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Maintenance
18 311320H
Clean Spray Gun Procedure
Thoroughly flush gun block with gun cleaner
before removing valving rod or mixing compo-
nents from gun block. Also allow chemicals in
spray gun to cool before cleaning.
This procedure makes use of the 1-Quart or
3-Gallon Gun Service Kit.
1. Close both manual valves.
2. Remove gun from coupling block.
3. Attach service block of gun service kit to
spray gun, and then tighten using 5/16 in.
nut driver.
4. Pressurize container to 100 psi.
5. Open one manual valve on service block.
6. Trigger gun while holding against a
grounded waste container until there is a
fine, unobstructed mist of gun cleaner.
7. Release trigger of gun and 1-quart kit, and
close manual valves on service block.
8. Repeat steps 5-7 for other side of gun.
9. After initial cleaning, remove air cap and
flush a second time to ensure thorough
cleaning.
10.Remove service block of gun service kit
from spray gun.
11.Disconnect air supply.
12.Clean screens, check valves and screen
screw. See Filter Screw Removal and Ser-
vice procedure, page 19.
Inspect air cap, mixing chamber, and gun
block for build up of material and clean as
required.
Do not use metal cleaning devices to clean
plastic components.