Ransburg, Service, Spray head assembly – Ransburg Evolver Solvent Robot Applicator 79190-XXXXXXXX User Manual
Page 34

SERVICE
Because we want to provide our users with the
most up-to-date technology possible, we are con-
stantly seeking to improve products. If a change
in product configuration occurs after it is on the
market, we will implement that technology in future
production and, if practical, make it available to
current users. The following service information is
based on standard specifications and procedures
for this product. If you find some minor deviations
between this information and your equipment
because of design or manufacturing changes,
contact your Ransburg representative to resolve
the difference.
>
An electrical discharge or spark may create
an electrical and/or fire hazard during mainte-
nance. Do not service the spray gun with the
power supply on. Verify that the power supply
on/off switch has been turned off.
>
Unexpected robot movement can be haz-
ardous. Do not adjust or repair the spray gun
when the robot is operating or waiting to start.
The robot must be locked out and tagged out
per OSHA prior to removing the gun from the
robot manifold assembly.
W A R N I N G
!
Before performing any work on the spray gun,
always flush the fluid passages and blow dry with
pushout air, and wipe the spray gun clean. Refer
to "Gun Cleaning" in the "Maintenance" section
for instructions on how to properly clean the spray
gun. Depressurize all fluid and air pressures be-
fore removing the gun from its manifold. Always
work in a clear, clean space to minimize parts
loss and damage.
SPRAY HEAD ASSEMBLY
>
As the spray head is removed from the
valve manifold assembly, a certain amount of
residual fluid may be present. Care must be
taken not to allow this fluid to drain into the
high voltage terminal rings or air passages.
C A U T I O N
!
>
Disassemble spray head only enough
to remove and replace defective parts.
For instance, if only replacing the front
electrode it is not necessary to remove
the fluid nozzle.
NOTE
>
At assembly, apply a small amount
of dielectric grease to grooves in spray
head and valve manifold to reduce high
voltage breakdown. Excessive grease
will not allow spray head [2] to seat fully
against mounting block assembly [3] (see
Figure 10).
>
To prevent damage, always lubricate
the o-rings located on the underside of
the spray head.
NOTE
>
Eye protection should be worn while ser-
vicing gun.
W A R N I N G
!
Evolver Solventborne Robotic Atomizers - Maintenance
30
Ransburg
AA-03-02.12