21
HDS 995
5.3
Adjusting the Operating Pressure
and Flow Rate
•••••
You can adjust the operating pressure and
flow rate in two different ways:
1. With the pressure and volume control on
the pump head
– Screwing in the adjusting screw increases
the flow rate and operating pressure
– Screwing out the adjusting screw
decreases the flow rate and operating
pressure.
2. With the servo pressure valve on the hand
spray gun
– Turning the control sleeve to the right
increases the operating pressure and water
volume
– Turning the control sleeve to the left
decreases the operating pressure and
water volume.
5.4
Operating with cold water
•
Switch the appliance switch to “
”.
5.5
Operating with hot water
•
Set the thermostat to the desired temperature.
•
We recommend the following cleaning
temperatures:
30 – 50°C
for light dirt
max. 60°C
for dirt which contains protein,
e.g. in the food industry
60 – 90°C
for cleaning vehicles, machines
•
Switch the appliance switch to “
”.
•••••
If you also increase the operating pressure
and flow rate, you also change the water
temperature.
5.6
Operating with steam
•
When operating temperatures are above
98°C, the operating pressure must not exceed
32 bar. Thus, the standard high-pressure
nozzle must be replaced by a steam nozzle
(available as an accessory).
•••••
Adjust the thermostat to the desired
temperature.
•
We recommend the following cleaning
temperatures:
100 – 110°C for depreservation, dirt containing
high levels of grease
up to 140°C
for thawing aggregates, partial
cleaning of facades.
•
Rotate the pressure and volume control on
the pump head to the lowest value.
•••••
When you have finished operating the
appliance with steam, you should adjust the
appliance switch to the “
“ symbol, and run
the appliance for approx. 2 minutes with the
gun open to allow it to cool down.
5. Operation
Summary of Contents for HDS995
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