Ransburg RPA-2 Powder Applicator A12950-XXX - Manual (Page 20)

RPA-2 POWDER APPLICATOR - Maintenance
17 LN-9271-12.2
General Problem Possible Cause Solution
Applicator sprays
powder, high volt-
age available, but
the powder does
not adhere on the
work piece. 1. High voltage too low
2. Work piece not properly
grounded
1. Increase high voltage on the control unit.
2. Check the grounding/measure
3. Look for loose connections
•
Plastic on conductive component
•
Loose fitting hinges
•
Non-conductive coating present on sub-
strate before spraying.
MAINTENANCE
TROUBLESHOOTING GUIDE
!
W A R N I N G
Be careful with nozzle electrode during
cleaning and maintenance— danger of inju-
ry! Never bend or pull electrode
Before cleaning applicator. switch off the
control unit. The compressed air used for
cleaning must be free of oil, water and other
contaminates.
! W A R N I N G
!
W A R N I N G
Make sure the large diameter threaded
ring (applicator body to shaping ring) is al-
ways tightened well. If it is fitted loosely,
there is a danger that a discharge may occur
with the high voltage, which leads inevitably
to damaging the plastic components.
INSPECTING AND CLEAN-
ING THE APPLICATOR
1. Blow off the atomizer externally with com-
pressed air.
2. If a solvent wipe is required, use VM&P
Naphtha for a final wipe to remove any con-
ductive residue.
3. Clean the atomizer only with a damp rag.
Never immerse the components into sol-
vents.
4. Remove any impact fusion on deflector
without scratching or scoring the soft plastic
surface of the deflector. Impact fusion can
be removed with a solvent soaked towel.
5. If impact fusion is not removed, it will short-
en the life of the parts and cause defects
6. Blow out all powder hoses with high
volume/high velocity air purge during clean-
ing.