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

Page 34

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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

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Ransburg

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