Archive, Evolver 202 robotic atomizers - maintenance, Polar and non-polar sol – Ransburg Evolver 202 Solvent A11918-XXX User Manual

Page 34

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Evolver 202 Robotic Atomizers - Maintenance

8. Remove fluid nozzle [32] by unscrewing
counter-clockwise. Inspect o-ring [30] and all
passages for build up or damage. Clean or re-
place as necessary. Lubricate and reinsert o-
ring into applicator barrel and reinstall fluid nozzle.
Torque fluid nozzle to 25 lbs•in (2.82 Nm).

There should be a small gap between

the fluid nozzle and the applicator barrel
after tightening.

NOTE

9. After cleaning, insert the electrode assembly
[31] back into the spray head assembly. Apply
Loctite #222, low strength (purple) thread-locker,
to the threads of the electrode assembly before
reassembly.

10. Screw fluid tip [34] back into place. Hand
tighten first, then with a small wrench, tighten an
additional 30 degrees.

11. Replace air cap locator [33], air cap [35], and
air cap retainer [36].

12. Apply a thin film of petroleum jelly to valve and
needle springs [2] and [3]. Install the springs back
into the end cap and the spray head assembly.

13. Screw end cap [1] back on.

Current Output T

Current Output Test

est

1. Clean and blow out all fluid passages with non-
conductive solvent.

2. Remove from robot and perform bench test
using a spare tubing bundle.

3. Turn the control unit power ON

ON.

4. Activate high voltage and slowly approach the
applicator electrode with ground hook or wire.

5. Monitor the current output on MicroPak. Cur-
rent should rise as ground approaches. At
approximately 85 microamperes, the MicroPak
will shut off. The OVERCURRENT

OVERCURRENT

OVERCURRENT indicator

should come on.

The spray head can be removed from assembly
as shown in Figure 9a for cleaning and service.

The fluid tip [34] should always be

installed and tightened before installing
the needle and valve springs.

NOTE

After tightening the fluid tip, always check

to see if the proper gap (1/16") between the
needle nuts and air valve stem occur, before
installng the needle and valve springs back
into the head.

C A U T I O N

!!!!!

Amyl Acetate

Methyl Amyl Acetate

Toluene

Xylene

High Flash Naptha

Mineral Spirits

Non-Conductive (Non-Polar)

POLAR AND NON-POLAR SOL

POLAR AND NON-POLAR SOLVENTS

VENTS

Moderately Conductive

Extremely Conductive (Polar)

Methyl Isobutyl Ketone

Ethyl Acetate

Methyl Ethyl Ketone

Butyl Carbitol

Methanol

Carbitol

Diacetone

Butyl Alcohol

Acetone

Butyl Cellosolve

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