Ransburg AquaTank - Manual (Page 13)

IS-99-01.4
AquaTank - Maintenance
10
MAINTENANCE
PREVENTIVE
MAINTENANCE
1. Turn OFF air supply.
2. Turn OFF voltage at power supply/ control unit.
3. Follow "Pressure Relief Procedure" described
in previous "Warnings".
4. Remove lid by removing all hold-down knobs.
5. Remove fill pail.
6. Clean internal parts of the tank and fill pail with
appropriate solvent for the material being used.
BLEED RESISTOR
(Refer to Figure 3)
Maintenance
In the AquaTank there is a bleed resistor which
allows the charge in the tank to be connected to
ground when the power supply is not delivering
voltage to the applicator in use.
Testing
1. Ensure ALL pressure and voltage is REMOVED
from the tank.
2. Remove the tank lid assembly by removing the
star grip nuts (Item 13).
3. Remove the fill pail insert (Item 18).
4. Using a megohm meter, measure the resistance
between the ground stud on the outside of the
tank and the fill pail contact interface. This
valve should be 1 gigohm + /-10%. If the
resistance value is out of this range, the bleed
resistor needs to be replaced.
Replacements
For units manufactured prior to 8/99:
These units will require factory replacement of
the resistor. Ship the unit back to the factory for
replacement. After this replacement, the bleed
resistor will then be field replaceable.
For units manufactured after 8/99 or factory
serviced:
1. Loosen ground stud and remove nut and
washers.
2. Turn tank upside down to expose the bottom
of the tank.
3. Remove the 1/4-20 nuts which secure the
resistor block to the ground strap bolt (Item
23). Remove the wire from the stud.
4. Remove the 5/16-18 nuts from the outside
ground connection of the tank.
5. Pull the resistor block back to remove the bolt
from the wall of the tank. Remove the 1/4-20
bolts which secure the resistor block wire to
the tank.
> The function of the tank depends upon the
cleanliness of the INTERNAL FILL PAIL /
contact interface. This contact area MUST
be kept clean.
W A R N I N G
!
> Be careful NOT TO damage the threads
of the tank studs.
C A U T I O N
!