Safety Devices - Kärcher HDS 9/18-4 M Manual Del Usuario

– We would like to point out that the appliance must
be repeatedly checked by a skilled person as pre-
scribed by the applicable national regulations.
Please contact your KÄRCHER partner.
– The appliance/accessories must not be modified.

Safety Devices

Safety devices serve for the protection of the user and
must not be put out of operation or bypassed with re-
spect to their function.
Overflow valve with two pressure switches
– While reducing the water supply at the pump head
or with the Servopress - regulation the overflow
valve opens and part of the water flows back to the
pump suck side.
– If the hand-spray gun is closed, so that the whole
water flows back to the pump suck side, the pres-
sure switch at the overflow valve shuts down the
pump.
– If the hand spray gun is opened, the pressure
switch on the cylinder head turns the pump back
on.
The overflow valve is set by the manufacturer and
sealed. Setting only by customer service.
– The safety valve opens, when the overflow valve
resp. the pressure switch is broken.
The safety valve is set by the manufacturer and sealed.
Setting only by customer service.
Water shortage safeguard
– The water shortage safeguard prevents the burner
to be turned on when there is water shortage.
– A sieve prevents the contamination of the safe-
guard and must be cleaned regular.
Temperature stop for exhaust gases
– The temperature stop switches off the machine
when the waste gases have reached very high tem-
peratures.
WARNING
Risk of injury! Appliance, accessories, supply lines and
connections must be in fault-free condition. If they are
not in a perfect state then the appliance must not be
used.
 Lock parking brake.
Installing the handle
Figure 3
ATTENTION
Hook the electric supply line into the cable guide of the
right handle bow. Be careful not to damage the cable.
Attach the wheel caps
Figure 4
Refill system care
Note: To protect the device, the burner is switched off 5
hours after the system care container is empty.
– The system care prevents the calcification of the
heating spiral while operating with calciferous tap
water. It is dosed into the supply in the float con-
tainer drop by drop.
18
Safety valve
Start up
– The metering is set to medium water rigidity by the
manufacturer
 Refill system care.
Adjusting the dosage of the system care
Advance RM 110/RM 111
 Determining the hardness of tap water:
– through the public water supply works,
– using a hardness tester (order no. 6.768-004)
Water hardness
(°dH)
<3
3...7
7...14
14...21
>21
 Set the service switch according to the water hard-
ness in the table.
Note:
– RM 110 prevents calcification of the heating coil in
the presence of hard water.
– RM 111 prevents the formation of black water and
cares for the pump in the presence of soft water.
DANGER
Danger of explosion! Only refill diesel oil or light fuel oil.
Inappropriate fuels, e.g. petrol, must not be used.
ATTENTION
Risk of damage! Never operate device with an empty
fuel tank. The fuel pump will otherwise be destroyed.
 Refill fuel.
 Close tank lock.
 Wipe off spilled fuel.
DANGER
Risk of injury!
– Use Kärcher products only.
– Under no circumstances fill solvents (petrol, ace-
ton, diluting agent etc.)
– Avoid eye and skin contact.
– Observe safety and handling instructions by the de-
tergent manufacturer.
Kärcher offers an individual cleaning and care ap-
pliances program.
Your dealer will consult you gladly.
 Refill detergent.
Install the hand-spray gun, the jet pipe, the
nozzle and the high pressure hose
Note: The EASY!Lock system joins components with a
quick-fasten thread solidly and securely with just one
turn.
Figure 5
 Join the spray lance with the trigger gun and tighten
until hand-tight (EASY!Lock).
 Insert the high pressure nozzle onto the spray
lance.
 Install union nut and hand-tighten it (EASY!Lock).
 Join the high-pressure hose with trigger gun and
high-pressure connection of the appliance and
tighten until hand-tight (EASY!Lock).
– 3
EN
Scale on the ser- System care
vice switch products to be
used
3 (presetting) RM 111
1 RM 110
2 RM 110
3 (presetting) RM 110
4 RM 110
Refill fuel
Refill detergent