Ransburg RMA Indirect A12869 - Manual (Page 81)

RMA-303 Indirect Charge - Maintenance
LN-9268-11.4 76
Figure 55: Disassembly /Assembly
Electrode Assembly
Figure 56: Replacing Dielectric Grease
Figure 57: Inspection of Electrode Tip
WHEN RE-ASSEMBLING, APPLY A SMALL
AMOUNT OF DIELECTRIC GREASE TO CONTACT
WHEN RE-ASSMBLING, ADD A SMALL
AMOUNT OF DIELECTRIC GREASE TO
ENDS OF RESISTOR
A11342-00
ELECTRODE BODY ASSEMBLY
CHECK REISTANCE BETWEEN
ENDS OF RESISTOR
CONTACT ASSEMBLY
RESISTOR
PLUNGER CONCTACT ASSMBLY
ELECTRODE ASSEMBLY RESISTANCE READING
Part # Resistance Read-
ing (Megohms) Used At
(Locations)
A11343-02 209-231 Megohms Sea Level
A11343-03 133-147 Megohms Above 5000 Ft.
If reading falls out of this range, disassemble
electrode assembly and check reading of re-
sistor only. If reading is in the acceptable
range, discard the electrode body (A11342-00)
and replace with a new one. Rebuild elec-
trode assembly as follows: apply a small
amount of dielectric grease to each end of the
resistor, slide resistor into the electrode body
(A11342-00). Install the contact assembly af-
ter the resistor. Finally, apply a small amount
of dielectric grease to contact area of plunger
contact assembly. Thread plunger contact
assembly into electrode body by hand until it
stops. Hand tight is good enough. Over-
tightening will damage the electrode body (see
Figure 55).
Before Installing a New or Used Electrode
into the High Voltage Ring
Replace the dielectric grease in the area as
shown in Figure 56. A thin film is all that is
required.
Electrode Tip Inspection
Inspect the electrode tips weekly or sooner. If
a collision has occurred, immediate inspection
is required. The tip of the electrode should be
sharp and pointed. After time, the tip will
wear. If the tip is rounded or worn jagged it
must be replaced. Depending on use, elec-
trode tips will last 3-6 months. The electro-
static fields generated by these electrodes are
very important to maintain paint transfer effi-
ciency, pattern uniformity, and atomizer clean-
liness.