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37 PIECE SPRAY GUN KIT
Model 93974
ASSEMBLY and OPERATING INSTRUCTIONS
®
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at http://www.harborfreight.com
TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.
Copyright © 2006 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.
For technical questions and replacement parts, please call 1-800-444-3353
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Table of Contents
Related Manuals for Central Pneumatic 93974
Summary of Contents for Central Pneumatic 93974
- Page 1 . 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. For technical questions and replacement parts, please call 1-800-444-3353...
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Page 2: Specifications
Wear an ANSI approved dust mask or respirator when working around chemical dusts, paints and mists. Do not overreach. Keep proper footing and balance at all times. Do not reach over or across running machines or air hoses. Page 2 SKU 93974 For technical questions, please call 1-800-444-3353... - Page 3 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. Do not smoke while spraying. Page 3 SKU 93974 For technical questions, please call 1-800-444-3353...
- Page 4 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. Page 4 SKU 93974 For technical questions, please call 1-800-444-3353...
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Page 5: Air Connection
When unpacking, check to make sure the parts listed on pages 14 and 16 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. - Page 6 Fluid Nozzle (4a) Paint Cup (34a) Large Spray Gun Figure 1 Pattern Control Knob (13) Air Cap Set (1S) Trigger (38) Fluid Control Knob (29) Air Inlet (40) Cup (47) Page 6 SKU 93974 For technical questions, please call 1-800-444-3353...
- Page 7 If it appears to thin, add a very small amount of thinner (not included). BE CAREFUL when thinning. Proceed slowly, adding very minimal amounts. NEVER exceed the manufacturer’s thinning recommendations. Page 7 SKU 93974 For technical questions, please call 1-800-444-3353...
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Page 8: Fan Direction And Pattern Adjustment
FIGURE 1 on page 6). By turning it counterclockwise (all the way open), the pattern will flatten. Turn the Pattern Control Knob clockwise for a round pattern. See FIGURE 3 below. FIGURE 3 Flat/Open Round/Closed Page 8 SKU 93974 For technical questions, please call 1-800-444-3353... - Page 9 (you see globs of paint), close down the Fluid Control Knob slowly, checking the mix- ture after each adjustment. See FIGURE 4 below. FIGURE 4 Too Coarse Correct Too Fine (Tighten) (Loosen) Page 9 SKU 93974 For technical questions, please call 1-800-444-3353...
- Page 10 Clean out the gun thoroughly after EVERY use, according to the instructions found on the next page. Page 10 SKU 93974 For technical questions, please call 1-800-444-3353...
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Page 11: Operation
Immediately follow the Maintenance instructions on page 13 and 14 to avoid paint quickly drying in your Spray Gun, making it difficult to clean. Page 11 SKU 93974 For technical questions, please call 1-800-444-3353... -
Page 12: Maintenance
Disposal: After cleaning your Spray Gun, properly dispose of your cleaning solutions according to the solution manufacturer’s direction and local hazardous waste standards. Page 12 SKU 93974 For technical questions, please call 1-800-444-3353... - Page 13 ’ 5 l i o " 4 " 4 l i a t t i , y t l l o Page 13 SKU 93974 For technical questions, please call 1-800-444-3353...
- Page 14 Parts List, Large Gun NOTE: Some parts are listed and shown for illustration purposes only and are not available individually as replacement parts. Page 14 SKU 93974 For technical questions, please call 1-800-444-3353...
- Page 15 Page 15 SKU 93974 For technical questions, please call 1-800-444-3353...
- Page 16 Parts List, Small Gun Note: When ordering parts from this diagram add an “A” suffix. For example Air Cap is part number 1A. Air Inlet Fluid Control Knob Pattern Control Knob Diagram Page 16 SKU 93974 For technical questions, please call 1-800-444-3353...
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Page 17: Warranty Card
LIMITED 1 YEAR 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 one year from the date of purchase. - Page 18 1. Dirt on one side of the fluid tip. (Clean the fluid tip.) 2. Holes on one side of the Air cap are plugged. (Clean the Air cap with a non-metallic point.) Page 18 SKU 93974 For technical questions, please call 1-800-444-3353...
- Page 19 4. Replace 5. Bent valve stem 5. Replace Fluid Leaking from 1. Packing Nut loose 1. Tighten without restricting Packing Nut 2. Packing worn or dry 2. Replace or lubricate (non-silicone) Page 19 SKU 93974 For technical questions, please call 1-800-444-3353...
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Questions and answers
Sprayer wont spray paint
The Central Pneumatic 93974 sprayer may not spray paint due to several possible issues:
1. Clogged Air Cap or Fluid Tip – Dry paint or debris may be blocking the air cap or fluid tip. Clean both using a non-metallic point.
2. Incorrect Air Pressure – If the air pressure is too low, increase it within the recommended PSI range (maximum 40 PSI).
3. Thick Paint Material – If the paint is too thick, thin it according to the manufacturer's instructions.
4. Insufficient Fluid Supply – Increase the fluid flow if there is not enough paint being delivered.
5. Dirty or Loose Air Cap – Clean and tighten the air cap if it is loose or contaminated.
6. Improper Cleaning – If the sprayer was not cleaned immediately after use, dried paint may have clogged internal passages, making it difficult to operate.
Cleaning and maintaining the spray gun as recommended will help prevent and resolve these issues.
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