Flowserve ISC2 Dual Pusher Repair - Manual (Page 10)

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Figure 24
Figure 25
Figure 26
6.19 For sizes ≤ 2.750 inch (70 mm) install the snap
ring [111] onto the sleeve assembly into the sleeve
groove beneath the rotating face support.
Note: Fully seating the rotating face support
[99] on the sleeve assembly [1] will require
compressing the springs of the inner seal by
pressing down on the inner gland [11.1]. Make
sure the snap ring is fully engaged in the groove
in the sleeve. See Figure 24.
For sizes > 2.750 inch (70 mm) rotate the flats of
the rotating face support [99] in the groove of the
sleeve [1]. There are 2 different types of pins used
to lock the rotating face support to the sleeve
assembly: a button-head pin and a straight pin. If a
button-head pin [5.1] is used, align the slot in the
rotating face support with the radial hole in the
sleeve. Insert the button-head pin into this hole. If
straight axial pins [5.1] are used, rotate the rotating
face support to align the 2 slots on the sleeve with
the 2 slots on the inner diameter of the rotating
face support until they form holes. Insert the
straight pins [5.1] into these holes. See Figure 25.
6.20 Repeat steps 6.2 through 6.14 to assemble the
outboard rotating face [15.1], outboard rotating
face O-ring [76.1], and outboard vibration
dampener [183] into the sleeve/rotating face
support assembly and outboard stationary face
support assembly [14.1], [100.1], [5], [16], [13.2],
[13.3] into the gland assembly [11.1].
6.21 Place the outer gland assembly face down onto
the sleeve assembly. See Figure 26. During the
installation, be careful to align the pins with their
target slots.
Caution: Do not rotate the gland assembly during
installation. This may cause the springs [16] to
buckle. Verify the pins are aligned with the slots
by exercising the gland.
6.22 Thread set screws [57] and quarter-dog set screws
[57.1] in proper, equally spaced locations in the
drive collar [58]. Note: some sizes > 2.750 inch
(70 mm) do not utilize quarter-dog set screws.