Goulds-pumps ANSI FAMILY IOM (ATEX Compliant) User Manual download pdf (Page 33)

APPENDIX VI

3198 Teflon

Sleeve Field Replacement Procedure

The Model 3198 Teflon

sleeve is field replaceable,

provided a controlled oven capable of heating the

sleeve to 550° F (228° C) and a method of machining

the sleeve after installation on the shaft are available.

CAUTION

Do not heat the sleeve with an open flame.

Irreparable damage will occur to the sleeve.

For those users who do not have the above facilities,

shaft/sleeve sub-assemblies are available from ITT

Goulds.

1. Remove the old or damaged sleeve (126) from

the shaft (122). The sleeve may be cut

lengthwise with a sharp knife.

2. Thoroughly clean the shaft. Pay particular

attention to the knurled area of the shaft under the

sleeve.

NOTE: The replacement sleeve will not have

the same dimensions as the sleeve which was

removed until it is mounted on the shaft and

machined.

3. Heat the replacement sleeve in a controlled oven

at 550° F (288° C) for 40 minutes.

CAUTION

Do not heat the sleeve with an open flame —

irreparable damage will occur to the sleeve.

! WARNING

The oven and sleeve are hot. Use insulated gloves

to prevent burn injuries.

4. Remove the sleeve from the oven.

5. Slide the sleeve onto the shaft immediately after

removing it from the oven. Push the sleeve onto

the shaft until the sleeve bottoms out on the

shoulder of the shaft (Fig. VI-1). The hook end of

the sleeve will extend beyond the knurled portion

of the shaft.

6. As the sleeve cools, it will shrink in length. Apply

light pressure to keep the sleeve against the shaft

shoulder. Maintain pressure until the hook

portion of the sleeve seats itself against the

shoulder under the hook (Fig. V-2).

CAUTION

Care must be taken not to damage the end of

the sleeve.

7. Allow the shaft and sleeve to cool completely.

8. Machine the Teflon

sleeve to the dimensions

and finish shown in Table VI-1.

Table VI-1

3198 Teflon

Sleeve Diameter and Finish

Frame Sleeve OD Surface Finish

STX 1.375 / 1.373

16 μ in.

MTX 1.750 / 1.748

16 μ in.

9. Face off the sleeve shoulder even with and

parallel to the shaft shoulder (Fig. VI-4).

ANSIFAM IOM - 5/08

135

Fig. VI-1

Fig. VI-2

Fig. VI-3

Fig. VI-4

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 41 42

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