DeVilbiss SRi Operation Manual

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SB-E-2-510

Operation Manual

SRi – Gravity Spraygun

ISS.04

P 2 - 8

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Operation Manual

Devilbiss SRi – Gravity Spraygun

Important

Read and follow all instructions and Safety Precautions before using

this equipment

Description

The Devilbiss SRI is a small Gravity fed Spraygun designed for spraying spot repairs and small areas. It is approved to ATEX regulations 94/9/EC, protection level;

II 2 G X, Suitable for use in Zones 1 and 2

Important: These Sprayguns are suitable for use with both waterbased and solvent based

coating materials. The design uses EPA compliant atomising (Devilbiss Trans-Tech®) technology to reduce overspray and improve coating efficiency. Nozzles and Needles are manufactured in Stainless Steel. These guns are not designed for use with highly corrosive and/or abrasive materials and if used with such materials it must be expected that the need for cleaning and/or replacement of parts will be increased. If there is any doubt regarding the suitability of a specific material contact your local Distributor or ITW Finishing direct.

Model Part Number

Example: SRI-G210B-08

Fluid nozzle size

Aircap

(08 = 0,8 mm)

EC Declaration of Conformity

We: ITW Finishing UK, Ringwood Rd, Bournemouth, Dorset, BH11 9LH, UK, as the

manufacturer of the Spraygun model SRi, declare, under our sole responsibility, that the

equipment to which this document relates is in conformity with the following standards or other

normative documents:

BS EN 292-1 PARTS 1 & 2: 1991, BS EN 1953: 1999; and thereby conform to the

protection requirements of Council Directive 98/392/EC relating to Machinery Safety Directive,

and;

EN 13463-1:2001, council Directive 94/9/EC relating to Equipment and Protective

Systems intended for use in Potentially Explosive Atmospheres protection level II 2 G X.

This product also complies with the requirements of the EPA guidelines, PG6/34.

Transfer efficiency certificates are available on request.

ITW Finishing Systems and Products reserve the right to modify equipment specification without prior notice.

B. Holt, General Manager

30th June 2003

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SAFETY WARNINGS

Fire and explosion

Solvents and coating materials can be highly flammable or

combustible when sprayed. ALWAYS

refer to the coating material suppliers instructions and COSHH sheets before using this equipment

Users must comply with all local and national codes of practice and insurance company

requirements governing ventilation, fire precautions, operation and house-keeping of working areas

This equipment, as supplied, is NOT Halogenated Hydrocarbons

Static Electricity can be generated by fluid and/or air passing through hoses, by the

spraying process and by cleaning nonconductive parts with cloths. To prevent ignition sources from static discharges, earth continuity must be maintained to the spraygun and other metallic equipment used. It is essential to use conductive air and/or fluid hoses.

suitable for use with

Personal Protective

Equipment

Toxic vapours – When sprayed,

certain materials may be

poisonous, create irritation or be

otherwise harmful to health.

Always read all labels and safety data sheets for the material before spraying and follow any recommendations. If In

Doubt, Contact Your Material Supplier

The use of respiratory protective equipment is recommended at all

times. The type of equipment must be compatible with the material being sprayed.

Always wear eye protection when spraying or cleaning the spraygun

Gloves must be worn when spraying or cleaning the equipment

Training – Personnel should be given adequate training in the safe use of spraying equipment.

Misuse

Never aim a spraygun at any part of the body

Never exceed the max. recommended safe working pressure for the equipment

The fitting of non-recommended or nonoriginal spares may create hazards

Before cleaning or maintenance, all pressure must be isolated and relieved from the equipment

The product should be cleaned using a gun washing machine. However, this equipment should not be left inside gun washing machines for prolonged periods of time.

Noise Levels

The A-weighted sound level of sprayguns may exceed 85 dB (A) depending on the set-up being used. Details of actual noise levels are available on request. It is recommended that ear protection is worn at all times when spraying.

Operating

Spray Equipment using high pressures may be subject to recoil forces. Under certain circumstances, such forces could result in repetitive strain injury to the operator.

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Parts List

Ref. No Description Part Number Qty

*4 Needle Spring SRI-18-K2 1

5 Needle Adjusting Knob SRI-19-K2 1

6 Spreader Valve SRI-401-K 1

7 Body Bushing and Seal Kit SRI-17-K 1

*8 Seal SRI-16-K5 1

*9 Separator SRI-6-K5 1

*10 Needle Packing Kit of 3 SRI-411-K3 1

11 Air Valve Assembly SRI-404-K 1

Air Cap/Retaining ring HVLP SRI-407-205 1

Air Cap/Retaining ring Compliant SRI-407-210 1

Nozzle 0.7 mm seal SRI-2-07-K 1

Nozzle 0.8 mm seal SRI-2-08-K 1

Nozzle 1.0 mm seal SRI-2-10-K 1

Nozzle 1.2 mm seal SRI-2-12-K 1

Needle for 1.0 and 1.2 mm Nozzle SRI-3-K 1

Needle for 0.7 and 0.8 mm Nozzle SRI-37-K 1

12 Air Valve Stem Assembly - 1

13 Trigger Stud and Screw Kit SRI-412-K 1

14 Trigger SRI-9-K 1

15 Air Inlet Adaptor SRI-20-K 1

16 Blanking Plug (to replace airflow valve) SRI-21 1

17 Airflow Valve SRI-402-K 1

*18 Spanner SRI-50-K2 1

19 Cup and Lid Kit of 12 SRI-510 1

*20 Aircap Seal SRI-35-K5 1

*21 Airvalve Spring SRI-23-K2 1

*22 Airvalve Seal - 1

23 Retaining Ring - 1

24 Filter —Kit of 3 SRI-42-K3 1

25 Airvalve Body - 1

Parts marked with * are contained in the service Kit SRI-416 + SRI-440-07

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Patent No 2372465 (GB)

Air supply connection - Universal 1/4“ BSP and NPS (M) Maximum Static Air inlet pressure - P

Nominal gun Air inlet pressure with gun triggered - 2 bar (29 psi) Gun Weight (with Cup and Lid) - 390g Maximum Service temperature - 40°C

Materials of Construction for wetted parts

Gun body - Anodised Aluminium Nozzle - Stainless steel Needle - Stainless Steel Cup - Anti-static Acetal Cup Lid - Anti-static Acetal

Specification

= 9 bar (130 psi)

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Installation

Important: To ensure that this equipment

reaches you in first class condition, protective coatings have been use. Flush

the equipment through with a suitable solvent before use.

1. Attach air hose to connector (15). Recommended hose size 8 mm

Operation

1. Mix coating material to manufacturers instructions.

2. Screw Cup (19) to Gun. Do not over tighten.

3. Place the filter (24) in the cup and fill to required level with paint, or use funnel (SRI-17) and use paper filter. Screw on lid.

4. Turn needle adjusting screw (5) fully clockwise to shut off fluid (for setting up air supply pressure).Turn spreader valve (6) counter-clockwise to fully open.

5. Attach air supply to Gun and adjust inlet air pressure up to 2 bar (29psi) at the gun inlet with the gun triggered.

(pressure gauge attachments shown under Accessories are recommended for this).

6. Turn Needle Adjusting Screw anticlockwise 2 turns to find the mid position.

7. Test spray. If the finish is too dry reduce airflow by reducing inlet

bore. The hose must be conductive and electrical bond from the spraygun to earth should be checked with an ohmeter. A resistance of less than 10

2. Air supply should be filtered and regulated.

pressure. If finish is too wet reduce fluid flow by turning needle screw (5) clockwise. If atomisation is too coarse, increase inlet air pressure. If too fine reduce inlet pressure.

8. The pattern size can be reduced by turning Spreader valve (6) clockwise.

9. Hold gun perpendicular to surface being sprayed. Arcing or tilting may result in uneven coating.

10. The recommended spray distance is 75-150 mm (3”-6”).

11. Spray edges first. Overlap each stroke a minimum of 50%. Move gun at a constant speed.

12. Always turn off air supply and relieve pressure when gun is not in use.

Air Flow Valve (17)

1. The airflow valve (17) is fitted to reduce the inlet pressure through the gun. Screw the Adjusting Knob clockwise to reduce pressure.

Ω is recommended.

Preventative Maintenance

1. Turn off air supply and relieve pressure in the airline, or if using QD system, disconnect from airline.

2. Empty coating material into a

suitable container and clean the gun and cup, preferably in a gun wash machine.

3. IMPORTANT– the cup must not be

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cleaned or rubbed with a dry cloth or paper. It is possible to generate a static charge, by rubbing, which if discharged to an earthed object could create an incendive spark and cause solvent vapours to ignite. Only use a dampened cloth or antistatic wipes if additional cleaning is required in a Hazardous area.

4. Remove air cap and clean. If any of the holes in the cap are blocked with

Replacement of Parts

Spanner (18) - The spanner is provided

for removal of the Nozzle (2) with the centre hex and the adjustment of the Needle Packing (10) with the open end.

Aircap (1) - Unscrew Aircap from the Spraygun. Remove seal (20). Remove Aircap from the Retaining Ring (23). Clean Aircap and Ring. Re-assemble Aircap to Retaining Ring (23). Fit new Seal (20) as in Fig A on exploded view, by lightly squeezing and inserting into the ring. Make sure the seal is fitted the correct way round as in Fig B.

Nozzle (2) and Needle (3) – Remove parts in the following order: (5), (4), (3), (1), (2) and (9). Replace any worn or damaged parts and re-assemble in reverse order. It is recommended that the Separator (9) is replaced whenever the Tip (2) is removed. Recommended tightening torque for nozzle (2) 9 Nm (80 lbf in).

Packing (10) – Remove parts (5), (4), (3). Unscrew cartridge (10). Fit new cartridge finger tight. Re-assemble parts (3), (4), and (5) and tighten cartridge (10) with spanner (18) sufficient to seal but to allow free movement of needle. Lubricate with gun oil.

coating material use a toothpick to clean. Never use metal wire which could damage the cap and produce distorted spray patterns.

5. Ensure the tip of the nozzle is clean and free from damage. Build up of dried paint can distort the spray pattern.

6. Lubrication – stud/screw (12/13), nee-

dle (3) and air valve (11) should be oiled each day.

Air valve (11) – Remove trigger (14). Remove body (25) and withdraw complete valve. Remove rear bush, spring and Stem assembly. Remove the Airvalve Cage from the Valve body and remove seal (22). Replace new seal (22), making sure the seal is correctly fitted with the lip facing inwards. Remove old seal (8) from body if left in place. Place new seal (8) on the cage before replacement of the Valve assembly. Slide Stem assembly (12) into the cage assembly, fit the spring (21) on the valve head and fit collar. Fit complete assembly to Gunbody.

Spreader valve (6) – Caution: always ensure that the valve is in the fully open position by turning screw fully counterclockwise before fitting to body.

Air cap / Nozzle Selection

Refer to coating material manufacturers recommendations or ITW Finishing UK Website:

www.itweuropeanfinishing.com

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Accessories

Aircap, Tip and Needle set - SRI-450-***-** (*** = Aircap No, ** = Tip size) Spanner – SRI-50-K2 Cleaning Brush – SRI-65-K2 Service Kit – SRI-416 Gun Mounted Regulator with Mini QD– HAV-601 Lubricant - GL-1-K10 SRI-478-K3 Black Cup and Lid set (3 sets) - suitable for use with UV curing

paints.

SRI-51-K12 Funnel kit of 12

SRI-100 - Gun Carry tray

(Guns not included)

Roundspray Aircap - SRi-407-200

HVLP Mode - Air Inlet Pressure = 1.2 Bar (17.5 PSI) Tanstech Mode – Air Inlet Pressure = 2 bar (29 PSI) Approx Spot Size = Ø40mm

SRI-42-K3

Filter kit of 3

SRI-410 - Carry case for

up to 3 Guns, with SRI-100

Tray

ITW Finishing Systems and Products Ringwood Road, Bournemouth, BH11 9LH, England. Tel. No. (01202) 571111 Telefax No. (01202) 581940, Website address http://www.itweuropeanfinishing.com

ITW Oberflächentechnik GmbH & Co. KG Justus-von-Liebig-Straße 31 63128 Dietzenbach Tel (060 74) 403-1 Telefax: (060 74) 403300 Website address http://www.itw-finishing.de

ITW Surfaces Et Finitions 163-171 avenue des Auréats B.P. 1453 26014 VALENCE CEDEX FRANCE Tél. (33) 475-75-27-00 Télex 345 719F DVILBIS Téléfax: (33) 475-75-27-99

ITW Finishing Systems and Products is a Division of ITW Ltd. Reg. Office: Admiral House, St Leonard’s Road, Windsor, Berkshire, SL4 3BL, UK Registered in England: No 559693 Vat No 619 5461 24

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