OM-05450
GHS SERIES
PAGE F - 17
SEAL APPENDIX
Position the rotating portion of the front seal onto
the shaft with the sealing face toward the drive end
of the shaft. Place a clean tissue over the sealing
face of this rotating subassembly and slide it onto
the shaft until the seal retainer seats squarely
against the spring.
Assemble the rotor adjusting sleeve (07) as de
scribed in
Pump Reassembly, Section E
and po
sition it on a flat surface with the drive end down.
Position the end of the sleeve in the cartridge seal
assembly inside the bearing retaining nut (07AD)
with the seal collar facing up. Press the seat sleeve
(07L) onto the retaining nut shoulder.
Lubricate and install the O‐ring (07B) in the groove
in the O.D. of the seat sleeve (07L). Lubricate the
front seal stationary element O‐ring and position
the stationary element in the seat sleeve with the
sealing face up. Cover the sealing face with a clean
tissue and use thumb pressure to press the sta
tionary element into the seat sleeve until fully
seated.
Install the assembled rotor adjusting sleeve and
cartridge seal assembly as a unit as described in
Pump Reassembly, Section E
.
Optional Reservoir Kit
An optional Reservoir Kit is available from the facto
ry for applications requiring a barrier liquid to lubri
cate and protect the seal from the liquid being
pumped.
Install the Reservoir Kit as shown in Figure F‐6A
and select a suitable barrier liquid according to the
criteria shown in
Installation, Section B
. Fill the
reservoir through the hole for the top fill plug
(13AB) to the middle of the sight gauge (13AC) and
maintain the liquid at this level.
Do not
pressurize the reservoir. Pressurizing a tan
dem seal will cause the seal faces to separate, re
sulting in leakage and/or damage to the seal. The
barrier liquid should be supplied at atmospheric
pressure
only
.
Figure F‐6A. Reservoir Kit
