Needle / Electrode - Ransburg 75785 Service Manual

REA-90 and 90L Spray Applicators - Maintenance
Cleaning and Inspection Cleaning and Inspection Cleaning and Inspection
Cleaning and Inspection Cleaning and Inspection
1. Use a suitable solvent to clean the fluid nozzle.
(Refer to "Suitable Solvents for Cleaning REA-90
Applicators" in the "Maintenance" section.)
2. Examine the fluid nozzle for damage to the air
passages and the fluid nozzle tip. Also, examine
the needle seat for damage or wear. If any
damaged or any worn areas are found, the fluid
nozzle must be replaced.
N O T E N O T E
N O T E N O T E N O T E
If the fluid nozzle is replaced, there is
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a good chance that the needle/electrode
assembly will need to be replaced also. A
worn needle/electrode assembly may not
always seat well in a new fluid nozzle.
Reinstall Reinstall
Reinstall Reinstall Reinstall
1. Check the needle/electrode tightness on the
needle shaft. If it is loose, tighten it. (Refer to
"Needle/Electrode" in the "Maintenance" section.)
2. With the applictor trigger actuated, place the
fluid nozzle over the needle/electrode and screw
it into the barrel by hand.
3. Tighten it using the special multi-purpose
wrench.
N O T E N O T E N O T E N O T E N O T E
DO NOT overtighten the fluid nozzle
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into the barrel. Doing so could damage or
break the fluid nozzle or damage the
thread of the barrel.
4. Install the air cap and retaining ring onto the
applicator. (Refer to "Air Cap - Reinstall" in the
"Maintenance" section.)
3 5 3 5 3 5 3 5 3 5

NEEDLE / ELECTRODE

NEEDLE / ELECTRODE
NEEDLE / ELECTRODE NEEDLE / ELECTRODE NEEDLE / ELECTRODE
Removal Removal Removal
Removal Removal
1. Remove the air cap and fluid nozzle from the
applicator assembly. (Refer to "Air Cap - Removal"
and "Fluid Nozzle - Removal" in the "Maintenance"
section.)
2. Secure the needle shaft at the rear of the barrel
and unscrew the needle/electrode from the needle
shaft.
Cleaning and Inspection Cleaning and Inspection Cleaning and Inspection
Cleaning and Inspection Cleaning and Inspection
1. Use a suitable solvent to clean the needle/
electrode. (Refer to "Suitable Solvents for Cleaning
REA-90 Applicators in the "Maintenance" section".)
2. Examine the needle/electrode for damage or
wear. Pay special attention to the area where the
wire electrode extends from the main body. This
is a sealing surface that seats inside the fluid
nozzle. If there are signs of wear in this area, both
the needle/electrode and fluid nozzle must be
replaced.
3. An electrical check of the needle/electrode
must be done prior to reinstalling it into the
applicator assembly. (Refer to "Needle/Electrode
Resistance Testing" in the "Maintenance" section.)
Reinstall Reinstall Reinstall
Reinstall Reinstall
1. Secure the needle shaft at the rear of the barrel
and screw the needle/electrode into place by
hand.
2. Reinstall the fluid nozzle and air cap onto the
barrel. (Refer to "Air Cap - Reinstall" and "Fluid
Nozzle - Reinstall" in the "Maintenance" section.)
AH-94-04.7