Flowserve ISC2 Dual Pusher Repair - Manual (Page 3)

3
2 Disassembly
When disassembling the seal, inspect for conditions which may have caused the
seal to be removed from service. If seal was removed due to premature failure,
determine what conditions caused that failure and correct any problems prior to
returning the repaired seal to service. For assistance with seal failure analysis,
please contact your Flowserve representative.
3 Repair or Replace Guide
Seal parts that are always replaced
• Inboard and outboard stationary faces [14] and [14.1]
• Inboard and outboard rotating faces [15] and [15.1]
• Springs [16]
• Square-headed pin [5]
• Rotating face support drive pin [5.1], sizes > 2.750 inch (70 mm)
• Inboard and outboard stationary face supports [100] and [100.1]
• All O-rings [13], [13.1], [13.2], [13.3], [76], [76.1], [71], [18.1] and [19]
• Gland gasket [18]
• Vibration dampeners [183]
• Snap ring [111], sizes ≤ 2.750 inch (70 mm)
• Setting devices [103] and cap screws [40]
• Cup-point [57] and quarter-dog set screws [57.1]
Seal parts that are reconditionable
• Inner gland [11]
• Outer gland [11.1]
• Sleeve assembly [1]
• Rotating face support [99]
• Drive collar [58]
4 Inspection and Reconditioning
There are certain critical areas of each part where special attention should be
paid to the condition. If any of the listed areas show signs of wear, corrosion
or other defects that cannot be removed without affecting the dimensional size
of the surfaces by more than 0.001 - 0.002 inch [0.025 - 0.05 mm], then the
respective part should be replaced. If grit blasting is performed, polish the O-ring
surfaces to achieve the required surface finish [see critical area listings for finish
requirements]. If any parts require machining to correct damage, please contact
your Flowserve representative for dimensional requirements, or for any other
questions regarding repair.