Installation, Operation, Preventive Maintenance & Cleaning - DeVilbiss Compact MINI Technical Bulletin

Page 8 SB-2-858
INSTAllATION
For maximum transfer efficiency,
do not use more pressure than is
necessary to atomize the material
being applied . NOTE: when using the
hS1, hVlP setup do not exceed 29.0
psi (2.0 bar) inlet pressure.
1 . Connect the gun to a clean,
moisture and oil free air supply
using a conductive hose .
NOTE
Install an air gauge at the
gun handle . When gun is
triggered on, adjust regulated
pressure to 29 .0 psi (2 .0 bar) .
Do not use more pressure
than is necessary to atomize
the material being applied .
Excess pressure will create
additional overspray
reduce transfer efficiency .
2 . Attach the gravity feed cup to the
material inlet .
NOTE
Before using the gun, flush
it with solvent to ensure that
the fluid passages are clean .
OPERATION
1 . Mix coating material
manufacturer's instructions .
2 . If required, fit the filter in the cup
or use the funnel with a paper filter .
3 . Fill the cup to no more than 1/2
inch from the top of the cup . DO
NOT OVERFILL .
4 . Attach Cup Lid .
5 . Turn fluid adjusting knob (18)
clockwise to prevent fluid needle
movement .
6 . Turn spreader valve adjusting knob
(23) counter clockwise to fully
open .
7 . Adjust inlet air pressure to 29 .0 psi
(2 .0 bar) .
8 . Turn fluid adjusting knob counter
clockwise until first thread shows .
9 . Test spray . If the finish is too dry,
reduce airflow by reducing air inlet
pressure .
10 . If finish is too wet, reduce fluid
flow by turning fluid adjusting
knob (18) clockwise . If atomization
is too coarse, increase inlet air
pressure . If too fine, reduce inlet
pressure .
11 . The pattern size can be reduced
by turning spreader valve knob
(23) clockwise .
12 . Hold gun perpendicular to surface
being sprayed . Arcing or tilting
may result in uneven coating .
13 . The recommended spray distance
is 3-6 in (75-150 mm) .
14 . Spray edges first . Overlap each
stroke a minimum of 75% . Move
gun at a constant speed .
15 . Always turn off air supply and
relieve pressure when gun is not
in use .
and
PREVENTIVE MAINTENANCE &
ClEANING
To clean air cap and fluid nozzle,
brush exterior with a stiff bristle
brush . If necessary to clean cap holes,
use a broom straw or toothpick if
possible . If a wire or hard instrument
is used, extreme care must be used
to prevent scratching or burring of
the holes which will cause a distorted
spray pattern .
to
To clean fluid passages, remove
excess material from cup, then flush
with gun wash solution . Wipe the
gun exterior with a dampened cloth .
Never completely immerse in any
solvent or cleaning solutions as this
is detrimental to the lubricants and
life of the spray gun .
When replacing the fluid
nozzle or fluid needle, replace
both at the same time . Using
worn parts can cause fluid
leakage . See page 13, Chart
2 . Also, replace the needle
packing at this time . Torque
the fluid nozzle to 70 in-lbs
(8 Nm) . Do not over tighten .
NOTE
CAuTION
To prevent damage to fluid
nozzle (8) or fluid needle
(15), be sure to either 1) pull
the trigger and hold while
tightening or loosening the
fluid nozzle, or 2) remove
fluid adjusting knob (18)
to relieve spring pressure
against needle collar.
CAuTION
IMPORTANT — the Gravity
cup is made from special
anti-static materials,
it still important to avoid
generating static charges.
The Cup must not be cleaned
or rubbed with a dry cloth
or paper. It is possible to
generate a static charge by
rubbing which, if discharged
to an grounded object could
create an incendive spark
and cause solvent vapors to
ignite. Only use a dampened
cloth or antistatic wipes if
manual cleaning is required
within a hazardous area.
but