Reversible Spray Tip; Pressure Control Knob - Graco 16N657 Operation - Repair - Parts

Reversible Spray Tip

Always perform Pressure Relief Procedure before
adjusting spray tip position.
In the event that particles or debris clog the spray tip,
this sprayer is designed with a reversible spray tip that
can be used to quickly and easily clear the particles and
resume spraying as quickly as possible.
• Always point the reversible spray tip
forward when spraying.
• When particles or debris get caught in the tip, it can
be reversed to quickly clean the tip.
• See Unclogging Spray/Tip Guard Assembly
(page 14) for detailed instructions.
ti16992a
ti14991a
ti14985a
ti14991a
Spray Tip Reversed
Spray Tip Forward
(SPRAY position) (UNCLOG position)
8

Pressure Control Knob

ti16705a
Minimum Pressure Setting
• To reduce overspray, always spray at lowest pres-
sure that results in an acceptable spray pattern.
• Spray test pattern and adjust pressure to get
desired coverage.
• With some materials, if pressure is set too low, no
material may spray out. Turn pressure control knob
up.
• Thin materials sprayed at high pressure settings
may cause the sprayer to enter an operational mode
designed to protect it from overheating. This mode
is noticeable by the sprayer sounding like it is slow-
ing down and will result in a poor spray pattern.
ti15510a
ti15510a
To exit this mode, turn pressure control knob
down to lowest pressure setting that results in
an acceptable spray pattern.
• If spraying in low pressure range, there may not be
enough pressure to clear the plug. Turn pressure
control knob up to clear the plug.
See Choosing Pressure Control Knob Setting on
page 12 for recommendations on the setting for your
job.
Common Procedures
ti16704a
Maximum Pressure Setting
NOTICE
3A2589D