gle.

Recommendations:

• Before cleaning any surface, an inconspicuous

area should be cleaned to test spray pattern and
dis tance for maximum cleaning results.

• If painted surfaces are peeling or chipping,

use ex treme caution as pressure washer may
re move the loose paint from the surface.

• Keep the spray nozzle a safe distance from the

sur face you plan to clean. High pressure wash a
small area, then check the surface for damage. If
no dam age is found, continue to pressure wash ing.

CAUTION - Never use:

• Bleach, chlorine products and other corrosive

chem i cals

• Liquids containing solvents (i.e., paint thinner,

gas o line, oils)

• Tri-sodium phosphate products

• Ammonia products

• Acid-based products

These chemicals will harm the machine and will
dam age the surface being cleaned.

RINSING

Turn detergent valve clockwise to close. Operate
pres sure washer and allow a few sec onds for the
de ter gent to clear.

WARNING