Larius Excalibur Liner Operating manual

OPERATING AND MAINTENANCE INSTRUCTION
ENGLISH
OPERATING AND MAINTENANCE INSTRUCTION
PAINT SPRAYING EQUIPMENT
Ed. 013 10 - 14
STREET MARKING
WITH PISTON PUMP

Due to a constant product improvement programme, the factory reserves the right to modify technical
details mentioned in this manual without prior notice.
This manual is to be considered as an English language translation of the original manual in Italian.
The manufacturer shall bear no responsibility for any damages or inconveniences that may arise due
to the incorrect translation of the instructions contained within the original manual in Italian.

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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.
STREET MARKING WITH PISTON PUMP
INTRODUCTION .................................................. p.1
WARNINGS .......................................................... p.2
WORKING PRINCIPLE ........................................ p.3
TECHNICAL DATA ................................................ p.5
DESCRIPTION OF THE EQUIPMENT ................. p.7
TRANSPORT AND UNPACKING ......................... p.9
SAFETY RULES ................................................... p.10
Conditions of guarantee ....................................... p.10
SETTING-UP ........................................................ p.10
Flexible re-circulation tube connection ............. p.10
Pump unit flexible tube connection .................. p.10
Flexible tube and spray gun connection ........... p.11
Starting the motor ............................................ p.11
Washing of the new equipment ........................ p.12
Preparing the produc ....................................... p.14
REGULATIONS ....................................................... p.14
Adjusting the guns support arm ............................ p.14
WORKING ............................................................ p.15
Set up procedure.............................................. p.15
Adjustment pump unit speed............................ p.15
Spray adjustment ............................................. p.15
CLEANING AT THE END OF THE WORK ........... p.16
GENERAL MAINTENANCE .....................................p.17
Daily .........................................................................p.17
Periodically ...............................................................p.17
ROUTINE MAINTENANCE ......................................p.17
Check on the packing nut.................................. p.17
PROBLEMS AND SOLUTIONS ........................... p.18
CORRECT PROCEDURE OF
DECOMPRESSION .............................................. p.19
REPLACEMENT OF THE PUMPING
GROUP’S GASKETSE ......................................... p.20
Pit stop maintenance........................................ p.21
Replacing the foot valve seals .......................... p.21
Replacing the pump unit housing gasket ......... p.22
Replacing the pump unit stem gasket .............. p.24
Correct positioning of the pump unit ................ p.27
SPARE PARTS
COMPLETE PUMPING GROUP ............................ p.31
COMPLETE STEERING UNIT REF.4876 ............ p.33
COMPLETE FRAME REF.4874 .............................. p.34
COMPLETE EXCALIBUR LINER REF.4877 ........ p.36
COMPLETE 50L TANK REF.4895 ........................ p.38
COMPLETE 20L TANK REF.4890 ........................ p.39
COMPLETE BOX REF.4896 ................................. p.40
COMPLETE BOX TRASFORMER REF.4845 ............... p.41
RE-CIRCULATION UNIT COMPLETE WITH COVER RIF.4893 . p.42
ACCESSORIES .................................................... p.43
A
B
C
D
E
F
G
H
I
J
K
M
N
O
P
Q
R
S
T
U
L
V
W
Z

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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 influence 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 care-
fully.
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 important recommendations about disposal and recycling process of products in accordance with the environmental
regulations.
WARNINGS 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 a fire 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 inflammable fumes.
If electrical shocks or discharges are encountered the operation being carried out using the equipment must be stopped immedia-
tely.
Keep a fire extinguisher at hand in the immediate vicinity of the work area.
It indicates wound and finger 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 fingers in the spray gun nozzle.
Once work has been completed, before carrying out any maintenance, complete the decompression procedure explained in this
manual.
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.

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AWORKING PRINCIPLE
The LARIUS EXCALIBUR unit is defined “piston pump”.
An piston pump is used for high pressure painting without air (from
this process derives the term ”airless”).
The internal combustion engine, mounted upon the undercarriage,
powers the alternative piston pump.
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
sent to the gun through the flexible hose.
A electronic device, allows to adjust and control the pressure of
the material coming out of the pump.
A safety valve avoiding overpressure, guarantees the total reliability
of the equipment.
The control zone allows for the possibility of:
• Activating the dispensing spray gun;
• Enabling or disabling the frontal steering wheel;
• Adjust the pressure of work;
This type of equipment is capable of painting one line at a time
in a single color.
The line can be either solid or dotted, based on the working
requirements.
SOLID LINE
1 2
BROKEN LINE
EXCALIBUR LINER is ideal for medium marking and mainte-
nance jobs.
Use water or non-refractive solvent filtered paint
specifically designed for airless application.
EXCALIBUR LINER allows for the marking and maintaining of all
types lines on highways, freeways, pedestrian crossings, parking
lots and squares, as well as every horizontal marking required
by the highway code.
Airless marking has numerous proven benefits with respect to
line-markers with pressurised tanks, which have been rendered
obsolete by airless-technology line markers.
Airless line-marking guarantees:
• Decreased Environmental Impact;
• Decreased drying time.
This line-marker utilises non-premixed paints. This allows it to
achieve about 30 % more yield with respect to standard line-
markers. Every model is also an airless spray gun which can be
used in the construction/decoration sector together with washable
products, enamels, breathable paints and flooring resins.
A vast assortment of accessories is available to satisfy every
customer demand.
The paint dries quickly and the line is defined in a uniform manner
with a single coat. The airless function requires the use of filtered
paint which is specifically designed for airless application. This
means that the paint is homogeneous, of a smooth and uniform
consistency and will not form crusts, nor will it become gelatinous
or thick. With this airless line-marker, the paint adheres firmly to
all types of pavement, with optimal visibility, and is resistance to
wear caused both by traffic as well as atmospheric agents.
In the LARIUS models, the paint canister can be loaded directly
upon the undercarriage or else poured into the non-stick, 50 L
tank. In every case, cleaning, maintenance and colour change
operations are facilitated.
The line-marker is equipped with pivoting frontal wheel which even
increases the agility of the larger models.
High yield, high efficiency, high versatility.

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English
Version 20L
Version 50L

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B
C
A
BTECHNICAL DATA
EXCALIBUR LINER
Internal combustion engine power
Max. Delivery
Max. pressure
Airless spray-gun
Sizes of the furnished nozzles
Tank
Colours
Manual line-marking
Applications
Multi-use sprayer
Weight
Lenght
Height
Width
4 kW ÷ 5 kW (upon availability)
2 l/min
210 bar
AT 250
11x40 - 13x40 - 15x40
50l - 20l
1
series
Medium road-marking and maintenance
series
105 kg
(A) 160 cm
(B) 110 cm
(C) 90 cm

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Standard equipment Accessories
N°1 Filter with pressure gauge
N°1 High pressure tube 3/16”, 10 m Ref. 35017
N°1 Recirculation tube
N°1 50 L gravity tank + closure valve and
extractible filter
N°1 Manual airless spray-gun AT250
N°1 Super fast clean base
N°1 Super fast clean nozzle 11-40
N°1 Super fast clean nozzle 13-40
N°1 Super fast clean nozzle 15-40
N°1 Tool pack
Ref. 4502
Bead distributor for
automatic spray-guns
Ref.4038
Laser pointer kit
Ref. 4506
Working spotlight
SECTORS OF USE
• External or underground parking lots (schools, hotels, airports,
supermarkets, train stations, subway stations, ports);
• External public areas;
• Industrial and exhibition building zones;
• Freeway service areas and service stations;
• Pedestrian median lines, intersections, bicycle tracks, reserved
lanes;
• Internal and external logistic area markings;
• Playing fields.
Nozzle height
from ground
10 cm
15 cm
20 cm
25 cm
30 cm
35 cm
~ 3 cm
~ 6 cm
~ 10 cm
20-degree angle
Line Width
~ 5 cm
~ 7 cm
~ 8 cm
~ 10 cm
~ 12 cm
40-degree angle
Line Width
60-degree angle
Line Width
~ 10 cm
~ 13 cm
~ 16 cm
~ 20 cm
~ 23 cm
~ 26 cm
NOZZLES POSITION TABLE

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3
4
9
2
1
3
5
4
6
8
6
7
9
CDESCRIPTION OF THE EQUIPMENT
POS.
1
2
3
4
5
lt. 50 tank
Recirculation tube
Suction intake valve
Product supply tube
Pumping group
Description POS. Description
Gun AT250
Pivoting wheel
Gasoline tank
Brake
6
7
8
9

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10 13
14
10
13
14
12
11
15
16
POS.
10
11
12
13
Manometer
Potentiometer for adjusting the operating pressure
ON/OFF switch
Safety-recirculation valve
Description POS. Description
Plug
Directional wheel lock/release lever
Gun operating lever
14
15
16

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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 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 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 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 instruc-
tions 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 PRO-
PERLY.
• 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 MEDI-
CAL 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 EQUIP-
MENT.
• NEVER MODIFY ANY PART IN THE EQUIPMENT. CHECK
REGULARLY THE COMPONENTS OF THE SYSTEM. RE-
PLACE THE PARTS DAMAGED OR WORN.
• TIGHTEN AND CHECK ALL THE FITTINGS FOR CONNEC-
TION BETWEEN PUMP, FLEXIBLE HOSE AND SPRAY GUN
BEFORE USING THE EQUIPMENT.
• ALWAYS USE THE FLEXIBLE HOSE SUPPLIED WITH STAN-
DARD 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.

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F2 F1
F4
F3
FSETTING-UP
TUBE CONNECTIONS
Flexible re-circulation tube connection
• Connect the flexible re-circulation tube (F1) to the connector
(F2) ensuring to tighten the fittings (the use of two wrenches
is suggested) .
• NEVER SPRAY OVER FLAMMABLE PRODUCTS OR SOL-
VENTS IN CLOSED PLACES.
• NEVER USE THE TOOLING IN PRESENCE OF POTEN-
TIALLY EXPLOSIVE GAS.
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 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 sol-
vents 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 PRO-
TECTION GLOVES, GOGGLES AND PROPER
FACE SHIELDS.
TAKE PROPER SAFETY MEASURES FOR THE
PROTECTION OF HEARING IN CASE OF WORK
NEAR THE PLANT.
Pump unit flexible tube connection
• Connect the pump unit’s flexible tube (F3) to the connector
(F4) ensuring to tighten the fittings (the use of two wrenches
is suggested) .
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 instruc-
tions provided.
CONDITIONS OF GUARANTEE

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English
FUEL
F6
F5
F7
F8
F9
F10
• It is recommended to use the hose provided with the standard
kit (ref. 18036).
NEVER use a damaged or a repaired flexible hose.
NEVER use sealants on fittings’ threads .
Flexible tube and spray gun connection
• Connect the flexible tube (F5) to the connector (F6) ensuring to
tighten the fittings (the use of two wrenches is suggested) .
STARTING THE MOTOR
In order to start the motor, proceed as follows:
• Fill the gasoline tank (F7) .
• Open the fuel tap (F8) and position it to “ON”.
• Put the switch (F9) ON (I) for the equipment.
• Bring the accelerator lever (F10) to about 1/2 of its run.

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English
F13
F14
F11
F12
F12
F15
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.
• Lift the suction pipe and dip it into the solvent tank.
• Clean the inside of the tank with a brush.
• Open the product output tap (F14).
• Pull the lever (F11) for the first cold start up (in position
CHOKE).
• Pull the start up cord (F12).
• Start the motor following the indications provided in the
chapter “STARTING THE MOTOR”.
• Press the switch (F15) of the equipment “ON” (I).
• Ensure the gun (F13) is without nozzle.

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English
PRESSIONE
PRESSURE
MIN MAX
MIN MAX
PRESSIONE
PRESSURE
F18
F17
Circulation
and washing
F17
Circulation
and washing
F17
F17
F16
• Visually check that the wash fluid starts to re-circulate within
the tank (F18).
• Turn the pressure adjustment handle (F17) clockwise to stop
the pump.
• Closed the recirculating-safety valve (F16).
• Turn pressure regulating knob (F17) clockwise a little so that
the machine idles.
• Open the recirculating-safety valve (F16).
• Turn the pressure setting knob (F17) clockwise to the “CIR-
CULATION & WASHING” position (drop symbol).
OPEN
It re-circulates back into
the tank without spraying
CLOSED
It sprays out of the spray
gun
F16F16

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English
F18
G2
G3
G1
F13
F19
Repeat the same operations with clean solvent if
necessary.
• After having completed the wash operations, bring the han-
dle to its MIN position (F17) and point the gun (F13) into a
collection container (F19) and press the trigger to release
the residual pressure. Release the trigger when finished.
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 motor.
• Shut off the equipment by turning the switch to its OFF position
“(O)”.
• Stop the combustion engine.
• At this point the machine is ready. If water-based paints are
to be used, after the wash with solvent wash the tank again
with soap and water, then rinse with clean water (repeating
the previously described procedures).
• Insert the manual gun trigger lock and assemble the noz-
zle.
• Mix and filter the product before using it. For filtration
use CLOSE-MESH (rif. 214) and LARGE-MESH (rif. 215)
LARIUS METEX braids.
PRODUCT PREPARATION
MAKE SURE THE PRODUCT IS SUITABLE TO BE
USED WITH A SPRAY GUN.
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 .
Never use products containing halogen hydrocarbons (as methy-
lene chloride). If these products come into contact with aluminium
parts of the equipment, can provoke dangerous chemical reactions
with risk of explosion .
• Fill the tank (F18) with the paint.
• Remove the gun (F13) from its support and point it into a
container (F19). Hold the trigger down (to perform the cle-
aning) until clean solvent comes out, or else until all of the
wash fluid has been expelled from the tank.
GREGULATIONS
ADJUSTING THE GUN SUPPORT ARM
In order to adjust the position of the spray gun (G1) use the
knobs (G2-G3).

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H1
H2
H4
H3
H5
HWORKING
SETUP PROCEDURE
• Use the tooling after performing all the SETTING UP opera-
tions above described.
• Check that there is enough unleaded petrol.
• Open the product output tap (H1).
• Start the motor following the indications provided in the
chapter “STARTING THE MOTOR”.
• Make sure that the re-circulation/safety valve (H2) is closed
(spray enabled).
ADJUSTING PUMP UNIT SPEED
• Move the motor acceleration lever (H4) gently to increase or
decrease the speed of the pump.
During the painting operation it is normally recommended to
maintain the position of the accelerator lever (H4) at about 3/4
of its maximum run.
• Press the switch (H3) of the equipment “ON” (I).
• Turn the pressure adjustment handle clockwise until the
desired setting has been reached.
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 first working
conditions.
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.
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.
• Pull the lever on the right (H5) to activate the spray gun and
begin working, advancing the machine in a continuous man-
ner.

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I3
I2
I3
I1
I4
I5
I6
• Release the residual pressure by holding down the trigger of
the gun and pointing it into a container.
• Eliminate the paint remaining within the tank (I2) by placing
the re-circulation tube (I3) into a container.
• Open the recirculating-safety valve (I4).
Follow the washing procedure before using again
the equipment.
• Empty all of the wash fluid from the tank and turn off the
equipment.
• Turn the pressure adjustment handle (I1) to minimum (pump
stopped).
• Shut off the motor.
• In case of long storage, we recommend you to suck and
to leave light mineral oil inside the pumping group and the
flexible hose.
• Turn the pressure adjustment (I1) handle slightly clockwise
to make the machine function at minimum pressure (pump
activated) , until the tank has been completely emptied then
shut off the pump by bringing the handle (I1) to its minimum
position.
• Fill the tank (I2) with wash fluid.
• Clean the walls of the tank with a brush.
• Turn the pressure adjustment (I1) handle slightly clockwise
to make the machine function at minimum pressure (pump
activated).
• Make sure the re-circulation tube (I3) is inserted into a con-
tainer and wait for clean wash fluid to come out of it.
• Turn the pressure adjustment handle (I1) to minimum (pump
stopped).
• Place the re-circulation tube back into the tank.
• Keep the gun’s trigger pressed to release any residual pres-
sure.
• Remove the nozzle from the gun and wash it separately.
• Closed the recirculating-safety valve
• Turn the pressure adjustment handle (I1) slightly clockwise
to make the machine function at minimum pressure (pump
activated).
• Point the manual gun (I5) into a container (I6), drain the
residual paint and wait for the wash fluid to come out clean
the entire spraying circuit.
I
CLEANING AT THE END WORK
• Reduce pressure to the minimum (turn counterclockwise the
pressure control knob (I1) ).

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English
Oil ring
Ref. 16325
K1
GENERAL MAINTENANCE
DAILY
• Clean the filters;
• Clean the nozzles;
• Clean all the varnish circuit with a specific product;
• Check the fuel motor (see the maintenance table).
PERIODICALLY
• Check the pumping gaskets draft (if the product draws, replace
gaskets);
• Clean the mobile parts from the varnish deposits (spray guns,
etc.);
• Check the gun cables tightening, the wheel block;
• Check that the tubes and all the fittings are correctly locked.
JCHECK ON THE PACKING NUT
D ischarge the pressure in the pump unit (open
the discharge valve) before carrying out any
maintenance.
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.
• Use the lubricant (K1) supplied (ref. 16325) to allow an easy
sliding of the piston inside the gasket group.
Daily top up the packing nut.
At the start of each working day check that the
ring nut is full of hydraulic oil (Ref. 16325). This oil
makes it easier for the piston to slide and prevents
any material that escapes via the seal gasket drying
when the equipment is stopped.
ROUTINE MAINTENANCE
Always check that there is oil in the motor.
K
Check the motor oil every 100 working hours via the relevant
measuring caps positioned on the bottom of the petrol motor.
Top up if necessary.

18
EXCALIBUR LINER
English
Ref. 20144
Closing/opening
pin
• For tightening, use the wrench supplied (ref. 11503).
LPROBLEMS AND SOLUTIONS
Solution
Cause
Problem
• The equipment does not start
• The equipment does not suck the
product
• 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)
• On/Off switch disconnected;
• Lack of gasoline;
•
Breakdown of motor electric control box;
• The line of material coming out of the
pump is already under pressure;
• The product is solidified inside the
pump;
• Suction filter clogged;
• Suction ilter too fine;
• Product output valve closed;
• The equipment sucks air;
• Lack of product;
• The equipment sucks air;
• The recirculating-safety valve is open;
• The gaskets of the pumping group are
worn;
• Suction or delivery valve dirty;
• Nozzle too big or worn;
• The product is too dense;
• The filter of the gun-butt is too fine;
• The nozzle is partially clogged;
• The product is too dense;
• The filter of the gun-butt is too fine;
• The nozzle is worn;
• The gaskets of the pumping group are
worn;
• Suction or delivery valve dirty;
• Recirculating-safety valve defective.
• Ensure the On/Off switch is on the
“on” position and turn clockwise the
pressure control knob;
• Add gasoline;
• Verify and replace it, if necessary;
• Open the drain valve to release
pressure in the circuit;
• Open the drain valve to release
pressure in the circuit and stop the
machine. Disassemble the pumping
group and the pressure transmitter
and clean;
• Clean or replace it;
• Replace it with a larger-mesh filter
(with very dense products, remove
the filter);
• Open the product output valve;
• Check the suction pipe;
• 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 filter;
• Clean or replace it;
• Dilute the product, if possible;
• Replace it with a larger-mesh filter;
• Replace it;
• Replace the gaskets;
• Disassemble the pumping group and
clean;
• Verify and replace it, if necessary.
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.
Oil ring