Graco Series E Operation manual

307260

Rev. L

First choice when

quality counts.t

INSTRUCTIONS-PARTS LIST

INSTRUCTIONS

This manual contains important

warnings and information.

READ AND KEEP FOR REFERENCE.

Airless Spray Gun

4500 psi (31 MPa, 310 bar) Maximum Working Pressure

Model 210890, Series E

07413A

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441

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

Parts

2307260

Table of Contents

Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Warranty 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Phone Number 16. . . . . . . . . . . . . . . . . . . . . . . . . .

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.

WARNING

EQUIPMENT MISUSE HAZARD

Equipment misuse can cause the equipment to rupture, malfunction, or start unexpectedly and result

in serious injury.

DThis equipment is for professional use only.

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

DUse the equipment only for its intended purpose. If you are uncertain about usage, call your Graco

distributor.

DDo not alter or modify this equipment. Use only genuine Graco parts and accessories.

DCheck the equipment daily. Repair or replace worn or damaged parts immediately.

DDo not exceed the maximum working pressure of the lowest rated system component. This equip-

ment has a 4500 psi (31.0 MPa, 310 bar) maximum working pressure.

DDo not lift pressurized equipment.

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

expose Graco hoses to temperatures above 180_F (82_C) or below –40_F (–40_C).

DDo not use the hoses to pull the equipment.

DUse only Graco approved hoses. Do not remove hose spring guards, which help protect the hose

from rupture caused by kinks or bends near the couplings.

DUse fluids or solvents that are compatible with the equipment wetted parts. See the Technical

Data section of all the equipment manuals. Read the fluid and solvent manufacturer’s warnings.

DWear hearing protection when operating this equipment.

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

DDo not touch the heater during operation; it is very hot.

3307260

WARNING

FIRE AND EXPLOSION HAZARD

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

result in fire or explosion and serious injury.

DGround the equipment and the object being sprayed. See Ground the System on page 4.

DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid being

sprayed.

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

DElectrically disconnect all the equipment in the spray area.

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

DDo not turn on or off any light switch in the spray area while operating or if fumes are present.

DDo not smoke in the spray area.

DDo not operate a gasoline engine in the spray area.

DIf there is any static sparking while using the equipment, stop spraying immediately. Identify and

correct the problem.

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.

DKnow the specific hazards of the fluid you are using.

DStore hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,

state and national guidelines.

DAlways wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and

solvent manufacturer.

4307260

Installation

Ground the System

WARNING

FIRE EXPLOSION HAZARD

Before operating, ground the system as

explained below. Also read the section

FIRE AND EXPLOSION HAZARD on

page 3.

To reduce the risk of static sparking, ground all the

spray equipment used or located in the spray area.

Check you local electrical code and your equipment’s

individual instruction manuals for detailed grounding

instructions for your area and type of equipment and

be sure to ground all of this spray equipment:

DPump or sprayer: As instructed in your separate

pump or sprayer manual.

DAir compressor or hydraulic power supply: Follow

your local code.

DFluid hoses: Use only grounded hoses with a

maximum of 500 feet (150 m) combined hose

length to ensure grounding continuity.

DSpray gun: Obtain grounding through connection to

a properly grounded fluid hose and sprayer or

pump.

DFluid supply container: Follow your local code.

DObject being sprayed: according to local code.

DAll solvent pails used when flushing: Follow your

local code. Use only metal pails, which are

conductive. Do not place the pail on a

non-conductive surface, such as paper or

cardboard, which interrupts the grounding

continuity.

DTo maintain grounding continuity when flushing or

relieving pressure, always hold a metal part of the

gun firmly to the side of a metal pail, then trigger

the gun.

5307260

Installation

NOTE: Numbers and letters in parenthesis in the text

correspond to the reference numbers and letters in the

text and drawings.

WARNING

Be sure your system has a bleed-type master air

valve (pneumatic pumps only) and a fluid drain

valve. These two accessories help reduce the risk

of serious injury, including fluid injection, splashing

in the eyes or on the skin, or injury from moving

parts, if you are adjusting or repairing the pump or

gun.

DThe bleed-type master air valve relieves air

trapped between this valve and the pump after

the air regulator is shut off. Trapped air can

cause the pump to cycle unexpectedly.

DThe fluid drain valve assists in relieving fluid

pressure in the displacement pump, hose, and

gun; triggering the gun to relieve pressure may

not be sufficient.

1. Connect a grounded fluid hose to the gun inlet.

2. With no tip installed, start the pump/sprayer. Flush

it according to the instructions supplied with it.

Prime the system with the fluid you are using.

3. Relieve the pressure.

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 6.

4. With the gun safety latch engaged, unscrew the

retaining nut (B) of the tip/guard assembly

(18, 28), and install the gasket (28a) in the

retaining nut. Screw the tip/guard assembly firmly

onto the gun. Tighten with a wrench. See Fig. 1.

NOTE: Failure to install the tip gasket (28a) will

result in leaking.

5. Strain the fluid you are spraying if it contains

particles that could clog the spray tip.

Fig. 1

03958A

28a

1/4 npt(f)

6307260

Operation

Pressure Relief Procedure

WARNING

INJECTION HAZARD

Fluid under high pressure can be in-

jected through the skin and cause

serious injury. To reduce the risk of an

injury from injection, splashing fluid, or moving

parts, follow the Pressure Relief Procedure

whenever you

DAre instructed to relieve the pressure

DStop spraying

DCheck or service any of the system equipment

DInstall or clean the spray tips

1. Engage the gun safety latch.

2. Shut off the power supply to the pump and close

any bleed-type master air valves in the air supply.

3. Disengage the gun safety latch.

4. 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.

5. Engage the gun safety latch.

6. Open the pump fluid drain valve (required in your

system), having a container ready to catch the

drainage.

7. Leave the drain valve open until you area ready to

spray again.

If you suspect that the spray hose is completely

clogged, or that pressure has not been fully relieved

after following the steps above, very slowly loosen the

tip guard retaining nut or hose end coupling and relieve

pressure gradually, then loosen completely. Then

clear the tip or hose.

Start Up

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 6.

Whenever you stop spraying for a moment, engage

the gun safety latch. See Fig. 2.

WARNING

The wallet-sized warning card provided with this

gun should be kept with the operator at all times.

The card contains important treatment information

should an injection injury occur. Additional cards

are available at no charge from Graco Inc.

1. Start the pump. Adjust the fluid pressure so the

spray is completely atomized. ALways use the

lowest pressure necessary to get the desired

results. Higher pressure may not improve the

spray pattern and will cause premature tip and

pump wear.

2. If adjusting the pressure does not give a good

spray pattern, try another tip size. Be sure to

relieve pressure completely before changing tips.

3. Use a full-open, full-close trigger action. Hold the

gun about 14 in. (350 mm) from and at right angles

to the work surface. Do not swing the gun in an

arc. Practice to find the best length and speed of

stroke.

Fig. 2 03957A

safety latch in

OFF SAFE position

safety latch in

ON SAFE position

7307260

Operation

Adjusting the Spray Pattern

WARNING

To reduce the risk of a fluid injection injury, never

use the gun with the tip guard or trigger guard

removed.

To adjust the orientation of the spray pattern, relieve

the pressure. Engage the safety latch, and loosen

the tip guard retaining nut (B). Rotate the tip/guard

assembly (18, 28) to the spray pattern orientation you

desire. See Fig. 3.

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 6.

The spray tip orifice size and spray angle determines

the coverage and size of pattern. When more

coverage is needed, use a larger spray tip rather than

increasing fluid pressure.

Fig. 3 03958A

Tip/guard assembly

(18, 28) is oriented for

a vertical spray pattern

as shown.

CAUTION

Openings in the tip guard are designed to reduce

paint buildup on the guard while spraying. Any

damage to the sharp edges of the openings causes

paint to collect at that area. To reduce the risk of

damage, never hang the gun by the tip guard.

Cleaning or Clearing the Spray Tip

Clean off the front of the tip frequently during the day’s

operation and at the end of the work day. Always

relieve the pressure. Then, use a solvent soaked

brush to clean the spray tip and to keep fluid buildup

from drying and clogging the spray tip.

If the spray tip clogs while spraying, clear it as follows:

1. Engage the gun safety latch.

2. Turn the arrow-shaped handle on the tip (28) 180_

to the cleaning position.

3. Disengage the gun safety latch, and trigger the

gun into a grounded metal pail.

Fluid pressure should force out the clog.

4. Engage the gun safety latch, and turn the

arrow-shaped handle180_to the spray position.

5. Disengage the gun safety latch, and resume

spraying.

If the tip is still clogged, disassemble and manually

clean it. See page 10.

CAUTION

Never soak the entire gun in solvent. Prolonged

exposure to solvent can ruin the packings.

8307260

Operation

Flushing

NOTE: Flush the gun before the fluid being spraying

can dry in it.

WARNING

To reduce the risk of serious injury from fluid injec-

tion, splashing, or static sparking:

DBe sure the entire system and the flushing pails

are properly grounded.

DAlways hold a metal part of the gun firmly to the

side of a grounded metal pail when flushing.

DFollow the flushing procedure carefully.

1. Relieve the pressure.

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 6.

2. Remove the spray tip. See Fig. 3.

3. Flush the gun, and spray system with a compatible

solvent as instructed in your separate pump

instruction manual.

If Valve Will Not Stop Spraying

Check the clearance between the tip of the trigger and

the safety latch. See Adjusting the Trigger on page

11. Also, disassemble and clean the gun.

If Fluid Leaks Around Packing Nut

The packings and/or needle may need replacing. See

Parts on page 12.

9307260

Notes

10 307260

Service

Fig. 4

28a

03959A

Fig. 5

03962

See Fig. 4 and Fig. 5.

1. Relieve the pressure, and disconnect the hose.

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 6.

2. Remove the tip/guard assembly (18, 28) and the

tip gasket (28a).

3. Unscrew the nut (21). Remove the trigger

guard (23).

4. Unscrew the nipple (20).

5. Remove the locknut (9) and screw (8).

6. Swing the trigger (11) out of the way. Unscrew the

packing nut (6). Remove the valve stem (14). Use a

wire hook to pull the packings (10) and gland (5) out

of the body (22). See Fig. 5.

7. Unscrew the lower body (13) from the upper body.

Remove the spring (15), retainer (16), and ball (2).

See Fig. 4.

8. Clean and inspect parts. Replace worn or

damaged parts. Disassemble and manually clean

the tip/guard assembly (18, 28) if they are dirty.

NOTE: Always replace all four packings (10) and the

gland (5) at the same time.

9. Install the support (7), spring (15), retainer (16) and

ball (2) in the lower body (13). Screw the lower body

firmly into the upper body (22). See Fig. 4

10. Lubricate the packings (10) and gland (5). Install

these parts one at a time into the gun body (22).

Install the valve stem (14) and packing nut (6).

See Fig. 5.

11. Flip the trigger down and install the screw (8) and

locknut (9).

12. Screw the nipple (20) into the gun body (22).

13. Install the trigger guard (23) and secure with the

locknut (21).

14. Reinstall the tip gasket (28a) and the tip/guard

assembly (18, 28).

15. Adjust the trigger before using the gun. See

Adjusting the Trigger, on page 11.

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