Flowserve ISC2 Dual metal bellows sea - Manual (Page 6)

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4.5 Drive collar [58] see Figure 9.
A Threaded holes - Inspect for thread damage and
re-tap as necessary.
B ID bore roundness - No greater than 0.002 inch
(0.05 mm) TIR.
C Set screws - Replace cup-point and quarter-dog
set screws with those included with the repair kit.
Make sure the same threaded holes are used.
Figure 7, sizes ≤ 2.750 inch (70 mm)
C
B
A
C
B
A
A C
C
B
A E
A
C
B
A
C
B
A
4.4 Rotating face support [99] see Figures 7 and 8.
A O-ring surfaces - Inspect for wear, nicks, scratches or corrosion. Required
surface finish: 63 RMS.
B Pumping vanes - Inspect for wear, damage or corrosion.
C Drive flats or pin - Inspect for wear, indentation or corrosion.
Figure 8, sizes > 2.750 inch (70 mm)
Figure 9