Ransburg REA Automatic Applicators 77359, 76110, 77140 - Manual (Page 25)

Weekly
• Check the entire system for damage, leaks
and paint accumulation.
• Clean the atomizer assembly.
• Inspect workholders for accumulated coating
materials, removing such accumulations.
• Check that atomizer assembly is clean and
undamaged.
• Straighten the applicator electrode if
necessary.
Electrical Current Output Test
1. Turn the paint supply OFF.
2. Turn high voltage on at applicator.
3. Slowly approach the applicator electrode to any
grounded object and make contact.
4. Monitor the current output reading on the
voltage supply meter. As applicator approaches,
ground current should increase near 100 mA
overload current should “trip,” shutting “off” high
voltage. Overload indication should come on.
5. Release the trigger and turn the control unit
power OFF.
If the control unit does not trip, DO NOT use the
applicator until the problem has been corrected.
(See the “Troubleshooting Guide” in the “Mainte-
nance” section of this manual).
Shut-Down
(and at the end of each shift)
1. Turn the control unit power OFF.
2. Turn the paint supply OFF.
3. Turn the atomizing air and fan air OFF.
4. Wipe the applicator, cable and hoses with a rag
and a suitable non-polar (non-conductive) solvent.
5. Flush the lines and allow the solvent to remain
in the lines unpressured. (See “Flushing Proce-
dures” in the “Maintenance” section of this manual).
> If the shutdown is to be short, the lines
may not require flushing, depending on
the coating material being used. If the
solids in the material settle slowly, the
lines will not need to be flushed as soon
after shut-down as with fast settling
solids. The paint being used and the
length of time that the lines will be shut-
down will determine the need for flush-
ing. Metallic paint and primer will require
flushing sooner than some other kinds
of coating materials.
NOTE
> When straightening the electrode, be
careful not to distort the fluid nozzle orifice.
C A U T I O N
!
• Clean the fluid filter, if used.
• Turn the control unit power ON. The
applicatorred transformer light should light
when triggered.
• Run a current/voltage output test.
> If the coating material is fast settling and
if the lines are not flushed soon enough, the
applicator’s fluid passages as well as the lines
may become clogged and cause excessive
down time and/or service and repair.
C A U T I O N
!
Ransburg
REA Automatic Applicators - Maintenance
21 AA-99-02.5