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Model RB
Air Eliminator Head
Installation, Operation & Service
May 1982
Bulletin 1 6 3 4
Disassembly
1.
Remove
the
air
eliminator
head
assembly
by
disconnecting the vent line and removing the 8
mounting bolts.
2.
Remove the 3 screws and nuts holding the float guard
to the 3 brackets. Remove the float guard.
3.
Remove the retaining ring from the float pin. then
remove the float from the rocker spring.
4.
In order to remove the valve assembly from the cover,
the rocker spring will have to be positioned to provide
access to the 3 1/4" 20 by 1/2" screws with lock
washers. Caution: The valve assembly is spring
loaded and has a tendency to 'snap' open by itself, as
going from the position shown in Figure 1 to the
position shown in Figure 2. Therefore, when the third
screw is removed, be sure to hold the valve assembly
so it will remain in the position shown in Figure 1.
Remove the valve assembly from the head.
5.
Tip the rocker spring as shown in Figure 3. The bias
band may now be removed by working the band back
and forth while exerting a pulling pressure to displace
holding tab in seal block. When replacing the bias
strip, the same colored strip must be used.
Inspection
1.
Examine the molded seals on the seal block. The
raised portion should be above the metal surface of the
seal block and uniform in height. No foreign material
should be imbedded in the molded seal. Such
condition could prevent the valve bands from making a
tight seal, and allowing the valve to leak.
2.
Examine the valve bands. They should be free of any
kinks or dents that would prevent them from making
complete contact with the entire raised portion of the
molded seal.
3.
Any parts that prevent the raised portion of the molded
seal and valve bands from making continuous contact
around both valve openings will cause the valve to
leak, and therefore. should be replaced.
Assembly
1
When the bands are fastened to the seal block. They
should be inline with the seal block's edge (reference
Figure. This allows the bands to "rock" square with the
seal block by lying completely flat against it. If the
bands are not in line with the edge of the seal block,
they will tend to rock at an angle, will
1602 Wagner Avenue. P.O. Box 10428. Erie. PA 16514. Telephone: 814 899-0661. Telex: 91-4479
A9-49
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