Larius Giotto Manual

OPERATING AND MAINTENANCE INSTRUCTIONS
ENGLISH
OPERATING AND MAINTENANCE INSTRUCTIONS
PAINTING EQUIPMENT
Ed. 002 06 - 11

1
GIOTTO
English
ELECTRIC DIAPHRAGM PUMP
ELECTRIC DIAPHRAGM PUMP
WE ADVISE THE USE OF THIS EQUIPMENT ONLY BY PROFESSIONAL OPERATORS.
ONLY USE THIS MACHINE FOR USAGE SPECIFICALLY MENTIONED IN THIS MANUAL.
Thank you for choosing a LARIUS S.R.L. product. As well as the product purchased,
you will receive a range of support services enabling you to achieve the results desired,
quickly and professionally.
Read this operator’s manual
carefully before using the
equipment. An improper use
of this machine can cause
injuries to people or things.
It indicates an
accident risk or
serious damage
to equipment if
this warning is not
followed.
It indicates a re
or explosion risk if
this warning is not
followed.
It is obligatory to wear suitable clothing as gloves,
goggles and face shield.
It indicates important
recommendations
about disposal
andrecycling
process of products
in accordance with
the environmental
regulations.
O
P
WARNING PLATE ...............................................p.10
PROBLEMS AND SOLUTIONS ..........................p.11
CORRECT PROCEDURE OF DECOMPRESSION ........ p.12
SUCTION SYSTEM ............................................p.13
COMPLETE HYDRAULIC BODY ........................p.14
GIOTTO PETROL – GIOTTO LINER ...................p.16
COMPLETE COLOUR BODY .............................p.18
MOTOR ..............................................................p.20
TROLLEY ............................................................p.21
ACCESSORIES ...................................................p.22
Q
R
M
N
O
NTRODUCTION ..................................................p.1
WORKING PRINCIPLE .......................................p.2
TECHNICAL DATA .............................................p.2
DESCRIPTION OF THE EQUIPMENT ................p.3
TRANSPORT AND UNPACKING ........................p.4
SAFETY RULES ..................................................p.4
SETTING-UP ......................................................p.5
WORKING ..........................................................p.8
CLEANING AT THE END OF THE WORK ..........p.9
ROUTINE MAINTENANCE .................................p.10
A
B
C
D
E
F
G
H
I
L
S
T
U

2
GIOTTO
English
A
B
C
B
A
*Available on request with special voltages
PARTS OF THE PUMP IN CONTACT WITH THE MATERIAL Stainless Steel AISI 420B, Teon, Aluminium.
WORKING PRINCIPLE
The Larius Giotto unit is defined as an “electric
diaphragm pump”. An electric diaphragm pump is used
for high pressure paint spraying without air (known as
“airless”).
The pump is powered by an electric (internal combustion)
motor coupled with a cam shaft. The shaft acts on the
hydraulic piston as it pumps oil from the hydraulic case
GIOTTO
SUPPLY (
single-phase, Three-phase internal com-
bustion supply, petrol-diesel )*
MOTOR POWER Mono-threephase
Internal combustion
MAX. WORKING PRESSURE
MAX. DELIVERY
MATERIAL OUTLET
WEIGHT
LEVEL OF THE SOUND PRESSURE
LENGTH
WIDTH
HEIGHT
220V 50Hz / 110V 60Hz
380V 50Hz
2,2 kW
4,5 kW
210 bar
8 L/min
M16 x 1,5 (M)
50 Kg
≤ 75dB(A)
(A) 1000 mm
(B) 600 mm
(C) 850 mm
and sends the suction diaphragm into fibrillation. When
the diaphragm moves, it creates a vacuum. The product is
sucked up, pushed towards the pump outlet and sent to
the guns through the flexible hose . A hydraulic valve on
the hydraulic case head allows setting and checking the
pressure of the paint product at the pump outlet. A second
hydraulic safety valve to avoid over-pressure, ensures total
equipment reliability.

3
GIOTTO
English
C
2 3 4 10
POS.
1
2
3
4
5
6
POS.
7
8
9
10
11
12
DESCRIPTION OF THE EQUIPMENT
Carriage
Electric motor
High pressure manometer
Setting valve
Hydraulic oil lling cap
Hydraulic body
Description
Complete colour body
Suction and recirculation tube
High pressure feed tube
LARIUS AT 300 gun
Fast clean
Tools box
Description
1
2
3
4
5
6
11
12
8
7
9
10

4
GIOTTO
English
D
E
TRANSPORT AND UNPA-
CKING
• 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 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 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.
• The manufacturer will not be responsible for the unlo-
ading operations and transport to the workplace of the
machine.
• Check the packing is undamaged on receipt of the equi-
pment. Unpack the machine and verify if there has been
any damage due to transportation.
In case of damage, call immediately LARIUS and the
Shipping Agent. All the notices about possible damage
or anomalies must arrive timely within 8 days at least
from the date of receipt of the plant through Registered
Letter to the Shipping Agent and to LARIUS.
• The disposal of packaging materials is a customer’s
competence and must be performed in accordance with
the regulations in force in the country where the plant is
installed and used.It is nevertheless sound practice to
recycle packaging materials in an environment-friendly
manner as much as possible.
SAFETY RULES
• THE EMPLOYER SHALL TRAIN ITS EMPLOYEES
ABOUT ALL THOSE RISKS STEMMING FROM ACCI-
DENTS, ABOUT THE USE OF SAFETY DEVICES FOR
THEIR OWN SAFETY AND ABOUT THE GENERAL
RULES FOR ACCIDENT PREVENTION IN COMPLIAN-
CE WITH INTERNATIONAL REGULATIONS AND WITH
THE LAWS OF THE COUNTRY WHERE THE PLANT
IS USED.
THE BEHAVIOUR OF THE EMPLOYEES SHALL STRICTLY
COMPLY WITH THE ACCIDENT PREVENTION AND ALSO
ENVIRONMENTAL REGULATIONS IN FORCE IN THE
COUNTRY WHERE THE PLANT IS INSTALLED AND USED.
Read carefully and entirely the following instructions
before using the product. Please save these
instructions in a safe place.
The unauthorised tampering/replacement of
one or more parts composing the machine,
the use of accessories, tools, expendable
materials other than those recommended by
the Manufacturer can be a danger of accident.
The Manufacturer will be relieved from tort and criminal
liability.
• KEEP YOUR WORK PLACE CLEAN AND TIDY. DISORDER
WHERE YOU ARE WORKING CREATES A POTENTIAL RISK
OF ACCIDENTS.
• ALWAYS KEEP PROPER BALANCE AVOIDING UNUSUAL
STANCE.
• BEFORE USING THE TOOL, ENSURE THERE ARE NOT
DAMAGED PARTS AND THE MACHINE CAN WORK 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 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 EQUIP-
MENT.
• NEVER MODIFY ANY PART IN THE EQUIPMENT. CHECK
REGULARLY THE COMPONENTS OF THE SYSTEM.
REPLACE THE PARTS DAMAGED OR WORN.
•
TIGHTEN AND CHECK ALL THE FITTINGS FOR

5
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English
F
CONNECTION 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 CARE-
FULLY. 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
exible hose.
All the conductors near the work area must be earthed.
• NEVER SPRAY OVER FLAMMABLE PRODUCTS OR SOL-
VENTS 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,
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.
Electrical safety precautions
• Check the "ON/OFF" switch is on the "OFF" position before
connecting the cable to the mains.
• Never carry a plugged-in equipment.
• Disconnect the equipment before storing it and before perfor-
ming any maintenance operation or replacing of accessories.
• Do not carry the equipment neither unplug it by pulling the
electric cable.
Protect the cable from heat, oil and sharp edges.
• When the tool is used outdoors, use only an extension cable
suited for outdoor use and so marked.
Never attempt to tamper with the calibre of
instruments.
• 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
CONNECTION OF THE FLEXIBLE HOSE TO THE GUN
• Connect the high pressure exible hose to the pump and
to the gun ensuring to tighten the ttings (the use of two
wrenches is suggested).
NEVER use sealants on ttings’ threads.
• It is recommended to use the hose provided with the standard
kit (ref. 35017).
NEVER use a damaged or a repaired exible hose.
CHECK ON POWER SUPPLY
• Check the plant is earthed.

6
GIOTTO
English
F1
F3
F2
OFF
• Check the mains voltage corresponds to the equipment’s
rating (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.
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 mm2) with a maximum 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 ON/OFF switch (F2) is on the "OFF" position (0)
before connecting the cable to the mains.
• Place the pressure control knob (F3) on the “MIN” position
(turn counterclockwise).

7
GIOTTO
English
ON
F5
F6
F4
PREPARATION OF THE PAINT
• Make sure the product is suitable to be used with a spray
gun.
• Mix and lter the product before using it. For ltration, use
CLOSE-MESH (ref.214) and LARGE-MESH (ref.215) LARIUS
METEX braids.
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
methylene chloride). If these products come into contact with
aluminium parts of the equipment, can provoke dangerous
chemical reactions with risk of explosion.
• Point the gun at a container keeping the trigger pressed (so
as to drain the oil inside) till a clean solvent comes out. Now,
release the trigger.
• Remove the suction pipe and take away the solvent tank.
• Point the gun at the solvent tank and press the trigger so as
to recover the residual solvent.
• As the pump idles, press the ON/OFF switch (F5) on the
position "OFF" (0) to stop the tooling.
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.
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.
• Ensure the gun (F4) is without nozzle.
• Open the re-circulation tap.
Turn the unit ON-OFF switch (F5) on the "ON" position (I).
• Rotate the pressure setting knob (F6) slightly clockwise so
that the machine operates at minimum power.

8
GIOTTO
English
G
G1
G2
G3
G4
NEVER point the spray gun at yourselves or at
other people. The contact with the casting can
use serious injuries. In case of injuries caused by
the gun casting, seek immediate medical advice
specifying the type of the product injected.
The drain valve is a safety valve too. When
working at the maximum pressure available,
releasing the gun trigger sudden increases of
pressure can occur. In this case, the drain valve
opens automatically eliminating part of the product from the
recirculating tube. Then it closes so as to go back to the rst
working conditions.
WORKING
START OF THE PAINTING OPERATIONS
• Use the tooling after performing all the SETTING UP ope-
rations above described.
• Dip the suction pipe (G1) into the product tank.
• Open the re-circulation valve (G2).
• Press the ON/OFF switch of the equipment and turn a little
the pressure control knob (G3) clockwise, so as the machine
works at the idle speed.
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 perpen-
dicular to it.
• Make sure the product recycles from the return tube (G4).
• Close the re-circulation valve.
• At this point the machine will continue to suck the paint
product until the delivery hose is completely full. Afterwards,
the product will re-circulate automatically.

9
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English
H
H1
OFF
H2
CLEANING AT THE END WORK
• Reduce pressure to the minimum (turn counterclockwise the
pressure control knob (H1) ).
• Press the ON/OFF switch (H2) placed on the box of the
electric motor, to stop the equipment.
• First release the residual pressure from the gun by holding
it pointed down towards the paint container, then open the
re-circulation valve.
• Lift the suction pipe and replace the product tank with that
of the solvent (ensure it is compatible with the product being
used).
• Unscrew the gun nozzle (do not forget to clean it with solvent!).
• Turn the ON-OFF switch (H2) on the ON position and
rotate the pressure setting knob (H1) slightly clockwise.
• Make sure the solvent recycles the washing uid from the
return tube.
• Close the re-circulation valve.
• Point the gun at the product tank and, keeping the trigger
pressed, release the remaining product till a clean solvent
comes out. Now, release the trigger.
• Lift again the suction pipe and remove the solvent tank.
• Now point the gun at the solvent tank and press the trigger
so as to recover the residual solvent.
• As the pump starts idling, press the ON/OFF switch 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
exible hose.
Follow the washing procedure before using again
the equipment.

10
GIOTTO
English
I
I1
Apparecchi per verniciatura
ATTENZIONE
UTILIZZARE GRUPPI ELETTROGENI
CON ALTERNATORE ASINCRONO
http: www.larius.com
Paint spraying units
USE POWER UNITS WITH
ASYNCHRONOUS ALTERNATOR
e-mail [email protected]
L
REPLACING HYDRAULIC OIL
After operating for 100 hours, replace the oil in the pump;
• Discharge the waste oil through the hydraulic lter tted at
the bottom of the pump casing.
• Clean and, if necessary, replace the worn seals.
• Replace the lter in its seat by screwing it tightly.
• Fill the pump with the recommended oil until it reaches the
maximum level.
• Then, substitute the oil every 250 hours.
CLEANING THE MOTOR COOLING FAN GUARD
Clean the motor cooling fan protection guard periodically to
ensure the best cooling.
ROUTINE MAINTENANCE
TOP UP HYDRAULIC OIL
With each start up, check the hydraulic oil level by looking through
the gauge on the side of the hydraulic body. If necessary, use
“AGIP OSO 46 type hydraulic oil” to top up the level.
RELEASE THE SUCTION VALVE
If the pump malfunctions, release the suction valve tted on the
head of the pump in the following way:
• Remove the suction hose tting and release the valve by
inserting a rigid rod (I1) with a diameter of no more than 15
mm.
CLEANING THE COMPRESSION VALVE
When the compression valve must be removed, clean it with
specic solvents depending on the type of paint used and ret
all parts by inverting the removal order.
WARNING PLATE
® ®

11
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M PROBLEMS AND SOLUTIONS
Solution
Cause
Problem
• The equipment does not start
• The equipment does not suck the
product
• The equipment suck 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.
Leakage from the seal-tightening
screw
• The atomization is imperfect
• Lack of voltage;
• Considerable drops in mains voltage;
• ON-OFF switch disconnected;
• Setting valve faulty pressure;
• Breakdown of motor electric control
box;
• The product is solidied inside the
pump;
• Suction lter clogged;
• Suction lter too ne;
• The equipment sucks air;
• Lack of product;
• The equipment sucks air;
• The drain valve is open;
• Suction or delivery valve dirty;
• Nozzle too big or worn;
• The product is too dense;
• The lter of the gun-butt is too ne;
• The nozzle is partially clogged;
• The product is too dense;
• The lter of the gun-butt is too ne;
• The nozzle is worn;
• Check the correct connection to the
power supply;
• Check the extension cable;
• Ensure the ON-OFF switch is on the
“ON” position and turn clockwise
the pressure control knob;
• Verify and replace it, if necessary;
• Verify and replace it, if necessary;
• Open the drain valve to release
pressure in the circuit and stop the
machine. Remove the compression
valve and clean it;
• Clean or replace it;
• Replace it with a larger-mesh lter
(with very dense products, remove
the lter);
• Check the suction pipe;
• Add the product;
• Check the suction pipe;
• Close the drain valve;
• Disassemble the colour body group;
• Replace it with a smaller one;
• Dilute the product, if possible;
• Replace it with a larger-mesh lter;
• Clean or replace it;
• Dilute the product, if possible;
• Replace it with a larger-mesh lter;
• Replace it;
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").

12
GIOTTO
English
N
N5
N4
N1
N3
OFF
N2
CORRECT PROCEDURE OF DECOMPRESSION
• Insert the gun clamp (N1).
• Move the ON/OFF switch (N2) to the OFF position (0) to stop
the equipment.
• Disconnect the power supply cable (N3).
• Release the gun clamp (N4). Point the gun at the tank of the
product and press the trigger to release pressure. At the end
of the operation, insert the gun clamp.
• Open the re-circulation valve (N5) to release residual pressure.
WARNING :
If the equipment is still under pressure after performing the operations above described
because of the nozzle or the exible hose clogged, proceed as follows:
• Loosen very slowly the gun nozzle.
• Release the clamp.
• Point the gun at the container of the product and press the trigger to release
pressure.
• Loosen very slowly the tting of connection from the exible hose to the gun.
• Clean or replace the exible hose and the nozzle.

13
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English
O
Pos.
Suction systems
Suction tube
Recirculation tube
Spring
Filter of suction
85009
85010
16609
18096
85012
-
1
2
3
4
Code Description
SUCTION SYSTEMS
1
2
3
4

14
GIOTTO
English
PCOMPLETE HYDRAULIC BODY
Ref. 12488
Spare supplied complete
(recommended)
2726
25 22 21
20 19
30 31 32 33
9
10 11
2 3
5 4
37 38 39 40 29
41
42
28
34
12 13 14 1516
1718
6 7 8
36 35
23 24
115 9 10

15
GIOTTO
English
Pos. Pos.
Hydraulic support
Hydraulic piston
Spring pad
Spring
Cylinder liner
O-Ring
Spring housing
Elastic ring
Bearing
Elastic ring
Bearing
Elastic ring
Elastic ring
Bearing
O-Ring
Cover
Washer
Screw
Gas-ring
Pulley assembly
Shock absorber
Half-joint
Dowel
Spline
Key
Washer
Nut
Oil level plug
Plug
O-Ring
Filter
Washer
Oil lter body
Oil lter screw
Dowel
Knob
Spring
Safety catch
Valve body
O-Ring
Pressure regulation
Electric motor 230V 50HZ
Electric motor 400V 50Hz three-phase
Electric motor 115V 60Hz
12455
12456
82019
82021
82017
82022
82023
81020
31125
81020
12457
12467
12466
12465
12464
12459
12462
901568
31128
12491
81038
12460
81009
81012
81014
81033
95158
32007
32108
32012
258
32010
12461
12475
32017/1C
32017
32017/2
32016
32155
32014
32150
81001
81002
81003
1*
2
3
4
5*
6
7
8
9*
10*
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
42
42
Code Description Code Description
*Pos. 1-5-9-10 spare supplied complete (recommended) - Ref. 12488

16
GIOTTO
English
QGIOTTO PETROL – GIOTTO LINER
17
20
15
14
917
12
3
3
31
9
8
75
2
1
17
16
13
18
11
10
3
6
43
19
A
B
33
32

17
GIOTTO
English
Pos. Pos.
Complete gearbox – petrol membra-
ne version
Complete gearbox kit – Giotto petrol
version with trolley
Complete Giotto liner kit
Motor
Flange motor
Washer
Screw
Pinion
Washer
Screw
Toothed bell
Tab
Bearing
Gearbox cone
Screw
Bearing
Screw
Washer
Hydraulic ange
Dowel
Reduction
Plating guard
Ball seat
Vibration damper
Threaded pin
Nut
Washer
Screw
Screw
Washer
Nut
Fixing plate
Vibration damper
Screw
Motor gasket
Gearbox gasket
18260
,
18342
.
18346
4415
18261
34009
96031
18262
18263
8385
18265
18919
42255
18266
34008
18267
18344
95114
18268
81009
18269
18264
18258
81107
18942
52017
32024
34008
95156
81033
95158
18254
700711
7059
18282
18283
A
.
B+C+D
,
B+C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Code Description Code Description
C
D
26
27
22
21
23
24
22
30
29
24
25
27
28

18
GIOTTO
English
RCOMPLETE COLOUR BODY
24
25
26
27
28
29
30
31
32
21
20
19
18
17
22
23
14
15
16
13
12
11
33
9
8
7
6
5
4
3
2
1
10