Ransburg – Ransburg Aerobell (Std.) Rotary Atomizer A12381 User Manual

Page 43

6. Clean the exterior of the Aerobell as follows

(read following "Warning" first):

To reduce the risk of fire or explosion,

OSHA and NFPA-33 require that solvents

used for exterior cleaning be non-flamma-

ble (flash points higher than 100

F/37.8

C).

Also, since electrostatic equipment is

involved, these solvents should also be

non-polar. Examples of non-flammable,

non-polar solvents for wipe down are: amyl

acetate, methyl amylacetate, high flash

naptha, and mineral spirits.

a. If using a rag to hand wipe the Aerobell,

turbine air should be off, but leave shaping

air on. Be careful not to drip solvent into the

opening behind the bell (see step #1).

b. Do not use conductive solvents such as

MEK to clean the Aerobell.

7. Do not reuse an atomizer bell that shows signs

of damage such as nicks, heavy scratches, dents,

or excessive wear.

8. Periodic cleaning of the slots in the shaping air

ring will prevent paint build-up which does affect

pattern control or cause defects in parts being

coated. Follow "Cleaning Shaping Air Slots and

Annulus" in the "Maintenance" section and clean

the slots of the shaping air ring using a soft bristle

brush.

To prevent paint build-up in slots of shaping air

ring while installed, clean shroud assembly with

shaping air ON. Clean with a damp rag or soft

bristle brush. Do not soak or saturate area to

force fluid or paint into the slots (70-100 SLPM

of shaping air is recommended).

3. Flushing should be done with the atomizer

bell cup installed. The bell cup will normally be

fully cleaned with flushing. However, if there is

any remaining paint build up on any areas of the

bell after flushing, the bell should be removed for

hand cleaning.

4. Clean the bell cup by soaking in an appropriate

solvent as long as necessary to loosen paint. Use

a soft bristle brush dipped in solvent to remove

paint. Make sure all signs of paint are removed

(See the following "Caution"). Rinse and dry bell.

Using a non-metallic item (toothpick), clean the

center holes of the splash plate. Using plenty of

cleaning fluid, flush these holes towards rear of

bell cup. Make sure these holes are clean.

5. Before reinstalling the bell onto the shaft, check

the tapered mating surfaces of the turbine shaft

and bell for any paint residue. Clean any residue.

See following "Caution".

W A R N I N G

Using an atomizer bell with paint build-

up will cause a bell imbalance. An im-

bal-anced bell may cause bearing damage

and turbine failure. Also, any paint residue

caught between the tapered surfaces can

prevent the bell from seating properly and

result in an imbalanced condition.

C A U T I O N

Aerobell - Maintenance

LN-9264-08.2

Ransburg