Routine Schedule - Ransburg 75785 Service Manual

ROUTINE SCHEDULE

ROUTINE SCHEDULE
ROUTINE SCHEDULE ROUTINE SCHEDULE ROUTINE SCHEDULE
Follow these maintenance steps to extend the life
of the applicator and ensure efficient operation.
Several Times Daily Several T Several T imes Daily imes Daily imes Daily
Several T Several T imes Daily
• Turn the control unit power to OFF!
• Inspect the air cap for paint accumulation.
Clean as frequently as necessary with a soft
bristled brush and a suitable solvent.
C A U T I O N C A U T I O N
C A U T I O N C A U T I O N C A U T I O N
! ! ! ! !
NEVER remove the fluid nozzle assem-
>
bly while paint is in the applicator or paint
may enter into the air passages. Clogged
or restricted air passages will cause poor
atomization and/or electrical shorting. Air
passages that are clogged with conductive
material can lead to excessive current
output levels and consequent low operating
voltage or long-term electrical damage.
Before undertaking any atomizer mainte-
nance procedure, see "Atomizer Assembly
Cleaning Procedure".
The applicator barrel MUST be tilted front
down to remove the fluid nozzle. Failure to
do so may allow paint to enter the air pas-
sages, thereby reducing airflow and dam-
aging the applicator barrel/cascade. Appli-
cators may be flushed in lieu of tilting.
However, they must be either flushed or
tilted down during nozzle removal!
• Clean all insulating surfaces in the system.
Remove paint accumulation from the exterior
of the applicator and low voltage cable with a
solvent dampened cloth.
C A U T I O N C A U T I O N
C A U T I O N C A U T I O N C A U T I O N
! ! ! ! !
NEVER soak or submerge the electrical
>
components of the gun, i.e., barrel, hook,
transformer or cable. Damage and failure
may occur.
AH-94-04.7
REA-90 and 90L Spray Applicators - Maintenance
Daily (or at start of each shift) Daily (or at start of each shift) Daily (or at start of each shift)
Daily (or at start of each shift) Daily (or at start of each shift)
• Verify that ALL solvent safety containers are
grounded!
• Check within 20 feet of the point of operation
(of the applicator) and remove or ground ALL
loose or ungrounded objects.
• Inspect workholders for accumulated coating
materials (and remove such accumulations).
• Check that atomizer assembly is clean and
undamaged.
When straightening the electrode be
>
careful not to distort fluid nozzle orifice.
• Straighten the applicator electrode if neces-
sary.
• Clean the fluid filter, if used.
• Turn the control unit power ON. Its green
pilot should light.
• Run a current/voltage output test.
Electrical Current Output Test Electrical Current Output T Electrical Current Output T Electrical Current Output T Electrical Current Output T
1. Turn the paint supply OFF.
2. Trigger the applicator gun (high voltage ON).
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 the applicator approaches ground:
For Standard/MGS solvent units: For Standard/MGS solvent units: For Standard/MGS solvent units:
For Standard/MGS solvent units: For Standard/MGS solvent units:
a.) kV should fold back and be near zero at
contact.
b.) Current should increase to near 80 μa and
fold back to 20 μa or less at contact.
C A U T I O N C A U T I O N
C A U T I O N C A U T I O N C A U T I O N
! ! ! ! !
est est est est
2 8 2 8 2 8 2 8 2 8