Graco 257065 Paint Sprayer User Manual


 
Setup
12 313034A
Install Tip and Guard on Gun
1. Engage trigger lock.
2. Verify tip and guard parts are assembled in
order shown.
3. Screw tip and guard
assembly on gun. Tighten
retaining nut.
Spraying Techniques
Preventing Excessive Tip Wear
Spray should be atomized (evenly distributed,
no gaps at edges). Start at low pressure set-
ting, increase pressure a little at a time until you
see a good spray pattern, without tails.
Spray at lowest pressure that atomizes paint.
If maximum sprayer pressure is not enough for
a good spray pattern, tip is too worn. See
Reversible Spray Tip Selection Chart, page 15.
Adjust Spray Pressure
This sprayer is set up for most airless spraying
applications. Details on tip selection, tip wear, coat
thickness, etc. are provided on page 14.
Align setting indicator with function symbol on
Pressure Control knob, page 9.
Turning knob to right (clockwise), increases
pressure at gun.
Turning it left (counter-clockwise), decreases
pressure.
General spraying instructions are provided in
Getting Started with Basic Spraying Tech-
niques section of this manual, page 16.
ti8908a
retaining nut
black rubber gasket and
guard
tip
ti8911a
metal seat
Use tip to align seat
Tip must be pushed
all the way into guard
in guard
ti9574a
ti5606a
ti11981a
If tails persist when spraying at the highest
pressure, a smaller tip is needed or the
material may need to be thinned.
Motor only runs when gun is triggered. Sprayer
is designed to stop pumping when gun trigger
is released.
ti5592a
tails-gaps
at edges
pressure
good
spray pattern
too low