Graco PT2500 Operation manual

   

INSTRUCTIONS–PARTS

LIST

307–711

Rev. M

Supersedes L

and PCN M

1/4 GALLON PER MINUTE, 120 V

AC, 60 HZ

PT2500

Electric

Airless Paint Sprayer

3000 psi (21.0 MPa, 210 bar) Maximum Working Pressure

Model 218–796, Series E

Basic

Sprayer without hose or gun.

Model 218–501, Series C

Complete

Sprayer with hose and gun.

U.S.

Patent No. 4,616,982

U.K. Patent No. 2,165,591

Other Foreign Patents Pending

Always Professional Results



GRACO INC. P.O. BOX 1441

MINNEAPOLIS, MN

55440–1441

COPYRIGHT

1995, GRACO INC.

Graco

Inc. is registered to I.S. EN ISO 9001

This

manual contains important

warnings and information.

READ AND RETAIN FOR REFERENCE





Welcome

to Graco’

s Painter

’

s T

eam

Before

you use the

PT2500 Sprayer,

please read this entire instruction manual.

the manual contains important information that will help you operate the sprayer

safely and ef

ficiently

, and will help you keep the sprayer in top operating

condition.

Table

of Contents

PT2500

Sprayer Description

. . . . . . . . . . . . . . . . . . . .

Warnings 4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Setup 7

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Startup 8

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance 12

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Application

Methods

16.

. . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 17

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Repair

Instructions

19.

. . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts

Drawings and Lists

21.

. . . . . . . . . . . . . . . . . . . . . .

Graco

Phone Number

24.

. . . . . . . . . . . . . . . . . . . . . . . . .

Technical

Data

24.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Warranty 24

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Manual

Change Summary

This

manual was updated to include the changes from

PCN M.

CAUTION

A torque wrench is needed to properly check and

tighten

the valves and screws on this sprayer

. Failure

to torque these parts at the specified intervals (see

page 12) will result in leaking and damage to the

sprayer.

French 185–956

Spanish 185–961

German 186–041

Greek 186–045

Korean 186–049

English 185–953

Danger Labels

The

DANGER label shown on below is also on your sprayer

. If

you have painters who do not read that language, order one of

the following labels to apply to your sprayer

. Apply the label at A

for the best visibility

. Order the labels directly from your Graco

distributor without charge.

Liquids

can be injected into the body by high

pressure airless spray

leaks – especially hose leaks.

Keep

body clear of the nozzle. Never stop leaks with any part of the

body.

Drain all pressure before removing parts.A

void accidental trig

gering

of gun by always setting safety latch when not spraying.

Never spray without a tip guard.

In case of accidental skin injection, seek immediate

“Surgical

reatment”.

Failure to follow this warning can result in amputation or serious

injury.

FIRE

AND

EXPLOSION HAZARD

SKIN INJECTION

HAZARD

READ AND UNDERSTAND ALL LABELS AND INSTRUCTION MANUALS BEFORE USE

Spray

painting,

flushing or cleaning equipment with flammable liq

uids

in confined areas can result in fire or explosion.

Use

outdoors or in extremely well ventilated areas. Ground equip

ment,

hoses, containers and objects being sprayed.

Avoid

all ignition sources such as

static electricity from plastic drop

cloths,

open flames

such as pilot lights, hot objects such as ciga

rettes,

arcs from

connecting or disconnecting power cords or turn

ing

light switches on and off.

Failure

to follow this warning can result in death or serious injury

 

Sprayer

Description

KEY

A Hydraulic

pump

Rac IV DripLess tip guard

and spray tip

Pressure control knob

Hydraulic oil fill cap

ON/OFF switch

18 Motor

21 Diaphragm

Paint pump

27 Strainer

Drain tube

Outlet valve

Bypass valve

67 Outlet

101

Paint hose

102

Spray Gun







102

101

















Decrease the pressure (counterclockwise).

Increase the pressure (clockwise).

Open the valve (counterclockwise).

Close the valve (clockwise).

Motor

The

sprayer has a 1/2 hp, 120

, 60 HzAC, single phase,

1725

rpm motor (18).

The motor is supplied with a three-

wire power supply cord and a three-prong plug. The

sprayer

ON/OFF switch is located on the side

of the mo

tor.

The motor drives the hydraulic pump. The motor runs

continuously

when it

is turned on to keep the paint at the

desired

pressure.

Paint Pump

The

paint pump (22) is immersed into a 5 gallon paint pail,

so the pump is actually being pressure fed without the

mess

and trouble of pouring paint into a hopper

Hydraulic Pump

The hydraulic pump (A) is located inside the hydraulic

reservoir. The motor drives an eccentric bearing which

pushes

the piston in and out of the hydraulic pump. The

pump

reciprocates the hydraulic fluid to

operate the dia

phragm.

Diaphragm

The diaphragm (21) separates the hydraulic and paint

portions

of the paint pump. Hydraulic oil causes the dia

phragm to move up and down almost 30 times per sec-

ond,

no matter what pressure you are spraying at.

Pressure Control Knob

The paint pressure is regulated by turning the pressure

control knob (4) clockwise to increase the pressure and

counterclockwise to decrease the pressure.

Bypass V

alve

The

bypass valve (66) has two

functions: (1) to assist in

priming the paint pump during initial startup, and (2) to

provide positive relief of paint pressure from the gun,

hose,

and sprayer

Paint Hose

One electrically-conductive, nylon paint hose (101) is

supplied

with the sprayer Model 218–501. This 25 foot (7

hose has a 1/4 inch ID, 1/4 npsm (fbe) couplings and

spring

guards on both ends.

Spray Gun, Reverse-A-Clean (RAC) IV T

ip Guard

and Spray T

The

spray gun supplied with Model 218–501

(102) has a

tough, lightweight plastic body. The gun has a trigger

safety lever which prevents accidentally triggering the

gun when the lever is set in the safe position. (See

WARNINGS,

page 4).

The

RAC IV T

ip Guard (B) uses high pressure fluid to un

clog

the spray tip without removing

it from the gun. (See

page

10). The RAC IV includes a safety

tip guard which

helps

reduce the risk of a fluid

injection injury

. A No. 215

spray

tip for use with latex paint is also includes.

4307-711

Symbols

Warning Symbol

WARNING

This

symbol alerts you to the possibility of serious

injury or death if you do not follow the instructions.

Caution Symbol

CAUTION

This

symbol alerts you to the possibility of damage to

or destruction of equipment if you do not follow the

instructions.

EQUIPMENT MISUSE HAZARD

Equipment

misuse can cause the equipment to rupture or malfunction and result in serious injury



This equipment is for professional use only



Read all instruction manuals, tags, and labels before operating the equipment.



Use the equipment only for its intended purpose. If you are not sure, call Graco T

echnical Assis

tance at 1–800–543–0339.



Do not alter or modify this equipment.



Check equipment daily

. Repair or replace worn or damaged parts immediately



Do not exceed the maximum working pressure of the lowest rated system component. Refer to

the

echnical Data

on page 24 for the maximum working pressure of this equipment.



Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the

Tech-

nical Data

section of all equipment manuals. Read the fluid and solvent manufacturer

’

s warn

ings.



Do not use hoses to pull equipment.



Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not ex

pose Graco hoses to temperatures above 82



C (180



F) or below –40



C (–40

F).



Do not lift pressurized equipment.



Comply with all applicable local, state, and national fire, electrical, and safety regulations.



Hearing protection is recommended when working around the sprayer. Refer to the

Technical

Data

section on page 24 for the sound data.

WARNING

INSTRUCTIONS

307-711 5

TOXIC FLUID HAZARD

Hazardous

fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the

skin, inhaled, or swallowed.



Know the specific hazards of the fluid you are using.



Store hazardous fluid in an approved container

. Dispose of hazardous fluid according to all local,

state and national guidelines.



Always wear protective eyewear

, gloves, clothing and respirator as recommended by the fluid

and solvent manufacturer

INJECTION HAZARD

Spray

from the gun, leaks or ruptured components can inject fluid into your body and cause ex

tremely serious injury

, including the need for amputation. Fluid splashed in the eyes or on the skin

can also cause serious injury



Fluid injected into the skin is a serious injury

. The injury may look like just a cut, but it is a serious

injury

. Get immediate medical attention.



Do not point the gun at anyone or at any part of the body



Do not put your hand or fingers over the spray tip.



Do not stop or deflect leaks with your hand, body

, glove or rag.



Do not “blow back” fluid; this is not an air spray system.



Always have the tip guard and the trigger guard on the gun when spraying.



Check the gun dif

fuser operation weekly

. Refer to the gun manual.



Be sure the gun trigger safety operates before spraying.



Lock the gun trigger safety when you stop spraying.



Follow the

Pressure Relief Procedure

on page 8 if the spray tip clogs and before cleaning,

checking or servicing the equipment.

T

ighten all fluid connections before operating the equipment.



Check the hoses, tubes, and couplings daily

. Replace worn or damaged parts immediately

. Do

not repair high pressure couplings; you must replace the entire hose.



Fluid hoses must have spring guards on both ends, to help protect them from rupture caused by

kinks or bends near the couplings.

WARNING

6307-711

FIRE AND EXPLOSION HAZARD

Improper

grounding, poor ventilation, open flames or sparks can cause a hazardous condition and

result in a fire or explosion and serious injury



If there is any static sparking or you feel an electric shock while using this equipment,

stop

spraying immediately

Do not use the equipment until you identify and correct the problem.



Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid

being sprayed.



Keep the spray area free of debris, including solvent, rags, and gasoline.



Electrically disconnect all equipment in the spray area.



Extinguish all open flames or pilot lights in the spray area.



Do not smoke in the spray area.



Do not turn on or of

f any light switch in the spray area while operating or if fumes are present.



Do not operate a gasoline engine in the spray area.

WARNING

MOVING

ARTS HAZARD

Moving

parts, such as the air motor piston, can pinch or amputate your fingers.



Keep clear of all moving parts when starting or operating the pump.



Before servicing the equipment, follow the

Pressure Relief Procedure

on page 8 to prevent the

equipment from starting unexpectedly

 

Setup

1. Prepare the paint according to the manufactur-

er’s

recommendations.

This is probably the most important step

toward trouble-free spraying!

Remove any skin that may have formed on the top

of the paint. If necessary

, thin the paint. Finally

strain the paint through a fine nylon mesh bag

(available at most paint dealers) to remove par

ticles that could clog the spray tip.

2. Install a spray tip and RAC IV tip guard on the

spray

gun as instructed in manual 307–848.

3. Connect

the hose and gun.

Connect the other end

the hose to the sprayer

Check the hydraulic oil level.

Unscrew the fill cap

(5).

The oil should be 25 mm from the top

of the plate.

If the oil is low, fill as necessary with lightweight hy-

draulic oil; use only Graco Hydraulic Oil, Part No.

218–797.

Install the fill cap. See Fig. 1.

5. Check

the electrical service

which must be 120 V

60 HzAC,

15 Amp (minimum). Be sure the electrical

outlet

is properly grounded.

ou can use up to 100 ft (30 m) of 3 wire, 14

gauge (minimum) extension cord. Longer exten

sion cords may af

fect the sprayer performance.

Use more spray hose, not longer extension cords.

Do not remove the third (grounding) prong of the

plug, and do not use an adapter

6. Plug in the sprayer. First be sure the ON/OFF

switch (11) is OFF and the pressure control (4) is

turned

fully

counterclockwise

. Plug the sprayer into

grounded outlet that is at least 20 feet (6 m) away

from

the spray area to reduce the chance of a spark

igniting

spray vapors or dust particles.

Fig. 1

inch

(25 mm)



Fig.







Decrease

pressure (counterclockwise).

Increase

pressure (clockwise).





8307-711

Startup

CAUTION

The

wallet sized warning card provided with the gun

should

be kept with the operator at all times. The

card

contains important information on reducing the risk of

a fluid injection injury, and treatment information

should an injection injury occur. Additional copies of

this

card are available at no cost.

Pressure Relief Procedure

INJECTION

HAZARD

The system pressure must be manually

relieved to prevent the system from

starting or spraying accidentally

. Fluid

under high pressure can be injected through the

skin and cause serious injury

. T

o reduce the risk of

an injury from injection, splashing fluid, or moving

parts, follow the

Pressure Relief Procedure

whenever you:



are instructed to relieve the pressure,



stop spraying,



check or service any of the system equipment,



or install or clean the spray tip.

WARNING

Shut of

f the sprayer and unplug it.

Hold a metal part of the gun firmly to the side of a

grounded metal pail, and trigger the gun into the

pail to relieve pressure.

Lock the trigger safety lever

4. T

urn the bypass valve

counterclockwise

one turn

to drain paint back into the pail.

If you suspect that the spray tip or hose is completely

clogged, or that pressure has not been fully relieved

after following the steps above

, VER

Y SLOWL

Y loos

en the tip guard retaining nut or hose end coupling to

relieve pressure gradually

, then loosen completely

Now clear the tip or hose obstruction.

1. Open the bypass valve (66) ONE turn counter-

clockwise.

Do not place the pump intake in the

pail

yet.

See Fig. 3.

2. Turn the pressure control fully (4) clockwise to in-

crease

pressure. See Fig. 3.

3. Remove the inlet strainer (27) and place your hand

over

the inlet valve to be sure it is

drawing a vacuum.

NOTE: If the inlet valve (26) is not drawing a vacuum,

turn

the sprayer OFF

. T

urn the sprayer over

. Press down

on the stem (A) inside the inlet

valve lightly with a small

screwdriver,

and pour about a teaspoon of mineral spirits

or solvent into the valve. See Fig. 4. Release the valve

and

turn the sprayer upright. With the pressure turned

up,

turn

on the sprayer

. This should free any

sticking parts in

the pump. Now check again for a vacuum. Shut off the

sprayer

and install the inlet strainer (27).

4. Place the paint pump assembly into a properly pre-

pared

5 gallon pail of paint.

5. Turn

the sprayer ON and

allow the paint to circulate

through

the bypass valve (4) for one or two minutes.

NOTE: If the paint does not circulate back into the

pail,

turn

down the pressure and turn the motor on

and of

f sev

eral

times to help prime the sprayer

307-711 9

Startup

6. Turn the bypass valve (66) clockwise (finger tight)

close it; this allows the pump to build up pressure.

Fig.

Fig. 4













Decrease

pressure

(counterclockwise).

Increase pressure (clockwise).

Open (counterclockwise).

Close (clockwise).









7. Release the trigger safety lever and trigger the gun

onto

a piece of paper to check the spray pattern. Ad

just

the pressure setting to obtain the best atomiza

tion and spray pattern.

Always use the lowest

pressure necessary.

Excessive pressure causes

premature

tip wear and pump wear

NOTE: If

you cannot obtain a good spray pattern or ade

quate

atomization, your paint may be too thick. Thin the

paint

according to the manufacturer

’

s recommendations

until

you can get good atomization.

8. Whenever

you stop spraying, even for a moment,

ways

set

the trigger safety lever to prevent acciden

tally

trigger the gun.

9. Whenever you stop spraying for more than a mo-

ment, or if you must leave the sprayer unattended,

shut

it of

f and follow the

Pressure Relief Procedure

page 8.

NOTE: The

sprayer will not restart

if it was left pressur

ized

after shutting it off. Relieve pressure, then start

the

sprayer.

Fig. 5 







Lubricate

the threads.

orque to 170–200 in-lb (19–23 N.m.)

orque to 320–360 in-lb (36–41 N.m.)



 

10.

After

the first 3 to 5 hours of operation

torque the

four

screws (25) on the bottom of the paint pump (22)

170–200 in-lb (19–23 N.m.) See Fig. 5.

11.

Also torque

the inlet valve (26) to 320–360 in-lb

(36–41

N.m.)

CAUTION

Failure

to properly tighten the inlet valve and

screws

the intervals indicated will result in oil leaking from

the hydraulic system into the paint, and can cause

costly

damage to the sprayer

12.

Repeat

these torques

after another

3 to 5 hours of

operation,

and then after each 25 hours of operation

(about

weekly).

startup procedure continued on page 10

 

Startup

CAUTION

Never start the electric motor with the inlet valve

removed

to avoid damaging the diaphragm.

13.

If you have a Reverse-A-Clean IV tip guard on your

gun

and the tip clogs while spraying,

release the gun

trigger, lock the trigger safety lever, and rotate the

spray

tip handle 180



. See Fig. 6.

14. Unlock the safety lever and trigger the gun into a

grounded metal waste container. Hold a metal part

the gun firmly to the side of the container to

reduce

the risk of static sparking and splashing. The fluid

pressure should force the obstruction from the tip.

Lock

the safety lever

15. Return

the handle to

the original position, unlock the

safety

lever, and resume spraying.

Fig. 6 

16.

the tip is still clogged

, lock the trigger safety lever

shut

f and unplug the sprayer

, and open the bypass

valve

one turn

counterclockwise

. Disassemble the

tip in the reverse order of assembly (see manual

307–848).

Thoroughly clean all parts in a compatible

solvent and inspect for wear or damage. Replace

parts as needed and reassemble. Be sure to use a

new

seal and gasket when changing tips.

17.

you have a

tip guard on your gun which is not self-

clearing,

follow step 12 on page 9.

18.

Spraying techniques are given on page 16.

19. Important maintenance procedures are given on

pages

12, 13, and 14.

Other manuals for PT2500

This manual suits for next models

Table of contents

Other Graco Paint Sprayer manuals

Graco

Graco Magnum DX 232735 Operating instructions

Graco

Graco QuickShot 20B473 Operating instructions

Graco

Graco Delta Spray 7031A Operation manual

Graco

Graco ALPHA 241619 Operation manual

Graco

Graco GH 833 249318 Operating instructions

Graco

Graco TurfLiner 826059 Instruction Manual

Graco

Graco 308640 Operation manual

Graco

Graco Monark Hydra-Spray D Series Operation manual

Graco

Graco 231-034 Datasheet

Graco

Graco 232903A User manual

Graco

Graco 231-353 Operation manual

Graco

Graco 510 Manual

Graco

Graco GH 311279D User manual

Graco

Graco TrueCoat 360 Project Series User manual

Graco

Graco Reactor 2 H-30 Instruction Manual

Graco

Graco GMAX ll 5900 Convertible Operating instructions

Graco

Graco Edge 257092 Operating instructions

Graco

Graco 245924 Guide

Graco

Graco Contractor ST Operation manual

Graco

Graco 309410 Quick start guide

Graco

Graco WB100 Operation manual

Graco

Graco 230-998 Operation manual

Graco

Graco Sharpe 309989F Parts list manual

Graco

Graco ultra 750 User manual

Popular Paint Sprayer manuals by other brands

SNOWJOE

SNOWJOE Sunjoe 24V-GS-LTW-RM Operator's manual

Binks

Binks SV100 Service manual

Fimco

Fimco LG-4-3-1 owner's manual

AG SPRAY

AG SPRAY FS-ATV-25BL owner's manual

Nordson

Nordson MicroMax 2 manual

Bonide

Bonide 051 Operation and service instructions

zogics

zogics Z-DAS instruction manual

KISANKRAFT

KISANKRAFT KK-KBS-165 Operation manual

Matrix

Matrix SG 650 Translation of the original instructions

Anest Iwata

Anest Iwata SGA-3 Installation, use & maintenance instruction manual

paasche

paasche VV Instructions and parts list

Carlisle

Carlisle DeVilbiss JGA-510 Service manual

Gardena

Gardena 11120 Operator's manual

Conrad

Conrad Hobby Airbrush K3 operating instructions

wiwa

wiwa 14025 R/F operating manual

DeVilbiss

DeVilbiss LUNA2i Operation manual

WAGNER

WAGNER W 125 manual

My Clean Buddy

My Clean Buddy PW018 user manual