Kärcher HDR 777, Manual

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The waste water with oil content is pumped
using a dirt water pump (14) and/or a dirt
collector attachment set from the dirt collect
(1) into the reaction tank (3) of the plant.
Depending on the pre-set operations type,
the following takes place in the reaction
tank:
If you use liquid splitting agent:
– Add liquid splitting agent from the dos-
ing unit (4) whereby the dosing quantity
needs to be adjusted to match the level
of dirt in the waste water.
– Homogenous mixing of splitting agent
and waste water by stirring and circula-
tion using the bypass pump (18).
– Formation of flakes when dirt binds with
emulgated oil.
– Pumping the mixture of flakes and puri-
fied water to the recycling filter (7) using
the emptying pump for liquid splitting
agent (16). From there, it ultimately
reaches the storage tank for processed
water (9).
If you use liquid splitting powder:
– Add splitting powder from the dosing
unit (5) whereby the dosing quantity
needs to be adjusted to match the level
of dirt in the waste water.
– Homogenous mixing of splitting powder
and waste water by stirring and circula-
tion using the bypass pump (18).
– Formation of flakes when dirt binds with
emulgated oil.
– Use the emptying pump for splitting
powder (17) to pump the mixture of
flakes and cleaned water to the filter for
splitting powder (8). Depending on the
operations type that has been set, it will
then go from there via the waste water
cock (13) to the waste water drainage
system or via a connection hose be-
tween the waste water cock (13) and
the drainage cock (10) to the storage
tank for processed water (9).
Depending on the installation version,
the purified waste water from the stor-
age tank for processed water can be
used as follows:
– Pump the purified water to an external
buffer tank (optional) iva the drain cock
for processed water (19) using the sup-
ply pump for high-pressure cleaner for
further use at a later stage.
– Pump the purified water to a high-pres-
sure cleaner using the high-pressure
cleaner supply pump (12) via the drain
cock for processed water (19) and link-
ing it through the control pipe of the
ASA/HDS attachment set.
Alternately, the plant can also be con-
nected to a high-pressure cleaner via
the HDS - ASA/HDR and the fresh wa-
ter remote conrol attachment set.
In the two recycling versions, water scarcity
(caused by carrying and evaporation) is
balanced out through fresh water supply.
The fresh water can be used for rinsing
processes if the HDS - ASA/HDR attach-
ment set is used.
Sterilisation agent (6) must be added via
the dosing container (6) to regain washing
water. This can help in avoiding bad odour
due to formation of bacteria.
Optionally, you can also install a floater
switch in the dirt collector to prevent over-
flowing. When the floater switch is activat-
ed (dirt collector is full), the water supply to
the high-pressure cleaner is blocked. This
takes place till the floater switch in the dirt
collector releases the system again.
Note: The plant is to be installed and start-
ed only by Kärcher or a dealer trained by
Kärcher.
See "Plant Installation" for installation in-
structions.
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Danger
Risk due to irritating/ caustic chemicals that
can cause serious injury to skin and eyes.
Therefore: Do not eat, drink or smoke.
Wear personal safety gear:
– Hand protection: Rubber gloves
– Eye protection: Safety goggles
– Protection for body: Overalls
Ensure proper ventilation!
First aid!
– After skin contact: immediately rinse
with water; then clean with soap.
– After coming in contact with eyes: rinse
with water immediately (15 minutes);
consult the doctor.
– After swallowing in: immediately rinse
the mouth with lots of water or drink lots
of water (see EG safety data sheet); do
no induce vomitting; consult a doctor.
– After breathing in: Breath in fresh air;
clear the respiratory path.
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Danger
Danger of crushing on account of the dos-
ing equipment. Top up splitting agent only
when the plant is switched off.
Caution
Damage to the plant due to wrong chemi-
cals. Only use the chemicals that have
been approved and recommended by the
manufacturer.
The treatment chemicals are added in var-
ying proportions depending on the opera-
tions model and area of use.
– Use only in models where splitting pow-
der is to be used.
Î Fill in the splitting powder up to maxi-
mum 2/3 of the container. Comply with
safety regulations on the handling of
splitting powder.
– Use only in models where liquid splitting
agent is to be used.
– RM 847 mmust be prepared according
to details on the label or on the product
info sheet. RM 847 must always be di-
luted and used fresh because the dilut-
ed solution is not stable over a longer
period of time.
Î Fill in the prepared splitting agent solu-
tion into the container. Comply with
safety regulations for handling RM 847.
– For all operation types where washing
water is reused.
Î Fill the sterilisation agent in the mixing
unit container provided for the purpose.
Follow the safety instructions of the
manufacturer of the sterilisation agent.
Note: The dosing quantities of the above-
mentioned product are set at the factory to
an average value! The dosing quantities
must be adjusted by the Customer Service
mechanic at the installation site at the time
of start-up to match the level of dirt in the
waste water.
Functional description
Control elements
a Main switch
b Indicator lamp "Operations"
(green)
C Indicator lamp "Fault" (red)
d Indicator lamp "Splitting process
On" (green)
E Operating hour counter
Start up
Chemicals and dosing equipment
4 Dosing container for liquid splitting
agent RM 847
5 Dosing unit for powder splitting
agent RM 846
6 Dosing container for sterilisation
agent RM 851
Splitting powder RM 846
Liquid splitting agent RM 847
Sterilisation agent RM 851
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