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

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07/03
Hy~Line
and
Ultima
Lobe Pumps
Removal:
a) Remove seal housings (89) from back of
rotor case. (See section 6.06).
b) Press lip seals out of housings.
c) Check that surface of shaft where lip seal
runs is smooth and is not grooved.
For LH32 and LH34 models:
Check that the surface of the sleeve where
the lip seal runs is smooth and not grooved.
If necessary replace the sleeve by lightly
heating the sleeve to break the bond of the
adhesive and then, with a flat bladed
screwdriver, prising the sleeve off the shaft.
Re-assembly:
a) Push new lip seals into housings.
Assemble spacer collar, wave spring and
drive plate as shown on figure 16. (Also see
section 6.06).
b) When re-fitting seal housings, align the 3
slots in outer edge of drive plate with the 3
pins. When fitted, ensure drive plate can
slide freely against spring pressure.
c) You may wish to insert the joint ring (83a)
and static primary seal seats at this point
(see section 6.03).
d) When re-fitting rotor case to bearing
housing, take care that lip seals and
mechanical seals (80) are not damaged by
the shaft splines or shaft ends.
Re-assembly:
a) Push new lip seals into the seal housings.
b) Fit the O-rings into the grooves in the
outside diameter of the housings
c) Assemble the seal housings (89) into the
rear of the rotor case (51) and clamp in
position using the six clamp washers (84)
and screws (85).
d) If the shaft sleeves have been removed,
fit new sleeves. These need to be glued to
the shaft by spraying the area of the shaft
were the sleeve is to fit and also the inside
bore of the sleeve itself with
LOCTITE
TM
Activator 7471. Then smear a
generous amount of LOCTITE
TM
635 to the
area of the shaft where the sleeve is to fit.
Slide the sleeves onto the shafts up to the
shoulder on the shaft, note that the sleeve
cannot be pushed fully against the shoulder
because of the radius in the corner. The
sleeve should be fitted with the chamfered
end towards the front of the pump. Rotate
the sleeve on the shaft to ensure that the
LOCTITE
TM
forms a seal as well as a bond.
Leave for 5 minutes to allow the bonding
process to occur.
e) Continue by following the instructions in
section 6.06 for assembly of the mechanical
seal.
Page 27
Figure 16
Single
Flushed
Mechanical
Seal