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English

17

Before starting work with the product using high water 

pressure, perform the following checks:

1. Check the bypass line on the water outlet. 

Water must be expelled from the bypass line when the 

product is not actuated.

2. Actuate the product under high pressure several times 

in a safe area and check the valves on the bypass and 

the leakage holes for leaks.

3. Check that the trigger and the trigger catch are function-

ing smoothly and freely. 

The trigger must return automatically to its original posi-

tion after actuation and engage into the trigger. It should 

only be possible to actuate the trigger when the trigger 

catch is actuated once again.

4. With the help of the supervisor, check whether the 

planned working pressure of the high pressure water jet 

machine is reached.

Note

Do not use the product if the checks are unsuccessful or if 
an abnormality or unexpected situation is determined. In 
this case, have a safety inspection conducted (see chapter 
9.4 Service)
.

6.4

Starting up the product

The product is correctly installed and connected to the 

high-pressure water jet machine.

The high-pressure water jet machine is switched on.

Product checks in accordance with Chapter 6.2 Before 

switching on the high pressure water jet machine and 

Chapter 6.3 Before starting spraying are successful.

Note

Depressurised jet liquid flows out of the bypass line when 
the high-pressure water jet machine is switched on and the 
product is not actuated.

1. Actuate the trigger safety catch. Do this by pressing the 

trigger safety catch down.

2. Actuate the trigger.

Actuating the trigger closes the bypass line and causes the 

spray fluid to be emitted under pressure out of the nozzle 

of the water tool.

Note

Non-corrosion resistant materials can be corroded by the 
emitted high-pressure water jet.

7

Shutting down

7.1

Safety instructions

DANGER

Risk of injury from the high-pressure water jet

A high-pressure water jet can escape from a pressurised 
high-pressure water jet machine.
Ensure that all components of the high-pressure water jet 
machine are depressurised after shutting down the prod-
uct.

CAUTION

Hot surfaces

Touching the surface of the product can cause burns or 
scalding.
Wear personal protective equipment.
Do not touch any elements of the product after using it with 
hot water.
Allow the product to cool down after hot water operation or 
flush the spray device using cold water operation.

7.2

Shutting down the product

Note

Depressurised jet liquid flows out of the bypass line when 
the high-pressure water jet machine is switched on and the 
product is not actuated. 

1. Release the trigger. The trigger automatically locks onto 

the trigger catch.

2. Check that the trigger catch is correctly engaged by ac-

tuating the trigger.

3. Switch off the high-pressure water jet machine and se-

cure it against being switched on again.

4. The high-pressure system must be depressurised. To 

do this, completely discharge all residual pressure.

5. Disconnect all supply lines from the product in the re-

verse order (see Chapter 5 Installation).

8

Storage

The following applies to this product and, unless specified 

otherwise, to all other water tools:

Clean after finishing work.

Store in a frost-protected place.

For long-term storage, blow out the product with com-

pressed air and conserve using a suitable preservative.

9

Maintenance and servicing

9.1

Safety instructions

DANGER

Risk of injury from the high-pressure water jet

A high-pressure water jet can escape from a pressurised 
high-pressure water jet machine.
Switch off the high-pressure water jet machine and secure 
it against being switched on again before performing any 
work on the product.
Ensure that all components of the high-pressure water jet 
machine are depressurised.

WARNING

Improper servicing

The use of third-party parts can impair the functionality and 
safety of the high-pressure water jet machine.
Only use original spare parts from WOMA GmbH. The 
WOMA product range includes appropriate spare parts 
specially matched to the service life of the product. Further 
information is available from your WOMA sales partner.
The use of third-party spare parts is prohibited. Third-party 
spare parts often do not conform to the specifications and 
requirements. Third-party spare parts present an in-
creased risk to the personnel and product. Functionality 
and safety can be impaired.

9.2

Care and cleaning

Note

Observe the manufacturer's safety data sheets when using 
cleaning agents.

If necessary, perform general cleaning of the product.

9.3

Inspection

The operator performs the daily inspection and visual in-

spection of the product.

9.3.1 Daily inspection

Perform daily product checks (see Chapter 6.2 Before 

switching on the high pressure water jet machine and 

Chapter 6.3 Before starting spraying).

Summary of Contents for WOMA HP-DG

Page 1: ...HP DG 9 920 778 0 English 2...

Page 2: ...17 16 15 10 13 1 2 3 4 5 6 7 8 9 12 14 18 19 20 18 21 22 11 A...

Page 3: ...stration conventions 1 5 1 Acton steps in the specified sequence Action steps to be executed are shown as a numbered or alphabetic list The sequence of the steps must be main tained Example 1 Action s...

Page 4: ...hazards that may occur and be capable of preventing these hazards through appropriate protective measures The operating personnel must be able to recognize any hazards in time and be able to implement...

Page 5: ...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 t...

Page 6: ...tc vari ous surfaces and materials such as steel concrete etc This can be achieved using various different water tools from WOMA GmbH This product is only to be used with water conforming to the WOMA...

Page 7: ...e high pressure water jet machine to the se cured spray device using a suitable high pressure hose 6 Startup 6 1 Safety instructions DANGER Risk of injury from the high pressure water jet Contact with...

Page 8: ...ith hot water Allow the product to cool down after hot water operation or flush the spray device using cold water operation 7 2 Shutting down the product Note Depressurised jet liquid flows out of the...

Page 9: ...oat the thread of the bypass screw with thread instal lation paste before installation see Chapter 12 2 Con sumables 8 Coat the fitting surfaces of the cartridge with anti seize installation see Chapt...

Page 10: ...length 9 918 623 0 3 Handle 6 025 300 0 4 Spray lance 1500 bar 300 7000 mm in length See WOMA product range Spray lance 3000 bar 300 6000 mm in length See WOMA product range 5 Splash guard 9 871 040 0...

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