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 TM 55-1905-220-14-4
3-56. SHAFT SEALS - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
INSTALLATION (Cont)
(a) Draw up cord until
sealing element (26)
is under a slight
compression.
(b) Cord should be
Sealing element
tight enough so
need not be
that sealing
tight in shaft.
element (26)
remains in contact
for drying period.
d. Pre-
1. Lightly wipe one end
Sew preformed
formed
of split preformed
packing to-
packing
packing (12), and
gether with
cement preformed
care, using
packing around the
strong thin
shaft.
thread.
2. Permit the sealing
Accelerate
element (26) and pre-
drying time
formed packing (12) to
to 3 hours
set up 24 to 36 hours
by raising
at 75 (24 ).
F
C
temperature
Longer at lower temp-
to 100
F
(38 ). Do
eratures.
C
not exceed
120 (49 ).
F
C
e. Sealing
1. Wipe lightly on one of
element
the split surfaces of
sealing element (27)
with Methyl Ethyl Ke-
tone solvent.
2. Wrap sealing element
Be careful not
(27) around shaft with
to let split
flanged end forward.
surfaces touch.
3. With the bore of the
This-step is
sealing element (27)
important,
pressed against the
and must be
shaft, slide the
done with care.
split surfaces
together.
3-1002
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