Krautzberger HS 25 Series User manual

HS-25, HS-25 HV1, HS-25 HV3
Original operating instructions
T-Dok-009-GB-Rev.0
GB hand held spray gun HS-25
Operating instructions

[email protected], www.krautzberger.com GB–2
Thank you for selecting a Krautzberger product.
This product has been manufactured according to the latest manufacturing procedures and with
extensive quality assurance measures. We promise you a product of the highest quality
If you have questions, desires or suggestions, please contact us; we are always glad to assist you.
Information about the topic of Ex protection
Many of our competitors have been identifying their products with the Ex symbol for a while now.
Krautzberger does not do this.
We construct and manufacture our products according the currently-valid guidelines.
The required analysis of ignition sources as well as previous experience with the assessment of
the applicability of the products in the Ex area showed that the product described in these
operating instructions provides no potential source of ignition with the exception of the electrostatic
charge.
Taking into account the potential equalisation (due to proper earthing), use in the Ex area is admis-
sible according to the currently-valid guidelines.

Table of contents
1 Safety................................................................................................................................... 4
1.1 DESIGNATED USE..................................................................................................... 5
1.2 Personnel requirements............................................................................................... 5
1.3 Personal protective equipment.................................................................................... 5
1.4 Disposal....................................................................................................................... 5
2 Technical data..................................................................................................................... 6
3 Structure and function....................................................................................................... 7
3.1 Overview...................................................................................................................... 7
3.2 FUNCTIONAL DESCRIPTION.................................................................................... 7
3.3 Special equipment....................................................................................................... 8
4 Operation............................................................................................................................. 9
4.1 Connecting the hand held spray gun........................................................................... 9
4.2 Commissioning.......................................................................................................... 10
4.3 Adjusting the spray pattern........................................................................................ 10
4.4 Interrupting operation................................................................................................. 11
5 Maintenance...................................................................................................................... 12
5.1 Maintenance schedule............................................................................................... 12
5.2 Maintenance work...................................................................................................... 12
6 Faults................................................................................................................................. 21
7 Spare parts/accessories.................................................................................................. 23
7.1 Spare parts................................................................................................................ 23
7.2 Accessories............................................................................................................... 25
8 EU declaration of conformity.......................................................................................... 27
hand held spray gun HS-25 ENGLISH
HS-25, HS-25 HV1, HS-25 HV3 GB–3

1 Safety
Safety instructions
DANGER!
This combination of symbol and signal word indicates an immediately dangerous situation
which causes death or severe injuries if it is not avoided.
WARNING!
This combination of symbol and signal word indicates a possibly dangerous situation which
can cause death or severe injuries if it is not avoided.
CAUTION!
This combination of symbol and signal word indicates a possibly dangerous situation which
can cause slight injuries if it is not avoided.
NOTICE!
This combination of symbol and signal word indicates a possibly dangerous situation which
can cause property and environmental damage if it is not avoided.
This symbol highlights useful tips and recommendations as well as information for efficient
and fault-free operation.
Symbol Explanation
Indicates step-by-step instructions.
ðIndicates a condition or an automatic sequence as the result of an action.
Indicates references to sections of these instructions and other applicable
documents.
Indicates enumerations and list entries without a specified sequence.
Operating instructions T-Dok-009-GB-Rev.0
[email protected], www.krautzberger.com GB–4

1.1 DESIGNATED USE
The hand held spray gun manually coats surfaces with liquid and low-viscosity spray fluids. Typ-
ical spray fluids are paints, colours, adhesives, glazes, enamels, release agents, etc.
Designated use also includes observance of all details in these instructions.
Any use beyond the designated use or any other use counts as misuse.
WARNING!
Danger due to misuse!
Misuse of the hand held spray gun can cause dangerous situations.
–Always observe the valid safety, accident prevention, occupational safety and environ-
mental protection regulations valid for the area of application of the hand held spray gun.
–Only use sharply abrasive, chemically-aggressive, very hot or very cold spray fluids in
consultation with Krautzberger GmbH.
–Only use the manufacturer's original spare parts.
–Only operate the hand held spray gun while adhering the values specified in the
Ä Chapter 2 „Technical data“ on page 6.
–Heed the spray fluid manufacturer's safety datasheets.
Claims of any type due to damage based on misuse are excluded.
1.2 Personnel requirements
Ensure the use of the device by skilled employees! Only skilled employees can independently
detect and avoid possible dangers during use based on their professional training, experience and
knowledge of the relevant regulations.
1.3 Personal protective equipment
When using the hand held spray gun, always wear breathing, eye and ear protection!
Only wear approved protective gloves during cleaning work with solvents!
1.4 Disposal
When the useful life of the device has been exhausted, dispose of it in commercial waste. In order
to prevent damage to the environment, dispose of any remains of spray fluid properly separately
from the device.
hand held spray gun HS-25 ENGLISH
HS-25, HS-25 HV1, HS-25 HV3 GB–5

2 Technical data
Fig. 1: Dimensions
Data Value Unit
Weight (without fluid container) 0,57 kg
Working pressure spray fluid max. 6 bar
Working pressure spray fluid (HV1 and HV3) max. 4 bar
Working pressure atomisation air max. 12 bar
Working atomisation air (HV1 and HV3) max. 4 bar
Spray fluid temperature max. 43 °C
Air temperature max. 43 °C
Fluid connection* W 17.5 x 19 AG
Suction connection* Hose NW 8/9
Atomisation air connection* Nozzle NW 8/9 or
G1/4 AG
Continuous sound pressure level (depends on nozzle) 73 to 96 dB(A)
Transfer efficiency (AWG) 87 %
* The details correspond to the standard model and can vary depending on configuration.
Operating instructions T-Dok-009-GB-Rev.0
[email protected], www.krautzberger.com GB–6

3 Structure and function
3.1 Overview
Fig. 2: Overview
1 Air nozzle
2 Fluid connection, flow
3 Main element
4 air regulator
5 Connector with needle stroke adjusting
screw
6 Jet regulator
7 Clamping nut
8 Draw-off lever, short
9 plastic grip
10 Hose nozzle, compressed air connection
11 Fluid connection, suction
12 Draw-off lever, long
3.2 FUNCTIONAL DESCRIPTION
Hand held spray guns are used for the
ncoating/marking of surfaces
ndosing of liquids
ndetermination of adhesive or marking points
The fluid medium is fed into the hand held spray gun via
npumps, pressure or pressure-drop containers
nscrewed-on fluid or suction container
hand held spray gun HS-25 ENGLISH
HS-25, HS-25 HV1, HS-25 HV3 GB–7

If small quantities of a fluid are processed, the use of fluid or suction containers is recom-
mended. Suction containers should only be used with low-viscosity fluids. For suction opera-
tion, the air consumption of the hand held spray gun is higher since the fluid is conveyed
against the force of gravity.
The hand held spray gun HS-25 can, depending on the customer configuration, be fitted with the
HV1 or HV3 nozzle system. Both systems are HVLP systems (hvlp = high volume, low pressure)
for low-fog coating
The spray fluid is atomised using compressed air. The geometry of the spray jet and the sprayed
quantity of the spray fluid can be adjusted with the following measures:
nSelection of the air and fluid nozzle
nChanging the atomisation air pressure on the external regulator
nChanging of the spray fluid pressure
nAdjustment of the needle stroke on the regulator of the hand held spray gun
nAdjustment of the flat jet regulator on the hand held spray gun.
3.3 Special equipment
Some special equipment and accessories are available for the hand held spray gun HS-25. See
also Ä Chapter 7 „Spare parts/accessories“ on page 23.
Operating instructions T-Dok-009-GB-Rev.0
[email protected], www.krautzberger.com GB–8

4 Operation
WARNING!
Danger of injury due to improper mounting and commissioning/operation!
–Only carry out the mounting and commissioning according to the steps described in
these operating instructions.
–Never direct the compressed air towards people.
–Check the fluid and compressed air hose lines before each use for damage and tight fit.
–Make sure that the hose lines used fulfil the requirements with respect to pressure,
chemical and mechanical loads.
–Make sure that the connected compressed air is oil-free and free of solid matter.
–Observe the details of the spray fluid manufacturer on the safety datasheet.
4.1 Connecting the hand held spray gun
Fig. 3: Connections
1. Connect the compressed air line to the hose nozzle (Fig. 3/3).
2. Establish the fluid supply at the fluid connection (Fig. 3/1 or 2).
hand held spray gun HS-25 ENGLISH
HS-25, HS-25 HV1, HS-25 HV3 GB–9

4.2 Commissioning
Observe the operating instructions for the components in question.
1. Switch on the compressed air supply.
2. Where applicable, switch on pump or pressure container for spray fluid.
3. Point hand held spray gun at a test surface.
Fig. 4: Draw-off lever
4. Begin spraying process by pulling the draw-off lever (Fig. 4/1).
5. Adjust the spray pattern (
Ä Chapter 4.3 „Adjusting the spray pattern“ on page 10).
6. End spraying process by releasing the draw-off lever (Fig. 4/1).
4.3 Adjusting the spray pattern
There are four different nozzle types:
Nozzle type Description Remark
Round jet cone-shaped stream in front of the
nozzle
Flat jet width-adjustable jet for flat-shaped
application
with closed flat jet regulator, a round
jet arises
Rotary jet
Full-cone rotary jet
due to rotary impulse strongly-dis-
torted spray stream
suitable for difficult workpiece geo-
metries (angles, etc.)
Operating instructions T-Dok-009-GB-Rev.0
[email protected], www.krautzberger.com GB–10