Graco 390 Classic Model 24U105 Paint Sprayer User Manual


 
Setup
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Setup
1. Connect Graco airless hose to sprayer. Tighten
securely.
2. Connect other end of hose to gun.
3. Tighten securely.
4. Remove tip guard.
5. Check inlet strainer for clogs and debris.
6. Fill throat packing nut with TSL to prevent
premature packing wear. Do this each time you
spray.
7. Turn power OFF.
8. Plug power supply cord into a properly grounded
electrical outlet.
9. Turn prime valve down.
10. Place siphon tube set in grounded metal pail par-
tially filled with flushing fluid. See Grounding, page
11. Do steps 1- 6 of Startup, page 14, to flush out
storage oil shipped in sprayer. Use water to flush
water-based paint or mineral spirits to flush
oil-based paint and storage oil.
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Flush