DeVilbiss PRI Pro Lite Service Manual

EN

DEVILBISS PRI Pro Lite

SERVICE MANUAL

II 2 G X

Contact your local DeVilbiss representative for additional copies of this manual.

READ ALL INSTRUCTIONS BEFORE OPERATING THIS DEVILBISS PRODUCT.

High Efficiency

Gravity Spray Gun

IMPORTANT! DO NOT DESTROY

It is the Customer's responsibility to have all operators and service personnel read and understand

this manual.

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EN

P1 = 1/4"

P2 = 3/8"

Trigger

GUN ONLY

L x H x W mm

SPECIFICATIONS

CONNECTIONS

ENVIRONMENTAL

Max Ambient Operating Temperature

BSP

Seals and O-Rings

2.0 Bar [29 psi]
Seals and O-Rings

Air Cap Retaining Ring, Sprayhead, Adjusting Knobs

Air Inlet, Valve Body, Housing, Packing Nut

WITH CUP

FUNCTIONAL DESCRIPTION

WEIGHT

MATERIALS OF CONSTRUCTION

Anodised Aluminium

40°C Nominal [104°F]

The PRi PRO Lite spray gun is a professional quality gun designed with EPA compliant, High Efficiency
technology. High Efficiency complies with EPA by obtaining transfer efficiency above 65%.

AIR INLET PRESSURES

Gun Body Material

Gun Air Inlet Pressure with gun triggered
Air Cap Material

Air Valve Stem

Electroless Nickel Plated Brass

Max Static Air Input Pressure

P1 =

12 Bar [175 psi]
Air Cap Retaining Ring, Sprayhead, Adjusting Knobs

446g

Air Valve Stem

Vibration Level:

Sound Pressure Level:

Available on request

Available on request

Sound Power Level:

<2.5 m/s²

629g

Fluid Tip, Fluid Needle and Trigger Stud

Fluid Inlet Size

Universal

Air Cap Retaining Ring, Sprayhead, Adjusting Knobs

Air Cap Material
Springs, Clips, Screws

Air Inlet Size

Air Inlet, Valve Body, Housing, Packing Nut

Chrome plated brass

DIMENSIONS

186 x 317 x 108

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Zone 1 / Zone 2

II 2 G X

TRAC Global Ltd (0891)

Lodging of Technical file

This Declaration of conformity /
incorporation is issued under the sole
responsiblility of the manufacturer:

Finishing Brands UK Ltd,
Ringwood Road,
Bournemouth, BH11 9LH. UK

EU Declaration of Conformity

Machinery Directive 2006/42/EC
ATEX Directive 2014/34/EU
by complying with the following statutory documents and harmonised standards:
EN ISO 12100:2010 Safety of Machinery - General Principles for Design
BS EN 1953:2013 Atomising and spraying equipment for coating materials - Safety requirements
EN 1127-1:2011 Explosive atmospheres - Explosion prevention - Basic concepts
EN 13463-1:2009 Non electrical equipment for use in potentially explosive atmospheres - Basic methods and
requirements
HVLP and High Efficiency products comply with the requirements of PG6 from the EPA guidelines and offer
greater than 65% transfer efficiency.

Providing all conditions of safe use / installation stated within the product manuals have been complied with and
also installed in accordance with any applicable local codes of practice.

Signed for and on behalf of Finishing Brands

UK Ltd:

D Smith

Director of Sales (EMEA)

5/10/16

Protection Level:

Notified body details and role:

The object of the declaration described above is in conformity with the relevant Union
harmonisation legislation:

Product Description / Object of Declaration:

PRi Pro Lite™

This Product is designed for use with:

Solvent and water based materials

Suitable for use in hazardous area:

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EN

NOISE LEVELS. The A-weighted sound level of pumping and spray equipment
may exceed 85 dB(A) depending on equipment settings. Actual noise levels
are available on request. It is recommended that ear protection is worn at all
times while equipment is in use.

NEVER MODIFY THE EQUIPMENT. Do not modify the
equipment unless the manufacturer provides written approval.

LOCK OUT / TAG-OUT. Failure to de-energise, disconnect, lock out and tag­out all power sources before performing equipment maintenance could cause
serious injury or death.

PRESSURE RELIEF PROCEDURE. Always follow the pressure
relief procedure in the equipment instruction manual.

OPERATOR TRAINING. All personnel must be trained before
operating finishing equipment.

IT IS THE RESPONSIBILITY OF THE EMPLOYER TO PROVIDE THIS INFORMATION TO THE OPERATOR OF THE EQUIPMENT.

PROJECTILE HAZARD. You may be injured by venting liquids or
gases that are released under pressure, or flying debris.

TOXIC VAPOURS. When sprayed, certain materials may be poisonous, create
irritation, or are otherwise harmful to health. Always read all labels, safety
sheets and follow any recommendations for the material before spraying. If in
doubt contact your material supplier.

HIGH PRESSURE CONSIDERATION. High pressure can cause serious
injury. Relieve all pressure before servicing. Spray from the gun, hose leaks or
ruptured components can inject fluid into your body and cause extremely
serious injury.

INSPECT THE EQUIPMENT DAILY. Inspect the equipment for
worn or broken parts on a daily basis. Do not operate the
equipment if you are uncertain about its condition.

FIRE AND EXPLOSION HAZARD. Never use 1,1,1-Trichloroethane,
Methylene Chloride, other Halogenated Hydrocarbon solvents or fluids
containing such solvents in equipment with aluminium wetted parts. Such use
could result in a serious chemical reaction, with the posibility of explosion.
Consult your fluid suppliers to ensure that the fluids being used are compatible
with aluminium parts.

KNOW WHERE AND HOW TO SHUT OFF THE EQUIPMENT
IN CASE OF AN EMERGENCY.

READ THE MANUAL. Before operating finishing equipment, read and
understand all safety, operation and maintenance information provided in the
operation manual. 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.

WEAR SAFETY GLASSES. Failure to wear safety glasses with
side shields could result in serious eye injury or blindness.

SOLVENTS AND COATING MATERIALS. Can be highly flammable or
combustible when sprayed. Always refer to the coating material supplier's
instructions and safety sheets before using this equipment.

In this part sheet, the words WARNING, CAUTION and NOTE are used to emphasise important safety information as
follows:

EQUIPMENT MISUSE HAZARD. Equipment misuse can cause
the equipment to rupture, malfunction or start unexpectedly and
result in serious injury.

CAUTION

Hazards or unsafe practices which could result in

minor personal injury, product or property

damage.

Read the following warnings before using this equipment.

NOTE

STATIC CHARGE. Fluid may develop a static charge that must be dissipated
through proper grounding of the equipment, objects to be sprayed and all other
electrically conductive objects in the dispensing area. Improper grounding or
sparks can cause a hazardous condition and result in fire, explosion or elecrtic
shock and other serious injury.

WEAR RESPIRATOR. The use of respiratory protective
equipment is recommended at all times. The type of equipment
must be compatible with the material being sprayed.

Hazards or unsafe practices which could result in

severe personal injury, death or substantial

property damage.

Important installation, operation or maintenance

information.

GLOVES. Must be worn when spraying or cleaning the
equipment.

WARNING

WARNING

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EN

- G PR10 - 14

PR10

**

*

PRILT

TABLE 1

See table 2

High Efficiency

Size

2.0 Bar [29 psi]

300 L/min

Gravity

PR10

High Efficiency

PRIPRO-102-PR10-K

260-300mm

FLUID TIP

Air Cap & Type

Typical Fan Pattern Size**

Air Consumption

Fan pattern size @ 200mm distance.

PRIPRO-220-16-K

PRIPRO-220-18-K

AIR CAP

PRi Pro Lite™

AIR CAP PERFORMANCE GUIDE

Fluid Tip

Needle

PRIPRO-320-K

1.6

1.8

2.0

PRIPRO-220-20-K

PRIPRO-220-25-K

UV Applications only

TABLE 2

FLUID TIPS & NEEDLES

PRi Pro Lite™

Fluid Tip Size

PRIPRO-220-14-K

* UV1

PRIPRO-219-UV1-K

* UV2

PRIPRO-219-UV2-K

PRIPRO-319-K

2.5

1.4

PRi Pro Lite

Part Number

Recommended Air Inlet

Pressure

GUN PART NUMBER FORMAT & PART SELECTION GUIDE

See table 1

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EXPLODED VIEW

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20

SN-18-1-K2

8

FLUID TIP

1

-1-1214101

1

AIR VALVE BODY

1

PACKING, SPRING & PACKING NUT KIT

1

1

PACKING SPRING

1

PACKING NUT

SPRAY HEAD KIT

15131

NEEDLE PACKING

1-1823-

19

AIR VALVE STEM

REAR VALVE SEAL

-

VALVE SEAT

SN-404-K

1

PRO-472-K3

SN-66-K

PRO-471

AIR VALVE ASSEMBLY

-

1

AIR VALVE SPRING

SEE TABLE

FLUID NEEDLE

111

NEEDLE SPRING KIT

SN-67-C-K

1

25746-007-K5

1

1

RETAINING RING

AIR CAP

1

JGA-156-K5

SEE TABLE

AIR CAP & RETAINING RING
SPRING CLIP (KIT OF 5)

1

1

RETAINING RING SEAL

SN-41-K

9

BAFFLE PLATE

*11

GASKET (KIT OF 2)

1

SN-69-K1-

1

PART No.

QTY.

PARTS LIST

1

5

7

SLIP RING

2

3

DESCRIPTION

REF.

1

SPRAYHEAD

SEE TABLE

6--

4

-

RETAINING RING SUB ASSEMBLY

PRO-420-K

-

-

WASHER

-3517

FRONT VALVE SEAL

11-

31

VALVE HEAD

111

1

CIRCLIP

*32

302426--

NEEDLE SPRING

SPRING PAD

252122-1

VALVE BODY

*27

VALVE ADJUSTING KNOB

1137

PRO-407-K

CIRCLIP (KIT OF 5)

FLUID ADJUSTING KNOB

29128

SPREADER VALVE PIN

1

AIRFLOW VALVE

*34-33

-

O RING -*361-

*16

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EN

-11

+52

1

GTI-428-K5

The spray gun must be earthed to dissipate any electrostatic charges which may be created by fluid

or air flows. This can be achieved through the spray gun mounting, or conductive air/fluid hoses.

Electrical bond from the spray gun to earth should be checked and a resistance of less than 10⁶ Ohms

is required.

AIR VALVE SERVICE TOOL

WARNING

1

DRIP CHECK LID (KIT OF 5)

BLACK (UV ONLY)

GRAVITY CUP KIT

50

GFC-422

GFC-515
GRAVITY CUP LID

BLACK (UV ONLY)

PRO-406-K

-

FILTER (KIT OF 5)

48

GRAVITY CUP LID

GRAVITY CUP

1

GFC-402

1

SPREADER VALVE ASSEMBLY

47

-

PRO-470

TORX DRIVER (KIT OF 2)

SPN-8-K245111

-

KGP-5-K5

VALVE BODY

SPREADER VALVE ADJUSTING KNOB

46

SP-617-CR-K

1

TRIGGER STUD

1

1

49

51

SERVICE PARTS

GRAVITY CUP KIT

53

TOOL KIT154

NOT INCLUDED IN THE GUN KIT, ONLY WITH REF 22

+

1

1

TRIGGER STUD & SCREW KIT

GFC-501-44

SEAL AND PIN KIT, KIT OF 5 (ITEMS 32, 34 & 36)

SPRAY GUN REPAIR KIT (INCLUDES ITEMS MARKED *)
SN-406

GFC-2-K5

*42431

SN-9-K

TRIGGER

COLOUR ID RING KIT (4 COLOURS)

REF.

1-39

AIR INLET

1

*40

38

SN-26-K4

PART No.

PARTS LIST (Continued)

DESCRIPTION

QTY.

41

TRIGGER SCREW

-

1

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•••

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

Spray edges first. Overlap each stroke a minimum of 75%. Move gun at a constant speed.

1213Adjust inlet air pressure if required.

Turn fluid adjusting knob counter clockwise until first thread shows.

456

7

2

CAUTION

The gun is not designed for use with highly corrosive and/or abrasive materials.

To avoid premature degradation of parts, DeVilbiss recommends the gun is washed in neutral
cleaning solution (pH 6 to 8).

The gun is not designed to be cleaned within an ultrasonic bath.

Turn spreader valve adjusting knob (45) counter clockwise to fully open.

Connect the gun to a clean, moisture and oil free air supply using a conductive hose of at least
8mm I.D.

10

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

9

The pattern size can be reduced by turning spreader valve knob (45) clockwise.

8

If finish is too wet, reduce fluid flow by turning fluid adjusting knob (28) clockwise. If
atomisation is too coarse, increase air inlet pressure. If too fine, reduce inlet pressure.

11

The recommended spray distance is 150-200mm.

Turn fluid adjusting knob (28) clockwise to prevent fluid needle movement.

START-UP SEQUENCE

Test spray. If the finish is too dry, reduce airflow by reducing air inlet pressure.

Mix coating material to Manufacturer's instructions and strain material.

3

IMPORTANT: This spraygun is suitable for use with both waterbased and solvent based coating
materials.

1

If there is any doubt regarding the suitability of a specific material, contact your DeVilbiss Distributor
or DeVilbiss direct.

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If quick connect couplings are required, use only high flow quick connects. Other types will not flow

enough air for correct gun operation.

KEY

Order for disassembly

To clean air cap and fluid tip, brush exterior with a stiff bristle brush. If necesarry to clean cap holes,
use a broom straw or toothpick if possible. If a wire or hard instrument is used, extreme care must
be taken to prevent scratching or burring of the holes which will cause a distorted spray pattern.

To clean fluid passages, remove excess material, then flush with gun wash solution. Wipe the gun
exterior with a dampened cloth. Never completely immerse in any solvent or cleaning solutions as
this is detrimental to the lubricants and life of the spray gun.

SPRAY GUN DISASSEMBLY / ASSEMBLY

SPRAY GUN MAINTENANCE & CLEANING

- see over page

(reverse for assembly)

- see over page

Item Number

NOTE

NOTE

Depending on hose length, larger I.D. hose may be required. Install an air gauge at the gun handle.

When gun is triggered on, adjust regulated pressure as required. Do not use more pressure than is

necesarry to atomise the material being applied. Excess pressure will create additional overspray and

reduce transfer efficiency.

#

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12Remove the fluid adjusting knob to relieve spring pressure against needle collar.

CAUTION

NOTE

Pull the trigger and hold while tightening or loosening the fluid tip, or,

When replacing the fluid tip or fluid needle, replace tip, needle and fluid packing at the same time.

Using worn parts can cause fluid leakage. Do not overtighten.

DISASSEMBLY TIP & NEEDLE

To prevent damage to fluid tip or fluid needle, be sure to either:

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DISASSEMBLY AIR VALVE

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ASSEMBLY AIR VALVE SEALS



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DISASSEMBLY PACKING

DISASSEMBLY AIR VALVE

(12/24)

SPREADER VALVE REPLACEMENT

1

12

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EN

Excessive fluid tip wear.

Replace with new fluid tip.

Gun spits paint when triggering
on due to paint build-up inside
air cap between spraying
operations.

Fluid tip not fitted correctly in
gun head.

Tighten.
Fluid tip/needle leakage.

Check for damage or blockage.

Paint build-up on fluid tip.

Fluid tip not fitted correctly in
gun head.

Tighten.

Fluid tip/needle leakage.

Damaged air cap holes.

CAUSE

CORRECTION

Excessive needle wear.

Replace with new needle.

GENERAL FAULTS

Gun spits paint when triggering
on and off.

Incorrect needle fitted to gun.

Check fluid tip/needle selection
chart and fit correct item.

Paint build-up on air cap.

Will not spray.

No air pressure at gun.

Check air supply and air line.

Fluid needle adjustment knob
not open enough.

Open fluid needle adjustment
knob.

Replace with new air cap.

Gradual build-up of bounce-back
on gun head.

Thoroughly clean.

Unable to get round spray

Fluid tip or sprayhead incorrectly
fitted.

Remove, check components for
damage and refit correctly.

Check for damage or blockage.

TROUBLESHOOTING MECHANICAL PERFORMANCE

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Adjust.

FLUID FAULTS

CAUSE

Replace.

Thoroughy clean.
Replace.

Slow fluid leak from needle
packing.

Remove tip and needle and
thoroughly clean.

Fluid needle packing worn or
loose.

Incorrect fluid tip for fluid needle
fitted to gun.

Check tip/needle selection chart
and fit correct item.

Major fluid leak or fluid jetting
from fluid tip and needle seat.

Contamination on needle or tip
mating surfaces preventing good
seal.

Lubricate packing. (GL-1)

CORRECTION

Contamination on needle or tip
mating surfaces preventing good
seal.

Fluid needle external profile
damaged or worn.

Tight packing nut.

Slow fluid leak from fluid tip and
needle seat.

Tighten or replace as necesarry.
Fluid tip internal seat scored

damaged or worn.

Incorrect fluid tip for fluid needle
fitted to gun.

Check tip/needle selection chart
and fit correct item.

When removing air cap from retaining ring, do not remove the ring seat from the retaining ring.
Damage to the parts may occur. Simply wipe parts clean and reassemble with new or clean air cap.

Sluggish needle.

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Small air leak from air cap when
gun is not triggered.

Air Valve Stem contaminated
and not correctly seating.

Remove Air Valve Stem and
thoroughly clean valve shaft and
seating surfaces.

Air Valve Stem seal damaged or
missing.

Replace.

AIR FAULTS

CAUSE

CORRECTION

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Fluid tip or cap dirty or damaged.

Replace fluid tip or air cap if
necesarry.

CORRECTION

TROUBLESHOOTING SPRAY PERFORMANCE

CAUSE

CONDITION

Replace fluid tip or air cap if
necesarry.

Material build-up on fluid tip
exterior or partially plugged fluid
tip.

Heavy top or bottom
pattern.

Material build-up on air cap,
plugged horn holes, centre holes
or jets.

Soak cap or tip in suitable
solvent and thoroughly clean.

Heavy right or left
side pattern.

Left or right side horn holes
plugged.

Dirt or damage on left or right
side of fluid tip exterior.

Remedies for the top-heavy, bottom-heavy, right-heavy and left-heavy patterns.

Determine if the obstruction is on the air cap or the fluid tip. Do this by making a test spray pattern.
Then, rotate the cap one-half turn and spray another pattern. If the defect is inverted, obstruction is
on the air cap. Clean the air cap as previously instructed. Also check for dried paint just inside the cap
centre hole opening, remove by washing with solvent.

If the defect is not inverted, it is on the fluid tip. Clean tip. If problem persists, renew tip.

Soak cap or tip in suitable
solvent and thoroughly clean.

Replace fluid tip or air cap if
necesarry.

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Reduce fluid flow by turning fluid
needle adjusting screw
clockwise. Reduce fluid pressure.

Pattern adjustment valve set too
low.

Turn out counter clockwise to
achieve correct pattern.

Reduce input air pressure.
Atomising air pressure too low.

Increase air pressure.

Heavy centre pattern.

Too much material.

Reduce air pressure by rotating
pattern control valve clockwise.

Too much air for fluid quanitity
used.

Loose fluid tip.

Fluid tip not seated correctly in
gun head.

Not enough material flow.

Thin to correct consistency.

Partially obstructed fluid passage
or hose.

Clean or replace.

Split spray pattern

Material too thick.

Remove fluid tip, clean
components, check cone seating
on tip and gun for damage or
contamination.

Too high horn pressure.

Increase fluid flow by changing fluid
tip size, opening needle control knob
or increase fluid pressure on
pressure feed container.

Intermittent or 'fluttering'
spray fan.

Tighten.

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Reduce air pressure and check
spray pattern.

Reduce air pressure.

Ball end heavy
pattern.

Thin, sandy coarse finish drying
before it flows out.

Mount gun at right angle to work.

Increase fluid flow by changing
fluid tip size, supply pressure or
turning needle control knob
counter clockwise.

Runs and sags.

Gun too far from surface.

Check distance.

Fluid flow too low.

Gun tilted at an angle.

Gun too far from surface.
Too much air pressure.

Excessive bounce-back.

Check distance (normally 150­200mm).

Mix properly or apply light
coats/reduce fluid flow.

Adjust gun or reduce fluid
pressure.

Too much fluid flow.

Material too thin.

Too much atomisation air
pressure.

Change fluid tip for smaller size
or change air cap for different
specification air cap.

Too much fluid flow.

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DIMENSIONS

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NOTES

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NOTES

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WARRANTY POLICY

© 2016 Carlisle Fluid Technologies,Inc., dba Finishing Brands.

All rights reserved.

Finishing Brands reserves the right to modify equipment specifications without prior notice.

DeVilbiss®, Ransburg®, MS®, BGK®, and Binks® are registered trademarks of Carlisle Fluid

Technologies, Inc.,dba Finishing Brands.

DeVilbiss products are covered by Finishing Brands one year materials and workmanship
limited warranty. The use of any parts or accessories, from a source other than Finishing
Brands, will void all warranties. For specific warranty information please contact the closest
Finishing Brands location listed below.

www.carlisleft.com.au
[e-mail]
Tel: [phone]
Fax: [phone]

USA/Canada

United Kingdom

www.carlisleft.eu
[e-mail]
Tel: [phone]
Fax: [phone]

China

www.carlisleft.com.cn
[e-mail]
Tel: [phone]
Fax: [phone]

Mexico

Australia

www.carlisleft.com.mx
[e-mail]
Tel: [phone]
Fax: [phone]

France

www.carlisleft.eu
[e-mail]
Tel: [phone]
Fax: [phone]

Japan

Brazil

www.devilbiss.com.br
[e-mail]
Tel: [phone]
Fax: [phone]

www.ransburg.co.jp
[e-mail]
Tel: [phone]
Fax: [phone]

Germany

www.carlisleft.eu
[e-mail]
Tel: [phone]
Fax: [phone]

www.devilbiss.com
[e-mail]
Toll Free Tel: [phone]
Toll Free Fax: [phone]

DeVilbiss is part of Finishing Brands, a global leader in innovative spray finishing
technologies. For technical assistance or to locate an authorised distributor, contact
one of our international sales and customer support locations below.

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