Larius NOVA 45:1, NOVA 60:1 Operating And Maintenance Instructions Manual

OPERATING AND

MAINTENANCE INSTRUCTIONS

OPERATING AND

MAINTENANCE INSTRUCTIONS

ENGLISH

P A I N T S P R A Y I N G E Q U I P M E N T

II 2 G c IIB T6

AIRLESS PNEUMATIC PUMP

Ed.

007

11 - 11

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.

1

NOVA 45:1/60:1

English

S

DESCRIPTION FOR EXPLOSIVE AREAS ........ p.9

DISASSEMBLY OF THE PNEUMATIC MOTOR .p.12

DISASSEMBLY OF THE PUMPING GROUP .....p.17

EXPLODED VIEW FOR STAINLESS STEEL

PUMPING GROUP .............................................p.20

EXPLODED VIEW FOR MOTOR GROUP .........p.22

EXPLODED VIEW FOR CARBON STEEL

PUMPING GROUP .............................................p.24

EXPLODED VIEW FOR HIGH PRESSURE LINE

FILTER

................................................................p.26

COMPLETE HANDTRUCK ................................p.28

AIR GROUP COMPLETE ...................................p.29

ACCESSORIES ..................................................p.30

P

Q

R

INTRODUCTION

....................................................... p.1

WORKING PRINCIPLE ...................................... p.2

TECHNICAL DATA .............................................p.2

DESCRIPTION OF THE EQUIPMENT ..............p.4

TRANSPORT AND UNPACKING ......................p.5

SAFETY RULES .................................................p.5

CONDITIONS OF GUARANTEE ........................p.6

TYPICAL INSTALLATION ...................................p.6

SETTING-UP ...................................................... p.7

WORKING .......................................................... p.7

CLEANING AT THE END OF THE WORK .........p.8

ROUTINE MAINTENANCE ................................p.8

PROBLEMS AND SOLUTIONS .........................p.9

A
B
C
D
E

F
G
H

O

I

L

U

T

AIRLESS PNEUMATIC PUMPS FOR SPRAY PAINTING

AIRLESS PNEUMATIC PUMPS FOR SPRAY PAINTING

Read this operator’s

manual carefully before
using the equipment. An
improper use of this ma­chine can cause injuries

to people or things.

It indicates an acci­dent risk or serious

damage to equip-

ment if this warning

is not followed.

It indicates a fire
or explosion risk if
this warning is not

followed.

It is obligatory to wear suitable

clothing as gloves, goggles and

face shield.

It indicates impor-

tant recommenda-

tions about dispo-

sal andrecycling

process of products

in accordance with
the environmental

regulations.

It indicates wound and

finger squashing risk

due to movable parts in

the equipment.

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.

M

V
Z

N

2

NOVA 45:1/60:1

English

A

B

NOVA 45:1

3-7 bar (40-90 psi)

270 bar (3900 psi)

3/4" GAS (M)

14 l/min (3,7 gpm)

4

60

1" conical GAS (F)

57 kg

<90 dB (A)

1110 mm

PUMP FEED AIR PRESSURE

MAXIMUM PRESSURE OF THE PRODUCT

FEED AIR INLET

MAXIMUM DELIVERY

CYCLES PER LITRE

MAXIMUM CYCLES PER MINUTE

MATERIAL OUTLET

WEIGHT

NOISE PRESSURE LEVEL

TOTAL HEIGHT

3-7 bar (40-90 psi)

360 bar (5200 psi)

3/4" GAS (M)

12 l/min (3,2 gpm)

5

60

1" conical GAS (F)

57 kg

<90 dB (A)

1110 mm

NOVA 60:1

WORKING PRINCIPLE

NOVA pump 45:1 (or 60:1) is a pneumatic pump to be used in
the high pressure painting without air (Airless) or for transferring
of fluids in case of more stations of usage.
NOVA pump is essentially constituted of an air motor and a structure
called «material pumping group» or simply «pumping group».
In the pneumatic motor, compressed air causes the vertical recipro­cating movement of the motor piston; this movement is transmitted
through a connecting rod to the material pumping piston.

So doing the pump sucks the fluid and pushes it to the outlet.
The ratio 45:1 (o 60:1) means that the outlet pressure of fluid is
45 (o 60) times higher than the pump feed air pressure.

TECHNICAL DATA

Parts of the pump in contact with the material

Pumping group: galvanized carbon steel and cast iron or stainless
steel AISI 303 and 420B
Sealing balls: stainless steel AISI 420B
Gaskets: teflon or nitrile or delrin or vulkollan

Other parts of the pump

Support and cylinder for pneumatic motor: aluminium
Covering: sheet FE37
Motor piston and roller pushing mount: cast iron

Always observe these instructions carefully
when evaluating the product compatibility
and in case of disposal of some parts of the
pump no more usable, in order to meet the

environmental regulations on recycling process.

3

NOVA 45:1/60:1

English

1110

580530

87

240

0 5 10 15 20 0 5 10 15 20

0 1 2 3 4 5 0 1 2 3 4 5

0

50

100

150

200

250

0

60

120

180

240

300

BAR BAR

500

1000

1500

2000

2500

3000

3500

4000

600

1200

1800

2400

3000

3600

4200

4800

0

800

1600

2400

3200

4000

0

20

40

60

80

100

120

140

160

0

600

1200

1800

2400

3000

0

15

30

45

60

75

90

105

120

7 bar (100 psi)

5 bar (70 psi)

3 bar (40 psi)

PSI

L/MIN

CFMPSI

L/MIN

CFM

GPMGPM

L/MINL/MIN

Black curve: Material outlet pressure
Gery curve: Air consumption

The pump can work in continuity when the delivery is limited to the
white zone. Out of this zone the speed must be intermittent.

PUMP DELIVERY

MATERIAL OUTLET PRESSURE

AIR CONSUMPTION

PUMP DELIVERY

MATERIAL OUTLET PRESSURE

AIR CONSUMPTION

4

NOVA 45:1/60:1

English

C

DESCRIPTION OF THE EQUIPMENT

POS.

1

2

3

POS.

4

5

6

Pump feed air inlet

Pneumatic motor

Material outlet

Description

Fluid inlet

Fluid pumping group

Eyebolt for pump transport

Description

ANTI-FREEZE SYSTEM

1

3

2

6

4

5

5

NOVA 45:1/60:1

English

D

E

TRANSPORT AND
UNPACKING

• The packed parts should be handled as indicated in the
symbols and markings on the outside of the packing.

• Before installing the equipment, ensure that the area to
be used is large enough for such purposes, is properly
lit and has a clean, smooth floor surface.

• The user is responsible for the operations of unloading
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 unloading
operations and transport to the workplace of the machi­ne.

• Check the packing is undamaged on receipt of the 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.

• The disposal of packaging materials is a customer’s
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

ABOUT ALL THOSE RISKS STEMMING FROM ACCI­DENTS, ABOUT THE USE OF SAFETY DEVICES FOR
THEIR OWN SAFETY AND ABOUT THE GENERAL
RULES FOR ACCIDENT PREVENTION IN COMPLIAN­CE WITH INTERNATIONAL REGULATIONS AND WITH
THE LAWS OF THE COUNTRY WHERE THE PLANT
IS USED.

THE BEHAVIOUR OF THE EMPLOYEES SHALL STRICTLY

COMPLY WITH THE ACCIDENT PREVENTION AND
ALSO ENVIRONMENTAL REGULATIONS IN FORCE IN
THE COUNTRY WHERE THE PLANT IS INSTALLED AND
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.

• KEEP YOUR WORK PLACE CLEAN AND TIDY. DISORDER
WHERE YOU ARE WORKING CREATES A POTENTIAL
RISK OF ACCIDENTS.

• ALWAYS KEEP PROPER BALANCE AVOIDING UNUSUAL
STANCE.

• BEFORE USING THE TOOL, ENSURE THERE ARE NOT
DAMAGED PARTS AND THE MACHINE CAN WORK PRO­PERLY.

• ALWAYS FOLLOW THE INSTRUCTIONS ABOUT SAFETY
AND THE REGULATIONS IN FORCE.

• KEEP THOSE WHO ARE NOT RESPONSIBLE FOR THE
EQUIPMENT OUT OF THE WORK AREA.

• NEVER EXCEED THE MAXIMUM WORKING PRESSURE
INDICATED.

• NEVER POINT THE SPRAY GUN AT YOURSELVES OR AT
OTHER PEOPLE. THE CONTACT WITH THE CASTING CAN
CAUSE SERIOUS INJURIES.

• IN CASE OF INJURIES CAUSED BY THE GUN CASTING,
SEEK IMMEDIATE MEDICAL ADVICE SPECIFYING THE
TYPE OF THE PRODUCT INJECTED. NEVER UNDER­VALUE A WOUND CAUSED BY THE INJECTION OF A
FLUID.

• ALWAYS DISCONNECT THE SUPPLY AND RELEASE THE
PRESSURE IN THE CIRCUIT BEFORE PERFORMING ANY
CHECK OR PART REPLACEMENT OF THE EQUIPMENT.

• NEVER MODIFY ANY PART IN THE EQUIPMENT. CHECK
REGULARLY THE COMPONENTS OF THE SYSTEM.

REPLACE THE PARTS DAMAGED OR WORN.

•

TIGHTEN AND CHECK ALL THE FITTINGS FOR

6

NOVA 45:1/60:1

English

CONNECTION BETWEEN PUMP, FLEXIBLE HOSE AND

SPRAY GUN BEFORE USING THE EQUIPMENT.

• ALWAYS USE THE FLEXIBLE HOSE SUPPLIED WITH
STANDARD KIT. THE USE OF ANY ACCESSORIES OR
TOOLING OTHER THAN THOSE RECOMMENDED IN
THIS MANUAL, MAY CAUSE DAMAGE OR INJURE THE
OPERATOR.

• THE FLUID CONTAINED IN THE FLEXIBLE HOSE CAN
BE VERY DANGEROUS. HANDLE THE FLEXIBLE HOSE
CAREFULLY. DO NOT PULL THE FLEXIBLE HOSE TO
MOVE THE EQUIPMENT. NEVER USE A DAMAGED OR
A REPAIRED FLEXIBLE HOSE.

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.

• NEVER SPRAY OVER FLAMMABLE PRODUCTS OR

SOLVENTS IN CLOSED PLACES.

• NEVER USE THE TOOLING IN PRESENCE OF POTEN-

TIALLY EXPLOSIVE GAS.

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.

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 PROTECTION GLOVES, GOGGLES
AND PROPER FACE SHIELDS.

TAKE PROPER SAFETY MEASURES FOR THE PROTECTION
OF HEARING IN CASE OF WORK NEAR THE PLANT.

F

TYPICAL INSTALLATION

The NOVA pump is generally supplied on support for wall fastening
or on trolley or on double post ram.
For the correct fastening of the pump on other structures use
the 4 holes placed at the base of the pneumatic motor (see the
illustration for dimensions).

The machine is equipped with
an anti-freeze system

that allows it to
work even at very low tempe­ratures. However, after a few
minutes of operation, the
upper metal outer surface
cools dramatically.
Avoid touching the area
indicated.
Contact of the skin with the
low-temperature area may
cause frostbite. Common wor­king clothes and leather gloves
provide adequate protection.

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, 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 instruc­tions provided.

CONDITIONS OF GUARANTEE

7

NOVA 45:1/60:1

English

Ø266

Ø11

Ø240

45ϒ

45ϒ

H1

H2

• Make the compressed air flow into the pump. It is advisable to
adjust air pressure to minimum necessary for its continuous
working.

• When the product chamber is full, pump will start working and
stopping. Pump will start working again any time the trigger
of the spray gun is pressed or the delivery valve is open.

• The pump has been adjusted at our factory with light mineral
oil and a part of it could be left inside the pumping element.
Point the spray gun (H3) or the delivery valve at the tank (H4)
and drain the product left inside the pump till the material to
be used has come out.

Always avoid pump idling: this operation could
damage the pneumatic motor and the seals.

• In case of long inactivity during the use with the plant (for
example, all night long at the end of the working day), ensure

the product you are using can be left inside the pump and
the different pipes without drying.

In this case, it is enough to stop the air supply to the pump

and drain the residual pressure in the circuit acting on the
delivery valve or on the pump bleeder valve.

*

*Int. holes

G

SETTING-UP

PUMP FASTENING ON THE HOIST

For the correct fastening of the pump on the ram, follow the
procedure described in the manual for use and maintenance of
the double post ram.

CONNECTION TO THE FEED AIR

For pump feed use a hose with an internal diameter no lower
than 20 mm.

H

WORKING

Install at the pump inlet an air pressure regulator

(it is suggested complete with condensate filter
and lubricator). The outlet pressure of the material

is 45 times (NOVA 45:1) or 60 times (NOVA 60:1)
the inlet pressure of the pump feed air. Therefore, it is extre­mely important to adjust the value of the feed air pressure.

CONNECTION OF THE MATERIAL OUTLET HOSE

Connect the high pressure hose at the outlet of the pump.
It is recommended to tighten the fittings.

Check all the fittings for connection of the dif-

ferent components (pump, flexible hose, spray

gun, etc.) before using the equipment.

• Dip the material pumping hose (H1) into the product tank

(H2) (if the pump is fixed on the double post ram, follow the

procedure described in the manual of use and maintenance
of the double post ram).

H4

H3

8

NOVA 45:1/60:1

English

I

CLEANING AT THE END OF
THE WORK

By "cleaning at the end of the work" is meant the cleaning to carry
out in case of use with a different product or if a long period of
storage is foreseen.

• Stop the air supply to the pump.

• Dip the material pumping hose into the washing solvent
tank (check its chemical compatibility with the product being
used).

• Make compressed air flow into the pump. It is advisable to
adjust the air pressure to minimum necessary to its continuous
working.

• Point the spray gun or the delivery valve at a container and
drain all the product left inside the pump till a clean solvent
comes out.

• Now, stop the air supply to the pump and drain the residual
pressure.

• In case of long inactivity, the operations of sucking and leaving
light mineral oil inside the pumping element are suggested.

Store possible dangerous fluids in proper con­tainers. Their disposal must be performed in
accordance with the regulations in force about
the industrial waste goods.

L

ROUTINE MAINTENANCE

Always close the compressed air supply and re­lease the pressure in the plant before performing
any check or maintenance of the pump.

• Check periodically (and each time the pump is operated after
a long storage) the packing nut is not loosened, causing

otherwise the coming out of the product. To tighten the packing
nut, lift the wet cup (see illustration below).

Use the wrench supply (ref. 11504). The packing nut must be

tightened so as to avoid wastes of product, but not excessively
to provoke pumping piston seizure and seals wear. In case
of persistent coming out of product, replace the seals.

• To prevent the product from drying up on the piston rod, refill
the cup with lubricant (compatible with the product used).

• Check periodically the air supply to the pump. Ensure the
air is always clean and lubricated. In case of installation of
a lubricator on the air supply to the pump, it is advisable to
keep its cup full of a mixture of water and antifreeze liquid
(dilution ratio 4:1).

Oil ring

Wet cup

Key
Ref. 11504

9

NOVA 45:1/60:1

English

M

PROBLEMS AND SOLUTIONS

Solution

Cause

Problem

• The pump does not start

• Accelerated working and no pres-

sure of the pump

• The pump works, but not sufficient
flow of product

• Leakage of product from the wet
cup

• Feed air not sufficient;

• Outlet product line clogged;

• Dried product inside the pumping
element;

• Pneumatic motor blocked in the cycle
reversal position;

• Parts failure of the pneumatic motor;

• There is no product;

• The pump sucks air;

• Feed air not sufficient;

• Suction valve worn or partially clog­ged;

• Outlet valve worn or partially clog­ged;

• Suction valve worn or partially clog­ged;

• Outlet product line clogged;

• The feed air pressure is too low;

• Upper gaskets worn.

• Check the air supply. Widen the
diameter of the feed hose;

• Clean. Disconnect the outlet product
pipe. Feed pump at minimum pres­sure and check if the pump starts
without the outlet pipe;

• Disassemble the pumping group and
clean;

• Turn the plug counterclockwise and
push downwards the valve body. Use
a metal rod and a mallet;

• Disassemble the motor and check;

• Add product;

• Open the bleeder valve. For ram
version, follow the instructions in the
relevant manual;

• Increase the feed air pressure;

• Disassemble the suction valve. Clean
and/or replace if necessary the worn
parts;

• Disassemble the outlet valve. Clean
and/or replace if necessary the worn
parts;

• Disassemble the suction valve. Clean
and/or replace the worn parts;

• Clean. Disconnect the outlet product
pipe. Feed pump at minimum pres­sure and check if delivery increases
without the outlet pipe;

• Increase air pressure;

• Tighten the packing nut. In case of
persistent waste of product, replace
the upper gaskets of the pumping
element.

Always close the compressed air supply and release the pressure in the plant before performing any check or
replacement of parts of the pump.

N

These safety instructions refer to the installation, use and main­tenance procedures for NOVA series LARIUS pneumatic piston
pumps for decanting. These pumps are designed for use in poten­tially explosive areas where gas or vapours are present.

NOVA series LARIUS pneumatic piston pumps
are group II mechanical devices for use in the
presence of gas in zones classified as IIB (category
2 G). They have been designed and constructed in
accordance with ATEX Directive 94/9/EC and the
European standards: EN 1127-1, EN 13463-1ed
EN 13463-5.

These instructions must be followed in addition to
the warnings given in the user and maintenance
manual.

DESCRIPTION FOR EXPLOSIVE AREAS