Samoa Larius 2 Operating instructions
www.larius.com
ED. 14 - 11/2021
Manuale Cod. 150145
LARIUS 2
PLUS
LARIUS 2
PAINTING
LARIUS 2
PAINTING
Pneumatic double
diaphragm pump
OPERATING AND MAINTENANCE MANUAL
EN
Due to a constant product improvement programme, the factory reserves the right to modify
technical details mentioned in this manual without prior notice.
This manual is to be considered as an English language translation of the original manual in Italian.
The manufacturer shall bear no responsibility for any damages or inconveniences that may arise due to
the incorrect translation of the instructions contained within the original manual in Italian.
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A
C
D
B
E
H
G
F
I
M
N
J
K
L
O
P
Q
R
S
T
U
V
W
X
WE ADVISE THE USE OF THIS EQUIPMENT ONLY BY PROFESSIONAL OPERATORS.
ONLY USE THIS MACHINE FOR USAGE SPECIFICALLY MENTIONED IN THIS MANUAL.
Thank you for choosing a LARIUS S.R.L. product.
As well as the product purchased, you will receive a range of support services
enabling you to achieve the results desired, quickly and professionally.
LARIUS 2 PAINTING
Pneumatic double diaphragm pump
WARNINGS ..................................................................................................................................................................4
WORKING PRINCIPLE .................................................................................................................................................5
TECHNICAL DATA ........................................................................................................................................................5
DESCRIPTION OF THE EQUIPMENT ..........................................................................................................................6
DESCRIPTION OF THE EQUIPMENT PLUS VERSION................................................................................................8
TRANSPORT AND UNPACKING................................................................................................................................10
SAFETY RULES..........................................................................................................................................................10
SETTING-UP ..............................................................................................................................................................11
OPERATION................................................................................................................................................................13
CLEANING AFTER THE SPRAY PAINTING OR IN CASE OF PRODUCT CHANGE ..................................................14
ROUTINE MAINTENANCE .........................................................................................................................................15
TROUBLESHOOTING ................................................................................................................................................16
L2 SPARE PARTES LIST IN STAINLESS ....................................................................................................................18
L2 SPARE PARTES LIST IN ALLUMINIUM.................................................................................................................20
KIT L2 SPARE PARTES LIST IN ALLUMINIUM/STAINLESS ......................................................................................22
TANK...........................................................................................................................................................................24
COMPLETE TROLLEY................................................................................................................................................25
AIR CONTROL GROUP WITH TROLLEY ...................................................................................................................26
AIR CONTROL GROUP WITHOUT TROLLEY............................................................................................................27
AIR CONTROL GROUP LARIUS 2 PLUS...................................................................................................................29
FILTER WITH CIRCULATION......................................................................................................................................30
SUCTION LINE FILTER...............................................................................................................................................31
SUCTION TANK MODEL ............................................................................................................................................32
WALL-MOUNTED MODEL .........................................................................................................................................33
ATEX ...........................................................................................................................................................................34
DECLARATION OF CONFORMITY.............................................................................................................................36
INDEX
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The table below provides the meaning of the symbols used in this manual in relation to using, earthing,
operating, maintaining, and repairing of this equipment.
WARNINGS
• Read this operator’s manual carefully before using the equipment.
• An improper use of this machine can cause injuries to people or things.
• Do not use this machine when under the inuence of drugs or alcohol.
• Do not modify the equipment under any circumstances.
• Use products and solvents that are compatible with the various parts of the equipment, and read the manufacturer’s warnings carefully.
• See the Technical Details for the equipment given in the Manual.
• Check the equipment for worn parts once a day. If any worn parts are found, replace them using ONLY original spare parts.
• Keep children and animals away from work area.
• Comply with all safety standards.
• It indicates an accident risk or serious damage to equipment if this warning is not followed.
FIRE AND EXPLOSION HAZARD
• Solvent and paint fumes in work area can ignite or explode.
• To help prevent fire and explosion:
- Use equipment ONLY in well ventilated area.
- Eliminate all ignition sources, such as pilot lights, cigarettes and plastic drop cloths (potential static arc).
- Ground equipment and conductive objects.
- Use only grounded hoses.
- Do not use trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or uids containing such solvents in
pressurized aluminium equipment. Such use can cause serious chemical reaction and equipment rupture, and result in death,
serious injury, and property damage.
- Do not form connections or switch light switches on or off if the air contains inammable fumes.
• If electrical shocks or discharges are encountered the operation being carried out using the equipment must be stopped immediately.
• Keep a re extinguisher at hand in the immediate vicinity of the work area.
• It indicates wound and nger squashing risk due to movable parts in the equipment.
• Tenersi lontano dalle parti in movimento.
• Do not use the equipment without the proper protection.
• Before any inspection or maintenance of the equipment, carry out the decompression procedure explained in this manual, and prevent
any risk of the equipment starting unexpectedly.
• Report any risk of chemical reaction or explosion if this warning has not been given.
• (IF PROVIDED) There is a risk of injury or serious lesion related to contact with the jet from the spray gun. If this should occur, IMME-
DIATELY contact a doctor, indicating the type of product injected.
• (IF PROVIDED) Do not spray before the guard has been placed over the nozzle and the trigger on the spray gun.
• (IF PROVIDED) Do not put your ngers in the spray gun nozzle.
• Once work has been completed, before carrying out any maintenance, complete the decompression procedure.
• It indicates important recommendations about disposal and recycling process of products in accordance with the environmental
regulations.
• Mark any clamps attached to earth cables.
• Use ONLY 3-wire extension cords and grounded electrical outlets.
• Before starting work make sure that the electrical system is grounded and that it complies with safety standards.
• High-pressure uid from gun, hose leaks, or ruptured components will pierce skin.
• To help prevent injection, always:
- (IF PROVIDED) Engage trigger lock when not spraying.
- (IF PROVIDED) Do not put your hand over the spray tip. Do not stop or deect leaks with your hand, body or other.
- (IF PROVIDED) Do not point gun at anyone or at any part of the body.
- (IF PROVIDED) Never spray without tip guard.
- Do pressure relief if you stop spraying or being servicing sprayer and before any maintenance operations.
- Do not use components rated less than sprayer Maximum Working Pressure.
- Never allow children to use this unit
- (IF PROVIDED) Brace yourself; gun may recoil when triggered.
If high pressure fluid pierces your skin, the injury might look like “just a cut”, but it is a serious wound!
Get immediate medical attention.
• It is obligatory to wear suitable clothing as gloves, goggles and face shield.
• Wear clothing that complies with the safety standards in force in the country in which the equipment is used.
• Do not wear bracelets, earrings, rings, chains, or anything else that may hinder the operator’s work.
• Do not wear clothing with wide sleeves, scarves, ties, or any other piece of clothing that could get tangled up in moving parts of the
equipment during the work, inspection, or maintenance cycles.
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ED. 14 - 11/2021 - Cod. 150145
WORKING PRINCIPLE
The LARIUS 2 unit is defined as being a “diaphragm pump”
that is used for low pressure painting. This type of equipment
can be used to paint using a number of spray guns.
The feed passes through a low pressure flow regulator, fitted
with a pressure gauge.
The LARIUS 2 can also be used as a transfer pump.
TECHNICAL DATA
RATIO 1:1
A
B
LARIUS 2
MAX WORKING PRESSURE (product)
MAX SUPPLY PRESSURE (air)
INFEED AIR PRESSURE
INPUT AIR SUPPLY PRESSURE
PUMP AIR CONSUMPTION
MAX CARRYING CAPACITY
WEIGHT
ADJUSTMENT FLOW PRESSURE
LEVEL SOUND PRESSURE
LENGTH
WIDTH
HEIGHT
7 bar
7 bar
7 bar
1/4" GAS
120 l/min
21 l/min
22 Kg
manual
≤ 70dB(A)
(A) 500 mm
(B) 600 mm
(C) 1000 mm
7 bar
7 bar
7 bar
1/4" GAS
120 l/min
21 l/min
24 Kg
pneumatic
≤ 70dB(A)
(A) 500 mm
(B) 600 mm
(C) 1060 mm
LARIUS 2 PLUS
C
A
B
C
A
B
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ED. 14 - 11/2021 - Cod. 150145
DESCRIPTION OF THE EQUIPMENT
C
POS.
1
2
3
4
POS.
5
6
7
8
Flow regulator
Product output
Product recirculation tap
Product recirculation hose
Trolley
Flow regulator manometer
Gravity feed tank with 6 liters capacity
Product filter
Descrizione Descrizione
1
8
7
4
2
5
6
3
4
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POS.
9
10
11
12
13
POS.
14
15
16
17
18
Air distribution tap
Atomising air outlet
Atomizing air pressure manometer
Atomizing air pressure setting knob
Product inlet
Description
Product pressure setting knob
Air pressure gauge for pump supply
Pilot valve
Spray gun
Pump feeding air inlet
Description
17
15
13
10
11
12
18
14
9
16
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ED. 14 - 11/2021 - Cod. 150145
POS.
1
2
3
4
5
POS.
6
7
8
9
10
Product output
Product recirculation tap
Product recirculation hose
Pump air input
Pump air output
DESCRIPTION OF THE EQUIPMENT VERSION PLUS
Trolley
Manometer pressure product flow
Gravity feed tank with 6 liters capacity
Product filter
Flow regulator
Description Description
D
3
3
5
1
2
10
4
6
7
8
9
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ED. 14 - 11/2021 - Cod. 150145
POS.
11
12
13
14
POS.
15
16
17
18
Atomizing pressure manometer
Atomizing pressure setting knob
Pump speed pressure manometer
Pump speed pressure setting knob
Description
Manometer product flow pressure
Product flow pressure setting knob
Product input
Pilot valve
Description
16 14 12
17
18
1311 15
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ED. 14 - 11/2021 - Cod. 150145
TRANSPORT AND
UNPACKING
symbols and markings on the outside of the packing.
be used is large enough for such purposes, is properly
lit and has a clean, smooth floor surface.
and handling and should use the maximum care so as
not to damage the individual parts or injure anyone.
To perform the unloading operation, use only qualified
and trained personnel (truck and crane operators, etc.)
and also suitable hoisting equipment for the weight of
the installation or its parts.
Follow carefully all the safety rules.
The personnel must be equipped with the necessary
safety clothing.
The manufacturer will not be responsible for the un-
loading operations and transport to the workplace of
the machine.
equipment. Unpack the machine and verify if there has
been any damage due to transportation.
In case of damage, call immediately LARIUS and the
Shipping Agent. All the notices about possible damage
or anomalies must arrive timely within 8 days at least
from the date of receipt of the plant through Registered
Letter to the Shipping Agent and to LARIUS.
competence and must be performed in accordance with
the regulations in force in the country where the plant is
installed and used.It is nevertheless sound practice to
recycle packaging materials in an environment-friendly
manner as much as possible.
SAFETY RULES
THE EMPLOYER SHALL TRAIN ITS EMPLOYEES
-
-
IS USED.
Read carefully and entirely the following
instructions before using the product. Please
save these instructions in a safe place.
The unauthorised tampering/replacement of
one or more parts composing the machine,
the use of accessories, tools, expendable
materials other than those recommended by
the Manufacturer can be a danger of accident.
The Manufacturer will be relieved from tort and
criminal liability.
-
PERLY.
NEVER
NEVER
OTHER PEOPLE.
NEVER
-
EQUIPMENT.
E
F
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SETTING-UP
CONNECTION OF THE FLEXIBLE HOSE TO THE GUN
making sure that the connections are properly tight (it is
best to use two spanners).
NEVER
It is recommended to use the hose provided with the
standard kit (rif. 8151).
NEVER use a damaged or a repaired flexible hose.
OPERATOR.
The high speed of travel of the product in
the hose can create static electricity through
discharges and sparks. It is suggested to earth
the equipment.
The pump is earthed through the earth cable
of the supply.
The gun is earthed through the high pressure
flexible hose.
All the conductors near the work area must be
earthed.
-
-
Always check the product is compatible with
the materials composing the equipment (pump,
spray gun, flexible hose and accessories) with
which it can come into contact. Never use paints
or solvents containing Halogen Hydrocarbons
(as the Methylene Chloride).
If these products come into contact with
aluminium parts can provoke dangerous
chemical reactions with risk of corrosion and
explosion.
Electrical safety precautions
connecting the cable to the mains.
performing any maintenance operation or replacing of
accessories.
the electric cable.
Protect the cable from heat, oil and sharp edges.
cable suited for outdoor use and so marked.
Never attempt to tamper with the calibre of
instruments.
Stop the machine whenever someone is within its vicinity.
out by skilled personnel, otherwise considerabledanger to
the user may result.
The conditions of guarantee do not apply in the
following situations:
- improper washing and cleaning of components
causing malfunction, wear or damage to the
equipment or any of its parts;
- improper use of the equipment;
- use that does not conform with applicable na-
tional legislation;
- incorrect or faulty installation;
- modifications, interventions and maintenance that
have not been authorised by the manufacturer;
- use of non-original spare parts or parts that do
not correspond to the specific model;
- total or partial non-compliance with the instruc-
tions provided.
CONDITIONS OF GUARANTEE
G
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PREPARATION OF THE PAINT
gun.
Make sure the product to be used is compatible
with the materials employed for manufacturing
the equipment (stainless steel, aluminium
and
carbon steel
).
Because of that, please contact
the supplier of the product.
Never use products containing halogen hydrocarbons (as
methylene chloride). If these products come into contact with
aluminium parts of the equipment, can provoke dangerous
chemical reactions with risk of explosion.
(so as to drain the oil inside) till a clean solvent comes out.
Now, release the trigger.
as to recover the residual solvent.
G3).
Do not set the pump to work without product,
because this could spoil its gaskets.
Absolutely avoid to spray solvents indoors. In
addition, it is recommended to keep away from
the pump in order to avoid the contact with the
solvent fumes.
besides the solvent wash, a wash with soapy and then
clean water is suggested.
WASHING OF THE NEW EQUIPMENT
with light mineral oil left inside the pumping group as
protection. As soon as the connections have been carried
out, before putting the product in the tank, it is necessary
to rinse the pump by means of the circulation of solvent
(thinner for paints).
G1) and (G2) by blowing compressed air
before connecting them
Make sure that the atomising air supply is shut off.
G3) slightly clockwise
so that the machine operates at minimum power.
G1
G3
G2
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OPERATION
START OF THE PAINTING OPERATIONS
SETTING UP ope-
rations above described.
H1) with pure and perfectly filtered product.
(H2) from the spray gun (H3)
to the flow regulator (H4).
(H5) from the spray gun (H3) to
the coupling (H6).
(H7); the pressure must be of roughly 6 bar, max. 7,5 bar.
H8).
H9); the pump will be
set to work. Let the product recycle for a short period (2
minutes) and then close the recycling tap (H8).
H10).
H
STANDARD-VERSION
PLUS VERSION
H4 H2
H11
H9
H6
H2
H3
H5
H8
H10
H7
H1
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SPRAY ADJUSTMENT
Slowly turn the knob on the flow regulator (H4) clockwise,
until a pressure is obtained that guarantees good atomi-
sation of the product.
pressure regulating knob (H11).
working pressure. On the contrary, a too high pressure
causes a high fog (“overspray”) and waste of product.
sideways (right-left) when spraying.
Reduce product pressure to the minimum (0,5-1 bar) by
means of knob (I1).
Use knob (I2)
I4) from tank (I3) and introduce
it into an empty can for recuperating the product.
I5) and let the pump work until the
tank and the pump itself have been emptied.
I5).
I4) into the tank (I3).
I3).
I5), set the product pressure at
the minimum value by means of the knob (I1).
a short time and then close the recycling tap (I5).
I6) and rinse it with the solvent,
put it back and by means of the spray gun discharge in a
tank the product left until the solvent comes out.
and the support to be painted and also keep yourselves
perpendicular to it.
NEVER point the spray gun at yourselves or at
other people. The contact with the casting can
use serious injuries. In case of injuries caused by
the gun casting, seek immediate medical advice
specifying the type of the product injected.
ICLEANING AFTER THE SPRAY PAINTING OR IN CASE OF PROD-
UCT CHANGE
I2
I1
I3
I4I5
I6
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ED. 14 - 11/2021 - Cod. 150145
ROUTINE MAINTENANCE
J1), (J2) and (J3) and replace them when
necessary.
in order to let the thinner circulate during at least five
minutes.
more times until all the residues of the product will have
been eliminated.
I7) by means of a rag and wash
the filters (I8), (I9) and (I10) with the solvent.
of water soluble products, first clean the pump with water
and then let some alcohol circulate through the plant.
If it is foreseen a long period of standstill for
the pump, after the cleaninng let some light
mineral oil circulate in order to protect it against
corrosion.
J
I8
I9
I10
I7
J3
J2
J1
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ED. 14 - 11/2021 - Cod. 150145
TROUBLESHOOTING
Solution
Cause
Problem
The equipment does not suck the
product
The equipment suck but does not
reach the pressure desired
When pressing the trigger, the
pressure lowers considerably
The pressure is normal but the
product is not atomized.
Leakage from the seal-tightening
screw
The atomization is imperfect
The circulation tap is open;
There is no atomising air;
(with very dense products, remove
the filter);
atomising air;
Replace or adjust the gasket;
K
Intentionally blank page
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48
47
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12
13
46
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40
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28
L
LARIUS 2 SPARE PARTS LIST IN STAINLESS STEEL
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ED. 14 - 11/2021 - Cod. 150145
Pos. Code Description Q. ty
8132 Larius 2 stainless steel
8232
Larius 2 stainless steel abrasive products
1 8134 Flange 2
2 8039 O ring 4
391641 Lower ball Ø3/4” 2
8189 Lower ball Ø3/4” abrasive products 2
4 8016 Lower ball seat 2
58017 Upper ball Ø9/16” 2
8188 Upper ball Ø9/16” abrasive products 2
6 8015 Upper ball seat 2
7 8043/1 Manifold 2
8 8158 Selfocking nut 2
9 8138 Membrane pressing washer 2
10 301013 O ring 4
11 8056 Fitting 1
12 8022 Supporting bracket 2
13 7043 Screw 4
14 3343 Fitting 1
15 8167 Manometer 1
16 3341 Union elbow 1
17 8027 Pilot valve 1
18 8012 Membrane pressing washer 2
19 8084 Screw 4
20 8013 PTFE membrane 2
8187 Membrane PTFE abrasive products 2
21 8014 Rubber membrane 2
22 8011 Washer 2
Pos. Code Description Q. ty
23 8007 Elastic ring 2
24 8005 O ring 2
25 8004 Seal ring seat 2
26 8006 Seal ring 2
27 8021 Pilot pad 2
28 8009 Elastic ring 2
29 8010 Elastic pin 1
30 8043 O ring 2
31 8008 Rod 1
32 8001 Pump body 1
33 8047 Screw 12
34 8054 Silencer 2
35 8026 Grub screw 2
36 8055 Fitting 1
37 3344 Pressure regulator 1
38 8032 "I" fitting 1
39 3338 Bayonet fitting 1
40 8031 Fitting ¼”-Ø4 1
41 8044/1 Hose 1
42 33010 Washer 4
43 8020 Plug 4
44 8037 Screw 4
45 8071 Washer 3
46 8119 Plug 1/2" 1
47 8137 Fitting 1/2" 2
48 8136 Upper manifold 1
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ED. 14 - 11/2021 - Cod. 150145
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8
16
15
12
2
6
1
10
5
3
2
18 19
20
9
8
4
13
7
12
10
14
11
10
27 26
25
19
20
22 21 3
2
4
35
36
47
48
24
23
20 19
18
1
6
5
2
34
33
21 22 20 19
23
24
25
26
28
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29
31
31 30
32
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MLARIUS 2 SPARE PARTS LIST IN ALLUMINIUM
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