Flowserve ISC2 Single Pusher Repair Manual de usuario descargar pdf (Pagina 4)

5 Seal Assembly Preparation

Tools Needed:

• Sizes ≤ 2.750": 3/16", 1/8" hex key wrenches

• Sizes > 2.750": 1/8", 3/16" and/or 7/32" hex key wrenches

• Sizes ≤ 65 mm: 3 mm hex key wrench

• Sizes > 65 mm: 5 mm hex key wrench for standard bore

• Sizes > 65 mm: 6 mm hex key wrench for enlarged bore

• Silicone grease (included in repair kit)

• Ethyl alcohol and clean, lint-free towel for cleaning seal faces

• Needle nose pliers or tweezers

Figure 5

Figure 6

4.3 Drive Collar [58] see Figure 6.

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 point

set screws with those included with the repair kit.

Make sure the same threaded holes are used.

Figure 4b, sizes > 2.750 inch (70 mm)

Figure 4a, sizes ≤ 2.750 inch (70 mm)

6 Seal Assembly Instructions

Some assembly steps include blind ts of pins and drive ats. Mark the locations

of the pins or drive ats with a felt tip marker, or align the feature with another

visible feature on the seal to assist with assembly. All seal faces should be

cleaned with ethyl alcohol prior to placing the faces together at each respective

step in the assembly process.

6.1 Arrange O-rings by diametrical size. There are two sizes: quantity 3 of the

largest size [13], [13.1] and [76], and quantity 1 of the smallest size [19].

Prior to installing each O-ring at its respective step, lightly lubricate with

silicone grease, unless an alternative lubricant is specied, and stretch

slightly.

6.2 Place the sleeve assembly [1] on the work surface with the drive end (set

screw holes) positioned upward.

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Flowserve ISC2 Single Pusher Repair Manual de usuario Pagina 4