Kärcher HDS 7/9-4 M Mode D'emploi page 22

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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
Replace the system care bottle
Note: Push the bottle in securely to penetrate the clo-
sure. Do not remove bottle until it is empty.
Note: To protect the device, the burner is switched off 5
hours after the system care bottle 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.
The metering is set to medium water rigidity by the
manufacturer
Note: A system care bottle is included in the delivery.
 Replace the system care bottle.
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
Scale on the service switch
(°dH)
<3
OFF (no dosing)
3...7
1
7...14
2
14...21
3 (presetting)
>21
4
22
Safety valve
Start up
 Set the service switch according to the water hard-
ness in the table.
Note: Observe the following when using system care
Advance 2 RM 111:
Calcification protection: See table
Pump care and black water protection: Set the ser-
vice switch to at least setting 3.
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).
 Appliance without hose drum:
Join the high-pressure hose with trigger gun and
high-pressure connection of the appliance and
tighten until hand-tight (EASY!Lock).
 Device with hose drum:
Join the high pressure hose with trigger gun and
tighten until hand-tight (EASY!Lock).
ATTENTION
Risk of damage. Always unwind high-pressure hose
completely.
Installing the replacement high-pressure
hose (appliances with hose drum)
Figure 6
 Completely roll off the high-pressure hose from the
hose drum.
 Rotate the hose drum until the screwed-on semi
bowl is pointing toward the top. Loosen all three
screws and remove the loosened semi bowl.
Figure 7
 Unlatch the fastening clamp for the high-pressure
hose and pull the hose out.
– 3
EN
Refill fuel
Refill detergent

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