Operation With Detergent; Interrupting Operation - Kärcher HD 9/21 G Manual Del Usuario

Starting the machine
 Open the water supply.
 Start the motor with the trigger gun
open according to the operating instruc-
tions of the motor manufacturer.
Note:
The spray lance can be removed to facili-
tate the start-up process.
 Allow motor to warm up for 1 minute.
Set working pressure and flow rate
HD 9/21 G
 Set the working pressure and quantity
by turning the pressure/ quantity regula-
tion mechanism at the pump unit.
HD 9/23 G
 Set (+/-) the working pressure and
quantity by turning the pressure/ quan-
tity regulation mechanism at the hand
spray gun.
DANGER
When adjusting the pressure/quantity regu-
lation, make sure that the screw connection
of the spray lance does not become loose.
Replace the nozzle
DANGER
Switch the appliance off prior to replacing
nozzel and activate hand spray gun until
device is pressureless.
 Unscrew nozzle screws and remove the
nozzle.
 Put on a new nozzle.
 Screw on the nozzle screws and tighten
them by hand.

Operation with detergent

WARNING
Unsuitable detergents can cause damage
to the appliance and to the object to be
cleaned. Use only those detergents that
have been approved by Kärcher. Observe
the dosage and other instructions provided
with these detergents. For considerate
treatment of the environment use detergent
economically.
Follow the safety instructions for using de-
tergents.
Kärcher detergents ensure smooth func-
tioning. Please consult us or ask for our cat-
alogue or our detergent information sheets.
 Suspend end of suction hose in a con-
tainer filled with detergent.
 Replace the high-pressure nozzle with
the low-pressure nozzle.
 Set dosing value for detergent to the
desired concentration.
Set dosing valve for detergent to the de-
sired concentration (0%–6%).
Recommended cleaning method
– Loosen the dirt:
Spray detergent economically and let it
work for 1...5 minutes but do not let it
dry up.
– Remove the dirt:
Spray off loosened dirt with the high
pressure jet.
After operation with detergent
 Set dosing value for detergent to "0".
 Open the trigger gun and rinse the de-
vice with the motor running for at least 1
minute.

Interrupting operation

 Release the lever on the trigger gun.
Note: When the lever of the hand spray
gun is released, the engine continues to run
at zero speed.
 In case of extended interruptions (sev-
eral minutes), switch off the engine.
 Activate trigger gun until device is pres-
sure-less.
 Secure the hand spray gun using the
safety catch so that it doesn't open ac-
cidentally.
Turn off the appliance
After operating the water using saline water
(sea water), open the hand spray gun and
rinse the appliance for at least 2 - 3 minutes
using tap water.
 Close the hand spray gun.
 Turn the starter to "0/OFF".
 Close fuel cock.
 Shut off water supply.
EN – 6 21