Graco 980 User manual

308810

Rev. F

8066B

Model 980P

240100 Model 980P, without fluid set

240103 Model 980P, with # 3 fluid set

Model 980S

Includes 1-quart (1 liter) cup

240090 Model 980S, without fluid set

240093 Model 980S, with # 3 fluid set

240094 Model 980S, with #4 fluid set

240095 Model 980S, with #5 fluid set

240098 Model 980S, with #3 fluid set , flat bottom cup

8065A

INSTRUCTIONS–PARTS LIST

INSTRUCTIONS

This manual contains important

warnings and information.

READ AND KEEP FOR REFERENCE.

Model 980

Non-Bleeder Style Turbine Spray Guns

50 psi (0.35 MPa, 3.5 bar) Maximum Inlet Fluid Pressure

100 psi (0.7 MPa, 7 bar) Maximum Inlet Air Pressure

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

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

 

Table of Contents

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

Setup 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shutdown 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Spraying Techniques 13. . . . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts

Model 980S 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Model 980P 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accessories 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Standard Warranty 26. . . . . . . . . . . . . . . . . . . . . .

Graco Phone Number 26. . . . . . . . . . . . . . . . . . . . . . . . . .

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.

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.

Ground the equipment.

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.

When flammable liquid is sprayed or used for flushing or cleaning the equipment, the turbine

must be placed at least 20 feet (6.1 m) away from areas where hazardous concentrations of

flammable vapors are likely to occur.

Use additional air hose if necessary to ensure that the turbine is operated in a clean, dry, well

ventilated area.

Never place the turbine inside a spray booth! Use this equipment outdoors or in extremely well

ventilated areas.

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 off 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

 

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 your distributor.

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

Check equipment daily. Repair or replace worn or damaged parts immediately.

Do not exceed the maximum working pressure of the lowest rated system component. See the

Technical Data on page 25.

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

Technical Data on page 25 for wetted parts.

Do not use hoses to pull equipment.

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

expose Graco hoses to temperatures above 82C (180F) or below –40C (–40F).

Wear hearing protection when operating this equipment.

Do not lift pressurized equipment.

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

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

Follow the Pressure Relief Procedure on page 12 if the fluid nozzle clogs and before cleaning,

checking or servicing the equipment.

Tighten all fluid connections before operating the equipment.

Check the hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.

WARNINGWARNING

INSTRUCTIONS

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.

Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or

fluids containing such solvents in the turbine spray system, which contains aluminum and/or

galvanized-coated parts. Such use could result in a serious chemical reaction, with the possibility

of explosion, which could cause death, serious injury, and/or substantial property damage.

 

Setup

Connect the Fluid and Air Supply

NOTES:

The HVLP Cart/Compressor provides the air supply

for the remote pressure pot.

Circled letters in Fig. 1 indicate hose line

connections.

NOTE: Model 980 HVLP spray guns differ from

traditional non-bleeder guns by the constant low

velocity airflow designed to prevent restriction and

plugging of aircap orifices.

1. Connect gun air supply hose (A) between turbine

air outlet (B) and gun air inlet (C). DO NOT use

wrench to tighten connections; hand tighten only.

See Fig. 1.

2. If using a spray gun cup (D):

Connect cup to gun fluid inlet (E).

If using accessory remote pressure pots (F):

Connect fluid supply hose (G) between remote

pressure pot fluid outlet (H) and gun fluid inlet (E).

Connect pressure pot air hose (J) between

pressure pot air regulator inlet (K) and the cart

compressor air outlet.

CAUTION

Model 980 non-bleeder style spray guns are for

use with Graco GTS Turbine Systems. Do not use

with previous models of Graco or Croix turbines.

Such use will dramatically shorten turbine life.

Install the Fluid Set

Complete spray guns are available with #3, #4, or #5

fluid sets. To install other fluid sets, perform the

following steps. See Fig. 2.

1. Remove air cap retaining ring (28). Discard

packaging (not shown). Remove detente plate and

spring (26).

2. Remove fluid regulator assembly (18, 19, 20) and

spring (21) from back of gun.

3. Fully insert needle assembly (14) into back of fluid

manifold (6).

4. Perform needle adjustment procedure steps 2 to 5

of Replacing and Adjusting the Needle on

page 16.

5. Perform needle packings adjustment procedure

steps 4 thru 8 of Adjusting the Needle Packings

on page 17.

Fig. 1 8068A

21/2-gallon remote pressure pot2-quart remote pressure pot

cup setup for spray gun

 

Setup

Fig. 2 05289

Prepare the 980 Cup Gun for Pressure

Feed

1. Remove air pressure tube (31) from air stem (34).

See parts drawing on page 22.

2. Hold fluid inlet fitting (7) with wrench and remove

cup assembly (32).

3. Remove air stem (34) from gun body (1).

4. Apply medium strength threadlocker to set screw

(30) and assemble to gun body.

Prepare the Fluid

1. Always strain fluid before you spray. This includes

color, reducer, and hardeners.

2. Use slower-drying reducer or thinner to

compensate for faster drying time from warm

turbine air. Do not over reduce.

Paint Reduction —Automotive Type Finishes

Reduce and catalyze all paint to manufacturer’s

specifications. Compensate for faster turbine drying

time by using reducer one-step slower than

conventional air spray.

Paint Reduction —Industrial or Domestic

Coatings

Reduce and catalyze all paint to manufacturer’s

specifications. If no reductions are given, first

thoroughly mix fluid to be sprayed. Gradually mix in

reducer, testing fluid for correct spraying consistency.

Test consistency, remove stir stick from thinned paint.

Consistency is right when first drops from stir stick are

about one second apart.

 

Setup

Fill the Cup or Remote Pressure Pot

Spray Gun Cup

WARNING

The spray gun cup is pressurized by the gun’s air

supply. To reduce the risk of serious injury from

pressurized fluid or accidental spray from the gun,

always turn off the air supply to the gun before

removing the spray gun cup.

Fill cup 3/4 full to keep air pressure tube clean. Install

cover. Under-cup cover has latch (H) to secure it to

cup.

8066B

Fig. 3

Accessory Remote Pressure Pot

WARNING

The accessory remote pressure pots remain pres-

surized until pressure is manually relieved. To

reduce the risk of serious injury from pressurized

fluid or accidental spray from the gun, always

relieve pressure in the pressure pot before loosen-

ing or removing the cover.

1. Relieve remote pressure pot pressure as follows

(see Fig. 4):

a. Turn off air supply to pressure pot.

b. 21/2-gallon remote pressure pot:

Pull pressure relief valve ring (206c) until

pressure is completely relieved.

2-quart remote pressure pot:

Turn out pressure relief knob (113) one turn.

Wait until pressure is completely relieved

before removing cover. Close knob.

02882A

Fig. 4

206c

113

2 quart

8069A

21/2gallon

2. Remove pressure pot cover and fill. Secure cover.

NOTE: 2-quart remote pressure pot only:

Lightly coat cover threads with petroleum jelly.

CAUTION

If the 2-quart remote pressure pot is accidentally

tipped over or held at too great of an angle, fluid

may leak into the air regulator and cause damage.

Take precautions to avoid this. If fluid does get into

the regulator, clean immediately.

CAUTION

Do not tighten the pressure pot cover more than

hand-tight. Excessive tightening may damage the

cover gasket.

 

Setup

Prepare the Surface

To achieve proper adhesion, make sure the surface to

be sprayed is completely clean.

Turbine Operation

Sparking can be expected in the normal operation

of the turbine motor. Sparks can ignite fumes from

flammable liquid, dust particles, and other

flammable substances in the spray area. This can

cause serious injury and property damage. Be sure

to follow the precautions below:

When flammable liquid is sprayed or used for

flushing or cleaning equipment, the turbine must

be placed at least 20 feet (6.1 m) away from

areas where hazardous concentrations of

flammable vapors are likely to occur.

Use additional air hose if necessary to ensure

that the turbine is operated in a clean, dry, well

ventilated area.

Never use or place the turbine inside a spray

booth! Use this equipment outdoors or in

extremely well ventilated areas.

Avoid all ignition sources such as static

electricity from plastic drop cloths, open flames

such as pilot lights, hot objects such as

cigarettes, arcs from connecting or

disconnecting power cords, and arcs from

turning light switches on and off. Extinguish or

remove all sources of ignition.

WARNING

1. Turn turbine on a few minutes before spraying to

warm-up.

NOTE: Turn turbine off when not in use. Turbine

does not shut off automatically.

2. Be sure the turbine filter is clean before operating.

See Turbine Filter Maintenance on page 13.

HVLP Compressor/Cart Cold Weather

Operation

The HVLP compressor/cart uses a diaphragm

compressor. When new, the diaphragm may become

stiff in cold weather. If cold enough, the diaphragm will

not allow the compressor motor to start (the unit will

hum). If this occurs, follow these steps:

1. Turn turbine and compressor OFF.

2. Unplug turbine from power source.

3. Pinch and remove filter by hand. Clean or replace

if dirty.

4. Hand spin cooling fan on compressor for a few

revolutions.

5. Reinstall filter.

6. Plug in turbine.

7. Turn turbine and compressor ON. If necessary,

repeat procedure.

Adjust the Pattern Direction and Shape

Spray pattern direction and shape are determined by

3 different positions of the air cap. See Fig. 5. Rotate

air cap as needed to achieve desired pattern.

NOTE: Do not loosen air cap retaining ring to change

patterns unless air cap is set to its widest pattern. See

Fig. 10 on page 9.

vertical pattern

horizontal pattern

Fig. 5

round pattern

02847

 

Setup

Adjust the Spray Pattern

Select fluid set for fluid to be sprayed. If needed, see

page 10 to determine correct fluid set.

WARNING

Do not exceed the gun’s 50 psi (0.35 MPa,

3.5 bar) Maximum Inlet Fluid Pressure and

100 psi (0.7 MPa, 7 bar) Maximum Inlet Air

Pressure. Higher pressures can cause parts to

rupture and result in serious injury or property

damage.

Establish the Correct Fluid Flow

1. Turn fluid adjustment knob (21) counterclockwise

until no restriction of trigger movement is felt.

See Fig. 6.

8070A

Fig. 6

2. For remote pressure pot, hold gun parallel to floor

and adjust fluid pressure at 8 to 10 inch (203 to

254 mm) fluid stream. See Fig. 7.

For 2-quart remote pressure pot:

Set at 4 to 6 psi (0.28 to 0.42 bar).

For 21/2-gallon remote pressure pot:

Set at 8 to 10 psi (0.56 to 0.70 bar).

NOTE: Heavier fluids or longer fluid hoses require

greater pressures.

WARNING

Over-pressurizing the accessory remote pres-

sure pots can cause serious injury. To reduce

the risk, never exceed 50 psi (0.35 MPa,

3.5 bar) Maximum Inlet Fluid Pressure.

Fig. 7 8071A

8 to 10 in.

(203 to 254 mm)

3. If further gun fluid adjustment is needed, turn fluid

adjustment knob (21) clockwise to reduce volume

of fluid output. See Fig. 8.

Fig. 8 8072A

CAUTION

Restricting the trigger and fluid needle travel by

continuously spraying with the fluid adjustment

knob closed (turned clockwise), will cause

accelerated abrasive wear on the fluid needle and

wear on the trigger.

For best results, adjust fluid flow at the pressure

source or use a different size needle/nozzle/air cap

combination.

 

Setup

Establish the Correct Air Flow

4. Test spray pattern and atomization while holding

gun about 6 to 8 inches (150 to 200 mm) from test

piece.

5. Air Control Valve (M) on end of turbine hose

controls both atomizing air and pressure in spray

gun cup. See Fig. 9. Adjust air control valve as

needed.

Fig. 9

02850

NOTES:

Control over-spray mist by using only as much air

as necessary to spray fluid. Lighter fluids require

less air.

If atomization is still unacceptable, fluids may be

thinned further or a different fluid set may be

required. Refer to page 10 to determine fluid set or

page 5 to prepare fluid.

Adjust the Pattern Size

Change pattern size by turning air cap retaining ring in

for a wide pattern or out for a narrow pattern.

See Fig. 10.

wider

spray

pattern

turn air cap

retaining ring in

Fig. 10

normal

spray

pattern

narrower

spray

pattern

air cap flush

with fluid nozzle

turn air cap

retaining ring out

02851

Turning air cap in too far will retard atomization.

Turning air cap out too far stops fluid or causes flutter.

 

Setup

Contractor Fluid Set Chart

Use this chart to determine Fluid Set for specific contractor application. See Fig. 11.

Fluid Set Components

Fluid Set

P/N & Size

(A)

Air Cap

(B)

Nozzle

(C)

Needle

Type of

Fluid**

Fluid Usage

240112

#2 (0.8 mm)

240490 192911 192916 light

14 to 18 sec.

Fine finish work with stains, lacquers, water-

borne lacquers

240113*

#3 (1.3 mm)

240491 192912 192917 light–medium

18 to 22 sec.

Medium speed application with lacquers,

enamels, urethanes, and varnish

240114

#4 (1.8 mm)

240492 192913 192918 medium

20 to 26 sec.

Medium to high speed industrial finishes

240115

#5 (2.2 mm)

240493 192914 192919 heavy

22 to 26 sec.

Heavy output with lacquer and enamels, latex

and oil wall paints

240116

#6 (2.5 mm)

240494 192915 192920 heavy

26+sec.

Wax base stripper, sound deadeners, latex

paint, multi color

* Standard fluid set

** Fluid measured with a #4 Ford cup (Part No. M70702)

Automotive Fluid Set Chart

Use this chart to determine Fluid Set for specific automotive application. See Fig. 11.

Fluid Set Components

Fluid Set

P/N & Size

(A)

Air Cap

(B)

Nozzle

(C)

Needle

Fluid Usage

240117

0.5/0.5M

M70434

0.5 mm

M70446 M70453 Ultra fine finish with automotive touch-up,

spot jobs

240118

0.7/0.7M

M70437

0.7 mm

M70447 M70455 Fine finish work with all automotive finishes, color

matching, automotive base coat

240113*

#3 (1.3 mm)

240491 192912 192917 Normal output with enamels, urethanes, zinc

chromate, automotive primers

* Standard fluid set

Multi-hole air cap

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