Power Fist 8140600 Owner's manual

Paint Spray Gun

8140600

Owner’s Manual

Read all instructions before operating

8140600manual 10/15/09 1:12 PM Page 1

Technical Specifications

Air pressure: 25 to 45 PSI

Paint canister volume: 2 Quarts

Recommended hose size: 3/8"

Air consumption: 2 to 5 CFM with 1.0 mm nozzle;

6 to 8 CFM with 2.0 mm nozzle

Air inlet: 1/4" NPT

Safety Information

1. Keep work area clean. Cluttered areas invite injuries.

2. Keep children away from the work area. Do not allow them to handle

the tool.

3. Do not operate the paint spray gun while under the influence of alcohol

or medications. Read warning labels on prescriptions to determine if

your judgement or reflexes are impaired while taking drugs. If there is

any doubt, do not attempt to operate.

4. Do not spray near open flame, pilot lights, cigarettes, or any other heat

source. Solvents and coatings are highly flammable when painting or

cleaning. Industrial applications must follow OSHA requirements.

5. Read all information concerning coating products and cleaning

solvents. Chlorinated solvents such as 1-1-1 trichlorethane and

Methylene Chloride (a.k.a. methyl chloride) can chemically react with

aluminum and explode. Many paint sprayers contain aluminum. If in

doubt, contact the solvent or coating manufacturer.

6. Materials used when painting or cleaning may be harmful or fatal if

inhaled and/or swallowed. Once again, when spraying, always make

sure there is adequate ventilation. Use a mask or a respirator when

painting.

7. Check all seals before connecting to air supply. Make sure lid is fully

attached to cup, retaining ring is screwed past the first thread, air

pressure plug is tightened fully and air supply tube is firmly attached.

Never release the lid while the cup is pressurized.

8. Use eye protection. Coatings will cause eye irritation. Wear ANSI

approved chemical splash safety goggles. When cleaning, be especially

careful as solvents can be forcibly ejected from fluid and air passages.

8140600manual 10/15/09 1:12 PM Page 2

9. Dress safely. Protective gloves and non-skid footwear or safety shoes

are recommended when working with and operating the paint spray

gun. Don’t wear loose clothing or jewelry. They can get caught in

moving parts. Also wear a protective hair covering to prevent long hair

from getting caught in the paint spray gun.

10. Do not over reach. Keep proper footing and balance at all times.

11. Stay alert. Watch what you are doing. Use common sense. Do not

operate tools when you are tired.

12. Check damaged parts. Before use, any part that is damaged should be

carefully inspected to ensure that it will operate properly and perform

its intended function.

13. When servicing, use only identical replacement parts only.

14. Store idle equipment. When not in use, the paint spray gun should be

cleaned and then stored, fully assembled, in a dry location to reduce

rust. For safety, keep out of reach of children.

15. Maintain tools with care. Keep tools clean for better and safer

performance. Follow instructions for lubricating, cleansing and

changing accessories. Keep handles dry, clean and free from oil.

16. Outdoor extension cord. When air compressor is used outdoors, use

only round jacket extension cords intended for outdoor use. See

manufacturer’s manual for the AWG required for the compressor’s

amperage draw.

17. Be aware of air hoses and their connections. Don’t trip over hoses.

Make sure all connections are tight.

18. Be aware of other people. Never spray directly at people or animals.

Figure 1

8140600manual 10/15/09 1:12 PM Page 3

Assembly

The paint spray gun will require assembly. If any parts are missing or

broken, notify your nearest Princess Auto location.

• Air paint assembly (1)

• Cover assembly (1)

• Canister (1)

• Hose (2)

• Repair kit

1. Connect the black fluid hose to the fluid outlet (#B-11) on the cover

centrepost (#B-10) and secure using the hose wrench as shown in

figure 1.

2. Connect the other end of the black fluid hose to the bottom of the spray

gun head and secure using the hose wrench as shown in figure 1.

3. Connect the red air hose to the air connection (#A-02) located on the

regulator assembly.

4. Connect the other end of the red air hose to the air connection located

on the bottom of the gun handle.

5. Connect the handle (#B-13) to the top of the centrepost (#B-10)

assembly by turning it clockwise. (See figure 2.)

6. Connect the air hose from the compressor to the air connection (#A-02)

and secure. An air coupler may be needed between the compressor

hose and the air connection. (See figure 3.)

7. Set the air pressure at the compressor to approximately 45 PSI.

Figure 2

Figure 3

Adjusting

Cap

8140600manual 10/15/09 1:12 PM Page 4

Operation

1. Unscrew and remove the cover assembly from the

canister (#B-02) as shown in figure 4.

2. Prepare the paint or coating as per the

manufacturer’s instructions for air spray guns.

3. Fill the canister to the 3/4 full mark as shown in

figure 5. Do NOT overfill!

4. Lower and replace the cover assembly onto the

canister.

5. Set the compressor’s pressure regulator to

the lowest setting recommended by the paint

or coating manufacturer.

6. Connect the regulator’s air connection (#A-

02) to the air compressor’s hose. If leaking is

detected, disconnect the air hose and repair

before use.

Caution:

• When the canister contains fluid, always keep the paint spray gun

upright. This will prevent paint from contaminating potions of the gun

in which it is not intended to go.

• Always keep the cover (#B-04) tight when connected to the air source.

Spraying Techniques

For must uses, such as painting walls, benches or vehicles, the best results

are obtained by spraying thin even coats of paint. Let the layers dry in

between coats.

As with any manual process, practice leads to perfection. The following

are a few general rules that may be of help in perfecting your process.

• Use the lowest pressure setting recommended by the paint manufacturer

• Keep the gun perpendicular to the ground.

• Maintain a distance of about 8" from work as shown in figure 6

• Make smooth, thin and even strokes across the work

• Overlap each stroke by about 50% as in figure 7

• Let each coat dry before re-coating

Figure 4

Figure 5

8140600manual 10/15/09 1:12 PM Page 5

Lubrication

Before and after each use of the paint spray gun, perform the following

lubrication process, using a non-silicone, spray gun lubricant.

1. Put 2 or 3 drops of lubricant on the needle in front of the trigger. Tip

the gun backward and allow the lubricant to drip into the front of the

gun housing.

2. Put 2 or 3 drops of lubricant on the fan adjuster. Tip the gun backward

and allow the lubricant to drip into the front of the gun housing.

3. Put 2 or 3 drops of lubricant on the fan adjuster. Tip the bun backward

and allow the lubricant to drip into the front of the gun housing.

4. Put one drop of lubricant on the trigger stud and another on the trigger

screw. Work the trigger to allow the lubricant to coat the parts.

5. Put one drop of the lubricant on the regulator adjusting cap. Tip it

sideways and allow the lubricant to drip into the front cap.

Figure 8

Figure 6 Figure 7

8140600manual 10/15/09 1:12 PM Page 6

Maintenance

Needle wear

1. Visually inspect the needle tip for wear. Needle wear will cause the

paint pattern to be uneven. If needle wear is noted, replace the needle.

2. Unscrew and remove the adjusting screw. NOTE: Before unscrewing

the adjusting screw, place a mark on the adjusting screw where the

end of the housing intersects it. This will make re-adjusting the gun

easier after maintenance.

3. Using a pair of pliers or other suitable device, carefully pull and twist

the needle until it has been removed.

4. With an identical replacement needle, by hand, carefully insert it into

the housing and push until the tip has exited the hole in the air nozzle.

5. Replace the adjusting screw and readjust its setting to the position it

was in before removal. (See note for step 2.)

Canister gasket wear

1. Remove the cover assembly from the canister (#B-02) as described in

Operation.

2. Visually inspect the cover (#B-04) gasket for even depressions,

scratches, cracks and general appearance. The gasket is not replaceable.

If wear is noted, replace the cover as follows.

3. Remove the centrepost (#B-10) assembly. Retain the nut for

reassembly.

4. Remove the regulator assembly. Retain the nut for reassembly.

5. Remove and replace the cover with identical parts.

6. Reassemble the centrepost assembly to the cover.

7. Reassemble the regulator assembly to the cover.

Check and clean air cap / retainer ring holes

1. Unscrew the retainer ring and remove the air nozzle.

2. Verify the 4 holes around the needle hole are not blocked or restricted

by paint residue. If necessary, clean the holes by soaking the air nozzle

in solvent and blowing clear with pressurized air.

3. Replace the air nozzle and tighten the retainer ring.

8140600manual 10/15/09 1:12 PM Page 7

Cleaning

Warning:

• Always dispose of paints, coating and other chemicals in a proper and

responsible fashion. If you have questions regarding the proper disposal

of any chemical, contact the chemical manufacturer for instructions.

1. De-pressurize the canister (#B-02) and disconnect the hose.

2. Remove the cover assembly from the canister as described in

Operation.

3. Empty the paint or coating from the canister. Dispose of properly.

4. Pour a small amount of clean solvent (as specified by the paint

manufacturer) in the canister. See safety Safety Information #5.

5. Place the cover assembly into the canister and tighten until the

assembly is sealed.

6. Reconnect the air hose to the regulator assembly and pressurize the

cup.

7. Clean the paint spray gun by shaking it vigorously and spraying the

solvent though the gun.

8. Repeat steps 1 through 7 until the sprayed solvent appears clean and

clear.

9. After de-pressurizing, disconnect the regulator from the air supply.

10. Remove the cover assembly from the canister and dispose of the

surplus solvent.

11. Wipe the canister clean with a dry, lint free cloth.

Caution:

• For a very thorough cleaning, the canister ONLY may be fully immersed

in solvent. Do NOT leave in solvent for more than 24 hours as damage

may occur. Never immerse the paint sprayer in solvent. When cleaning,

brush solvent onto exterior parts only.

8140600manual 10/15/09 1:12 PM Page 8

01 Support

02 Air connection (2)

03 Latex mat

04 Valve body

05 O-ring

06 Screw

07 Spring

08 Spring plug

09 Air gauge

10 Adjusting valve

11 O-ring

12 Spring

13 Rear cap

14 Bolt

15 O-ring

16 Nut

17 Spring

18 Adjusting cap

19 Front cap

20 Washer

21 Rubber washer

22 Regulator body

Parts List A – Regulator Assembly

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01 Bottom

02 canister

03 Fluid tube

04 cover

05 Rubber washer

06 Latex gasket

07 Spring

08 Relief valve

09 Paint inlet plug

10 Centrepost

11 Fluid outlet

12 Nut

13 Handle

14 Regulator assembly

15 Screw

16 Check valve

17 Spring

18 Washer

Parts List B – Canister Assembly

8140600manual 10/15/09 1:12 PM Page 10

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