Ransburg EFM & EFMD Solvent Applicator 76480, 76482, 76485, 76488 - Manual (Page 30)

AA-99-01.1 2 5 2 5 2 5 2 5 2 5
EFM(D) Solventborne Robotic Atomizers - Maintenance
FLUID REGULA FLUID REGULA FLUID REGULA FLUID REGULA FLUID REGULAT T T T TOR OR OR OR OR
OR DUMP OR DUMP OR DUMP OR DUMP OR DUMP V V V V VAL AL AL AL ALVE VE VE VE VE
(See Figure 6a) (See Figure 6a) (See Figure 6a) (See Figure 6a) (See Figure 6a)
1. Remove all pressures, both air and fluid from
the line leading to the spray applicator.
2. Purge all fluid from the applicator prior to
performing any service.
3. Remove dump cap [15] or regulator cap [9].
Use EMF-445 Cap Tool for dump cap removal,
EMF-438 Cap Tool for regulator cap removal,
provided in the tool kit.
7. Inspect poppet seat assembly [2] for wear. If
wear or damage is evident, replace. Replace both
poppet and seat at the same time because they
are a matched set. Inspect o-ring for damage,
replace as necessary, Part Number SSG-8172.
8. Reassemble the fluid regulator by inserting the
spring, poppet and seat [1 and 2] back into the
valve manifold housing. Be sure to lube o-ring
before trying to insert back into manifold. Secure
the poppet/seat assembly by screwing the seat
retainer [4] into the valve manifold housing until a
torque of 8-10 lbs•in is obtained.
> Once regulator cap [9] or dump cap
[15] is removed, diaphragm support [8 or
14] will be loose and may fall out.
N O T E N O T E N O T E N O T E N O T E
4. Remove diaphragm support [8 or 14] and
carefully remove elastomeric diaphragm [6 or
13]. Use a small screwdriver blade and pry loose
one edge and lift it out.
5. Inspect the diaphragm for wear or damage.
Pay particular attention to the air side, since this is
a Buna-N elastomer and can be damaged by
solvent contact. Replace if necessary.
6. Use the poppet seat tool provided, 76382-00,
to unscrew the poppet seat retainer. The tungsten
carbide poppet seat may come out now because
of the spring force trying to push it out. If it does not
come out on its own, insert seat extraction tool,
76385-00, into hole in seat retainer. Tighten tool in
hole and pull seat retainer out.
> Regulator cap and dump cap replace-
ment procedures are identical. They dif-
fer only in size.
N O T E N O T E N O T E N O T E N O T E
> When replacing the poppet seat or the
regulator/dump cap, be cautious so that
the plastic threads are not stripped by
cross threading.
N O T E N O T E N O T E N O T E N O T E
9. When placing the diaphragm [6 or 13], remove
the screw [16] that holds both halves together.
Inspect o-ring for damage. To reassemble, make
sure that the Teflon side is toward the lower
support [5 or 10]. Reinstall screw and tighten. Be
careful not to over tighten. If the diaphragm is
inserted wrong, damage will occur. Push the
diaphragm assembly down in valve body.
10. Place diaphragm support [8 or 14] back into
the housing, with the "hump" side up.
11. Tighten the regulator cap [9] to 125-135 lbs•in
using the EMF-438 Cap Tool. Tighten the regulator
cap [9] by hand at first; then use the cap tool.
Tighten the dump cap [15] to 50-65 lbs•in using the
EMF-445 Cap Tool.