DeVilbiss JGP-503 CONVENTIONAL, JGPV-503 HVLP Service Bulletin

-.

__

IEIIILBIIS

The

Right

Wey

To

Fini•h"

SERVICE

BULLETIN

SB-2-290

Major

~r

Klt

KK-4117·2

Minor~

KltKK-6034

JGP-503

CONVENTIONAL SPRAY GUN

JGPV-503

HVLP SPRAY GUN

IMPORTANT: Before uolng

this

equip- OPERATION

ment,

road oil

safety

precoutlone ond in-

ltructlons.

Keep

for future use.

DESCRIPTION
Models JGP and JGPV are lightweight,

high production spray guns. JGP models

are conventional

air

spray, and JGPV are

high volume,

low

pressure iHVLP). The

gun bodies are constructed

of

very du·

rable, solvent resistant

Verton•

(filled

ny·

Jon).

Fluid passages are constructed

of

300

grade stainless steel. Fluid tips and

needles are also

300

grade stainless, and

the fluid

tip

includes

the

"soft

seat•

UHMW

polyethylene insert, for longer service life.

Note

These guns may

be

used

with

chlorl·

nated type solvents, but refer

to

Page

2 for additional warnings.

Important: This gun miiY be ueed

with

molt

common colltlng and flnlehlng

mite-

nolo. It is doolgnad

for

UIO

With

mHdly

corrosive and non

..

abrulve

materlale.

If

used

with

other highly corrosive or abra

..

olve motoriols, It muot

be

expected

that

frequent and thorough

clunlng

wiD

be

roquirad and

tho

nocesolty

for

roplecamant

of parts

wiD

be Increased.

INSTALLATION

To avoid damage

to

gun body, do

not

overtighten air hose connection

at

•r

Inlet.

UHtwowrencheslfneceiUry.

Attach

air hose

to

1/4"

NPS

air inlet

fitting

on gun handle. The air inlet

fitting

includes

a tapered seat and is designed

for

use

with
hose connections containing a similar seat.
If

using

an

NPT

typo

fitting

without

a

tapered seat, usa

two

wrenches

to

tighten.

Do

IIIII overtighten.

Sea

CMJtlotr

above.

Attach

fluid hose

to

3/8"

NPS

fluid inlet

fitting

on gun.

Note

Protective coating and rust Inhibitors
have been used

to

keep the gun In

good condition prior

to

shipment.

Before using

the gun, flush

it

with

solvent

so

that

these materials will be

removed from fluid passages.

Strain material through

60

or

90

mesh

screen. Adjust fluid prooaure

to

deliver

the
desired paint volume. Adjust air pressure
and

flow

to

provide a uniform dispersion

of

atomized paint throughout

the

pattern.

Keep air pressure

as

low

as

poaaible

to

minimize bounce • back and overspray.

Excessive

fluid

flow

will result in heavy
center spray patterns. Inadequate flows
may causa

the

pattemtospllt.

Soo

"Trouble-

shooting•,

Page

8,

if

any problems occur.

PREVENTIVE MAINTENANCE

To clean air cap and fluid tip, brush exterior
with a stiff

bristle brush.

II

nocOIHry

to

clean cap holes, usa a broom straw

or

toothpick.

Nev•

uae a wire

or

hard

lnltnJ..
ment. This may scratch or burr holes
causing a distorted spray pattam.

To clean fluid passages, remove excaaa
material

at source, than

fiuoh

with

a suit-

able solvent using a device ouch

ao

the
SolventSavar• lsoa Acceosorlool. Wipe
gun exterior

with

a solvent dampened cloth.

Never completely Immerse in solvent

as

this is detrimental

to

the

lubricants and

packings.

Note

When replacing the fluid

tip

or fluid

needle. replace

.tm1b

at

the

same
time. Using worn parts can cause
fluid leakage.

See

Chart 2. Also,

replace the noodle packing

~t

thia

time.

Ughtly

lubricate

the

threads

of

the

fluid

tip

before reassembling.

Torque

to

20-25 ft. lbs. Do

not

overtighten

the

fluid tip.

Toprovontdo-tothefluldtlpl31
or

fluid

-•1281,

be

ouro

to

either

11

pull

the

tri-r

end

hold while

tightening

or

loounlng

tho

fluid

tip

or

21

remove fluid

-e

adjuotlng

ocrow

(211

to

rollovoopring

-sure

agolnot-

collar.

SPRAY GUN LUBRICATION
Daily, apply a drop

of

SSL-1

0 spray gun

lube

at

trigger boal'ing stud

1161

and

the

stem

of

the

air valva (8) where

it

enters the

air valve

aoHmbly

1121.

Tho shenk

of

the

fluid noodle

1261

whore ~ enters the pock-

ing

nut

1141

should aloo be oiled. Tho fluid

noodle packing i

131

should

be

lubricated

periodically. Make sura the baffle

151

ond

retaining ring

111

threads are clean and free

of

foreign matter. Before

aesembUng

re·

taining ring

to

baffle, clean

the

threads

thoroughly, than add

two

drops

of

SSL-10

spray gun lube

to

threads. The fluid noadle

spring

1231

and air valva spring

171

should

be coated

with

alight

grease, making sure

that

any excess graaae will

not

clog the air

passagee. For beat results, lubricate

the

polntalndicated, daily.
A. Trigger Points

B.

Packing

C.

Adjuoting Valves

D.

Baffle Threodo

E.

Air

Valve Cartridge

c

Page 2 SB-2-290

This

manual

PREVENTING

attentiOn

to these sections.

contains

information that

EQUIPMENT

PROBLEMS.

SAFETY

Is

important for

To help you recognize this information, we use the following symbols. Plano pay particular

. .

you

to

PRECAUTIONS

know

and

understand.

This

information

relates

to

USER

SAFETY

and

WANIIN8

Important safety Information - A

that

may

cause

life.

The

following hazards mayoccurdurlnglhe normal useofthlaequlpmant. PlouereecllltefoiiOwlng

Fire

Inhaling

serious

Toxic

Substances

Explosion

Incompatible

Hazard

Materials

-

~

I

Injury

Solvent end

or

During

solvent8

and

eye

Certain

~

Haloganatod
example;

Trichloroethylene

with the

system

cousod

aluminum

an

haurd

or

loss

combustible

use

end

con

air

passages.

injury.

materials

there

is

contact

mathylene

aluminum

oornponants.

by these

can

equipment

cootlngs

be foroefully

hydrocarbon solvants -for

explosion.

of

con

-'"fly

while

cleoning

Some

moy

with the

chloride

are

not

that might

solvent8

become

I

¥,~~~~:]

lmportom lnfonno1lon

prevent

dem-

avoid a eftulltion that may

lnury.

be

highly

and

expallod

skin.

and

be

chemical

reacting

and

flommable

flushing,

from

can

n

1, 1, 1 -

used

with

lead

when sprayed.

solvents

be

harmful

chemically

The

violent

WANIINII

fluid

cause

inhaled,

compatible

in

many

reaction

to

to

oqu""'*"· or

or

--

caue

how

how

minor

I

Adequate-

accumulations

Smoking

Weer

Follow

supplied

Adequate-

accumulations
Use

sprayed

being

NIOSH

muet

eye

protection.

the raqu;,.,._

by

your

a

maek

or

...-.

sprayed end its

preecribod by

Guns
with these sofvants,

sprey

valves

sure

the_,

doubt

compatible,

approved.

with

Sblinlea

application

and

cupa.

they

con

or

date

as

to whather

contoct your

on

also

to
to

of

flommablevopors.

never

costing

of toxic

rsopirotor

Industrial

equipment-

st.!

Information that
cial

attention to.

chart

before

muet

be provldsd to ltoap

bo

ollowod

in

the

sprey

of

the

Moterial

Sefoty

material-""·

must

bo

provldsd

to

moterials.

whenever

Tho

maek

must

000081

obalioio.

hygienist

stoellntemlil pasaageways

However,

used

for the

or

not

such

all

oqulpmam

safely

a

costing

material

Check

be

ltoap the

there
bo

cornpotlble with the

Equlpmam

or

aafety expert, end be

aluminum

os

material

items

with these

moterial

you

or

cleonlng

supplier.

Note

you

should

pay

ualngthlaoqulpmant.

air

free

of

area.

spreyareo.

Data

Sl*l

air

free

of

Ia

a

chance

of

Inhaling

bo

used

uee

to

11111'1'(·

motorial

boos

used

in-

reguletore,

end

make

Reed

ff

In

IS

must

moy

Ia

widely

pumps,

before

solvenbo.

intand

material

spe-

-

General

Safety

Cumulative

Disorders

CTD's,

skeletal

involve

the

elbows,

neck & back.
tunnalsyndrome &

tendinitis

tennis

cuff

examples

Trauma

("CTD's"l

or

musculo-

disorders,

damage

hands,

wrist,

shoulders,

(such

elbow

syndrome)

of

to

Carpal

as

or

rotator
are

CTO's.

Improper

Use

disorders

the upper extramklas. Factors which

3.

4.

of

hand

CTD's

when

increose

1.

High

flaquency

2.

Excessive

or

pressing

Extreme

positions

ExC800ivo

5.

Tool

vibration.

6.

Repeated

7.

Working·in

CTD's

con

as

sewing,

operation

tools

may

{"CTD's").

ualng

the

risk

of

force,

with the

or

awkward

duration

preeeure

cold

also

be

gotf,

tennis

or

hand
developing a CTD

of

the activity.

such

temperatures.

caused

maintenance

cause

tools,

tend

as

gripping,

hands

and

finger,

wrist,

of

the activity.

on a body

part.

by such activities

bowrmg,

to

of

equipment.

to affect

msy

include:

pinching,

fingers.

or

name

trauma

arm.

a few.