Trillium WSP-6, Installation, Operation & Maintenance Instructions Manual, Page: 30 / 73

WSP™
DATA SHEET WSP™ SELF-PRIMER PUMPS WSP-D300_6
Rev. 3 01/09/20
© 2019 The Factory
30
1. Mechanical Seal Installation
i. Install the sealplate gasket if the sealplate was previously removed.
Carefully place the sealplate directly over the shaft, and attach it to
the bearing housing with its hardware. Next, lubricate the seal plate
O-ring with light grease, and install it on the seal plate.
ii. Stretch the O-ring over the shaft sleeve that is provided with the
mechanical seal to prevent damage to the O-ring. Slip the shaft
sleeve over the threads, sliding the O-ring off the shaft sleeve onto the
shaft. After removing the shaft sleeve, continue sliding the O-ring
down the shaft until it seats itself against the shaft shoulder then use
light oil to lubricate the shaft sleeve O-ring.
iii. To install a new seal assembly, unpack the new seal, and using the
stationary seal seat holder, lubricate the external stationary seat
holder O-ring and the bore of the sealplate where the seal will be
installed with light oil.
iv. Lubricate the shaft sleeve with lightweight oil.
v. Lubricate the inside of the bellows in the rotating head assembly with
lightweight oil.
vi. Put the shaft sleeve into the seal face side of the rotating head. This
is
located on the opposite side of the I.D. chamfer for the shaft sleeve O-
ring.
vii. Hand-press the shaft sleeve firmly into the rotating head until the
sleeve is
even with the rotating head seal face. Be extremely careful to avoid
damaging the seal face (Figure 8).
viii. Wipe any grease or debris from the sealing surface of both the
stationary and
the rotating seal faces with a clean, lint-free cloth.
ix. Use 1-2 drops of light oil on one seal face, and install the shaft sleve
onto the shaft.
x. Be sure that both seal faces are fully seated and the drive notches in
each face are fully engaged.
xi. Press the shaft sleeve firmly through the rotating part of the
mechanical seal until the sleeve will not move forward (Figure 8).
Should it become necessary to reuse an old seal in an emergency, separate both the
stationary and rotating seal faces from the bellows retainer and the stationary seat. Be
careful not to damage the seal faces.