Ransburg AquaBlock2 A12148-XX - Manual (Page 28)

AquaBlock 2 - Maintenance
23
† During removal of the reservoirs, one
of the pistons may unscrew itself from the
connecting rod. If this occurs, install the
connecting rod and pull the piston from
the reservoir. If piston cannot be pulled
out, place the reservoir on a flat surface.
Apply air pressure as required to the fluid
port until piston becomes free. DO NOT
USE EXCESSIVE PRESSURE!
NOTE
4. The piston [4] assembly consists of the piston,
piston seal [9], seal retaining plate [7], and o-ring
[8]. Remove the seal retaining plates by pulling
each assembly apart with a twisting motion.
5. Remove the piston seals and discard them.
6. Remove the o-rings located in the seal retaining
plate and inspect them for swelling or damage. If
the o-rings have swollen, they should be replaced.
RE-ASSEMBLY
(See Figures 6, 7b, and 7c)
1. Thoroughly clean all traces of coating material,
dirt, etc., from all components.
4. Install o-rings [8] into grooves on each seal
retaining plates [7].
5. Install connecting rod [5] through the center
section [1] and thread the piston assemblies [4,
7, 8, and 9] onto each end. Tighten the piston
assemblies securely by hand, then tighten each
jam nut [6].
6. Slide one (1) of the piston assemblies, about
half way, into one of the reservoirs [10] by pushing
squarely on the opposite piston assembly. Care-
fully thread the reservoir onto the center section
and tighten securely using the RPM-419 wrench.
Push the exposed piston unit until it bottoms
against the center section. Carefully thread the
remaining reservoir onto the center section and
tighten securely with the wrench.
7. Install the cylinder/reservoir assembly using
the two (2) nylon mounting screws [29] provided
with the unit.
8. Connect the pneumatic end-of-stroke signal
lines to the fittings in the cylinder/reservoir center
section.
9. Connect the fluid tubes at each end of the
cylinder/reservoir. Tighten the tube fitting nuts
securely and slide the polyurethane tubing over
each fitting.
10. Turn on the main air supply.
11. The unit is now ready to resume operation.
12. Follow "Start-Up Procedures" and check for
leaks.
2. Inspect the ceramic sleeves inside each res-
ervoir [10] for excessive wear. If the sleeves
contain deep scoring, then the reservoir should
be replaced.
3. Install piston seals [9], o-ring end first, onto
each piston [4].
† If fluid flow cannot be established
through the system, then the cylinder/res-
ervoir assembly may be "out of phase" with
the shuttle block assembly. Interchange
the pneumatic end-of-stroke signal lines
at the cylinder/reservoir center section to
obtain flow.
NOTE
† Cleanliness of the cylinder/reservoir
assembly is essential to its operation as a
voltage blocking device. After the compo-
nents have been thoroughly cleaned, they
must be wiped down with a non-polar solvent
(such as high flash Naphtha) to reduce any
amount of conductive residue.
C A U T I O N
!
LN-9902-00.3
Ransburg