Samoa LARIUS VEGA 34:1 Operating instructions

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REV. 02 - 10/2020
Manuale Cod. 150089
OPERATING AND MAINTENANCE MANUAL
EN
VEGA 34:1
Airless / Air assisted airless pneumatic pump

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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F
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AA
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VEGA 34:1
REV. 02 - 10/2020 - Cod. 150089
WARNINGS ............................................................................................................................................................ p. 2
WORKING PRINCIPLE ........................................................................................................................................... p. 3
TECHNICAL DATA .................................................................................................................................................. p. 4
DESCRIPTION OF THE EQUIPMENT .................................................................................................................... p. 6
CARRIAGE AND UNPACKING ............................................................................................................................... p. 8
CONDITIONS OF GUARANTEE ............................................................................................................................. p. 8
SAFETY INSTRUCTIONS ....................................................................................................................................... p. 8
CONNECTIONS...................................................................................................................................................... p. 9
OPERATION............................................................................................................................................................ p.11
CLEANING AT THE END OF THE WORK .............................................................................................................. p.13
ROUTINE MAINTENANCE ..................................................................................................................................... p.14
REPLACEMENT OF THE PUMPING UNIT GASKETS............................................................................................ p.15
CLEANING AND REPAIRING THE SUCTION VALVE ............................................................................................. p.16
MANUAL SERVICING OF THE PNEUMATIC MOTOR ........................................................................................... p.16
DISASSEMBLING THE MOTOR............................................................................................................................. p.17
TROUBLESHOOTING ............................................................................................................................................ p.19
SPARE PARTS
VEGA 34:1 PUMP COMPLETE PNEUMATIC MOTOR ........................................................................................... p.22
VEGA 34:1 PUMP COMPLETE PUMPING UNIT.................................................................................................... p.24
VEGA 34:1 PUMP COMPLETE FILTER .................................................................................................................. p.26
AIR REGULATION UNIT AIR ASSISTED AIRLESS FOR TROLLEY VERSION Ref. 91055/1.................................. p.28
AIR REGULATION UNIT AIRLESS FOR TROLLEY VERSION Ref. 91019/1........................................................... p.29
PAINTS SUCTION SYSTEM Ref. 16611................................................................................................................. p.30
COMPLETE TROLLEY Ref. 96320/1...................................................................................................................... p.31
ATEX CERTIFICATION
DESCRIPTION........................................................................................................................................................ p.32
TECHNICAL FEATURES......................................................................................................................................... p.32
MARKING ............................................................................................................................................................... p.33
SAFETY INSTRUCTIONS FOR THE INSTALLATION IN DANGEROUS AREAS..................................................... p.33
DECLARATION OF CONFORMTY.......................................................................................................................... p.35
VEGA 34:1
Pneumatic piston pump
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.

A
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
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VEGA 34:1
REV. 02 - 10/2020 - Cod. 150089
• 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 inuence 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 inammable 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 deect 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.

B
98140 Only pump version
98130 Airless on trolley version
98135 Air assisted airless on troley version
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VEGA 34:1
REV. 02 - 10/2020 - Cod. 150089
The ratio 34:1 means that the outlet pressure of the product is 34
times higher than the pump feed air pressure.
The unit comes complete with a transportation trolley, a high-
pressure product lter, an air supply regulator for the pump, a
product suction tube (complete with filter) and a recirculation tube.
Our spray guns are tested and controlled in our factory and are
delivered to the customer in perfect working conditions.
For this reason, in order not to alter the characteristics of these
units, it is advisable to carefully read these instructions and to
follow them accordingly.
VEGA 34:1 pump is a pneumatic pump without the use of
compressed air (AIRLESS). The stainless steel version is particularly
suitable for use with water-based paints.
The pump is essentially composed of an air motor and a structure
known as “Product Pumping Unit”, or simply the “Pumping Unit”.
In the pneumatic motor, the compressed air causes the vertical
reciprocating movement of the motor piston; this movement is
transmitted through a connecting rod to the product pumping
piston.
This allows the pump to suck the product and to feed it towards
the outlet.
WORKING PRINCIPLE
Fig. 1B

VEGA 34:1
Max delivery 1,4 l/m
Max air pressure supply 7 bar
Max working pressure 240 bar
*Feed air inlet 3/8’’ GAS (F)
Material entry 3/4’’ GAS (M)
Material exit 3/8’’ GAS (F)
Air consumption
3 bar 180l/m
5 bar 380l/m
7 bar 550l/m
Sound pressure level < 80dB (A)
VEGA 34:1
Motor diameter 76 mm (3’’)
Piston stroke 76 mm (3’’)
c.c. Cycle 19
N° cycle/m 60
N° cycle/l 50
Gasket PTFE + polyethylene
Weight 16 Kg
Height (A) 900 mm
Width (B) 450 mm
Depth (C) 470 mm
B
A
C
C
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VEGA 34:1
REV. 02 - 10/2020 - Cod. 150089
TECHNICAL DATA
Fig. 1C

AIR CONSUMPTION
Utilization Main materials
Wood Paints for wood in general Degreasers
Carpentry Very well ground enamels and rust preventers Detergents
Handcraft Primers Oils
Small and medium industry Polyurethan paints etc...
for limited productions Lakes
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VEGA 34:1
REV. 02 - 10/2020 - Cod. 150089
PRODUCT EXIT PRESSURE
Parts of the pumpt in contact with the product:
Pumping group: galvanized steel and aluminium or stainless steel
(according to versions)
Sealing balls: stainless steel AISI 420B
Gaskets: PTFE
Other parts of the pump:
Motor body and motor piston: aluminium
Pneumatic motor piston rod: stainless steel
Trolley frame: painted metal sheet
These notes shall be kept in consideration in
case you need to evaluate the compatibility
of a product to be used or when you need to
dispose one or more components of the pump,
in order to schedule a suitable reciclying of the
single component according to environment
standards.
O 0,2 0,4 0,6 0,8 1 GPM 0
BAR
125
100
75
50
25
0
PSI
2000
1750
1500
1250
1000
750
500
250
L/MIN.
500
400
300
200
100
0
CFM
20
17,5
15
12,5
10
7,5
5
2,5
O 1 2 3 4 L/MIN.
PUMP RATE
BLACK CURVE: PRODUCT EXIT PRESSURE
GREY CURVE: AIR CONSUMPTION
7 bar (100 psi) 5 bar (70 psi) 3 bar (40 psi)
The pump can operate in continuous
mode when the rate is limited to the
white area. Outside this area, the speed
shall be intermittent.

Pos. Description
1 Motor unit
2 Paint suction system
3 Air regulation unit
4 Pump feeding air pressure regulator
5 Compressed air inlet
6 Adjustment gun pressure
7 Pump feeding air pressure gauge
Pos. Description
8 Manometer for gun air pressure
9 Feeding air gun
10 Open/close air pump valve
11 Grounding cable
12 Product pumping unit
13 Suction hose fitting
D
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VEGA 34:1
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3
1
13
12
4 5
6
7 8 9
10
11
2
DESCRIPTION OF THE EQUIPMENT
Fig. 1D

Pos. Description
14 Equipment transport trolley
15 Pumping unit
16 Wheels
17 Filter unit
18 Product exit high pressure filter
19 Recirculation tap
Pos. Description
20 Product exit fitting
21 Recirculation tube fitting
22 Flexible hose air-product
23 Recirculation tube
24 Suction hose
25 Product suction filter
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VEGA 34:1
REV. 02 - 10/2020 - Cod. 150089
15
14
17
18
21
19
20
23
25
24
16
22
Fig. 2D

E
F
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VEGA 34:1
REV. 02 - 10/2020 - Cod. 150089
G
• Strictly respect the orientation of the package indicated
externally by labels or symbols.
• Before installing the equipment, prepare an environment
suitable in terms of space, proper lighting, clean and
smooth oor.
•
The manufacturer declines any liability relevant to the
unload and carriage of the equipment to the workplace.
• Check the integrity of the package upon receipt. Remove
the equipment from the packaging and check that no
damage has occured during transport.
Should any damaged components be found, promptly
contact LARIUS and the shipping agent. The maximum
deadline to notify the damage is 8 days from the date of
equipment receipt. The communication must be made
by registered mail with acknowledgement addressed to
LARIUS and to the carrier.
SAFETY INSTRUCTIONS
• THE EMPLOYER SHALL PROVIDE TO DULY TRAIN THE
PERSONNEL REGARDING THE RISKS OF ACCIDENTS,
THE SAFETY DEVICES AND THE GENERAL ACCIDENT
PREVENTION GUIDELINES PROVIDED BY THE
INTERNATIONAL DIRECTIVES AND BY THE LAW IN
FORCE IN THE COUNTRY WHERE THE UNIT IS INSTALLED,
IN ADDITION TO THE STANDARDS RELEVANT TO
ENVIRONMENTAL POLLUTION.
•PERSONNEL STAFF SHALL CAREFULLY RESPECT THE
ACCIDENT PREVENTION STANDARDS IN FORCE I N THE
COUNTRY WHERE THE UNIT IS INSTALLED, IN ADDITION TO
THE RULES RELEVANT TO ENVIRONMENTAL POLLUTION.
• KEEP THE WORKING AREA IN GOOD ORDER. FAILURE IN
RESPECTING THIS MAY CAUSE RISK OF ACCIDENTS.
• ALWAYS KEEP A GOOD BALANCE AVOIDING UNSAFE
POSITIONS.
• BEFORE STARTING OPERATION, CAREFULLY CHECK THAT
THERE ARE NO DAMAGED COMPONENTS AND THAT THE
EQUIPMENT IS ABLE TO OPERATE CORRECTLY.
• ALWAYS FOLLOW THE SAFETY INSTRUCTIONS AND
REGULATIONS IN FORCE.
• KEEP UNAUTHORIZED PERSONNEL AWAY FROM THE
WORKING AREA.
• NEVER EXCEED THE MAXIMUM OPERATING PRESSURE
• NEVER DIRECT THE GUN TOWARDS YOURSELF OR AN-
YONE ELSE. GETTING IN TOUCH WITH THE JET MIGHT
CAUSE SERIOUSWOUNDS.IN CASEOF WOUNDS DERIVED
BY THE GUN JET, IMMEDIATELY PROVIDE FOR MEDICAL
ASSISTANCE SPECIFYING THE PRODUCT YOU WERE
USING. NEVER UNDERESTIMATE THE WOUND CAUSED
BY THE INJECTION OF A FLUID.
• ALWAYS DISCONNECT THE POWER SUPPLY AND DI-
SCHARGE THE PRESSURE IN THE CIRCUIT BEFORE
PERFORMING ANY CONTROL OR REPLACEMENT OF
EQUIPMENT COMPONENTS.
CARRIAGE AND UNPACKING
All unloading and handling operations of the
equipment are at User’s care who should pay the
utmost attention in order to avoid any damage to
people or things.
The unloading operations shall be carried out
by skilled and trained personnel (truck, crane
operators, etc..) with suitable hoisting means able
to bear the weight of the package and to meet
all safey standards.
The personnel must be equipped with suitable
protective devices.
The disposal of packaging materials, at user’s
care, shall be performed in compliance with
applicable regulations in force in the country
where the equipment is installed.
It is however good practise to dispose the
packaging materials in the most environment-
friendly way.
Carefully read the following instructions before
using the equipment.
Keep these instructions with care.
Tampering or unauthorized replacement of one
or more parts composing the equipment, the
use of accessories, tools, consumables other
than those recommended by the manufacturer,
might represent a risk of injury and raise the
manufacturer from any liability and penalty.
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
national legislation;
- incorrect or faulty installation;
-modifications,interventionsandmaintenancethat
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
instructions provided.
CONDITIONS OF GUARANTEE

CONNECT THE GUN HOSE
• Connect the product feeding hose (H5) to the lter unit (H6).
H
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VEGA 34:1
REV. 02 - 10/2020 - Cod. 150089
H4
H1
H2
H3
H5
H6
Fig. 1H
Fig. 2H
• NEVER SPRAY FLAMMABLE PRODUCTS OR THINNERS
IN CLOSED ROOMS.
• NEVER USE THE EQUIPMENT IN PRESENCE OF
POTENTIALLY EXPLOSIVE GASES.
CONNECTIONS
CONNECT THE SUCTION AND RECIRCULATION HOSES
• Connect the suction (H1) and the recirculation hoses (H2)
to the pumping unit (H3) and to the lter (H4) as indicated in
the picture.
• MAKE SURE YOU KNOW HOW TO STOP THE EQUIPMENT
WHEN NEEDED. IT IS ALSO RECOMMENDED TO TRAIN
THE USERS ON THE SAFE AND CORRECT USE OF THE
EQUIPMENT BEFORE STARTING OPERATIONS.
• KEEP UNAUTHORIZED PERSONNEL FAR FROM THE
EQUIPMENT, ESPECIALLY IF THE PRODUCT TO BE USED
IS TOXIC .
• IF NECESSARY, USE WARNING SIGNALS TO KEEP ANY
UNAUTHORIZED PERSON AT A SAFE DISTANCE.
• MAKE SURE THAT THERE IS SOMEONE HEARING YOU IN
THE UNLIKELY EVENT OF AN ACCIDENT.
The high speed of the product flowing in the
flexible hose may cause statical electricity show-
ing short sparks. It is recommended to provide
a suitable grounding for the equipment. The
pump is connected to the ground cable of the
electric supply.
(IF PROVIDED)The gun is grounded by means of
the high pressure flexible hose. Each conductive
parts near the workplace shall be duly grounded.
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 alu-
minium parts can provoke dangerous chemical
reactions with risk of corrosion and explosion.
Avoid approaching too much to the pump piston
rod when the pump is working or under pressure.
A sudden movement of the piston rod can cause
wounds or finger squashing.
If the product to be used is toxic avoid inhalation
and contact, by using protective gloves, goggles
and suitable face shields.
Adopt suitable hearing protection measures when
working near the equipment.
• NEVER MODIFY ANY EQUIPMENT COMPONENT. PERIO-
DICALLY CHECK THE COMPONENTS OF THE SYSTEM.
REPLACE DAMAGED OR WORN COMPONENTS, IF ANY.
• CHECK AND TIGHTEN ALL FITTINGS BETWEEN THE PUMP,
THE FLEXIBLE HOSE AND THE GUN BEFORE USING THE
EQUIPMENT.
• ALWAYS USE THE HOSE PROVIDED IN THE STANDARD
KIT. USE OF EQUIPMENT OR ACCESSORIES OTHER THAN
THOSE RECOMMENDED IN THIS MANUAL MAY CAUSE
ACCIDENTS.
• THE FLUID CONTAINED IN THE FLEXIBLE HOSE CAN BE
VERY DANGEROUS. HANDLE THE HOSE WITH CARE. DO
NOT PULL THE HOSE TO MOVE THE EQUIPMENT. NEVER
USE A DAMAGED OR REPAIRED HOSE.

H2
H1
H10
H9
H8
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VEGA 34:1
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H7
H8
Fig. 5H
Fig. 3H
Fig. 4H
Fig. 6H
CONNECT THE FEEDING AIR HOSE
• Connect the adjustment group (H7) to the compressed air
tting (H8).
WASHING THE NEW EQUIPMENT
• Our equipment has been tested in our factory with a light
mineral oil which is being left inside the unit for protection. Before
sucking the product, it is necessary to duly wash with a thinner.
• Plunge the suction hose (H1) in the container of the washing
thinner.
• Plunge the recirculation hose (H2) in a collector (a metal container
is recommended).
• Open the recirculation tap (H9).
• Set the pump feeding pressure at about 3 bar and open the
air valve.
• The pump will start and will discharge the oil for the recirculation
hose. Close the recirculation tap as soon as the clean thinner
begins to flow.
• Take the suction hose out of the product container.
• At this point place the gun against the collector (H10) and
press the trigger in order to discharge the residual oil. Release
the trigger as soon as the clean thinner begins to flow.
• Direct the gun against the thinner container and press the
trigger in order to recover the clean thinner left inside the pump.
• As soon as the pump begins to work in an accelerated way
(“vacuum”) close the air valve.
NEVER use thread adhesive products on the
fittings.
We recommend the use of the hose included in
the standard kit.
NEVER use a damaged or repaired flexible hose.
Never operate the pump without the product, in order
to prevent the gaskets to be damaged.
Never spray cleaning liquids in close rooms. It is also
recommented to place yourself far from the pump in
order to avoid the contact with the cleaning liquids
vapours.
• At this point the unit is ready. Should water paints be used,
it is advisable to wash with soap water and then with clean
water, besides the washing with cleaning liquid.
PREPARATION OF THE PAINT
• Make sure that the product is suitable to be sprayed.
• Duly mix and lter the product before use. We recommend
the use of LARIUS METEX filters with fine-mesh (Rif. 214) or
large mesh (Rif. 215).

I1
H11
NOZZLE SIZE ACCORDING
TO THE PRODUCT
Nozzle Ø Product
mm
0,18 ÷ 0,28
inch
0,007” ÷ 0,011”
Paints and products without pigments and
charges. Very fine and with low visco-
sity paints and lakes, enamels, primers,
polyesters, oils, degreasers amd detergents,
polyurethan paints.
mm
0,33 ÷ 0,62
inch
0,013” ÷ 0,025”
Normal lakes or having higher viscosity,
fillers, produts with a coarse grinding, rust
preventers, vinyl produts for coverings, etc.
mm
0,68 ÷ 0,94
inch
0,027” ÷ 0,037”
Same products with a high yield, epossidic
resins, dispersion for the building industry,
applications with high thickness.
I
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VEGA 34:1
REV. 02 - 10/2020 - Cod. 150089
Before using the equipment, check all the connec-
tion fittings on the various components (pump,
flexible hose, gun, etc.)
Fig. 7H
Fig. 1I
OPERATION
PRODUCT PREPARATION
• Make sure that the product and the thinner are suitable to
be sprayed. Make sure that the thinner is suitable to be used
with the product to be sprayed. Make sure that the product
has been duly ltered and mixed.
NOZZLE AND FILTERS
• The nozzle and the lter shall be suitable for the gun, according
to the product to be sprayed and to the operation to be carried
out (refer to the assembly tables and instructions).
• This table is for indication only. The adapatability of a certain
product to a determined nozzle changes according to different
aspects. If previous experiences are lacking, a practical test
is always necessary. A nozzle, which has been duly chosen,
will give as result a neat jet without pulsations and gives a
perfect praying of the product.
• An inconstant spray, slightly marked on the sides, might
indicate a too low pressure. If the maximum pressure has
already been reached, it is then necessary to choose a smaller
nozzle. With the exclusion of some products, which can be
atomized at high pressures only, it is advisable not to exceed
the value of 140-170 Atm (high pressure could cause mist).
START SPRAYING OPERATIONS
• Use the equipment only after having completed all the
adjustment operations described in the previous paragraph.
•Considering an equal speed of application, a
nozzle with a spraying angle of 20° lays down
a film having a thickness which is averagely
double in respect to the one which can be obtai-
ned with the same nozzle with an angle of 60°.
•An excessive diameter of the angle could result
in an anomalous pressure drop.
•When ordering a nozzle, choose accurately the
reference number on the list of the nozzles.
• Use the provided lubricant (I1) (rif. 16325) in order to make
the sliding of the piston easier inside the sealing pack and
interpose oil to air.
• Fix the spraying nozzle on the gun, choosing the suitable
nozzle according to the characteristics of the product to be
used and the kind of operation to be performed.
• Rotate clockwise the pressure adjustment knob (H11) so
that the pump starts to work.
• When the product has been duly mixed, the product will ow
from the recirculation hose. (H2)
If the product does not ow, this means it is too thick and it is
necessary to dilute it again until a correct ow is achieved. Let
the product ow for a short time. At this point, the machine
is ready to work.
Make sure that the product is suitable to be
used with the materials employed for the unit
manufacturing. For this purpose, refer to the
product supplier.

I5
I7
I6
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I4
I3
I2
Fig. 2I
Fig. 3I
Fig. 4I
• Open the recirculation tap.
• When the air tap (I5) is closed, make the air ow from the
compressed air supply.
Check on the pressure gauge (I6) that the pressure does not
exceed 2-3 Atm [adjust it with the knob (I7)of the regulator].
• Open the air tap (I5).
Plungethesuction hose(I2)andtherecirculation
hose (I3) in the product container (I4).
Daily check that the ring nut is covered with
hydraulic oil (rif. 16325); the oil improves the
sliding of the piston and prevent the product,
coming out from sealing gaskets, to dry once the
equipment is stopped.
At the end of the work, stop the pump in the lower position in
order to prevent the product to dry on the piston and to damage
the gaskets.
ADJUSTING THE SPRAYING JET
• Slowly turn clockwise the pressure adjustment knob until
the suitable value able to grant a proper atomization of the
product is reached.
• An inconstant spray, slightly marked on the sides, might
indicate a too low pressure. On the contrary a too high pressure
might cause mist (overspray) and product dispersion.
• Do not spray without the contemporaneous advancement of
the gun (right-left) in order to avoid an anomalous thickness
of the paint.
• Always proceed with regular and parallel passages.
• Keep a constant distance (25/30 cm) between the nozzle and
the support to be sprayed and keep yourself perpendicular
to it.
• Avoid to work with maximum pressure.
• Let the product flow for a few seconds. Then close the
recirculation tap. The pump will continue to work until the
product will fill the high pressure flexible hose up to the gun,
then it will stop.
• Should the cycle speed be too high, decrease the feeding
pressure or slightly close the air tap (I5). Set the minimum
pressure necessary for the operation.
With an empty pump, a higher pressure might
cause a quick and violent movement of the piston,
which could be dangerous. Beside this, starting
with the max pressure (6-8 bar) the pump will
not be able to fill the chamber considering the
high speed of the cycle.
I5

J
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J4
J3
J2
J1
J2
J1
J2
J1
J3
Fig. 1J
Fig. 2J
Fig. 3J
Fig. 4J
CLEANING AT THE END OF
THE WORK
• Remove the suction (J1) and the recirculation hoses (J2)
from the product container (J3)by going on spraying (J4),
until the pump is completely empty.
NEVER direct the gun towards yourself or anyone
else.
Getting in touch with the jet might cause serious
wounds. In case of wounds derived by the gun
jet, immediatly provide for medical assistance
specifying the product you were using.
Recirculation-safety valve: during the operation
at the maximum pressure availble, when releasing
the gun trigger, you can assist to brisk pressure
increasings. In this case the recirculation-safety
valve automatically opens, discharging part of the
product from the recirculation hose. It then closes
in oder to set the previous working conditions.
• By going on spraying, lift the suction (J1) and the recirculation
hoses (J2), in order to drain out all the thinner. Then stop the
pump, by closing the air tap.
• After washing, in case a long period of downtime is foreseen
or if a water-based product has been used, it is advisable
to lubricate the inner parts (pumping group), by sucking the
hydraulic oil with the pump, without discharging it.
Before using the equipment, make sure to follow
the cleaning procedure.
• Plunge the suction (J1) and the recirculation hoses (J2)in the
thinner container (J3). Set pressure to the mimimum and by
keeping the nozzle below the thinner level in the container,
spray until the thinner has been recycled during three or ve
minutes.

K1 K2
OIL
Rif. 16325
K
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K3
PRODUCT SUCTION FILTER
K4
Fig. 1K
Fig. 2K
Fig.3K
ROUTINE MAINTENANCE
LUBRICATING THE GASKETS RING NUT
• Periodically check (and in any case each time the pump is
started after a long period of downtime) that the gaskets ring
nut is tight in order to avoid any product leak.
• Weekly check that the gaskets ring nut (K1) is tight. To
tighten the gaskets ring nut (K1) use the provided wrench
(K2). The ring nut shall be duly tightened so that to prevent
any leak but this shall not be excessive in order to avoid the
blocking of the pumping piston and the wear of the sealing
gaskets. Should the product leak, provide to replace the
upper gaskets. This adjustment shall be carried out after
having removed the air feeding tube and having discharged
the pressure.
Periodically check the air supply line to the
pump. Make sure that the air is always clean
and lubricated.
Before carrying out any control or maintenance
operation on the pump, always close the
compressed air supply and discharge the pressure
in the circuit.
CLEANING THE SUCTION FILTER
• Disassemble and clean the product suction filter (K3).
CLEANING THE PRODUCT SUCTION FILTER
• Disassemble and clean the high pressure filter for product
output (K4).
Daily check that the ring nut is covered with
hydraulic oil (rif. 16325); the oil improves the
sliding of the piston and prevent the product,
coming out from sealing gaskets, to dry once the
equipment is stopped.
PRODUCT OUTPUT FILTER

L5
L2
L1
L
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L3
L4 L3
L3 L7
L6
Fig. 1L
Fig. 2L
Fig. 3L
Fig. 4L
Fig. 5L
• Unscrew the three self-locking nuts (L3) and remove the
pumping unit (L4), by unscrewing it from the motor piston
rod.
• Remove the split pin (L5).
• Unscrew the gaskets ring nut (L6) form the pump housing.
Unscrew the group of the suction valve (L7) .
REPLACEMENT OF THE
PUMPING UNIT GASKETS
• Unscrew the lter group (L1) from the pump housing (L2).

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L9
L10
L11
L8
M
N
M1
M2
M3
M4
N1
N2
Fig. 6L
Fig. 1M
Fig. 1N
• Remove the piston (L8) from the pump housing and replace
the gaskets, upper set (L9) or lower set (L10), respecting
the assembly order of the same.
When reassembling the seat of the valve (L11) in
the piston (L8) the thread shall be covered with
threads braking adhesive.
• If the suction valve is seized in the housing of the pump,
inject oil around the thread and knock slightly around the
body of the pump by means of a wooden mallet. Unscrew
the valve from the pump body.
Remove the pin (M1) holding the ball, as well as the ring
stop (M2), the O-ring (M3), the ball (M4). Clean all the parts,
inspect them and reassemble all the parts in the same order,
by screwing the valve in its seat.
CLEANING AND REPAIRING
THE SUCTION VALVE
MANUAL SERVICING OF THE
PNEUMATIC MOTOR
• The pump feeding air pressure shall never be higher than
the maximum value provided by the technical data sheet.
Failure in respecting this value could cause the blocking of
the valves of the pneumatic motor in the cycle inversion
position.
• In order to restart a blocked motor, close the air feeding
valve and release the air pressure in the circuit. This should
allow the return of the valves in the correct position.
• Should the motor be blocked, proceed as follows:
- close the air supply to the pump and discharge the residual
pressure in the circuit;
- unsprew the plug (N1) and pull it upwards together with
the guide rod (N2), by making thus manually trig the run
inversion group.
- screw the plug.

O5
O
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O8
O8
O2
O3
O4
O6 O7
O1
O4
Fig. 1O
Fig. 2O
Fig. 3O
Fig. 4O
Fig. 5O
Fig. 6O
• Remove the screws (O4).
• Place the piston to the upper point of its run and unscrew
the plug (O1). Block the guide rod (O2) with clamping pliers
and replace the plug (O1) with a M8 nut (O3).
DISASSEMBLING THE UNIT
MOTOR
• Take out the cylinder (O5) with the utmost care from the
piston, without inclining it in order to avoid damages to the
inner walls of the same.
• By keeping the hands far from the cross piece (O6), press
on the rocker arm (O7) so that the cross piece (O6) trigs
downwards (drain valves closed).
• Unscrew the two counternuts (O8) which block the valve screws.

O10
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O11
O12
A
3,5 mm
O10
O14
O13
O15
O10
O9
Fig. 7O
Fig. 8O
Fig. 9O
Fig. 10O
Fig. 11O
Fig. 12O
• Remove the valve screws (O9) and check the wear condition
of the gaskets (O10).
•
Block the roller (O11) with the pliers and by pressing on the
spring (O12), remove it from its seat. In this way, it will be
possible to remove all the run inversion group.
• Check the condition of each piece, in particular of the gaskets
(O10) and the O-ring (O13), (O14) and (O15).
Control that the inner walls of the cylinder are not scratched.
Before reassembling all parts, lubricate them with light and
water proof grease.
• Adjust then the distance (A) between the gaskets and the
surface of the piston. This adjustment shall be done with the
cross piece (O6) down and it can be better done by using
our special metering device.
After having reassembled all parts, before connecting the
group to the pump, test it by feeding a small quantity of air
(3-4 bar).
• For a correct reassembly, refer to the pumping group detailed
drawing, by following the disassembly instructions in reverse
order.