Set working pressure and flow rate, Appliance setting, Settings at the easy press gun (optional) – Karcher HDS 12-14-4 ST Gas User Manual
Page 27: Operating with cold water, Open the water supply, Symbol "engine on, Operating with hot water, M danger, Scalding danger, Caution

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5
Turning the quantity regulation valve in clock-wise direction
will result in higher working pressure and larger volume.
Turning the quantity regulation valve in an anti-clockwise di-
rection will result in lower workign pressure and smaller quan-
tities.
Turning the water quantity regulator to the right gives more
water flow and higher working pressure.
Turning the water quantity regulator to the left gives lesser
water flow and lower working pressure.
Open the water supply.
Symbol "Engine on"
Pull the lever of the hand-spray gun and set the appliance
switch (A) to "1" (engine on).
The indicator lamp for operational readiness (F) shows that
the appliance is in stand-by mode and ready to be operated.
ƽ
Danger
Scalding danger!
Caution
Hot water operations without fuel will cause damage to the fuel
pump. Ensure adequate fuel supply before starting hot water op-
erations.
If required, the burner can also be turned on subsequently.
Symbol "Burner on"
Turn the appliance switch (A) to "Burner on".
Set the desired water temperature on the thermostat (B).
Maximum temperature is 98 °C.
–
The appliance will switch off if the lever of the hand-spray gun
is released during operations.
–
The appliance will automatically start again when you open
the gun again within the stand-by period (2 ... 8 minutes).
–
If the stand-by period is exceeded, the safety time mecha-
nism switches off the pump and the burner. The indicator
lamp Operations Stand-by (F) goes off.
–
To restart the appliance, set the appliance switch to "0" and
then switch on the appliance again. If the appliance is operat-
ed using remote control, the appliance can be restarted by us-
ing the corresponding switch of the remote control device.
–
Vehicle tyres are only cleaned using the flat spray nozzle
((25°) from a minimum spraying distance of 30 cm. The round
spray should never be used to clean tyres.
The following nozzles can be selected for all other tasks:
Use the following nozzles if the pipe length is more than 20 m or
for more than 2 x 10 m high pressure hose NW8:
Set working pressure and flow rate
Appliance setting
Settings at the Easy press gun (optional)
Operating with cold water
R
Operating with hot water
Operations stand-by
Selecting the nozzle
Dirt
Nozzle Spray an-
gle
Part no.
6.415
Pressure
[MPa]
Recoil [N]
HDS 9/16
strong
00060
0°
-649
16
46
medium
25060
25°
-647
light
40060
40°
-648
HDS 12/14
strong
00080
0°
-150
14
55
medium
25080
25°
-152
light
40080
40°
-153
Dirt
Nozzle Spray an-
gle
Part no.
6.415
Pressure
[MPa]
Recoil [N]
HDS 9/16
strong
0075
0°
-419
10
37
medium
2575
25°
-421
light
4075
40°
-422
HDS 12/14
strong
0010
0°
-082
10
46
medium
2510
25°
-252
light
4010
40°
-253
27
EN