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

Page 36

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31

Evolver Solventborne Robotic Atomizers - Maintenance

SERVICE

Because we want to provide our users with the most

up-to-date technology possible, we are constantly

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 manufac-

turing changes, contact your Ransburg representative

to resolve the difference.

>

An electrical discharge or spark may create an

electrical and/or fire hazard during maintenance.

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 hazard-

ous. 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 Clean-

ing" in the "Maintenance" section for instructions on

how to properly clean the spray gun. Depressurize

all fluid and air pressures before 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 servic-

ing gun.

W A R N I N G

!

AA-03-02.11

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