Ransburg RPA-2 Powder Applicator A12950-XXX - Manual (Page 19)

RPA-2 POWDER APPLICATOR - Maintenance
LN-9271-12.2 16
General Problem Possible Cause Solution
High voltage dis-
play shows no
value, although
the control unit is
switched on and
high voltage is
being called for. In the applicator:
1. Applicator cable defect
2. High voltage cascade defect
3. Wrong MicroPak switch set-
tings
1. Replace applicator low voltage cable,
send in for repair. Check connections
for proper contact.
2. Replace high voltage cascade, send in
for repair.
3. Check MicroPak settings (Refer to cur-
rent MicroPak service manual.
During coating,
air flows out of
the applicator
body. 1. O-Ring defective or missing
on shaping ring
2. Loose fitting hose
1. Replace or insert O-ring
2. Check fitting— push in hose
The applicator
does not spray
powder in spite
calling for powder
flow. 1. Powder hose, applicator,
injector, non-return valve,
or throttle on the injector
clogged
2. Insert sleeve on the injector
is worn
3. No conveying air:
a. Solenoid valve defective
4. Dense phase pump not
working
1. Carry out corresponding cleaning.
2. Replace( see the corresponding Oper-
ating Manual of the injector).
3. Replace
4. See “Dense Phase Pump” manual.
Powder applicator
sprays powder,
but the powder
does not adhere
on the work
piece. 1. Applicator plug, applicator
cable, or connection defec-
tive
2. High voltage cascade is de-
fective
3. Plugged electrode
1. Replace defective part or send in for
repair.
2. Send in the applicator for repair or re-
place high voltage cascade.
3. Pneumatically blow backwards
through hollow tube.
MAINTENANCE
TROUBLESHOOTING GUIDE