JABSCO Hy-Line, Инструкция по установке, эксплуатации, техническому обслуживанию и запасным частям

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07/03
Hy~Line
and
Ultima
Lobe Pumps
faces. As a precaution it is also advisable to
have a spare set of seal faces available as
these parts are very brittle and are easily
broken.
To dismantle mechanical seals:
a) Carefully remove the static seal seats
(80) from their bores in the rotor case (51),
by inserting the special seal removal tool
(182) carefully between the outside diameter
of each seal seat and the bore in the rotor
case. Push back the joint ring with the end of
the tool and rotate the tool by 90 degrees,
until the hooked end locks in position behind
the seal seat. Working the tool gently around
the circumference of the seal, carefully pull
the seal face out. (See figure 12) Take great
care not to scratch or damage the smooth
face of the seal. Keep each seal with its
respective shaft to ensure correct mating of
the seal faces on re-assembly.
b) The joint ring (83) may come out with the
seal face. If not, then remove it from the
rotorcase bore and keep it together with the
seal face. You may wish to label the
components.
Note: static seal seats can also be accessed
from the back of the rotorcase after removing
the rotorcase and seal housings (see section
6.06).
c) Only remove the rotary seal seat (80) from
the back of the rotor (56 & 57) if you intend
to fit a new seal or cup rubber (83). Gently
prise out the seat from the rotor using two
blunt screwdrivers. (See figure 13).Seat
materials are brittle, eye protection is
recommended.
For LH32 & LH34 Pumps
Note: Double mechanical shaft seals are not
available on the LH32 or LH34 size pumps
a) Pull the static faces (80) from their bores
in the rotor case (51), removing the joint ring
(83) with each seal face. Take care not to
scratch or damage the smooth face of the
seal. If you intend to re-use these faces keep
each seal with it’s respective shaft to ensure
correct mating of mating of seal faces on re-
assembly - you may wish to label the
components.
b) Only remove the seal seat from the back
of the rotor (56 & 57) if you intend to fit a new
seal or cup rubber (83)
Make up or purchase a sleeve as shown in
Fig 13a. Press sleeve down onto visible
edge of the cup rubber. This will force the
rubber down into the seal bore in the rotor.
The seal face will be pushed out of it’s bore.
Do not lever out the seal face with
screwdrivers or similar tools as seal
materials are brittle and are easily damaged
or broken. Eye protection is advised. If the
Page 24
Figure 12
Seal Seat
Removal
Figure 13
Seal Removal from Rotor