Spray Techniques
6
311159A
4 To select correct nozzle for
your applications, consider
size of aggregate in material
and coarseness of spray pat-
tern. Remember the larger the
nozzle, the larger the pattern.
See
Nozzle Selection
•
More air produces a finer fin-
ish, less air a coarser finish.
When adjusting flow adjustment
nut (B), release trigger (C), then
adjust.
If adjusting while triggered,
needle will turn but provide no
adjustment.
If flow adjustment nut will not
turn, check to see if it is:
•
set to maximum adjustment, or
•
if there is material on threads.
Clean threads as needed.
Check material consistency
often. Material may thicken as it
sits and slow down production or
affect spray pattern. Thin with
water as needed to maintain
proper consistency.
C
B
ti4338a
Material Flow
Adjustment
Air Flow Adjustment
Preventing Material
Surge at Gun Trigger
For Continuous
Spraying
•
For a lighter spray pattern,
decrease material pressure at
sprayer.
•
For a heavier spray pattern,
increase material pressure at
sprayer.
•
Trigger gun.
•
To decrease air flow, close air
valve (A) (clockwise).
•
To increase air flow, open air
valve (A) (counter-clockwise).
NOTE:
Keep a small amount of
air flowing through air line and
gun tip to prevent material from
backing up needle
Pressure will build up in system
when you stop triggering gun. To
prevent material surge at
beginning of spray pattern:
•
when you first pull trigger, point
gun away from surface you are
spraying.
•
hold gun away from surface
and gradually work your way
closer to it.
•
trigger gun as little as possible
•
Engage trigger lock (D) to hold
trigger open and reduce
fatigue.
B
ti4339a
ti4000a
A
ti4006a
D
