Durr EcoGun 910 User manual

EcoGun 910
Manual Air Spray Gun Gravity-Feed
MSG00003EN, V06
N36200003V
www.durr.com
Operation manual

Information about the document
This document describes the correct han-
dling of the product.
Read the document prior to every activity.
Prepare the document for the application.
Pass on the product only together with
the complete documentation.
Always follow safety instructions, han-
dling instructions and specifications of
every kind.
Illustrations can deviate from the tech-
nical construction.
Validity range of the document
This document describes the following
product:
N36200003V
EcoGun 910
Hotline and Contact
If you have queries or would like technical
information, please contact your dealer or
sales partner.
05/2018EcoGun 910 - MSG00003EN2/32

TABLE OF CONTENTS
1 Product overview.......................... 4
1.1 Overview................................ 4
1.2 Short description.................... 4
2 Safety............................................. 4
2.1 Presentation of Notes............ 4
2.2 Intended Use.......................... 5
2.3 Residual risks......................... 5
2.4 Staff qualification.................... 6
2.5 Personal protective equip-
ment....................................... 6
3 Transport, scope of supply and
storage........................................... 6
3.1 Scope of delivery................... 6
3.2 Handling of
packaging material................. 7
3.3 Storage.................................. 7
4 Assembly....................................... 7
4.1 Requirements for the
Installation point..................... 7
4.2 Assembly............................... 7
5 Commissioning............................. 8
6 Operation....................................... 9
6.1 Safety recommendations....... 9
6.2 Checks................................. 10
6.3 Selecting air cap.................. 10
6.4 Changing the air cap............ 10
6.5 Alignment of the air cap....... 11
6.6 Guiding the spray gun.......... 12
6.7 Rinsing................................. 12
6.7.1 Safety recommendations.. 12
6.7.2 General notes................... 12
6.7.3 Rinsing spray gun............. 12
7 Cleaning and maintenance........ 13
7.1 Safety recommendations..... 13
7.2 Cleaning............................... 15
7.3 Maintenance........................ 15
7.3.1 Maintenance schedule...... 15
7.3.2 Lubrication........................ 15
8 Faults........................................... 16
8.1 Defects table........................ 16
8.2 Troubleshooting................... 17
8.2.1 Replace needle and
nozzle................................ 17
8.2.2 Replacing valve seal......... 19
8.2.3 Replace needle gland....... 20
9 Disassembly and Disposal........ 21
9.1 Safety recommendations..... 21
9.2 Disassembly......................... 21
9.3 Disposal .............................. 21
10 Technical data............................. 21
10.1 Weight................................ 21
10.2 Connections....................... 22
10.3 Operating conditions.......... 22
10.4 Emissions........................... 22
10.5 Operating values................ 22
10.6 Type plate.......................... 22
10.7 Materials used.................... 23
10.8 Operating and auxiliary
materials............................ 23
10.9 Material specification......... 23
11 Replacement parts and acces-
sories........................................... 24
11.1 Spare part.......................... 24
11.2 Tools.................................. 29
11.3 Accessories........................ 30
11.4 Order.................................. 31
05/2018 EcoGun 910 - MSG00003EN 3/32

1 Product overview
1.1 Overview
Fig. 1: Overview
1 Cup connection
2 Flat jet control
3 Air cap conventional (CF)/LVLP (LF)
4 Self-adjusting needle package
5 Trigger
6 Air control
7 Locknut
8 Stop screw
9 Air connection
1.2 Short description
The spray gun is using compressed air to
coat surfaces. The spray gun is handheld.
The following factors influence the spray jet
and the result:
Alignment of the air cap
Ä 6.5 “Alignment of the air cap”
Material flow Ä 5 “Commissioning”
Air pressure Ä 5 “Commissioning”
Spray width Ä 5 “Commissioning”
The spray gun uses a self-adjusting needle
package. This self-adjusts for the material
related wear of the sealing package.
2 Safety
2.1 Presentation of Notes
The following notes can appear in this
instructions manual.
DANGER!
High risk situation that can lead to serious
injuries or death.
WARNING!
Medium risk situation that can lead to
serious injuries or death.
CAUTION!
Low risk situations that can lead to minor
injuries.
NOTICE!
Situations that can lead to material
damage.
ENVIRONMENT!
Situations that can lead to environmental
damage.
Contains additional information and
recommendations.
Product overview
05/2018EcoGun 910 - MSG00003EN4/32

2.2 Intended Use
The spray gun EcoGun 910 is used exclu-
sively for spraying water-based paint and
conventional solvent-based paint. It is hand
guided and uses compressed air.
The EcoGun 910 spray gun may only be
operated in the approved EX-zones and
within the approved technical data Ä 10
“Technical data”.
The EcoGun 910 spray gun is only intended
for use in application stations.
Misuse
There is a risk of death if not used properly.
Misuses include, e. g.:
Aiming the spray gun at humans or ani-
mals.
Atomization of fluid nitrogen
Combination of the spray gun with com-
ponents that are not approved by
Dürr Systems for operation.
Use of unapproved materials, see safety
data sheets
Making conversions or changes on your
own
Use of spray guns not conforming to the
device category in Ex zones.
EX labeling
II 2G T60 °C X
II - Device group II: all areas except
mining
2G - Device category 2 for gas
T60 °C - Surface temperature, max. 60 °C
X - Specific operating conditions for
safe operation
The following conditions must be observed
for safe operation:
Ground the spray gun.
Only use conductive hoses.
Ensure that static electricity can be dis-
charged.
Use exclusively compressed air quick
couplings for water-based materials,
where it is not necessary to keep dis-
charging static electrical charges.
2.3 Residual risks
Explosion
Sparks, open flames and hot surfaces can
cause explosions in explosive atmospheres.
Serious injuries and death can be the conse-
quence.
Before carrying out any work, ensure a
non-explosive atmosphere.
Do not use sources of ignition and open
light.
Do not smoke.
Ground the product.
Ground the work piece.
Only use conductive lines.
Flammable coating materials and their deter-
gents and cleaning agents can cause a fire
or an explosion.
Ensure that the flashpoint of the fluid is at
least 15 K above the ambient tempera-
ture.
Note explosion group of the fluid.
Follow safety data sheets.
Ensure that forced ventilation and fire
protection equipment are in operation.
Do not use any sources of ignition and
open light.
Do not smoke.
Danger from harmful or irritant sub-
stances
Contact with hazardous liquids or vapors,
can result in serious injury or death.
Ensure that the forced ventilation is
operational.
Follow safety data sheets.
Wear specified protective equipment.
Escaping material
Material escaping under pressure can cause
serious injuries.
Safety
05/2018 EcoGun 910 - MSG00003EN 5/32

Before working on the product:
Disconnect the system with the product
from compressed air and material supply.
Relieve the lines.
Secure the system against reconnection.
Noise
The noise during normal operation may
cause severe hearing damage.
Wear hearing protection.
Do not spend more time then necessary
in the work area.
Hot surfaces
During normal operation the surfaces of
components can get extremely hot. Contact
with it can cause burns.
Before carrying out any work:
Check the temperature.
Do not touch hot surfaces.
Let components cool down.
Wear protective gloves.
2.4 Staff qualification
WARNING!
Inadequate qualification
Wrong estimation of dangers can cause
serious injury or death.
– Only sufficiently qualified persons may
execute all work.
– Some work requires additional qualifi-
cation. Additional qualifications are
marked with a “+”.
This document is intended for qualified per-
sonnel in the industry.
Operator
The operator is trained specifically for the
field of work in which he works.
Furthermore, the operator possesses the fol-
lowing knowledge:
Technical Measures for occupational
safety and health
The operator is responsible for the following
work:
Operate and monitor the system/ product.
Introduce measures in the event of faults.
Clean system/ product.
+ additional qualification explosion pro-
tection
In addition to the knowledge of the various
specialist fields, the mechanic has knowl-
edge of regulations and safety measures
when working in potentially explosive areas.
Dürr Systems offers special product training
for Ä “Hotline and Contact”.
2.5 Personal protective equipment
When working in explosive areas, the pro-
tective clothing, including gloves, must meet
the requirements of DIN EN 1149-5. Foot-
wear must meet the requirements of EN ISO
20344. The insulation resistor must not
exceed 100 MΩ.
Wear the specified personal protective
equipment when working. Provide the fol-
lowing personal protective equipment:
3 Transport, scope of supply
and storage
3.1 Scope of delivery
The scope of supply includes the following
components:
Spray gun
Tool kit Ä 11.2 “Tools”
Inspect delivery on receipt for completeness
and integrity.
Transport, scope of supply and storage
05/2018EcoGun 910 - MSG00003EN6/32

Report defects immediately Ä “Hotline and
Contact”.
3.2 Handling of packaging material
ENVIRONMENT!
Incorrect disposal
Incorrectly disposed packaging material
can damage environment.
– Dispose of material no longer required
in an environment-friendly manner.
–Observe local disposal specifications.
3.3 Storage
Requirements for the warehouse:
Do not store outdoors.
Store in a dry and dust-free place.
Do not expose to aggressive media.
Protect from solar radiation.
Avoid mechanical vibrations.
Temperature: 10°C to 40°C
Relative humidity: 35% to 90%
4 Assembly
4.1 Requirements for the
Installation point.
It must be possible to disconnect the
compressed air supply to the spray gun
and secure it against reconnection.
The compressed air supply must be
adjustable.
Lines, seals and screw connections must
be designed to conform to the spray gun
requirements Ä 10 “Technical data”.
The workplace must have technical venti-
lation.
Working environment and grounding
Flooring of the working areas must be anti-
static, according to DIN EN
50050-1:2014-03, measurement according
to DIN EN 1081:1998-04.
4.2 Assembly
Personnel:
Operator
+ additional qualification explosion pro-
tection
Protective equipment:
Protective workwear
Protective gloves
1. WARNING!
Sources of ignition may cause explo-
sions!
Ensure a non-explosive atmosphere.
Fig. 2: Assembly
2. Screw the feed cup onto the thread of the
cup connection (1).
3. Connect the air hose to the air supply (2).
4. Check air hose for correct connection.
Assembly
05/2018 EcoGun 910 - MSG00003EN 7/32

5 Commissioning
Personnel:
Operator
+ additional qualification explosion pro-
tection
Protective equipment:
Protective gloves
Safety boots
Protective workwear
Eye protection
Respiratory protection device
Use ear protection
Requirements:
Feed cup and air hose have been con-
nected Ä 4.2 “Assembly”.
Fig. 3: Commissioning
1. Rinse the spray gun before filling it with
paint Ä 6.7 “Rinsing”:
use solvent for solvent-based paints
use water for water-based paints
2. Set air control lever (1) into vertical posi-
tion.
Setting the spray pattern
Fig. 4: Setting the material flow
1. Set the material flow.
Loosen locknut (1).
Turn set screw (2) in required direc-
tion.
Right turn: less material
Left turn: more material
Tighten the locknut (1).
Commissioning
05/2018EcoGun 910 - MSG00003EN8/32

Fig. 5: Setting air flow
2. Set air flow.
Set air flow control lever (A) to “min-
imum”.
Increase flow slowly.
You can regulate the air continu-
ously from “minimum” (A) to
“maximum” (C).
3. Set the spray width by turning the flat jet
setting (1).
Right turn: Min. flat jet
Left turn: Max. flat jet
You can turn the flat jet continu-
ously 270° and adjust the spray
from flat to round jet.
Characteristic curves
The characteristic curves show the air flow
depending on the air pressure
Fig. 6: Characteristic curve
CF Conventional air cap
LF Air cap LVLP
6 Operation
6.1 Safety recommendations
WARNING!
Danger of explosion due to chemical
reactions
Material, halogenated hydrocarbon-based
rinsing agent or cleaning agent can chemi-
cally react with aluminum components of
the product. Chemical reactions can
cause explosions. Serious injuries and
death can be the consequence.
– Only use rinsing agents and cleaning
agents that do not contain any halo-
genated hydrocarbons.
NOTICE!
Material damage due to dried material
residues
If material residues dry in the product, that
can harm components.
– Rinse product immediately after each
use.
Operation
05/2018 EcoGun 910 - MSG00003EN 9/32

6.2 Checks
1. Perform the following checks during oper-
ation:
Check air connection for correct seat
and leaks.
Check air car for cleanliness.
Check nozzle for cleanliness.
6.3 Selecting air cap
You can convert the spray gun from a con-
ventional spray gun to a LVLP spray gun by
swapping the air cap.
Conventional air cap (CF)
The conventional air cap is used for decora-
tive surfaces and an application with more
focus on the atomization.
Conventional air cap features:
Mist arm
Fine atomization
Transfer rate > 65 %
Average air consumption 240 l/min
Air cap LVLP (LF)
The air cap LVLP is used for applications
requiring a good transfer rate and spray pat-
tern.
Air cap LVLP
Mist arm
Transfer rate > 75 %
Average air consumption 300 l/min
6.4 Changing the air cap
Personnel:
Operator
+ additional qualification explosion pro-
tection
Protective equipment:
Protective workwear
Protective gloves
Removing the air cap
Fig. 7: Loosen cap nut.
1. Loosen the cap nut (1) by a ¼ turn coun-
terclockwise.
Fig. 8: Removing the air cap
2. Remove the air cap (1).
Assembling the air cap
Fig. 9: Placing the air cap
3. Place the air cap (1).
Operation
05/2018EcoGun 910 - MSG00003EN10/32

Fig. 10: Tightening the cap nut
4. Loosen the cap nut (1) by a ¼ turn clock-
wise.
5. Align the air cap as required Ä 6.5 “Align-
ment of the air cap”.
6.5 Alignment of the air cap
Personnel:
Operator
+ additional qualification explosion pro-
tection
Protective equipment:
Protective workwear
Protective gloves
The position of the air cap determines the
direction of the spray pattern.
Fig. 11: Alignment of the air valve
1. Turn the air cap as required for the
desired spray pattern.
Operation
05/2018 EcoGun 910 - MSG00003EN 11/32

6.6 Guiding the spray gun
Personnel:
Operator
+ additional qualification explosion pro-
tection
Protective equipment:
Protective gloves
Safety boots
Protective workwear
Eye protection
Respiratory protection device
Use ear protection
Fig. 12: Guiding the spray gun
1. Guide the spray gun as follows:
Hold the spray gun at 90 degrees to
the surface to be painted.
Maintain a distance of 15 to max.
25 cm to the surface to be painted.
The distance can vary for effect
coatings.
6.7 Rinsing
6.7.1 Safety recommendations
NOTICE!
Material damage due to unsuitable
rinsing agent
If the rinsing agent reacts chemically with
the components or the material, compo-
nents get damaged.
– Use only the rinsing agents that are
compatible with the components and
the material.
–Refer to safety data sheet of material
manufacturer.
6.7.2 General notes
When rinsing, use fluid to remove inner
soiling from components.
6.7.3 Rinsing spray gun
NOTICE!
Material damage due to unsuitable
rinsing agent
If the rinsing agent reacts chemically with
the components or the material, compo-
nents get damaged.
– Use only the rinsing agents that are
compatible with the components and
the material.
– Refer to safety data sheet of material
manufacturer.
Operation
05/2018EcoGun 910 - MSG00003EN12/32

NOTICE!
Clogged air channels
If the material or rinsing agent reaches
into the air channels, air channels can
clog up. This can result in faulty painting
results.
– Keep spray gun horizontal or directed
downwards during the rinsing process.
Rinse the spray gun in the following cases:
After end of operation
Before every change of material
Prior to cleaning
Prior to dismantling
Before a long time of non-use
Before placing in storage
Rinsing intervals depend on the
material used.
Personnel:
Operator
+ additional qualification explosion pro-
tection
Protective equipment:
Protective workwear
Respiratory protection device
Eye protection
Use ear protection
Safety boots
Protective gloves
1. Ensure proper disposal of the exiting
material and rinsing agent.
2. Rinse the spray gun with an appropriate
rinsing agent until the rinsing agent runs
clean without any material residue.
3. Shut off detergent supply.
4. Drive trigger.
ðAir channels are blown free.
7 Cleaning and maintenance
7.1 Safety recommendations
WARNING!
Danger of fire and explosion
Flammable coating materials and their
detergents and cleaning agents can cause
a fire or an explosion.
– Ensure that the flashpoint of the fluid is
at least 15 K above the ambient tem-
perature.
– Note explosion group of the fluid.
–Follow safety data sheets.
– Ensure that forced ventilation and fire
protection equipment are in operation.
– Do not use sources of ignition and
open light.
– Do not smoke.
WARNING!
Risk of injury from unsuitable replace-
ment parts in explosive areas.
Replacement parts not compliant with the
specifications of the ATEX guidelines can
cause explosions in an explosive atmos-
phere. Serious injuries and death can be
the consequence.
– Use exclusively original replacement
parts.
WARNING!
Danger to health from harmful or irri-
tant substances
Contact with hazardous liquids or vapors,
can result in serious injury or death.
– Ensure that the forced ventilation is
operational.
– Follow safety data sheets.
–Wear specified protective clothing.
Cleaning and maintenance
05/2018 EcoGun 910 - MSG00003EN 13/32

WARNING!
Risk of injury due to escaping material
and compressed air
Escaping compressed material can cause
serious injury.
Before carrying out any work:
– Disconnect the system, in which the
spray gun is installed, from com-
pressed air and material supply.
–Secure the system against reconnec-
tion.
– Relieve the lines.
WARNING!
Danger of explosion due to chemical
reactions
Material, halogenated hydrocarbon-based
rinsing agent or cleaning agent can chemi-
cally react with aluminum components of
the product. Chemical reactions can
cause explosions. Serious injuries and
death can be the consequence.
– Only use rinsing agents and cleaning
agents that do not contain any halo-
genated hydrocarbons.
NOTICE!
Unsuitable cleaning agents
Unsuitable cleaning agents can damage
the product.
– Only use cleaning agents approved by
the material manufacturer.
–Follow safety data sheets.
–Place heavily soiled components in a
cleaning bath.
– Only place those parts in the
cleaning bath, which are suitable for
the cleaning bath.
– Use only electrically conductive
containers.
– Ground the container.
– Do not use ultrasound baths.
Use alcohols (isopropanol, butanol) for
non-flammable coating materials.
Remove dried non-flammable coating
materials using a material manufacturer-
approved organic thinner.
When cleaning with flammable detergent,
do not spray into a closed container. An
explosive gas-air mixture can form inside
closed containers.
NOTICE!
Damage due to unsuitable cleaning
tools
Unsuitable cleaning tools can damage the
product.
– Only use cloths, soft brushes and
paintbrushes.
– Do not use abrasive cleaning tools.
–Do not poke blocked nozzles with met-
allic objects.
– Do not use compressed air for
cleaning.
– Do not use any thinner spray guns.
– Do not use high pressure for cleaning
agents.
Cleaning and maintenance
05/2018EcoGun 910 - MSG00003EN14/32

7.2 Cleaning
Personnel:
Operator
+ additional qualification explosion pro-
tection
Protective equipment:
Protective gloves
Safety boots
Protective workwear
Eye protection
Respiratory protection device
Use ear protection
1. Disconnect the air hose from the spray
gun.
2. Ensure the ambient temperature is at
least 15 K below the flashpoint of the
cleaning agent.
3. Remove material residue with cloth or
soft brushes.
4. Clean the spray gun carefully and dry it
with a soft cloth.
7.3 Maintenance
7.3.1 Maintenance schedule
The maintenance intervals given below are based on experiential values. Adjust maintenance
intervals individually if necessary.
Interval Maintenance work
after each use Cleaning Ä 7.2 “Cleaning”.
weekly Lubricate O-rings Ä 7.3.2 “Lubrication”.
Lubricate needle guide Ä 7.3.2 “Lubrication”.
Lubricate needle seal Ä 7.3.2 “Lubrication”.
Lubricate lever bearing Ä 7.3.2 “Lubrication”.
7.3.2 Lubrication
1. Lubricate the following parts with a sili-
cone-free grease:
O-rings
Needle guide
Needle seal
Lever bearing
Cleaning and maintenance
05/2018 EcoGun 910 - MSG00003EN 15/32

8 Faults
8.1 Defects table
Fault description Cause Remedy
Spray jet wavering Air cap is not tightened.
Nozzle is too far back.
Check position of air cap and clean
if required. Properly aligned the
nozzle protrudes approx. 0.3 mm
from the air cap Ä 6.4 “Changing
the air cap”.
Nozzle not tightened. Tighten the nozzle Ä 8.2.1
“Replace needle and nozzle.”.
Nozzle worn or broken. Replace nozzle Ä 8.2.1 “Replace
needle and nozzle.”.
Self-adjusting needle
package is defect.
Clean parts Ä 7.2 “Cleaning”.
Replace needle seal and O-ring if
required Ä 8.2.3 “Replace needle
gland”.
Spray gun is leaking paint
at the needle seal screw.
Self-adjusting needle
package is defect or worn
out.
Replace needle seal and O-ring
Ä 8.2.3 “Replace needle gland”.
Spray gun is leaking from
nozzle.
Nozzle is broken. Replace nozzle Ä 8.2.1 “Replace
needle and nozzle.”.
Spray gun is leaking. Valve is defect. Replace valve Ä 8.2.2 “Replacing
valve seal”.
Valve seal worn out. Replace valve seal Ä 8.2.2
“Replacing valve seal”.
Valve gland tightened to
fast.
Loosen valve gland by half a turn.
Spray gun is leaking at
the flat jet control.
Flat jet control is worn out. Replace flat jet control.
Quick Clip technology
cannot be used as
required.
Locknut and stop screw
are not tightened together.
Tighten locknut and stop screw
together.
Material has leaked into
Quick Clip closure and
dried out.
Clean Quick Clip closure Ä 7.2
“Cleaning”.
Faults
05/2018EcoGun 910 - MSG00003EN16/32

8.2 Troubleshooting
8.2.1 Replace needle and nozzle.
NOTICE!
Property damage due to improper
replacement of needle and nozzle
Replacing only the needle or only the
nozzle could damage spray gun compo-
nents. This can compromise the tightness
of the spray gun. The spray pattern deteri-
orates.
– Observe order of replacement steps
(needle – nozzle).
–Observe order of assembly steps
(nozzle – needle).
–Always replace nozzle and needle at
the same time.
The integrated Quick Clip technology allows
for removal and installation of the needle
without changing the preset needle stop.
Personnel:
Operator
+ additional qualification explosion pro-
tection
Protective equipment:
Protective gloves
Safety boots
Protective workwear
Eye protection
Respiratory protection device
Use ear protection
Removing the needle
Fig. 13: Replacing the needle
1. NOTICE!
The stop screw is spring pretensioned.
When you loosen the stop screw it
might fall off.
Hold onto stop screw (6) while removing
it.
2. Counter the locknut (5) on the clip (4).
3. Press the stop screw (6) on the face by
about 1 mm into the spray gun.
4. Turn stop screw (6) ¼ turn counter clock-
wise.
ðThe spring on the needle (2) pushes
the stop screw (6) out.
5. Pull out the stop screw (6).
6. Remove the compression spring (3).
7. Pull back the trigger (1).
Faults
05/2018 EcoGun 910 - MSG00003EN 17/32

8. Pull out the needle (2) towards the back.
Dismantling the nozzle
Fig. 14: Dismantling the nozzle
9. Loosen the cap nut (2).
10. Pull off air cap (1).
11. Loosen nozzle (3) using a hexagonal
box wrench (13 mm) and remove it.
Installing the nozzle
12. Screw-in new nozzle (3) and tighten it.
Tightening torque: 18–20 Nm
13. Assemble and align the air cap Ä 6.4
“Changing the air cap”.
Inserting the needle
Fig. 15: Inserting the needle
14. Insert the needle (1).
15. Position compression spring (2).
16. Press stop screw (5) against the com-
pression spring into the body of the
spray gun. One of the nibs (6) of the clip
(3) must be in the 11 o’clock position.
17. Turn stop screw (5) clockwise until fas-
tened.
ðStop screw (5) is pushed back into its
initial position.
18. Set the material flow Ä 5 “Commis-
sioning”.
Faults
05/2018EcoGun 910 - MSG00003EN18/32

8.2.2 Replacing valve seal
Personnel:
Operator
+ additional qualification explosion pro-
tection
Protective equipment:
Protective workwear
Protective gloves
Fig. 16: Removing the lever screw and lever
axle
1. Loosen and remove the lever screw (1).
2. Remove the lever axle (2).
Fig. 17: Replacing the valve gland
3. Pull off the trigger (1).
4. Unscrew the valve gland (2) to the front.
5. Loosen the sealing screw (7).
6. Pull out the compression spring (6)
towards the back.
7. Pull out valve pin (4) and seal (5) towards
the back.
8. Pull out the valve gland (3) to the front.
9. Insert a new valve gland (3).
10. Insert the valve pin (4) and seal (5).
11. Insert the Compression spring (6).
12. Tighten locking screw (7).
13. Screw-in the valve gland (2).
14. Push the trigger (1) over the spray gun.
Faults
05/2018 EcoGun 910 - MSG00003EN 19/32

Fig. 18: Installing the lever screw and lever
axle
15. Insert lever axle (2).
16. Tighten the lever screw (1).
8.2.3 Replace needle gland
Personnel:
Operator
+ additional qualification explosion pro-
tection
Protective equipment:
Protective workwear
Protective gloves
1. Disassemble needle and nozzle Ä 8.2.1
“Replace needle and nozzle.”.
Fig. 19: Removing the needle gland
2. CAUTION!
The compression spring is pre-ten-
sioned. Risk of injury!
Remove the needle gland (1) carefully
and relieve the compression spring
slowly.
3. Remove the compression spring.
4. Remove the pressure disc.
Fig. 20: Removing the needle guide
5. Unscrew the needle guide (1) to the front.
6. Remove the O-rings (2) and seals (3).
7. Install new O-rings (2) and seals (3).
Faults
05/2018EcoGun 910 - MSG00003EN20/32