Samoa LARIUS NOVA 20:1 EXT User manual

OPERATING AND MAINTENANCE MANUAL
www.larius.com
ED. 03 - 10/2020
Manuale Cod. 150087
NOVA
20:1EXT
Airless pneumatic
pump for extrusion
95700 steel
II 2 G Ex h IIB T6 Gb
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.

ED. 03 - 10/2020 - Cod. 150087 www.larius.com
1
nova 20:1 ext
NOVA 20:1 EXT
Airless pneumatic pump for extrusion
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.
INDEX
A
C
D
B
E
H
G
F
I
M
N
J
K
L
O
P
Q
R
WARNINGS ..................................................................................................................................................................2
WORKING PRINCIPLE .................................................................................................................................................3
TECHNICAL DATA ........................................................................................................................................................4
DESCRIPTION F THE EQUIPMENT .............................................................................................................................5
TRANSPORT AND UNPACKING ..................................................................................................................................6
CONDITIONS OF GUARANTEE ...................................................................................................................................6
SAFETY RULES............................................................................................................................................................6
TYPICAL INSTALLATION..............................................................................................................................................8
SETTING UP.................................................................................................................................................................8
WORKING ....................................................................................................................................................................8
CLEANING AT THE END OF THE WORK ....................................................................................................................9
ROUTINE MAINTENANCE ...........................................................................................................................................9
TROUBLESHOOTING ................................................................................................................................................10
DISASSEMBLY OF THE PNEUMATIC MOTOR..........................................................................................................11
PUMPING GROUP SPARE PARTS.............................................................................................................................16
SPARE PARTS FOR MOTOR GROUP EXTRUSION 95905........................................................................................22
ACCESSORIES...........................................................................................................................................................24
ATEX CERTIFICATE ....................................................................................................................................................28
DECLARATION OF CONFORMITY.............................................................................................................................31

ED. 03 - 10/2020 - Cod. 150087
www.larius.com
2
nova 20:1 ext
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.




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.
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
A

ED. 03 - 10/2020 - Cod. 150087 www.larius.com
3
nova 20:1 ext
B
WORKING PRINCIPLE
Nova pump NOVA 20:1 EXT is a high pressure pneumatic pump
used for extrusion and transferring of high viscosity products.
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 reci-
procating movement of the motor piston; this movement is tran-
smitted through a connecting rod to the material pumping piston
ending with a shovel plate allowing to suck very visous products.
The ratio 20:1 means that the outlet pressure of material is 20
times higher than the pump feed air pressure.
Pump feed air intel
Connection sleeve
Ring gasket press
Lubrificant cup

490 mm
1350 mm
ED. 03 - 10/2020 - Cod. 150087
www.larius.com
4
nova 20:1 ext
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: PTFE 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
NOVA 20:1 EXT
Feeding air pressure 3-6 bar
Max product pressure 120 bar
Feeding air inlet 3/4” GAS (M)
Max delivery 24 l/min
Material output 1½” GAS (F)
Weight 57 Kg
Noise pressure level <90 dB (A)
Height total 1350 mm
C
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.
Fig. 1C

1
2
6
7
9
8
3
5
4
ED. 03 - 10/2020 - Cod. 150087 www.larius.com
5
nova 20:1 ext
Pos. Description
1 Pump feed air inlet
2 Pneumatic motor
3 Material outlet
4 Input product
5 Material pumping group
Pos. Description
6 Escape valve
7 Lubrificant cap
8 Ring gasket press
9 Connection sleeve
DESCRIPTION OF THE EQUIPMENT
D
Pos. Descrizione
1 Ingresso aria di alimentazione pompa
2 Motore pneumatico
3 Uscita materiale
4 Entrata materiale
5 Gruppo pompante materiale
Pos. Descrizione
6 Valvola di spurgo
7 Tazza porta lubrificante
8 Ghiera premi guarnizioni
9 Manicotto di congiunzione
Fig. 1D

ED. 03 - 10/2020 - Cod. 150087
www.larius.com
6
nova 20:1 ext

and markings on the outside of the packing.
          
used is large enough for such purposes, is properly lit and has
a clean, smooth oor surface.
         
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 qualied 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.
        
operations and transport to the workplace of the machine.

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 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 REGULATIONSINFORCEINTHECOUNTRY
WHERE THE PLANT IS INSTALLED AND USED.
 KEEP YOUR WORK PLACE CLEAN AND TIDY. DISORDER
WHERE YOU ARE WORKING CREATES A POTENTIAL RISK
OF ACCIDENTS.
      
STANCE.
        
DAMAGEDPARTSAND THE MACHINE CANWORKPROPERLY.
 
THE REGULATIONS IN FORCE.
        
EQUIPMENT OUT OF THE WORK AREA.
      
INDICATED.
        
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.
        
REGULARLY THE COMPONENTS OF THE SYSTEM.
REPLACE THE PARTS DAMAGED OR WORN.
TRANSPORT AND
UNPACKAGING
SAFETY RULES
CONDITIONS OF GUARANTEE
E
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.
F
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.
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.
G

ED. 03 - 10/2020 - Cod. 150087 www.larius.com
7
nova 20:1 ext
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.
(IF PROVIDED) 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 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 protection gloves, goggles
and proper face shields.
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.
 
IN CLOSED PLACES.
 
EXPLOSIVE GAS.
Take proper safety measures for the protection
of hearing in case of work near the plant.
        
FOR 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.
 
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.
Fig. 1G

2
1
ED. 03 - 10/2020 - Cod. 150087
www.larius.com
8
nova 20:1 ext
SETTING UP
TYPICAL INSTALLATION
NOVA 20:1 EXT pump can be installed on pneumatic double post
ram whit shovel plate (see the picture).
The double post ram allows to suck the product directly from
the drum and also to replace quickly the drum itself. The shovel
plate, fastened at the base of the pump, compresses the material
ensuring a constant ow of product. In addition, is protects the
material not yet sucked against powder, moisture and drying
caused by contract with air.
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.
WORKING
(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).
Make the compressed air ow into the pump. It is advisable to
adjust air pressure to minimum necessary for its continuous
working.

stopping. Pump will start working again any time the trigger of
the spray gun is pressed or the delivery valve is open.

valve and close it when some material comes out

oil and a part of it could be left inside the pumping element.
Point the spray gun or the delivery valve at the tank and drain
the product left inside the pump till the material to be used
has come out.
           (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.
H
J
Pos. Description
1 Double post ram for 200 litres drums
2 Shovel plate in cast iron complete with double gasket
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 20 time the inlet pressure of the pump feed air.
Therefore, it is extremely important to adjust the
value of the feed air pressure.
Check all the fittings for connection of the different
components (pump, flexible hose, spray gun, etc.)
before using the equipment.
Always avoid pump idling: this operation could
damage the pneumatic motor and the seals.
I
CONNECTION TO THE FEED AIR
For pump feed use a hose with an internal diameter no lower
than 20 mm.
CONNECTION OF THE MATERIAL OUTLET HOSE
Connect the high pressure hose at the outlet of the pump.
It is recommended to tighten the ttings.
Fig. 1H

L2
L1
ED. 03 - 10/2020 - Cod. 150087 www.larius.com
9
nova 20:1 ext
CLEANING AT THE END OF
THE WORK
ROUTINE MAINTENANCE
  Check periodically (and each time the pump is operated after
a long storage) the packing nut (L2) is not loosened, causing
otherwise the coming out of the product. To tighten the packing
nut, lift the wet cup (L1).The packing nut (L2) 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.
 
the cup (L1) with lubricant (compatible with the product used).
 
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).
By cleaning at the end of the work we mean the cleaning to carry
out in case of use with a different product or if a long period of
downtime is foreseen.
 
 
(check its chemical compatibility with the product being used).
           
adjust the air pressure to minimum necessary to its continuous
working.
  
drain all the product left inside the pump till a clean solvent
comes out.
 
pressure.
 
light mineral oil inside the pumping unit.
K
Store possible dangerous fluids in proper
containers. Their disposal must be performed in
accordance with the regulations in force about
the industrial waste goods.
Always close the compressed air supply and
release the pressure in the plant before performing
any check or maintenance of the pump.
L
Lubricating oil
Cod. 16340
Conservare eventuali fluidi pericolosi in con-
tenitori appropriati. Essi vanno eliminati in os-
servanza alle leggi relative allo smaltimento dei
rifiuti industriali.
Chiudere sempre la fornitura di aria compressa
e scaricare la pressione nell’impianto prima di
effettuare qualsiasi tipo di controllo o di manu-
tenzione sulla pompa.
Fig. 1L
Fig. 2L

ED. 03 - 10/2020 - Cod. 150087
www.larius.com
10
nova 20:1 ext
TROUBLESHOOTING
M
Problem Possible cause Solution
The pump does not start Feeding air is not enough; Check the air supply. Increase the
diameter of the feeding hose;
Outlet product line clogged; Clean. Disconnect the outlet product
pipe. Feed pump at minimum pressure
and check if the pump starts without
the outlet pipe;
Dried product inside the pumping element; Disassemble the pumping group and
clean;
Pneumatic motor blocked in the cycle
reversal position;
Turn the plug counterclockwise and
push downwards the valve body. Use
a metal rod and a mallet;
Parts failure of the pneumatic motor; Disassemble the motor and check;
Accelerated working and no pressure
of the pump
There is no product; Add product;
The pump sucks air; Open the exhausting valve. For
the version on air hoist, follow the
instructions in the relevant manual;
Feeding air is not enough; Increase the feeding air pressure;
Suction valve worn or partially clogged; Disassemble the suction valve. Clean
and/or replace if necessary the worn
parts;
Outlet valve worn or partially clogged; Disassemble the outlet valve. Clean and/
or replace if necessary the worn parts;
The pump works, but the product is
not flowing enough
Suction valve worn or partially clogged; Disassemble the suction valve. Clean
and/or replace the worn parts;
Outlet product line clogged; Clean. Disconnect the outlet product
pipe. Feed pump at minimum pressure
and check if delivery increases without
the outlet pipe;
The feed air pressure is too low; Increase air pressure;
Leakage of product from the
lubricating cup
Upper gaskets worn. Tighten the packing nut. In case of
persistent waste of product, replace
the upper gaskets of the pumping unit.
Always close the compressed air supply and release the pressure in the plant before performing any check or
replacement of parts of the pump.

N8
N9
N6
N12
N13
N14
N7
N14
N13
N12
N6
N15
N16
N10
N11
N11
N10
N3
N2
N1
N4
N5
ED. 03 - 10/2020 - Cod. 150087 www.larius.com
11
nova 20:1 ext
 
group from the motor.
 ir feeding pipe to the pump.
 (N1)and the sleeve (N2).
 ounterclockwise the screws (N3)take care to the washers
(N4)and remove the covering (N5).
screw the two ring nuts (N6)from the support (N7).
  (N8)take care to the washers
(N9)and remove the support (N7)together with the rollers (N10)
and the pins (N11).
 (N12), the spring guide rod (N13) and the
roller pushing piston (N14). Ensure the spring slides freely on
the guide rod, the guide rod slides into the roller pushing piston
and this last slides into the mount hole.
    (N10)and the pin (N11) are undamaged.
Replace them if damaged.
  (N15)and the washer (N16).
Always close the compressed air supply and rele-
ase the pressure in the plant before disassembling
the pneumatic motor of the pump.
DISASSEMBLY OF THE
PNEUMATIC MOTOR
N
Coupling sleeve
Fig. 1N

N20
N21
N17
N22
N23
N18 N19 N17 N19 N18
N28
N29
N24
N25
N26
N27
ED. 03 - 10/2020 - Cod. 150087
www.larius.com
12
nova 20:1 ext
 (N17)so as to take out the valves (N18)
and the springs (N19) (clean and/or replace the worn parts).
  (N20)[take care of the washer (N21)] by
keeping the bush (N22) blocked using a wrench.
 (N23) from the rod (N17).
 (N22)(if necessary, keep the rod (N23)blocked
on the threaded part using pliers with the bits wrapped in rags
to avoid damage to thread).
 (N24)[take care to the washers (N25)], a
manifold (N26) and the gasket (N27).
Handle with care the manifold. The edges of its
plate are very sharp.
Important: do not remove the other manifold if
not necessary (it will facilitate the fastening of
the manifold removed).
  (N28)and the rubber
pad (N29).
Fig. 2N
Fig. 3N Fig. 4N

N32
N33
N34
N30
N31
N38
N37
N36
N35
ED. 03 - 10/2020 - Cod. 150087 www.larius.com
13
nova 20:1 ext
  (N30)[take care
to the washer (N31)] and check the seal inside the screw (N30)
is undamaged.
     (N32)[take care of the washers (N33)]
and remove carefully the cylinder (N34) (do not bend it during
extraction in order to avoid that motor piston may damage the
internal surface of the cylinder).
  (N35).
  (N36) is undamaged.
           (see
illustration) and unscrew the fitting (N37) with a wrench.
  (N38)and check it is undamaged.
  (N38)with vaseline grease before inserting
it into the housing of the piston rod.
 
screw the fitting (N37)(application of a sealant on the thread is
advisable). Warning: tighten here
Fig. 5N
Fig. 6N

N52
N43
N41
N42
N51
N50
N49
N44
N48
N47
N46
N45
N44
N40
N39
ED. 03 - 10/2020 - Cod. 150087
www.larius.com
14
nova 20:1 ext
 (N39) is undamaged.
 (N40)is undamaged and correctly positioned.
  (N41)with a thin layer of
vaseline grease.
  (N42)into the cylinder (N41) carefully.
   (N41)on the support (N39)(respect the
position) and at the same time insert the piston rod into the
support.
  (N43).
  (N44)the washer (N45).
  (N46) into the motor rod
(turn it slowly following the direction of the thread) and screw
it on the cylinder (N41).
     (N47)and the washer (N48) into the
support.
  (N49)on the motor rod (N44). Insert the seat
(N50), the washer (N51)and screw the lock nut (N52).
Adjust bush and lock nut so as the rod (N44) just out
of about 1 mm from the lock nut (see illustration).
Check the gas ring
Fig. 7N
Fig. 8N

N56 N57N53 N54 N55N56
N53
N68
N67
N66
N69
N63
N60
N58
N64
N65
N66
N59
N61
N62
ED. 03 - 10/2020 - Cod. 150087 www.larius.com
15
nova 20:1 ext
  (N54)and the valves (N55)into the seat (N53).
Position the seat on the pump support and lay the manifold
(N56) on the seat [do not forget the gasket (N57)].
      (do not tighten) ensuring
it is perfectly parallel to the other manifold and the
distance between them is 46 mm (see illustration).
The distance between the walls of the manifold and the edge
of the seat must be about 0,8 mm.
  (N58)and the pins (N59)with vaseline grease
and insert them into the mount (N60).
  (N61)and the washer (N62)with vaseline
grease and insert them into the mount (N60).
  (N63), the spring guide rods
(N64), the springs (N65)and insert them into the mount (N60).
       (N66)on the mount
(N60).
          
(N68)[do not forget of washer (N67)].
  (N66)and the screws (N69).
 
line.
Fig. 9N
Fig. 10N

2
3
1
5
6
54
ED. 03 - 10/2020 - Cod. 150087
www.larius.com
16
nova 20:1 ext
WARNING: Always indicate code and quantity for each part required.
PUMPING GROUP SPARE PARTS
Long assembly pump - short assembly part
O
Pos. Code Description Q.ty
1 95003 Bush 1
2 95004 Sleeve 1
Pos. Code Description Q.ty
4 95748 200L drums connection tie rod 1
5 95753 Split pin 2
Pos. Code Description Q.ty
3 95005 O-ring 1
Pos. Code Description Q.ty
6 95007 Nut 1
Fig. 1O
Fig. 2O

7 8 9 11 12
10
16
8
13
9
15
14A
14B
ED. 03 - 10/2020 - Cod. 150087 www.larius.com
17
nova 20:1 ext
Pos. Code Description Q.ty
7 95008/1 Wet cup 1
8 95773 Gasket press 1
9 95776 Upper support 1
Pos. Code Description Q.ty
13 95767 Female ring 1
14A 95803 PTFE gasket 3
14B 95803/1 PTFE gasket 2
15 95766 Male ring 1
16 17110 Wrench 1
Pos. Code Description Q.ty
10 95721 Escape valve 1
11 95914 Tie rod 4
12 95781 Conveyor 1
Fig. 3O
Fig. 4O Fig. 5O

17 18 19 18 20
21 22 23 24 25
ED. 03 - 10/2020 - Cod. 150087
www.larius.com
18
nova 20:1 ext
Pos. Code Description Q.ty
17 98003 Material Cylinder 1
18 95722 Washer 3
Pos. Code Description Q.ty
21 95754 Shutter 1
22 98041 Male ring 1
23 95786 Gaskets 4
Pos. Code Description Q.ty
19 95730 Valve lock 1
20 98039 Lower rod 1
Pos. Code Description Q.ty
24 98042 Female ring 1
25 95733 Packing nut 1
Fig. 6O
Fig. 7O