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14 English
2.6 Water connection
몇 WARNING
Contact with high-pressure water jets escaping from pres-
surised hoses and screw connections can cause irreversi-
ble injuries or even death.
Use only hoses and accessories approved for the max-
imum operating pressure of the high-pressure water jet
machine.
Check the screw connections of all connection hoses for
leaks before starting the device.
Do not use a hose connection with a damaged thread.
2.7 Usage
2.7.1 Work area
DANGER
Contact with high-pressure water jets can cause irreversi-
ble injuries or even death.
Do not direct high-pressure water jets towards humans,
animals or electrical equipment.
Never work alone! For safety reasons, a second person
must always be present when using the safety device,
who is able to shut down the high-pressure water jet ma-
chine in the case of an emergency and obtain help if
necessary.
No persons except the operating personnel may be
present within a 10 m radius of the spray device when
spraying.
The spray device work area and the general work area
must be fully visible.
Secure the spray device work area in a clearly visible
manner against unauthorised access while spraying.
Erect warning signs and cordon off the area.
Depending on the surface characteristics, the ground
can become slippery due to the spray mist or emitted
water. Maintain a solid and safe footing when working
with a water jet.
Spray mist impairs direct visibility. Take the local condi-
tions into account and watch out for other persons when
working with a water jet.
The operating personnel must be secured against fall-
ing when spraying on scaffolding.
The operating personnel must be secured by a retaining
device (e.g. straps, ropes) when spraying in enclosed
spaces (e.g. tanks or autoclaves). Ensure an additional
supply of sufficient fresh air.
Adhere to the respective safety instructions when using
the spray device in hazard zones (e.g. service stations).
The spray device may not be operated in explosive at-
mospheres.
2.7.2 General usage information
DANGER
Incorrectly used high-pressure water jets can be danger-
ous and contact with high-pressure water jets can cause ir-
reversible injuries or even death.
Do not use spray equipment shorter than 750 mm
(measured from trigger to nozzle). A danger of injury ex-
ists when working with short spray lances because your
hand may come into contact with the high-pressure jet.
Use the device only in the specified correct manner (see
chapter 3 Intended use).
Check the product and work equipment prior to each
use to make sure it is safe and working correctly (see
chapter 6 Startup). Do not use a damaged spray device.
Never lock the trigger of the product.
The impact of the high-pressure water jet can release
particles or larger elements from the surface being
cleaned. These are strongly accelerated and can injure
the operating personnel. Wear the prescribed personal
protective equipment.
Do not use the high-pressure water jet machine and the
spray device when you are tired, medically impaired or
under the influence of alcohol or medication.
Never use liquids containing solvents or undiluted acids
and solvents. This includes e.g. petrol, paint thinner or
heating oil. The spray mist is highly flammable, explo-
sive and poisonous.
Materials containing asbestos or other substances
harmful to health may not be sprayed.
2.7.3 Temperature
몇 WARNING
Escaping high-pressure water can cause burns or scald-
ing.
Wear personal protective equipment.
Do not touch any hot surfaces of the spray device when
using hot water.
Install a handle for protection (see the WOMA product
range).
Allow the spray device to cool down after hot water op-
eration or flush the spray device using cold water oper-
ation.
The fluid can heat up in cold water operation due to de-
pressurisation of the high-pressure water. Do not touch
any hot surfaces of the spray device.
2.7.4 Noise
몇 WARNING
The high nozzle outlet speed of the high-pressure water jet
results in a high noise level that can cause discomfort or
hearing damage (e.g. tinnitus) to persons in the immediate
vicinity. A continuously high noise level can result in deaf-
ness.
Wear the prescribed personal protective equipment.
High noise levels can impair vocal communication and
impair or prevent your ability to perceive acoustic warn-
ing signals. Never work alone. A second person must be
present outside the work area.
2.7.5 Recoil forces
몇 WARNING
The recoil forces occurring when working with a water jet
present a risk of falling.
Maintain a solid and safe footing. Do not work on lad-
ders.
Hold the spray device by the specified handles with both
hands.
Select the nozzle diameter for manually performed
spray work so that the longitudinal recoil force does not
exceed 250 N. The spray device must be equipped with
a body support (see the WOMA product range) if the re-
coil force exceeds 150 N.
When simultaneously operating multiple spray devices
from a single high-pressure water jet machine, be aware
of the changing recoil forces. The recoil forces occurring
at the other spray devices must not change by more
than 15% when opening or closing a spray device.
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