Manual For The 43760 Industrial Air Paint Spray Gun
Central Pneumatic Paint Spray Gun 43760 43760
User Manual: Manual for the 43760 Industrial Air Paint Spray Gun Industrial Paint Spray Gun
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Owner’s Manual & Safety Instructions Save This Manual Keep this manual for the safety warnings and precautions, assembly, operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the back of the manual near the assembly diagram (or month and year of purchase if product has no number). Keep this manual and the receipt in a safe and dry place for future reference. REV 15h NOTICE CLEAN IMMEDIATELY Clean the Spray Gun IMMEDIATELY after EVERY use, in between coats, and when it will be idle for more than 5 minutes. Delayed or inadequate cleaning will permanently clog the Spray Gun. Visit our website at: http://www.harborfreight.com Email our technical support at: productsupport@harborfreight.com When unpacking, make sure that the product is intact and undamaged. If any parts are missing or broken, please call 1-888-866-5797 as soon as possible. Copyright© 2000 by Harbor Freight Tools®. All rights reserved. No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing improvements, actual product may differ slightly from the product described herein. Tools required for assembly and service may not be included. Read this material before using this product. Failure to do so can result in serious injury. SAVE THIS MANUAL. NOTICE Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. Safety Table of Contents Safetye�����������������������������������������������������������������������2 Specifications............................................................5 Setup.........................................................................6 Operationa������������������������������������������������������������������9 Maintenancei������������������������������������������������������������15 Parts List and Diagram.............................................18 Warranty...................................................................20 Setup WARNING SYMBOLS AND DEFINITIONS This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. Indicates a hazardous situation which, if not avoided, will result in death or serious injury. Indicates a hazardous situation which, if not avoided, could result in death or serious injury. Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. Operation Addresses practices not related to personal injury. IMPORTANT SAFETY INSTRUCTIONS INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS The warnings and precautions discussed in this manual cannot cover all possible conditions and situations that may occur. It must be understood by the operator that common sense and caution are factors which cannot be built into this product, but must be supplied by the operator. Maintenance WARNING – When using tools, basic precautions should always be followed, including the following: Work Area a. Keep the work area clean and well lighted. Cluttered benches and dark areas increase the risks of electric shock, fire, and injury to persons. Page 2 b. Keep bystanders, children, and visitors away while operating the tool. Distractions are able to result in the loss of control of the tool. For technical questions, please call 1-888-866-5797. Item 43760 NOTICE Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. Do not overreach. Keep proper footing and balance at all times. Proper footing and balance enables better control of the tool in unexpected situations. d. Use safety equipment. Wear protective paint spraying gloves and a NIOSH‑approved respirator during use. Non‑skid safety shoes and a hard hat must be used for the applicable conditions. e. Always wear eye protection. Wear ANSI‑approved safety goggles. Tool Use and Care a. Do not force the tool. Use the correct tool for the application. The correct tool will do the job better and safer at the rate for which the tool is designed. b. Disconnect the tool from the air source before making any adjustments, changing accessories, or storing the tool. Such preventive safety measures reduce the risk of starting the tool unintentionally. Turn off and detach the air supply, safely discharge any residual air pressure, and release the throttle and/or turn the switch to its off position before leaving the work area. c. d. Check for misalignment or binding of moving parts, breakage of parts, and any other condition that affects the tool’s operation. If damaged, have the tool serviced before using. Many accidents are caused by poorly maintained tools. There is a risk of bursting if the tool is damaged. e. Use only accessories that are identified by the manufacturer for the specific tool model. Use of an accessory not intended for use with the specific tool model, increases the risk of injury to persons. Store the tool when it is idle out of reach of children and other untrained persons. A tool is dangerous in the hands of untrained users. Service a. Tool service must be performed only by qualified repair personnel. Setup b. Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair increases the risk of injury to persons as a result of being caught in moving parts. c. c. Operation a. Stay alert. Watch what you are doing and use common sense when operating the tool. Do not use the tool while tired or under the influence of drugs, alcohol, or medication. A moment of inattention while operating the tool increases the risk of injury to persons. Safety Personal Safety Use only lubricants supplied with the tool or specified by the manufacturer. Maintenance b. When servicing a tool, use only identical replacement parts. Use only authorized parts. Item 43760 For technical questions, please call 1-888-866-5797. Page 3 NOTICE Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. Safety Air Source a. Never connect to an air source that is capable of exceeding 200 psi. Over pressurizing the tool may cause bursting, abnormal operation, breakage of the tool or serious injury to persons. Use only clean, dry, regulated compressed air at the rated pressure or within the rated pressure range as marked on the tool. Always verify prior to using the tool that the air source has been adjusted to the rated air pressure or within the rated air‑pressure range. b. Never use oxygen, carbon dioxide, combustible gases or any bottled gas as an air source for the tool. Such gases are capable of explosion and serious injury to persons. Setup SAVE THESE INSTRUCTIONS. Symbol Definitions Symbol PSI Property or Statement Pounds per square inch of pressure Operation CFM Cubic Feet per Minute flow SCFM Cubic Feet per Minute flow at standard conditions Symbol Property or Statement WARNING marking concerning Risk of Eye Injury. Wear ANSI‑approved eye protection. WARNING marking concerning Risk of Respiratory Injury. Wear NIOSH‑approved respirator. NPT National pipe thread, tapered WARNING marking concerning Risk of Explosion. NPS National pipe thread, straight WARNING marking concerning Risk of Fire. Do not use solvents improperly. Maintenance Page 4 For technical questions, please call 1-888-866-5797. Item 43760 NOTICE Specific Safety Instructions 3. Do not spray near open flames, pilot lights, stoves, heaters, the air compressor, or any other heat source. Most solvents and coatings are highly flammable, particularly when sprayed. Maintain a distance of at least 25 feet from the air compressor. If possible, locate the air compressor in a separate room. 4. Read all of the information concerning coating products and cleaning solvents. Do not use chlorinated solvents (e.g. 1‑1‑1 trichloroethylene and dichloromethane, also known as methylene chloride) to clean spray guns. Many spray guns contain aluminum, which reacts strongly to chlorinated solvents. Contact the solvent or coating manufacturer as needed regarding potential chemical reactions. 5. RISK OF INJECTION - Do not point spray gun at any person or any part of the body. In case of skin injection, seek medical attention immediately. 6. Industrial applications must follow OSHA requirements. 7. Spraying hazardous materials may result in serious injury or death. Do not spray pesticide, acid, corrosive material, fertilizer, or toxic chemicals. 8. Paints and solvents may be harmful or fatal if swallowed or inhaled. Avoid prolonged skin contact with solvents or paints as they will irritate skin. After any contact, immediately wash off exposed area with hot, soapy water. 10. Install an in-line shutoff valve to allow immediate control over the air supply in an emergency, even if a hose is ruptured. 11. Air hose fittings may get hot during use. Allow fittings to cool before disconnecting. 12. WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities, contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: • Lead from lead-based paints • Crystalline silica from bricks and cement or other masonry products • Arsenic and chromium from chemically treated lumber Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles. (California Health & Safety Code § 25249.5, et seq.) 13. WARNING: The brass components of this product contain lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. (California Health & Safety Code § 25249.5, et seq.) Setup 2. Do not exceed maximum air pressure. 9. Attach all accessories properly to the tool before connecting the air supply. A loose accessory may detach or break during operation. Operation 1. Do not direct spray at people or animals. Safety Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. Specifications Item 43760 55 PSI 1/4 IN. – 18 NPS 1.8 mm Cup Capacity Air Consumption For technical questions, please call 1-888-866-5797. 1 quart 6 CFM @ 60 PSI Maintenance Maximum Air Pressure Air Inlet Nozzle Size Page 5 NOTICE Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. Safety Initial Set Up Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product. Note: For additional information regarding the parts listed in the following pages, refer to the Assembly Diagram near the end of this manual. Before Setup This air tool may be shipped with a protective plug covering the air inlet. Remove this plug before set up. Air Supply Setup Setup TO PREVENT SERIOUS INJURY FROM EXPLOSION: Use only clean, dry, regulated, compressed air to power this tool. Do not use oxygen, carbon dioxide, combustible gases, or any other bottled gas as a power source for this tool. Operation 1. Incorporate a filter, regulator with pressure gauge, in-line shutoff valve, and quick coupler for best service, as shown on Figure A on page 7 and Figure B on page 8. An in-line shutoff ball valve is an important safety device because it controls the air supply even if the air hose is ruptured. The shutoff valve should be a ball valve because it can be closed quickly. Note: Do not use an automatic oiler system or add oil to airline. The oil will contaminate the material being propelled, ruining the final result. 2. Attach an air hose to the compressor’s air outlet. 3. Connect the air hose to the air inlet of the tool. Other components, such as a coupler plug and quick coupler, will make operation more efficient, but are not required. Maintenance WARNING! TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION: Do not install a female quick coupler on the tool. Such a coupler contains an air valve that will allow the air tool to retain pressure and operate accidentally after the air supply is disconnected. Note: Air flow, and therefore tool performance, can be hindered by undersized air supply components. Page 6 4. The air hose must be long enough to reach the work area with enough extra length to allow free movement while working. 5. Close the in-line shutoff valve between the compressor and the tool. 6. Turn on the air compressor according to the manufacturer’s directions and allow it to build up pressure until it cycles off. 7. Open the in-line shutoff valve. 8. Adjust the air compressor’s output regulator so that the air output is enough to properly power the tool, but the output will not exceed the tool’s maximum air pressure at any time. Adjust the pressure gradually, while checking the air output gauge to set the right pressure range. 9. Inspect the air connections for leaks. Repair any leaks found. 10. If the tool will not be used at this time, turn off and detach the air supply and safely discharge any residual air pressure to prevent accidental operation. Note: Residual air pressure should not be present after the tool is disconnected from the air supply. However, it is a good safety measure to attempt to discharge the tool in a safe fashion after disconnecting to ensure that the tool is disconnected and unpowered. For technical questions, please call 1-888-866-5797. Item 43760 Item 43760 For technical questions, please call 1-888-866-5797. Maintenance A B D E F C G Shutoff Ball Valve Air Hose Filter Regulator Coupler and Plug* Air Cleaner / Dryer* Air Adjusting Valve* Description A D Function B F G *Optional components. Setup Isolates sections of system for maintenance Connects air to tool Prevents dirt and condensation from damaging tool or workpiece Adjusts air pressure to tool Provides quick connection and release Prevents water vapor from damaging workpiece For fine tuning airflow at tool C Operation B E Figure A: Portable Air Supply Setup Safety Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. NOTICE Page 7 For technical questions, please call 1-888-866-5797. A B C D E F G H Description B A Vibration Pads Anchor Bolts Shutoff Ball Valve Isolation Hose Main Air Line - 3/4″ min. Ball Valve Branch Air Line -1/2″ min. Air Hose B A Maintenance F E Function F G I I J Description J H *Optional components. Filter Regulator Lubricator* Coupler and Plug Leader Hose* Air Cleaner / Dryer* Air Adjusting Valve* N K I J K L M N O Non-lubricated Tools C C For noise and vibration reduction Secures air compressor in place Isolates sections of system for maintenance For vibration reduction Distributes air to branch lines To drain moisture from system Brings air to point of use Connects air to tool C D Operation Lubricated Tools L O Function M F Prevents dirt and condensation contamination Adjusts air pressure to tool For air tool lubrication Provides quick connection and release Increases coupler life Prevents moisture contamination For fine tuning airflow at tool H L Setup Page 8 Slope Safety Figure B: Stationary Air Supply Setup Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. NOTICE Item 43760 NOTICE Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. Safety Operating Instructions Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product. Inspect tool before use, looking for damaged, loose, and missing parts. If any problems are found, do not use tool until repaired. Workpiece and Work Area Set Up Lock Ring 2. Route the air hose along a safe path to reach the work area without creating a tripping hazard or exposing the air hose to possible damage. The air hose must be long enough to reach the work area with enough extra length to allow free movement while working. Nozzle 3. Before spraying, mask nearby objects not being sprayed and lay cloths (not included) on the floors. Pattern Adjustment Knob Fluid Knob Trigger Cup Locking Lever Cup Cover Air Inlet Setup 1. Designate a work area that is clean and well lit. The work area must not allow access by children or pets to prevent distraction and injury. Cup Mounting Yoke Cup Maintenance Operation Figure C: Components and Controls Item 43760 For technical questions, please call 1-888-866-5797. Page 9 NOTICE Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. Safety Before First Use NOTICE: Before first use, clean the Spray Gun thoroughly. If not removed, the material used for testing and corrosion prevention will contaminate paint. 1. Remove Nozzle by hand. 2. Depress Trigger to retract Fluid Needle, then remove Fluid Tip with spray gun wrench (sold separately). Release Trigger. Note: Do not bend Fluid Needle. 3. Remove Fluid Knob by hand, then remove Fluid Spring and Fluid Needle. Nozzle Setup Fluid Tip Note: To prevent damage to the passages, do not use metal objects to clean the Nozzle and Fluid Tip. 5. Clean inside of Spray Gun by pouring warm soapy water into the Nozzle opening, then run a flexible round brush (sold separately) through the passage between the Nozzle opening and Fluid Inlet. Fluid Needle Fluid Spring Fluid Inlet Fluid Knob Trigger Operation Figure D Note: Do not immerse Spray Gun Body in liquid. Do not allow liquid to enter the air inlet. 4. Place parts, other than Spray Gun Body, into container with warm soapy water. Allow to soak, then scrub parts, using brushes and toothpicks from spray gun cleaning kit (sold separately). Figure E 6. Wipe down Spray Gun Body with a clean cloth and warm soapy water. 7. Rinse Cup, along with any tubes or filters, in warm soapy water. 8. Make sure all parts are free from grease and oil. Repeat cleaning if necessary. 9. Rinse all parts and inside of Spray Gun, except Air Inlet, with warm water. 10. Thoroughly blow dry all parts and inside of Spray Gun with compressed air. 11. Reassemble Spray Gun, making sure to retract Fluid Needle when replacing Fluid Tip. Fluid Tip Selection The choice of Fluid Tip Set will vary according to the consistency of the fluid being sprayed. Consult paint manufacturer recommended spray tips and use Table A to select a Tip Set appropriate to the job. Table A: Fluid Tip Set Suggestions Moves Like Consistency Water, Alcohol Very Light Examples Suggested Tip Sets in mm Stains, Dyes, Thin Automotive Base 1.4-1.6 Maintenance Sugar Water, Simple Syrup Automotive Lacquers, Thin Woodworking, Clear Coats with a VOC of 3.5 or Higher Wood Standard Lacquers and Enamels, Clear Coats with a VOC of 2.1 or Lower, Primer Sealing Coats and Urethane Light Room Temperature Pancake Syrup Medium Latex Paint Heavy Latex Paint, High Build Primer 2.3 - 2.7 Glue Very Heavy Gel Coat, Industrial Glue 2.3 or Larger 1.6- 1.8 1.9-2.2 Note: Chart provided for reference only. Additional fluid tips sizes not included. Page 10 For technical questions, please call 1-888-866-5797. Item 43760 NOTICE Spray Gun Setup Adjustment TO PREVENT SERIOUS INJURY: Do not adjust or tamper with any control or component in a way not specifically explained within this manual. Improper adjustment can result in tool failure or other serious hazards. Safety Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. CAUTION! Keep hands away from Trigger while making adjustments. 1. Thread the Cup to the Gun Body and tighten until the Cup is securely in place. Note: This Spray Gun can be used for spraying oil-based or latex paints. Fluid Adjustment 7. Loosen Collar on Fluid Knob. Turn the Fluid Knob counterclockwise until it is open enough to show 3 or 4 threads. Paint Preparation and Filling Setup Note: Proper paint mixture is essential. Follow the manufacturer’s directions. Most paints will spray easily if they are thinned properly. 2. Thin the paint according to manufacturer’s directions and mix thoroughly. 4. Fill the Cup to 3/4 full. Close Cup. 5. Start the air compressor and set the regulator to needed pressure. Do not exceed maximum air pressure. Figure F 8. Fully depress the Trigger. Operation Paint 3. Carefully strain the paint through a paint strainer or a piece of cheesecloth. Figure G 9. Turn the Fluid Knob clockwise until it reaches a natural stopping point. 6. Test the consistency by spraying on a piece of scrap material. Maintenance If it still appears too thick, add a very small amount of thinner (not included) and mix thoroughly. Use the proper thinner for the type of paint. Thin CAUTIOUSLY. Proceed slowly, adding minimal amounts at a time. DO NOT exceed the manufacturer’s thinning recommendations. Figure H 10. Release the trigger. 11. Tighten Collar on Fluid Knob to lock fluid adjustment settings. Item 43760 For technical questions, please call 1-888-866-5797. Page 11 NOTICE Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. Air Adjustment Safety 12. Attach Spray Gun to spray gun regulator (sold separately). Use spray gun regulator to measure airflow PSI. 13. Adjust the air supply pressure during operation with the Trigger fully depressed and the Air Knob fully open. If reducing air pressure for specific areas, use the Air Knob. 14. To fine-tune airflow, turn Air Knob clockwise to lessen airflow pressure. Turn Air Knob counterclockwise to increase airflow pressure. Turn Pattern Knob counterclockwise (all the way open) to flatten the spray pattern. Turn it clockwise for a round spray pattern - see Figure K: Pattern Adjustment. Round/ Flat/ Closed Open Figure K: Pattern Adjustment Fan Direction Setup 16. To change the direction of the fan from horizontal to vertical, loosen the Lock Ring and turn the Nozzle 90°. Lock Ring Figure I: Air Knob Horizontal Fan Nozzle Pattern Adjustment Vertical Fan 15. Use the Pattern Knob to adjust the spray pattern. Operation Figure L: Fan Direction 17. After the adjustment, tighten the Lock Ring by hand. Figure J: Pattern Knob Maintenance Page 12 For technical questions, please call 1-888-866-5797. Item 43760 NOTICE 1. First, clean and prepare the Spray Gun according to the instructions under Before First Use on page 10 and Spray Gun Setup Adjustment on page 11. 2. Keep the Spray Gun upright and at a right angle to the workpiece See Figure M and Figure N. 3. Using two hands, one to steady the Cup and the other to operate the Spray Gun, aim Nozzle at the workpiece. CAUTION: DO NOT STOP WHEN SPRAYING. Spraying materials will start to set and dry as soon as they come in contact with the air. They will cause a permanent clog if not cleared immediately. If discontinuing spraying for more than half an hour, turn off the air supply, disconnect Cup from Gun Body and thoroughly rinse Cup and Gun Body with fresh, clean water. 4. Pull Trigger slowly and move Spray Gun in parallel strokes to the workpiece. Keep the distance from the workpiece at about 6″ to 9″, depending on the flow adjustment and the paint. Correct Gun Angle Move your arm, not just your wrist. Point gun directly towards the surface and maintain an even, steady distance and speed. Incorrect Gun Angle Do not pivot your wrist or wave the gun like a fan towards the wall. Figure M: Spray Gun Angle - top view Correct Gun Angle Incorrect Gun Angle 5. To avoid paint build up, start moving the Spray Gun before squeezing the Trigger. When finished with the stroke, release the Trigger while still moving the Spray Gun - see Figure O. Doing this will produce a smoother finish. Do not stop moving the Spray Gun while spraying. If the Spray Gun stops even briefly while spraying the paint will build up and run down the workpiece. Begin Squeeze Release End Stroke Trigger Trigger Stroke Figure O: Paint Stroke Triggering - top view Note: The stroke speed, the Fluid Knob adjustment, and the distance from the workpiece, will determine how much paint is being applied. Apply two thin coats rather than one thick coat. Setup IMPORTANT: Proper spraying technique is ESSENTIAL to achieve good results. Operation Spraying Technique Safety Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. 6. To prevent accidents, release trigger, detach air supply, safely discharge any residual air pressure, and again release trigger after use. Figure N: Spray Gun Angle - side view Item 43760 7. Clean the Spray Gun IMMEDIATELY after EVERY use, in between coats, and when it will be idle for more than 5 minutes. For technical questions, please call 1-888-866-5797. Page 13 Maintenance CAUTION! Air hose fittings may get hot. Allow fittings to cool before disconnecting, or wear gloves to prevent burns. NOTICE Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. Safety Cleaning WARNING! TO PREVENT FIRE, IF A FLAMMABLE SOLVENT NEEDS TO BE USED, ADHERE TO THE FOLLOWING: a. Follow solvent manufacturer’s clean up instructions and safety precautions. b. Flush Spray Gun a full hose length from air compressor. c. If collecting flushed solvents in metal container, transfer to nonmetal container, and flush metal container. d. Work far away from any ignition sources in a vapor free area. e. Keep class ABC fire extinguisher nearby. Solvent Selection Setup Follow the paint and solvent manufacturer’s recommendations for cleaning, solvent type, and disposal. IMPORTANT: Do not use mineral spirits with latex paints, doing so will make the paint very difficult to remove. After Every Use 1. Use solvent recommended by paint manufacturer. 2. Remove the Cup, along with any tubes or filters. Carefully scrape paint out of Cup. Dispose of excess paint properly, then clean Cup and accessories with solvent. Operation 3. Reduce air pressure to minimum, then fill the Cup with solvent and spray it through the Spray Gun into the spent solvent container, while shaking the Spray Gun. Once the Cup is empty, repeat the process until the solvent comes out clean. 4. Disconnect from the air source. 5. After disconnecting, point the Spray Gun into the spent solvent container and squeeze the Trigger again to make sure no air remains. 9. If switching from oil-based to latex paint, after cleaning with solvent, clean all parts with warm soapy water. 10. Rinse with warm water, then thoroughly blow dry all parts with compressed air. 11. Reassemble Spray Gun. 12. Use spray gun lubricant (sold separately) on EXTERNAL moving parts. (See Figure P) NOTICE: Do not use any kind of lubricant in air supply or air inlet. The lubricant will mix with paint, causing poor results. Trigger Shaft Note: Do not immerse Spray Gun Body in solvent. Do not allow solvent to enter the air inlet. Fluid Valve Packing Fluid Knob 6. Remove Nozzle by hand and soak it in solvent until it is clean. Use brush and toothpicks (sold separately) to remove any paint. Air Valve Packing Note: To prevent damage to the passages, do not use metal objects to clean the Nozzle. Maintenance 7. Wipe down Spray Gun Body with a clean cloth and solvent. 8. Make sure all parts are free from residual paint. Figure P Spent Solvent Disposal After cleaning, dispose of spent solvent according to the solvent manufacturer’s directions and local hazardous waste standards. Page 14 For technical questions, please call 1-888-866-5797. Item 43760 NOTICE Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. Safety User‑Maintenance Instructions Procedures not specifically explained in this manual must be performed only by a qualified technician. TO PREVENT SERIOUS INJURY: Detach the air supply and safely discharge any residual air pressure in the tool before performing any inspection, maintenance, or cleaning procedures. TO PREVENT SERIOUS INJURY FROM TOOL FAILURE: Do not use damaged equipment. If abnormal noise, vibration, or leaking air occurs, have the problem corrected before further use. Setup Inspection Note: These procedures are in addition to the regular checks and maintenance explained as part of the regular operation of the air-operated tool. BEFORE EACH USE, inspect the general condition of the tool. Check for: • loose screws, • damaged air supply hose, • misalignment or binding of moving parts, • cracked or broken parts, and • clogged nozzle or fluid tip, • any other condition that may affect its safe operation. Air Supply Maintenance Every day, perform maintenance on the air supply according to the component manufacturers’ instructions. Operation Storage Maintenance Store in a dry, secure area out of reach of children. Item 43760 For technical questions, please call 1-888-866-5797. Page 15 NOTICE Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. Safety Troubleshooting - Spray Pattern Diagnosis Note: The drawings on the left below resemble symptoms of spray pattern problems. Refer to the accompanying possible causes and likely solutions to the right. Problem Possible Causes Heavy center pattern Light center pattern Setup Heavy top/ bottom pattern 1. Pattern Knob partially closed. 2. The paint is too thick. 3. The air pressure is too low. 1. High air pressure. 2. Fluid Knob not open enough. 3. Pattern Knob open too far. 1. Reduce air pressure. 2. Open Fluid Knob. 3. Partially close Pattern Knob. 1. Nozzle plugged. 2. Nozzle loose or dirty seal. 3. Dried paint on Fluid Tip. 1. Clean Nozzle. 2. Clean and tighten Nozzle and seal. 3. Use a nonmetallic point to clean Fluid Tip. 4. Replace Fluid Needle and Fluid Tip. 4. Damaged Fluid Needle. 1. Dirt on one side of Fluid Tip. Pattern on right or left only Likely Solutions 1. Open Pattern Knob more. 2. Thin paint according to the manufacturer’s instructions. 3. Increase air pressure within the Operating Air Pressure. 2. Holes on one side of Nozzle are plugged. 3. Damaged Fluid Needle. Operation 1. 2. Jerky or Fluttering Spray 3. 4. Loose or damaged Nozzle. Paint level low. Obstruction in Fluid Inlet. Dry or loose Fluid Needle Packing Nut. 1. Use a nonmetallic point to clean Fluid Tip. 2. Use a nonmetallic point to clean Nozzle. 3. Replace Fluid Needle and Fluid Tip. 1. 2. 3. 4. Tighten or replace. Refill paint Cup. Backflush with solvent. Lubricate or tighten Packing Nut. Follow all safety precautions whenever diagnosing or servicing the tool. Disconnect air supply before service. Maintenance Page 16 For technical questions, please call 1-888-866-5797. Item 43760 NOTICE Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. Possible Causes 1. 2. 3. 4. 5. Will Not Spray 1. No pressure at Spray Gun. 2. Fluid Knob not open enough. 3. Fluid too thick. 1. Check air hoses. 2. Open Fluid Knob. 3. Thin fluid or increase air pressure. (Do not exceed maximum.) Overspray (Paint drifting to unintended objects.) 1. Improper application speed. 2. Improper distance from workpiece. 3. Too much air pressure. 1. Move moderately and parallel. 2. Adjust distance. 3. Reduce air pressure. Fluid Tip Leakage 1. Dirty Fluid Tip. 2. Broken Fluid Needle Spring. 3. Worn or damaged Fluid Tip. 1. Use a nonmetallic point to clean Fluid Tip. 2. Replace Fluid Needle Spring. 3. Replace Fluid Tip and Fluid Needle. Air Leaking from Nozzle 1. 2. 3. 4. 5. 1. 2. 3. 4. 5. Dirty Air Valve/Seat. Sticking Air Valve. Damaged Air Valve Spring. Worn/damaged Air Valve/Seat. Bent Air Valve Stem. 1. 2. 3. 4. 5. Refill. Hold upright. Clean Air Vent hole. Tighten Fluid Inlet connection. Adjust or replace Fluid Tip and Fluid Needle. Clean Air Valve/Seat. Lubricate Air Valve/Seat. Replace Air Valve Spring. Replace Air Valve assembly. Replace Air Valve Stem. Operation Low paint level. Cup tipped. Clogged Air Vent on Cup. Loose Fluid Inlet connection. Loose/damaged Fluid Tip/Seat. Likely Solutions Sputtering Spray Setup Problem Safety General Troubleshooting Chart Maintenance Follow all safety precautions whenever diagnosing or servicing the tool. Disconnect air supply before service. Item 43760 For technical questions, please call 1-888-866-5797. Page 17 NOTICE Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. Safety PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT 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/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE 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 and Diagram Setup Parts List Part Operation 1 2 3 4 5 14 15 16 22 23 24 32 33 34 Description Air Cap Set Fluid Nozzle Gun Body Trigger Stud Stop Ring Pattern Control Knob Fluid Control Knob Needle Spring Needle Packing Screw Needle Packing Ring Air Valve Packing Ring Trigger Air Inlet Screw Air Inlet Part 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Description Nipple Fluid Joint Screw Cap Fastener Cup Locking Lever Cup Cover Liquid Tube Cup Cover Gasket Cup Trigger Valve Assembly Fluid Control Assembly Pattern Control Assembly Vinyl Vent Tube Vent Port Maintenance Page 18 For technical questions, please call 1-888-866-5797. Item 43760 NOTICE Clean the Spray Gun IMMEDIATELY after EVERY use. Delayed or inadequate cleaning will permanently clog the Spray Gun. Latex paint hardens quickly and permanently inside Spray Gun. Maintenance Operation Setup Safety Assembly Diagram Record Product’s Serial Number Here: Note: If product has no serial number, record month and year of purchase instead. Note: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. Item 43760 For technical questions, please call 1-888-866-5797. Page 19 Limited 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 verifies 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 specific 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 • 1-888-866-5797
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