How to Repair a JD9®-C Spray Gun With an O-Ring Kit

Posted by Sprayer Depot on

Easy Steps to Repair a Greensmaster or JD9®-C Spray Gun

Maintenance and DIY repairs can reduce your downtime, keep operating costs down, and are fairly simple (in most cases). Both the JD9®-C and the Greensmaster Spray Guns are easy to maintain and repair. Our Kings Sprayers typically come with one of these brands of spray guns standard. 

If your spray gun is suddenly leaking, replacing the O-rings will usually fix it. We've outlined the steps below and included a how to video from our repairs department.

How to Repair a Greensmaster or JD9®-C Spray Gun

For this project you will need the following tools:

  • 10 millimeter socket
  • 10 millimeter wrench
  • Pick
  • Flathead screwdriver
  • Phillips screwdriver
  • Crescent wrench
  • O-Ring Kit

Steps:

  1. Remove the nozzle
  2. Remove the O-ring located inside the nozzle
  3. Replace it with a new ring that matches its size
  4. Use the Phillips screwdriver to loosen the set screw to remove the barrel
  5. Remove the O-ring with a pick and replace it with a new one of the same size
  6. Use the crescent wrench to loosen the barrel nut to remove the inner barrel
  7. Remove the Teflon seat and replace with new one
  8. Use the 10mm wrench to remove the outside nuts to remove the trigger fixture
  9. Use the crescent wrench to remove the nut in the back of the spray gun
  10. Remove the O-ring and Teflon seat inside using a pick and replace both
  11. Tighten the rear nut
  12. Now, time to put everything back into place, replace the spring fixture and then tighten back the inner barrel using the crescent wrench
  13. Use the screwdriver to tighten back the screw in the outer barrel
  14. Add the nozzle and make sure it's secured
  15. Place the trigger fixture back into place and tighten all the nuts
  16. Replace the second rear nut to adjust the spray and you are done!

Spray Gun Repair Video   

 

The Greensmaster and JD9®-C Spray Guns are similar in design and specifications. They both use the same nozzles and repair kits.

 

Repair Resources, Guides & How To Videos

Visit our Resources page for additional resources designed to help with common maintenance and repair needs. We're always just a phone call or email away and are happy to assist with questions you may have about your spray equipment!

 

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