Spraying Techniques - Graco Magnum SR7 Operation

Install Tip and Guard
1. Engage trigger lock.
2. Verify tip and guard parts are assembled in order as
shown below.
retaining nut
guard
tip
Use tip to align seat
.
in guard
ti9574a
3. Screw tip and guard assembly on
gun. Tighten retaining nut.
10
ti8923a
black rubber gasket and
metal seat
ti8911a
Tip must be pushed
all the way into guard
ti9255a

Spraying Techniques

Preventing Excessive Tip Wear
• Spray should be atomized (evenly distributed, no
gaps at edges). Start at low pressure setting,
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 12.
I
f tails persist when spraying at the highest
pressure, a smaller tip is needed or the material
may need to be thinned.
Adjust Spray Pressure
This sprayer is set up for most airless spraying applica-
tions. Details on tip selection, tip wear, coat thickness,
etc. are provided on page 11.
Motor only runs when gun is triggered. Sprayer is
designed to stop pumping when gun trigger is
released.
Align setting indicator with function symbol on Pressure
Control knob, page 7.
• 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 Techniques
section of this manual, page 13.
Setup
311984A