Slurry Pump
WH19AM1G410EN_04C.DOC JAN 04-W08
Care and maintenance
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8. Maintenance of the Centrifugal Seal (Assembly)
NOTE:ALL PACKING RINGS AND ANY SUSPECT COMPONENTS SHOULD BE RENEWED.
a) If expeller ring seal (G17.1) is to be renewed, remove the old seal and
thoroughly degrease the groove in expeller ring (G7) using a suitable cleaning
agent. Apply grease to the new seal and fit into the groove.
b) Assemble the gland with the expeller ring resting on a flat surface, rear face
uppermost.
c) Position shaft sleeve (G2) vertically in the bore of expeller ring (G7).
d) Smear grease on packing rings (G5) and, in the order listed, fit the following
parts over shaft sleeve (G2) into the bore of expeller ring (G7):
• One turn of packing (G5)
• Lantern ring (G1)
• Two rings of packing (G5)
• Gland follower (G10).
e) Fit gland follower screws (G18) and nip finger tight.
f) Using the wet-end sealing system drawing in section 10.4, identify and fit the
appropriate gaskets and spacers onto the shaft in the order shown.
g) Offer up the expeller ring and gland assembly so that shaft sleeve (G2) abuts a
gasket. Ensure that the expeller ring spigot locates in bearing frame (P14).
h) Fit the last shaft sleeve gasket (G58) followed by expeller (G15) onto shaft
(B11).
9. Maintenance of the Centrifugal Seal (Re-fitting)
Re-fit the bearing frame and rotating assembly or the case as appropriate for the method
of removal.
CAUTION
BEFORE OPERATION, CARRY OUT THE PRE-START CHECKS.
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