HP AUTOMATIC XT SPAY GUNS 311051D - Manual (Page 19)

Daily Gun Care
311051D 19
General System Maintenance
• Perform Pressure Relief Procedure, page 17.
• Clean the fluid and air line filters daily.
• Check for any fluid leakage from the gun and fluid
hoses. Tighten fittings or replace equipment as
needed.
• Flush the gun before changing colors and whenever
you are done operating the gun.
Clean and Flush Gun
1. Perform Pressure Relief Procedure, page 17.
2. Shut off the gun fan and atomizing air.
3. Supply a compatible solvent to the gun fluid inlet.
4. Point the gun down into a grounded metal container,
and flush the gun with solvent until all traces of paint
are removed from the gun passages.
5. Perform Pressure Relief Procedure, page 17.
6. Disconnect the solvent supply.
7. Remove the air cap retaining ring and air cap.
8. Clean the air cap retaining ring, air cap, and fluid
nozzle with solvent.
9. Dip the end of a soft-bristle brush into a compatible
solvent. Do not continuously soak the brush's bris-
tles with solvent and do not use a wire brush.
10. With the gun pointed down, clean the front of the
gun, using the soft-bristle brush and solvent.
11. Scrub the air cap retaining ring, air cap, and fluid
nozzle with the soft-bristle brush (see F IG . 17). To
clean out air cap holes, use a soft implement, such
as a toothpick, to avoid damaging critical surfaces.
Clean the air cap and fluid nozzle daily, minimum.
Some applications require more frequent cleaning.
12. Install the air cap retaining ring and air cap.
13. Dampen a soft cloth with solvent and wring-out the
excess. Point the gun down and wipe off the outside
of the gun.
CAUTION
Trigger the gun or remove the piston cap whenever
you tighten or remove the nozzle. This keeps the nee-
dle seat away from the nozzle seating surface and
prevents the seat from being damaged.
F IG . 16:
TI4845a
F IG . 17:
TI8176a