Excalibur Larius Operating And Operating And Maintenance Instructions

with optic sensor

with optic sensor

OPERATING AND

OPERATING AND

MAINTENANCE INSTRUCTION

MAINTENANCE INSTRUCTION

PAINTING EQUIPMENT

ENGLISH

ELECTRIC PISTON PUMP

ELECTRIC PISTON PUMP

INTRODUCTION .................................................. p.1

WARNINGS .......................................................... p.2

A

WORKING PRINCIPLE ........................................ p.3

B

TECHNICAL DATA ................................................ p.4

C

DESCRIPTION OF THE EQUIPMENT ................. p.5

D

TRANSPORT AND UNPACKING ......................... p.6

E

SAFETY RULES ................................................... p.6

Electrical safety precautions ............................ p.7

F

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

Connection of the fl exible hose to the gun ....... p.7

Check on power supply .................................... p.8

Connection of the tooling to the power

supply ............................................................... p.9

Washing of the new equipment ........................ p.9

Preparation of the paint ................................... p.10

G

WORKING ............................................................ p.10

Start of the painting operations ........................ p.10

Spray adjustment ............................................. p.11

H

CLEANING AT THE END OF THE WORK ........... p.11

I

ROUTINE MAINTENANCE .................................. p.13

Check on the packing nut ................................. p.13

J

WARNING PLATE ................................................ p.13

K

PROBLEMS AND SOLUTIONS ........................... p.14

OPTIC EXCALIBUR

L

CORRECT PROCEDURE OF

DECOMPRESSION .............................................. p.15

M

REPLACING THE GASKET KIT AND SETTING

THE HYDRAULIC PRESSURE SWITCH ............. p.16

Refi tting and setting procedure ........................ p.17

REPLACEMENT OF THE PUMPING

N

GROUP’S GASKETS ........................................... p.19

Pit stop maintenance........................................ p.20

Replacing the foot valve seals .......................... p.20

Replacing the pump unit housing gasket ......... p.21

Replacing the pump unit stem gasket .............. p.23

Correct positioning of the pump unit ................ p.26

SPARE PARTS

COMPLETE ELECTRO-HYDRAULIC

O

DEVICE REF. 18639 AND 18639/110 .................. p.30

COMPLETE PUMPING GROUP .......................... p.32

P

RECIRCULATING-SAFETY VALVE GROUP

Q

REF. 16400 ........................................................... p.34

DRIVE ASSEMBLY ............................................... p.35

R

ELECTRIC MOTOR .............................................. p.36

S

ACCESSORIES .................................................... p.37

T

VERSIONS ........................................................... p.42

U

English

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.

1

OPTIC EXCALIBUR

English

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 infl 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.

It indicates a fi re or explosion risk if this warning is not followed.
Eliminate all ignition sources such as pilot lights, cigarettes, portable electric lamps and plastic drop cloths.
Keep work area free of debris.
ONLY use this equipment in a well ventilated area.
EARTH ALL THE EQUIPMENT LOCATED IN THE WORK AREA.
Do not form connections or switch light switches on or off if the air contains infl ammable fumes.
If electrical shocks or discharges are encountered the operation being carried out using the equipment must be stopped immedia-
tely.
Keep a fi re extinguisher at hand in the immediate vicinity of the work area.

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.

It indicates wound and fi 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.
There is a risk of injury or serious lesion related to contact with the jet from the spray gun. If this should occur, IMMEDIATELY contact
a doctor, indicating the type of product injected.
Do not spray before the guard has been placed over the nozzle and the trigger on the spray gun.
Do not put your fi ngers in the spray gun nozzle.
Once work has been completed, before carrying out any maintenance, complete the decompression procedure explained in this
manual.

It indicates important recommendations about disposal and recycling process of products in accordance with the environmental
regulations.

Report any danger of electric shock if the warning and presence of live electrical parts has not been indicated.
Store in a dry place and do not expose to the rain.
Check that the cables are in good condition.
Switch off the equipment and discharge any electricity before cleaning or maintaining the equipment.

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 earthed and that it complies with safety standards.

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.

2

A

WORKING PRINCIPLE

OPTIC EXCALIBUR

The LARIUS EXCALIBUR unit is defi ned “electric piston pump”.
An electric piston pump is used for high pressure painting without
air (from this process derives the term ”airless”).
The pump is controlled by an electric motor coupled with a re­duction gear.
A cam shaft and a connecting rod allow to obtain the reciprocating
motion necessary to the working of the “pumping group” piston.
The piston movement produces a “vacuum”.
The product is sucked, pushed towards the pump outlet and then

Frame mounted

sent to the gun through the fl exible hose.
A mechanical device on the side of the reduction gear casing,
allows to adjust and control the pressure of the material coming
out of the pump.
When the pump reaches the set value, the motor stops and starts
again when the value decreases.
A safety valve avoiding overpressure, guarantees the total reliability
of the equipment.

Trolley mounted

English

Fields of application

Indoor

Outdoor

Industrial buildings

Industrial constructions

Redeveloping

Roofi ng

Lacquer

Waterborne

Acrylic

Enamels

Fixative

3

Applications materials

Paints

Emulsions

Fillers

Primer

B

TECHNICAL DATA

OPTIC EXCALIBUR

English

EXCALIBUR

SUPPLY (single-phase)*

RUN GENERATOR SUPPLY

MOTOR POWER

MAX. WORKING PRESSURE

MAX. DELIVERY

MATERIAL OUTLET

WEIGHT

LEVEL OF THE SOUND PRESSURE

LENGTH

WIDTH

HEIGHT

*Available on request with special voltages

PARTS OF THE PUMP IN CONTACT WITH THE MATERIAL Stainless Steel AISI 420B, Tefl on; Aluminium

Frame mounted

230Vac - 50Hz

minimum 4Kw asynchronous

0,75 kW

210 bar

2,1 L/min

M16 x 1,5 (M)

17 Kg

≤ 80dB(A)

(A) 450 mm

(B) 460 mm

(C) 550 mm

minimum 4Kw asynchronous

Trolley mounted

230Vac - 50Hz

0,75 kW

210 bar

2,1 L/min

M16 x 1,5 (M)

18 Kg

≤ 80dB(A)

(A) 580 mm

(B) 540 mm

(C) 995 mm

C

B

A

B

A

C

4

OPTIC EXCALIBUR

DESCRIPTION OF THE EQUIPMENT

C

5

English

7

2

6

3

2

1

4

9

8

POS.

1

2

3

4

5

7

Description

ON/OFF switch

Pressure control knob

Reduction box

Pumping group

High pressure fl exible pipe of compensation

POS.

6

7

8

9

Suction fi lter

Safety-recirculation valve

Airless manual gun

Trigger safety clamp

Description

5

English

OPTIC EXCALIBUR

TRANSPORT

D

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 fl oor 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 qualifi 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.

.

• 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.

•

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

SAFETY RULES

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

.

• 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.

• 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.

6

• 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.

OPTIC EXCALIBUR

• TIGHTEN AND CHECK ALL THE FITTINGS 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.

• 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
fl exible hose.
All the conductors near the work area must be
earthed.

Electrical safety precautions

• Check the switch is on the "OFF" position before connecting

• Never carry a plugged-in equipment.

• Disconnect the equipment before storing it and before

• Do not carry the equipment neither unplug it by pulling the

• Protect the cable from heat, oil and sharp edges.

• When the tool is used outdoors, use only an extension cable

the cable to the mains

performing any maintenance operation or replacing of ac­cessories.

electric cable.

suited for outdoor use and so marked.

Never attempt to tamper with the calibre of in­struments.

.

English

• NEVER SPRAY OVER FLAMMABLE PRODUCTS OR SOL­VENTS IN CLOSED PLACES.

• NEVER USE THE TOOLING IN PRESENCE OF POTEN­TIALLY EXPLOSIVE GAS.

Always check the product is compatible with the
materials composing the equipment (pump, spray
gun, fl exible 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.

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.

• Take care when the pumping rod is moving.
Stop the machine whenever someone is within its vicinity.

• Repairs of the electrical equipment should only be carried
out by skilled personnel, otherwise considerabledanger to
the user may result.

SETTING-UP

F

CONNECTION OF THE FLEXIBLE HOSE TO THE GUN

• Connect the high pressure fl exible hose
and to the gun

two wrenches is suggested)

NEVER use sealants on fi ttings’ threads
It is ADVISED to mount a high pressure manometer at the
pump outlet (see on page “Accessories”) to read the product
pressure

• It is recommended to use the hose provided with the standard
kit (ref. 18036).

NEVER use a damaged or a repaired fl exible hose.

(F3)

ensuring to tighten the fi ttings (the use of

.

.

(F1)

to the pump

.

(F2)

7

English

OPTIC EXCALIBUR

F2

• Check the mains voltage corresponds to the equipment’s
rating.

Voltage

F3

F1

• The supply cable is provided without plug.

Use a plug which guarantees the plant earthing.
Only a technician or a skilled person should perform the

connection of the plug to the electric cable.

CHECK ON POWER SUPPLY

Make sure that the electrical system is earthed and
complies with regulations.

8

OPTIC EXCALIBUR

Should anyone use an extension cable between
the tooling and the socket, it must have the same
characteristics as the cable supplied (minimum

diameter of the wire 2.5 mm

length of 50 mt. Higher lengths and lower diameters
can provoke excessive voltage falls and also an
anomalous working of the equipment

CONNECTION OF THE TOOLING TO THE POWER SUPPLY

• Check the switch (F4) is on the “OFF” (0) position before
connecting the cable to the mains.

• Place the pressure control knob (F5) on the “MIN” position
(turn counterclockwise).

2

) with a maximum

OFF

• Lift the suction pipe and dip it into the solvent tank.

• Ensure the gun (F3) is without nozzle.

F3

• Press the switch (F4) of the equipment “ON” (I).

• Turn clockwise the pressure control knob (F5) so as the
machine works at idle speed.

English

F4

WASHING OF THE NEW EQUIPMENT

• The equipment has already been adjusted at our factory with
light mineral oil left inside the pumping group as protection.

Therefore, wash with diluent before sucking the product.

F5

ON

F4 F5

9

OPTIC EXCALIBUR

English

• Point the gun (F6) into a container (F7) keeping the trigger
pressed (so as to drain the oil inside) till a clean solvent comes
out. Now, release the trigger.

F6

F7

• Remove the suction pipe and take away the solvent tank.

• Point the gun into the solvent tank and press the trigger so
as to recover the residual solvent.

• As the pump idles, press the “OFF” (0) switch to stop the
tooling.

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.

WORKING

G

START OF THE PAINTING OPERATIONS

• Use the tooling after performing all the SETTING UP ope­rations above described.

• Dip the suction pipe (G1) into the product tank.

G4

G1

Absolutely avoid to spray solvents indoors. In
addition, it is recommended to keep away from
the pump in order to avoid the contact between
the solvent fumes and the electric motor.

• Now the machine is ready. Should you use water paints,
besides the solvent wash, a wash with soapy and then clean
water is suggested.

• Insert the gun trigger lock and assemble the nozzle.

PREPARATION OF THE PAINT

• Make sure the product is suitable to be used with a spray
gun.

• Mix and fi lter the product before using it. For fi ltration, use

CLOSE-MESH (ref. 214) and LARGE-MESH (ref.215) LA­RIUS METEX braids.

Delivery pipe

• Open the recirculating-safety valve (G2) (turn clockwise so
as the pin slides on the cam track).

G2

Make sure the product to be used is compatible
with the materials employed for manufacturing the
equipment (stainless steel and aluminium).
Because of that, please contact the supplier of the
product.

10

OPTIC EXCALIBUR

• Press the switch “ON” (I) of the equipment and turn a little
the pressure control knob clockwise (G3), so as the machine
works at the idle speed.

G3

SPRAY ADJUSTMENT

• Slowly turn clockwise the pressure control knob to reach the
pressure value in order to ensure a good atomization of the
product.

• An irregular and marked spray on the sides indicates a low
working pressure. On the contrary, a too high pressure causes
a high fog (“overspray”) and waste of product.

• In order to avoid overthickness of paint, let the gun advance
sideways (right-left) when spraying.

• Always paint with regular parallel bands coats.

• Keep a safety and constant distance between the gun 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 cause serious
injuries.
In case of injuries caused by the gun casting, seek
immediate medical advice specifying the type of
the product injected.

English

• Make sure the product recycles from the return tube (G4).

• Close the recirculating-safety valve (G5) (turn clockwise till
the valve has released).

G5

• Now the machine carries on sucking the product till the fl exible
hose is full, up to the gun.

Then it will stop automatically.

Recirculating-safety valve: when working at the
maximum pressure available, releasing the gun
trigger sudden increases of pressure can occur.
In this case, the recirculating-safety valve opens
automatically eliminating part of the product from
the recirculating tube.
Then it closes so as to go back to the fi rst working
conditions.

CLEANING AT THE END

H

OF THE WORK

• Reduce pressure to the minimum (turn counterclockwise the
pressure control knob (H1) ).

• Press the switch (H2) placed on the box of the electric motor,
to stop the equipment.

11

-

OPTIC EXCALIBUR

• Lift the suction pipe and replace the product tank with that
of the solvent (ensure it is compatible with the product being
used).

English

H1

OFF

H2

• Open the recirculating-safety valve (H3) to release the pressure
in the circuit.

• Unscrew the gun nozzle (do not forget to clean it with sol-
vent).

• Press the switch (H2) ON and turn a little the pressure

control knob (H1) clockwise so as the machine works till
the motor starts.

• Make sure the solvent recycles the washing fl uid from the
return tube.

• Close the recirculating-safety valve (H3).

• Point the gun (H4) into the product tank (H5) and, keeping
the trigger pressed, release the remaining product till a clean
solvent comes out. Now, release the trigger.

H4

H5

H3

H3H3

OpenClose

• Lift again the suction pipe and remove the solvent tank.

• Now point the gun into the solvent tank and press the trigger
so as to recover the residual solvent.

• As the pump starts idling, press the switch OFF (0) to

stop the equipment.

• In case of long storage, we recommend you to suck and to
leave light mineral oil inside the pumping group and the fl exible
hose.

Follow the washing procedure before using again
the equipment.

12

OPTIC EXCALIBUR

I

ROUTINE MAINTENANCE

English

CHECK ON THE PACKING NUT

Daily check the packing nut is tight in order to avoid wastes but

not excessively to prevent the piston from seizing and the
gaskets from wearing.

• For tightening, use the wrench supplied (ref. 11503).

Ref. 11503

Dowel

ALWAYS DISCONNECT THE POWER SUPPLY
AND RELEASE THE PRESSURE IN THE PUMPING
GROUP (open the drain valve) BEFORE TIGHTE-
NING THE PACKING NUT

• Use the lubricant supplied (ref. 16325) to allow an easy sliding
of the piston inside the gasket group.

Daily top up the packing nut.

Ref. 16325

.

Oil ring

WARNING PLATE

J

Minimum power available: 4 kW single-phase, asynchronous

Apparecchi per verniciatura

ATTENZIONE

UTILIZZARE GRUPPI ELETTROGENI

CON ALTERNATORE ASINCRONO

http: www.larius.com

Paint spraying units

WARNING

USE POWER UNITS WITH

ASYNCHRONOUS ALTERNATOR

e-mail [e-mail]

13

OPTIC EXCALIBUR

K

PROBLEMS AND SOLUTIONS

English

Problem

• The equipment does not start

• The equipment does not suck the

product

Cause

• Lack of voltage;

• Considerable drops in mains voltage;

• On/Off switch disconnected;

• Breakdown of pressure transmitter;

•

Breakdown of motor electric control box;

• The line of material coming out of the
pump is already under pressure;

• The product is solidifi ed inside the
pump;

• Suction fi lter clogged;

• Suction ilter too fi ne;

• The equipment sucks air;

• Check the correct connection to the

• Check the extension cable;

• Ensure the On/Off switch is on the

• Verify and replace it, if necessary;

• Verify and replace it, if necessary;

• Open the drain valve to release

• Open the drain valve to release

• Clean or replace it;

• Replace it with a larger-mesh fi lter

• Check the suction pipe;

Solution

power supply;

“on” position and turn clockwise the
pressure control knob;

pressure in the circuit;

pressure in the circuit and stop the
machine. Disassemble the pumping
group and the pressure transmitter
and clean;

(with very dense products, remove
the fi lter);

• The equipment sucks 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

• The atomization is imperfect

•

When releasing the trigger of the
gun, the equipment does not stop
(the motor runs slowly and the

piston rod keeps on going up and
down)

• Lack of product;

• The equipment sucks air;

• The recirculating-safety valve is
open;

• The gaskets of the pumping group are
worn;

• Suction or delivery val ve dirty;

• Nozzle too big or worn;

• The product is too dense;

• The fi lter of the gun-butt is too fi ne;

• The nozzle is partially clogged;

• The product is too dense;

• The fi lter of the gun-butt is too fi ne;

• The nozzle is worn;

• The gaskets of the pumping group are
worn;

• Suction or delivery val ve dirty;

• Recirculating-safety valve defective;

• Add the product;

• Check the suction pipe;

• Close the recirculating-safety val­ve;

• Replace the gaskets;

• Disassemble the pumping group;

• Replace it with a smaller one;

• Dilute the product, if possible;

• Replace it with a larger-mesh fi lter;

• Clean or replace it;

• Dilute the product, if possible;

• Replace it with a larger-mesh fi lter;

• Replace it;

• Replace the gaskets;

• Disassemble the pumping group and
clean;

• Verify and replace it, if necessary;

Always close the air compressed supply and unload the plant pressure before performing any check or replace­ment of pump parts (see "correct procedure of decompression").

14

OPTIC EXCALIBUR

L CORRECT PROCEDURE OF

DECOMPRESSION

• Insert the gun clamp (L1).

L1

Clamp inserted

Clamp released

• Release the gun clamp (L1), point the gun into the tank of

• Move the switch (L2) to the OFF position to stop the equip­ment.

• Open the recirculating-safety valve (L4) to release the residual

English

L3

the product and press the trigger to release pressure. At the
end of the operation, insert the gun clamp.

pressure always clockwise.

L2

OFF

L4

WARNING :

If the equipment is still under pressure after per­forming the operations above described because
of the nozzle or the fl exible hose clogged, proceed
as follows:

• Loosen very slowly the gun nozzle.

• Release the clamp.

• Point the gun into the container of the product
and press the trigger to release pressure.

• Loosen very slowly the fi tting of connection
from the fl exible hose to the gun

• Clean or replace the fl exible hose and the
nozzle.

.

• Disconnect the power supply cable (L3).

15

OPTIC EXCALIBUR

REPLACING THE GASKET KIT

M

AND SETTING THE HYDRAU­LIC PRESSURE SWITCH

English

Release the pressure in the hydraulic circuit by
turning the knob on the pressure switch (M1) as
far as possible (turn anticlockwise).

• Drain the liquid that is still pressurised into the product collec­tion container (M2) using the gun (M3) until it is completely
decompressed (the reading on the pressure gauge must be
0 bar);

-

M1

The ring nut (M5) will be used as a point of reference
for subsequent assembly and setting.

M5
M6

M3

M2

• Open the recirculating-safety valve (M4) by turning it clockwise
(make a 1/2 turn and put the knob in the raised position);

• Use a marking pen to mark the position of the ring nut (M5)
on the threaded section (M6);

Reference mark

M4

16

OPTIC EXCALIBUR

M4M4

OpenClose

• Loosen the ring nut (M5) using a 30 mm spanner (M7). The
ring nut (M5) must only be loosened enough to allow disas­sembly;

• Unscrew the entire pressure switch unit (M8);

Ref. 11955

d

c

Ref. 18554

b

Ref. 18755

a

Ref. 18553

REFITTING AND SETTING PROCEDURE

• While the unit is still disassembled turn the setting knob (M1)
clockwise to tighten it, until it is at the end of its thread;

M1

English

M5 M7

M8

• Check gaskets (a), (b), (c) and (d), and replace if necessary.
Grease the gaskets using Vaseline;

• Refi t the unit (M8) in its original position;

The ring nut (M5) must be in the position marked
before it was disassembled.

M5

Reference mark

17

English

OPTIC EXCALIBUR

• Complete the operating procedure as described in paragraph
“G” of this manual;

• Wait for the machine to reach maximum pressure and stop.
Use the pistol to spray a few bursts into the paint container
and then check the reading on the pressure gauge;

The pressure gauge reading must be 200 - 210
bar max.

200

210

M12
M13

Reference mark

Value higher than 210 bar

200

YES

If the reading on the pressure is not as indicated, proceed as
follows:

Value lower than 200 bar

200

210

• Unscrew the knob (M1) by 1/2 a turn and release the pressure
in the pistol in two bursts;

• Check that the reading on the pressure gauge is correct (200
– 210 bar);

• Tighten the ring nut (M5) well, using a 30 mm spanner.

NO

210

NO

M5
M1

• Loosen the ring nut (M5) by 1/2 a turn and tighten the knob
(M1) all the way;

• Check the pressure again as described in the previous points,
and repeat the process until the correct pressure reading is
obtained (200 – 210 bar);

• Tighten the ring nut (M5) well, using a 30 mm spanner;

18

Reference mark

Pressures exceeding 210 bar compromise the
correct functioning of the machine and are of no
use as the safety valve is set to release pressures
exceeding 210 bar.

OPTIC EXCALIBUR

N REPLACEMENT OF THE PUMPING GROUP’S GASKETS

• Carry out this operation after cleaning the tooling.

Always disconnect the power supply and release
pressure before going on with the operations (follow
the "correct procedure of decompression").

• Use a 19 mm spanner to unscrew the ring nut (N1) on the
feed pipe in order to make the operation easier.

N1

N6N5

• Unscrew the fi xing ring nut (N7) to the end of the thread using
a 45 mm spanner.

N7

English

• Release the plastic covering (N2).

• Use a screwdriver (N3) to turn the motor (N4) until the piston
stem is at the bottom of its stroke and then move the con-rod
to a position in which it can be reached to remove it.

N2

N4

N3

• Unscrew the suction casing using a 32 mm spanner as illu­strated. If necessary, remove the suction pipe (N8) before
continuing with the other operations.

N8

• Remove the locking pin (N5) using pliers (N6).

19

OPTIC EXCALIBUR

• Disconnect the pumping group by unscrewing the fastening
nut (wrench 45).

• Unscrew the pumping group from the housing.

You can now work easily as the pump casing has been freed.

English

• Grip the complete pump unit (N10) in a vice (N9) (as
shown).

N10

N9

• Remove the pump unit (N13) from the foot valve (N14) as
shown.

Inspect the two parts separately.

N13

N14

• Slacken the ring nut (N11) by two full turns using the special
pin (N12)

Turn anticlockwise as shown.

• Use a 36 mm spanner to unscrew the pump unit as shown.

supplied.

N11

N12

PIT STOP MAINTENANCE

Replacement of upper and lower gaskets 25 minutes.

REPLACING THE FOOT VALVE SEALS

• Replace the Tefl on gasket (N15) located under the ball seating
(N16).

• Check that the surfaces of the ball seating (N16) and the
ball (N17) are not damaged. If necessary, replace both of
them.

• Fit them again using the component sequence shown.

20

N15

OPTIC EXCALIBUR

• Unscrew the gasket compression ring nut (N20) comple­tely.

All the gaskets in the unit must be replaced at the same

time to allow the machine to work properly.

English

N20

N17

REPLACING THE PUMP UNIT HOUSING GASKET

• Remove the piston stem (N19) from the pump unit housing
(N18) as shown.

N18

N16

• Remove the upper stainless steel female ring (N21) as
shown.

N21

N19

N21

21

English

OPTIC EXCALIBUR

• Remove the series of gaskets contained inside the pump unit
housing, as shown.

1

4

Red polyurethane

5

Upper white

polyethylene

3

2

Red polyurethane

Lower white polyethylene

• Remove the lower stainless steel male ring (N22) as
shown.

N22

Waxed leather

• Fit the new gasket kit according to the component sequence
shown in the fi gure.

22

OPTIC EXCALIBUR

Stainless steel
female ring

Upper white
polyethylene

Red polyurethane

English

Stainless steel
female ring

Upper white
polyethylene

Red polyurethane

Waxed leather

Red polyurethane

Lower white
polyethylene

Stainless steel
male ring

N23

N24

REPLACING THE PUMP UNIT STEM GASKET

• Secure the stem (N19) in a vice as shown.

Waxed leather

Red polyurethane

Lower white
polyethylene

Stainless steel
male ring

• Remove the Tefl on O-ring (N23) and replace it with a new
one (N24).

N19

23

OPTIC EXCALIBUR

• Use a 10 mm spanner to unscrew and remove the stem (N19)
as indicated.

English

• Remove the complete gasket kit (N25) from the stem (N19),
as shown, in order to replace it.

N19

Stainless steel
female ring

White polyethylene

Red polyurethane

White polyethylene

Red polyurethane

Stainless steel
male ring

N19
N25

Stainless steel
female ring

White polyethylene

Red polyurethane

White polyethylene

Red polyurethane

Stainless steel
male ring

• Fit the new gasket kit according to the component sequence
shown in the fi gure.

Check the scraper for wear (Ref. 18648).
Replace if necessary.

Scraper
Ref. 18648

24

OPTIC EXCALIBUR

• Replace the red polyurethane lipped gasket (N26) for the
valve piston.

• Refi t according to the assembly order and the alignment of
the lip (as shown).

Check the surfaces of the ball (N27) and ball seating

(N28), and replace both if damaged.

N28 N26 N27

• Insert the stem (N19) into the housing (N18) rotating it as

English

N29

you do so in order to allow it to slide more easily and to avoid
damaging the upper gaskets.

N19 N18

• Assemble the components as shown.

• Lubricate the gaskets (N29) and the stem.

Vaseline is recommended for this task.

• Lubricate the O-ring (N30) (Ref. 16126) with grease, as
shown.

Vaseline is recommended for this task.

N30

25

OPTIC EXCALIBUR

English

• Put liquid Tefl on on the fi rst two turns (N31) and (N32) to avoid
the two components coupled as shown from unscrewing.

N32

N31

• Make the piston stem (N19) fi tted previously complete a full
stroke as shown.

N19

• Use the pin (N12) supplied to tighten the gasket compression
ring nut (N11).

Close this until it is fully touching, without forcing.

• Use a 36 mm spanner to screw on the pump unit

(N10).

N10

N11

N12

CORRECT POSITIONING OF THE PUMP UNIT

Once the unit has been refi tted, proceed as follows:

• Check the position of the con rod, which should be positioned
at its lower stopping point.

• Put the entire pump unit (N10) inside the reduction cover
(N33) as shown.

26

OPTIC EXCALIBUR

• Use a gauge to measure the gap between the base of the
template and the start of the tightening groove.

N33

N10

• Screw the entire pump unit onto the front template, making
sure that the end of the stem is centred in relation to the
groove in the con rod (N34).

The reference value (see drawing) must be 18
mm.
The maximum tolerance accepted for correct ope­ration is 21 mm maximum and 16 mm minimum.

N10

18 mm

English

• Centre the two holes (con rod + stem) and insert the stopping
pin (N35) inside the con rod (N34).

• Check that the closing spring (N36) in the con rod (N34) goes
into the pin seating when closed (as shown).

N36 N35 N34

min. 16mmmax. 21mm

18mm

Reference

• Screw the entire pump unit (N10) inside the reduction cove.

27

OPTIC EXCALIBUR

English

• Once the unit has been positioned correctly, tighten the lock
nut (N37) hard against the front template.

To tighten, use a 45 mm spanner.

N37

• Close the inspection cover (N38) again.

• For correct reassembly, see the exploded diagram for the
pump unit, and invert the order used for disassembly.

N38

• Fit the suction pipe (N8) again.
Put Tefl on tape or liquid Tefl on over the threaded part (N39)

before screwing it onto the foot valve.

N8

N39

28

SPARE PARTS

SPARE PARTS

Drive assembly

O

R

page 35

Electric motor

O

S

page 36

Complete electro-hydraulic control device ref. 18639

O

O

and 18639/110
page 30

O

T

English

Accessories
page 37

Recirculating-safety valve group ref. 16400

O

Q

page 34

29

Complete pumping group

O

P

page 32

English

OPTIC EXCALIBUR

O COMPLETE ELECTRO-HYDRAULIC CONTROL DEVICE

REF. 18639 AND 18639/110

WARNING: Always indicate code and quantity for each part required.

26

27

30

30

33

3432

35

1

33

25

131415

111112

16

17

18

10

19

8

9

25

28

29

243622

212120

23

30

37

222120

7

6

2

5

4

3

OPTIC EXCALIBUR

Pos. Pos.

,

,

1

2

3

4

5

6

7

8

9

10

Code Description Code Description

18639

,

18639/110

,

18875

18580

16205

18627

18622

96206

18614

5737

4019

5933

Complete electro-hydraulic control

220V/50Hz

Complete electro-hydraulic control

110V/60Hz

Electro-hydraulic box

Filter cap

Standard fi lter sieve (60MESH)

Filter sieve support

Or in PTFE

Union

Union

Washer

Screw (x4)

Switch

19

20

21

22

23

23

24

,

25

26

27

28

29

30

16308

5379

5339

5114

18653/220

18653/110

16400

,

18871

18654

18625

32005

5726

5378

Label

Screw (x2)

Washer

Nut

Electronic card 220V 50Hz

Electronic card 110V 60Hz

Recirculating-safety complete

valve

Cable fastener

Cover

Box gasket

Washer

Screw

Screws

English

11

12

13

14

15

16

17

18

57054

18621

18867

11955

18553

18554

18755

18863

OR

Bush

Spring

Gasket

Gasket

OR

OR

Pressure switch / pressure setting device

31

32

33

34

35

36

37

9308

96028

18865

18864

18870

8108

20421

Screw for earthing

Union

Optic sensor

Optic sensor bracket

Power cable

Plug

Washer

31

English

OPTIC EXCALIBUR

P

COMPLETE PUMPING GROUP

WARNING: Always indicate code and quantity for each part required.

1

10
11

2

3

18

4

5

6

19

7

8
9

12

13

Pos.

1

2

3

4

5

6**

7

8**

9

10**

11

12

13**

14

15

16

17

Code Description

16109

16127

*

16105

**

96206

18640

16126

18642

16120

91018

18643

18641

18652

16130

18647

*

18651

**
*

18648

**

18655

Packing nut

Lock nut

Complete upper seals

Union

Sleeve

O-ring

Ball guide

Ball

Ball housing

O-ring

Foot valve

Piston rod

Ball

Spacer

Complete lower seals

Scraper ring

Complete foot valve

Red

15

14

16

17

18

19

* Complete gasket kit (upper and lower) cod. 18855
**Pumping maintenance kit cod. 40106

18649

18650

Complete sleeve

Complete piston

32

OPTIC EXCALIBUR

Steel female ring

cod. 16106

White cod. 16124

Red cod. 16104

Leather cod.16155

Red cod. 16104

White cod. 16124

Steel male ring

cod. 16108

System of assemblage

cod.
16132

English

cod.
16105

Upper seals

Steel male ring

cod. 18644

White cod. 16136

Red cod. 16114

White cod. 16136

Red cod. 16114

Steel female ring

cod. 18645

Scraper ring

cod. 18648

cod.
16133

cod.
18651

Lower seals

33

English

OPTIC EXCALIBUR

Q RECIRCULATING-SAFETY VALVE GROUP REF. 16400

WARNING: Always indicate code and quantity for each part required.

8
7

6

5
4

3

2

1

Pos.

-

1

Code Description

16400

4033

Recirculating-safety valve group

O-ring

9

10

2

3

4

5

6

7

8

9

10

16415

53007/3

16419

16420

16410

46409

16408

16405

90018

Valve housing

O-ring

Antiextrusion ring

Material rod

Spring

Bush

Dowel

Knob

Dowel

34

R DRIVE ASSEMBLY

OPTIC EXCALIBUR

26
25

1B

24
23

18
22

1

1A

21

28 27

9
8

13

6
9

13
11

19

12

10

7

10

19

15
17

16

5

14

3

4

English

2

2A

Pos. Pos.

1

1A

1B

2

2A

3

4

5

6

7

8

9

10

11

12

13

Code Description Code Description

18660/220

18660/110

18763

18639

18639/110

18650

18649

18663

18672

18680

18673

18667

18681

18665

18664

4233

Electric motor 220V 50Hz

Electric motor 110V 60Hz

Cover motor

Compl. electro-hydraulic box 220V

Compl. electro-hydraulic box 110V

Complete rod

Complete sleeve

Cover

Complete toothed gear

Complete toothed driving gear

Complete connecting rod

Cam bushing

Driving cam

Spring

Bushing

Centering pin

21 20

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

18685

18666

18674

9173

16235

37403

18790

18698

18699

95623

32005

8029

32005

7059

34009

Scraper ring

Pin for connecting rod

Control cover

Screw

Handle

Frame cap

Complete h.p. hose for connection

Frame tube - right/left

Handle

Screw

Washer

Screw

Washer

Screw

Washer

35

OPTIC EXCALIBUR

S

ELECTRIC MOTOR

WARNING: Always indicate code and quantity for each part required.

English

DISCONNECT THE POWER SUPPLY BEFORE
CHECKING OR REPLACING THE BRUSHES.

• Periodically check on the wear of the pinion (at least every
1000 working hours).

• Periodically check the perfect connection among all the
electrical components (at least every 200 working hours).

• The length of the brush contact must be higher than 9 mm
to guarantee a good working of the rotary group.

1

2

Pos.

1

1

2

24 mm*

*Length of new brush **Minimum length of the brush

Code Description

18899

18879

16047

Replace

Brush 220V 50Hz

Brush 110V 60Hz

Brush holder plug

9 mm**

36

T ACCESSORIES

OPTIC EXCALIBUR

WARNING: Always indicate code and quantity for each part required.

1

4

2

5

English

7

8

9

1011

6

3

Pos. Pos.

1

2

3

4

5

Code Description Code Description

37600

18350

37216

16602

16601

Complete jointed fi tting

Dispersion bell

Filter

Union

Dip hose

8

9

10

11

12

18095

18350

16802

18375

18609

12

13

Spring

Dispersion bell

Filter

Flexible hose

Nut

6

7

18370

18367

Assembly

Recirculation pipe

13

18608

Spring

37

English

OPTIC EXCALIBUR

5

1

34

2

Pos. Pos.

1

,

2

2

Code Description Code Description

18026

,

147

150

Delivery compensation hose length

15 mt.

High pressure manometer M16x1,5

High pressure manometer GJ 1/4"

3

4

5

38

96099

16081

16082

Intake sleeve

Union

Elbow

OPTIC EXCALIBUR

Code 11250: AT 250 1/4"
Code 11200: AT 250 M16x1,5

Code 85014: FILTER 40 MESH - Code 85012: FILTER 20 MESH
Code 37215: FILTER 40 MESH inox - Code 37216: FILTER 20 MESH inox

Code 270: FILTER 100 MESH
Code 271: FILTER 60 MESH

English

Code 16205: FILTER 60 MESH
Code 16204: FILTER 100 MESH
Code 16203: FILTER 200 MESH

PISTON GUNSTOCK FILTERS

Code 11039: Green (30M) - Code 11038: White (60M)
Code 11037: Yellow (100M) - Code 11019: Red (200M)

MX 750

MX 1000 E

MX 1100 E

Code 217550: MX 750 - Code 217560: MX 1000 E - Code 217570: MX 1100 E

39

English

FAST-CLEAN

OPTIC EXCALIBUR

FAST-CLEAN TIP

07-20
07-40
09-20
09-40
11-20
11-40
13-20
13-40
13-60
15-20
15-40
15-60
17-20
17-40
17-60
19-20
19-40

Nozzles code

19-60
21-20
21-40
21-60
23-20
23-40
23-60
25-20
25-40
25-60
27-20
27-40
27-60
27-80
29-20
29-40
29-60

29-80
31-40
31-60
31-80
33-40
33-60
33-80
39-40
39-60
39-80
43-40
43-60
43-80
51-40
51-60
51-80

SUPER FAST-CLEAN

Code 303: GASKET

Code 300: FAST-CLEAN base UE 11/16x16

SUPER FAST-CLEAN TIP

SFC07-20
SFC07-40
SFC09-20
SFC09-40
SFC11-20
SFC11-40
SFC13-20
SFC13-40
SFC13-60
SFC15-20
SFC15-40
SFC15-60
SFC17-20
SFC17-40
SFC17-60
SFC19-20
SFC19-40

Nozzles code

SFC19-60
SFC21-20
SFC21-40
SFC21-60
SFC23-20
SFC23-40
SFC23-60
SFC25-20
SFC25-40
SFC25-60
SFC27-20
SFC27-40
SFC27-60
SFC27-80
SFC29-20
SFC29-40
SFC29-60

SFC29-80
SFC31-40
SFC31-60
SFC31-80
SFC33-40
SFC33-60
SFC33-80
SFC39-40
SFC39-60
SFC39-80
SFC43-40
SFC43-60
SFC43-80
SFC51-40
SFC51-60
SFC51-80

Code 18280: GASKET

Code 18270: SUPER FAST-CLEAN base UE 11/16x16

40

OPTIC EXCALIBUR

PLA 1/4”

+ FAST-CLEAN

REVERSIBLE TIP INCLUDED

Code 11420-11425-11430: cm 130-180-240

PLA M16x1,5

+ FAST-CLEAN REVERSIBLE TIP INCLUDED

Code 11421-11426-11431: cm 130-180-240

PAINT ROLLER TELESCOPIC

Code 16988: Roller cover

for rough surfaces

Code 16997: Roller cover for

smooth surfaces

Code 16998: Roller cover for

very smooth surfaces

Code 16999: Roller cover for

semi-rough surfaces

Code 16780: Extension 120 - 195 cm

English

Code 18631: HANDLE

Code 91047: WASHER

FIRM WHEEL

(quantity x 2)

Code 37218: WHEEL (quantity x 2)

Code 18765: HANDLE

Code 7059: SCREW (quantity x 3)
Code 34009: WASHER

Code 18632: FRAME

Code 37403: CAP (quantity x 2)

41

English

OPTIC EXCALIBUR

U VERSIONS

Ref. 18600: FRAME MOUNTED WITHOUT SPRAYING ACCES-

SORIES

Ref. 18601: TROLLEY MOUNTED WITHOUT SPRAYING

ACCESSORIES

Ref. 18602: FRAME MOUNTED WITH SPRAYING ACCESSO-

RIES

Ref. 18603: TROLLEY MOUNTED WITH SPRAYING ACCES-

SORIES

42

Ref. 18610: FRAME MOUNTED WITH GRAVITY HOPPER
Ref. 18611: FRAME MOUNTED WITH GRAVITY HOPPER AND

SPRAYING ACCESSORIES

Ref. 18610: TROLLEY MOUNTED WITH GRAVITY HOPPER
Ref. 18611: TROLLEY MOUNTED WITH GRAVITY HOPPER

AND SPRAYING ACCESSORIES

Due to a constant product improvement programme, the factory reserves the right to modify

technical details mentioned in this manual without prior notice.

AIRLESS PISTON PUMPS

THOR Ref. 20705

TAURUS Ref. 39400

ZEFIRO Ref. 16910

MANUFACTURER:

23801 CALOLZIOCORTE - LECCO - ITALY - Via Stoppani, 21
Tel. [phone] - Fax [phone]
E-mail: [e-mail] - Internet http://www.larius.com

DIRECT LINE

CUSTOMERS TECHNICAL SERVICE

Tel. [phone]

Fax [phone]