Central Pneumatic 91009 Manuel utilisateur

20 OZ. AIR GRAVITY SPRAY GUN

ASSEMBLY and OPERATING

INSTRUCTIONS

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit ourWeb site at http://www.harborfreight.com

For technical questions and replacement parts,please call 1-800-444-3353

Model 91009

manual or any artwork contained herein may be reproduced in any shape or form

without the express written consent of Harbor Freight Tools.

Page 2

SKU 91009

Specifications

SaveThis Manual

You will need the manual for the safety warnings and precautions,

assembly instructions, operating and maintenance procedures, parts list and

diagram. Keep your invoice with this manual. Write the invoice number on the

inside of the front cover. Keep the manual and invoice in a safe and dry place for

future reference.

Safety Warnings and Precautions

WARNING: When using tool, basic safety precautions should always be followed to

reduce the risk of personal injury and damage to equipment.

Read all instructions before using this tool!

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

2. Observe work area conditions. Do not use machines or power tools in damp or wet

locations. Don’t expose to rain. Keep work area well lit. Do not use air tools in the

presence of flammable gases or liquids.

3. Keep children away. Children must never be allowed in the work area. Do not let

them handle machines, tools, extension cords, or air hoses.

4. Store idle equipment. When not in use, tools must be stored in a dry location to

inhibit rust. Always lock up tools and keep out of reach of children.

5. Use the right tool for the job. Do not attempt to force a small tool or attachment to

do the work of a larger industrial tool. There are certain applications for which this

tool was designed. It will do the job better and more safely at the rate for which it was

intended. Do not modify this tool and do not use this tool for a purpose for which it

was not intended.

6. Dress properly. Do not wear loose clothing or jewelry as they can be caught in

moving parts. Protective, electrically non-conductive clothes and non-skid footwear

are recommended when working. Wear restrictive hair covering to contain long hair.

7. Use eye and ear protection. Always wear ANSI approved impact safety goggles.

Wear an ANSI approved dust mask or respirator when working around chemical

dusts, paints and mists. Wear appropriate ear protection.

Operating and Maximum PSI 40 PSI/ 50 PSI Max.

Average Air Consumption 5 CFM

Paint Capacity 20 oz.

Air Inlet 1/4” - 18 NPS

Nozzle Size 0.055”

Weight 1.5 Lbs. (when empty)

Page 3

SKU 91009

8. Do not overreach. Keep proper footing and balance at all times.Do not reach over or

across running machines or air hoses.

9. Maintain tools with care. Keep tools clean for better and safer performance. Follow

instructions for lubricating and changing accessories. Inspect tool cords and air hoses

periodically and, if damaged, have them repaired by an authorized technician.The

handles must be kept clean, dry, and free from oil and grease at all times.

10. Disconnect air supply. Disconnect air hose when not in use, when changing

accessories, and during maintenance.

11. Remove adjusting wrenches. Check that adjusting wrenches are removed from the

tool before attaching to the air source.

12. Avoid unintentional starting. Be sure the trigger is in the Off position when not in

use and before attaching to the air source. Do not carry any tool with your finger on

the trigger, whether it is attached to the air compressor or not.

13. Stay alert. Watch what you are doing, use common sense. Do not operate any tool

when you are tired.

14. Check for damaged parts. Before using any tool, any part that appears damaged

should be carefully checked to determine that it will operate properly and perform its

intended function. Check for alignment and binding of moving parts; any broken parts

or mounting fixtures; and any other condition that may affect proper operation. Any

part that is damaged should be properly repaired or replaced by a qualified

technician. Do not use the tool if any trigger does not operate properly.

15. Guard against electric shock. Prevent body contact with grounded surfaces such as

pipes, radiators, ranges, and refrigerator enclosures.

16. Replacement parts and accessories. When servicing, use only identical

replacement parts. Use of any other parts will void the warranty. Only use accessories

intended for use with this tool. Approved accessories are available from Harbor

Freight Tools.

17. Do not operate tool if under the influence of alcohol or drugs. Read warning

labels if taking prescription medicine to determine if your judgement or reflexes are

impaired while taking drugs. If there is any doubt, do not operate the tool.

18. Use proper size and type extension cord. If an extension cord is required, it must

be of the proper size and type to supply the correct current to the compressor without

heating up. Otherwise, the extension cord could melt and catch fire, or cause

electrical damage to the compressor. Check your compressor’s manual for the

appropriate size cord.

19. Maintenance. For your safety, maintenance should be performed regularly by a

qualified technician.

20. Compressed air only. Never use combustible gas as a power source.

21. Do not spray near open flames, pilot lights, stoves, heaters, or any other heat

source. Most solvents and coatings are highly flammable, particularly when sprayed.

Page 4

SKU 91009

22. Clean Sprayer with care. Use non-flammable solvents.

23. Do not smoke while spraying. Most solvents and coatings are highly flammable,

particularly when sprayed.

24. Read all of the information concerning coating products and cleaning solvents.

Chlorinated solvents (e.g. 1-1-1 Trichlorethylene and Methylene Chloride, also known

as methyl chloride) can chemically react with aluminum and may explode. Many paint

sprayers contain aluminum. If you have any doubt about potential chemical reactions,

contact the solvent or coating manufacturer.

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

swallowed. Only use in an area with adequate ventilation. Use a respirator or mask

when painting or using cleaning solvents.

26. Never release the sprayer lid while the cup is pressurized.

27. Never point a spray gun at a person or animal. Always properly mask all objects

that are not to be painted.

Note: Performance of the compressor (if powered by line voltage) may vary depending

on variations in local line voltage. Extension cord usage may also affect tool perfor-

mance.

Warning:The warnings,cautions,and instructions discussed in this instruction manual

cannot cover all possible conditions and situations that may occur. It must be under-

stood by the operator that common sense and caution are factors which cannot be

built into this product, but must be supplied by the operator.

Unpacking

When unpacking, check to make sure the parts listed on page 8 are included. If any

parts are missing or broken, please call Harbor Freight Tools at the number on the cover of

this manual as soon as possible.

WARNING: The brass components of this product contain lead, a chemical

known to the State of California to cause birth defects (or other reproductive

harm). (California Health & Safety code 25249.5, et seq.)

Page 5

SKU 91009

1. You will need to prepare a 1/4”air connector (sold separately) to connect to the air inlet

on the Spray Gun. First, wrap the 1/4” air connector (not included) with pipe thread

seal tape before threading it into the Air Inlet (32). Connect the 3/8”ID Air Source Hose

to the Spray Gun.

2. Set the air pressure on your compressor to 40 PSI. Do not exceed the maximum air

pressure of 50 PSI.

3. Check the air connection for leaks and then disconnect the tool from the air source.

For best service you should incorporate a regulator and inline filter, as

shown in the diagram above. Hoses, couplers, regulators, and filters are all

available at Harbor Freight Tools.

Operation

Air Inlet (32)

Lid (29)

Trigger (37)

Fluid Control Knob (12)

Cup (28)

Air Adjusting Valve (31)

Air Nozzle (1)

Vent (30)

Spray Regulator Knob (20)

Sprayer

1/4” NPS

Page 6

SKU 91009

Operation (continued)

Note: Before spraying, mask all objects you do not want sprayed and lay cloths (not included)

on the floors.

Operation

Note: We recommend you practice on scrap material to adjust and get familiar with the Gun.

1. Connect the air source hose to the Air Inlet (32). Turn on your air compressor to the

recommended air pressure of 40 PSI. Do not exceed the 50 PSI maximum.

2. Pull the Trigger (36) slowly and move the Spray Gun in parallel strokes to the object

being painted. Keep the distance from the object being painted at 4” to 12”. This may

slightly differ depending on the flow adjustment and the material being sprayed.

3. Release theTrigger(36) after eachforward movement;pulltheTrigger (36) againon the

returnmovement.

4. When using a vertical pattern, move the Spray Gun in a horizontal motion; with a

horizontal pattern move the Spray Gun in a vertical motion. A round pattern requires a

greater distance from the object being painted.

5. When finished, release the Trigger (36) and disconnect from the air source. The Cup

(28)andSpray Gunmay stillhold air pressure,fire theSpray Gun towardscrap material

until all of the pressure is expended. Before removing the Lid (29), open theVent (30).

Spray Gun Adjustments (Refer to page 5 and the Assembly Drawing on page 9)

Note: We recommend you practice on scrap material to learn the fine tune adjustments.

1. To change the spray pattern, turn the Spray Regulating Knob (20) and/or adjust the Air

Nozzle (1).

2. To regulate the amount of material entering the Spray Gun, adjust the Fluid Control

Knob (12).

3. To fine tune the air flow, adjust the Air Adjusting Valve (31).

Filling the Cup (28)

Warning! The Spray Gun must be disconnected from the air source when filling or refilling

material.

1. Attach the Cup (28) to the Spray Gun. Make sure to include the Filter (27) in between

the Cup (28) and Gun Body (8) during assembly.

2. Remove the Lid (29) off the top of the Cup (28) of the Spray Gun.

3. Fill the Cup (28) with the appropriate material and replace the Lid (29) on the top of the

Cup (28). Make sure the Lid (29) is securely tightened. Make sure the Vent (30) is

closed.

Page 7

SKU 91009

Troubleshooting

Maintenance

Disconnect from the air source.

1. Remove the Lid (29).

2. Pour residual paint into the paint container and seal it.

3. Pour non-flammable paint thinner into the Cup (28).

If water based paint was used, you can use water.

4. Secure the Lid (29) to the Cup (28) and shake the liquid in the cup.

5. Connect to the air source and turn on the air compressor.

6. Spray the liquid onto a piece of scrap material until the spray material is free of paint.

7. Repeat if necessary.

8. Remove the entire Cup (28) by un-threading it. Check the Filter (27) in the Gun Body

(8). Ifit isnot clean,use the Brush(33) toclean it. Replace the Filter (27)and threadon

the Cup (28). See FIGURE 3 on page 8.

9. Use the Brush (33) to clean the recessed, hard to reach areas of the Gun.

Repair

Clean fluid needle in thinner

or replace nozzle set

Soak in thinner and clean the

nozzle set and internal needle

Turn the air nozzle180°, clean

fluid tip pin and air circuit

Refill material, tighten parts,

clean or replace parts

Clean, tighten, or replace

parts

Trouble

Gun leaks from fluid tip

Spray pattern

sickle shaped

Spray pattern

oval shaped

Spray pattern flutters

Material bubbles or boils

in the paint cup

Cause

Foreign substance between the fluid tip

and needle preventing a good seal

Air circuit clogged

Dirt on fluid pin tip or air outlet

Not enough material in the cup,

fluid nozzle not tight, needle sealing

damaged, nozzle set dirty or damaged

Too much air flowing through the paint

channel to the cup, loose paint nozzle,

loose air nozzle, clogged filter, defective

gasket, or damaged nozzle insert

Note: Have any of the following internal repairs completed by an authorized service technician.

Note: Toclean, change,orreplace theFluid Nozzle

(2), use the Wrench (35) FIGURE 2, to the

right.

FIGURE 2

Page 8

SKU 91009

1 Air Nozzle 20 Spray Regulator Knob

2 Fluid Nozzle 21 Screw

3 Air Ring 22 Trigger Bolt

4 Piston Pad 23 Locking Plate

5 Compression Ring 24 Bolt

6 Needle Seal Spring 25 Bolt

7 Air Piston Seal 26 Paint Connector

8 Gun Body 27 Filter

9 Paint Needle 28 Cup

10 Paint Piston Spring 29 Lid

11 Nut 30 Vent

12 Fluid Control Knob 31 Air Adjust. Valve Assy.

13 Air Piston Box 32 Air Inlet

14 Air Piston Packing 33 Brush

15 Air Piston 34 Hex Adapter

16 Piston Ring 35 Wrench

17 Air Piston 36 Trigger

18 Air Piston Spring

19 Spray Regulator Screw

NOTE: Some parts are listed and shown for illustration purposes only and are not available

individually as replacement parts.

PLEASE READTHE FOLLOWING CAREFULLY

THEMANUFACTURER AND/OR DISTRIBUTORHASPROVIDEDTHE PARTS DIAGRAMINTHIS

MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBU-

TOR MAKES ANY REPRESENTATION ORWARRANTY OF ANY KINDTOTHEBUYERTHAT HE

OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS

QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER

AND/ORDISTRIBUTOREXPRESSLYSTATESTHATALLREPAIRSANDPARTSREPLACEMENTS

SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSEDTECHNICIANS AND NOT BYTHE

BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER

REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING

OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.

Parts List

FIGURE 3

Filter (27)

Cup (28)

Gun Body (8)

Part No. Description Part No. Description

Page 9

SKU 91009

Assembly Drawing

Page 20 For technical questions, please call 1-800-444-3353. SKU 67450

90 Day Warranty

Harbor Freight Tools Co. makes every effort to assure that its products meet high quality

and durability standards, and warrants to the original purchaser that this product is free from

defects in materials and workmanship for the period of 90 days from the date of purchase. This

warranty does not apply to damage due directly or indirectly, to misuse, abuse, negligence or

accidents, repairs or alterations outside our facilities, criminal activity, improper installation,

normal wear and tear, or to lack of maintenance. We shall in no event be liable for death,

injuries to persons or property, or for incidental, contingent, special or consequential damages

arising from the use of our product. Some states do not allow the exclusion or limitation of

incidental or consequential damages, so the above limitation of exclusion may not apply to

you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS

OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.

To take advantage of this warranty, the product or part must be returned to us with

transportation charges prepaid. Proof of purchase date and an explanation of the complaint

must accompany the merchandise. If our inspection veries the defect, we will either repair or

replace the product at our election or we may elect to refund the purchase price if we cannot

readily and quickly provide you with a replacement. We will return repaired products at our

expense, but if we determine there is no defect, or that the defect resulted from causes not

within the scope of our warranty, then you must bear the cost of returning the product.

This warranty gives you specic legal rights and you may also have other rights which vary

from state to state.

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353

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