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Installation, Operation & Maintenance Guide

Style 58

PREPARATION

Verify that equipment has been properly
shut off and rendered inoperative according
to plant safety protocol (e.g. lockout/tagout
procedures).

1

. Disassemble the pump seal chamber, in

accordance with the pump OEM instructions, to
expose the existing seal.

Document how the seal chamber is
disassembled for re-assembly.

2

. Carefully remove the existing sealing device,

taking care not to damage the shaft.

3

. Clean the shaft, shaft sleeve (if present), and

seal chamber face of rust, burrs, grit, sharp

edges, and set screw damage using fine emery
cloth. Wipe clean.

Avoid making flat spots or reducing the
shaft diameter.

4

. If the pump is equipped with a shaft sleeve,

verify the condition of its O-ring or gasket and
ensure that it is properly located (fully engaged
against step/hook/snap ring).

5

. Sealing surfaces and the shaft or shaft sleeve

must have at least a 63 Ra-

µ

in surface finish as

seen in

Figure 1

.

6

. For ease of installation, the leading edge of the

shaft or sleeve should be chamfered as shown
in

Figure 1

and all parts should be deburred.

(B) BORE ID

(A) SLEEVE OD

.030 MIN. x 30°

63

63

63

Figure 1: Surface finish and chamfer locations. Fully assembled pump without seal.

Page 2 of 6

Содержание Style 58

Страница 1: ...TERS REPAIR SERVICE 1 Jackson Street Rua Javaés 441 443 1719 South Sonny Avenue Essex Junction VT 05452 Bom Retiro Sao Paulo Gonzales LA 70737 Brazil CEP 01130 010 TEL 802 878 8307 TEL 55 11 3736 7373 TEL 225 484 0007 FAX 802 878 2479 FAX 55 11 3736 7355 FAX 225 341 8922 REVISED February 2019 ...

Страница 2: ...ed out by qualified personnel who have thoroughly read all instructions 3 The seal must only be used for its intended application Flex A Seal cannot be held liable for use outside the scope of the recommended application 4 Inspect the replacement seal prior to removal of the old seal or installation of the new seal using the technical information provided in this document Contact a Flex A Seal rep...

Страница 3: ...er face of rust burrs grit sharp edges and set screw damage using fine emery cloth Wipe clean Avoid making flat spots or reducing the shaft diameter 4 If the pump is equipped with a shaft sleeve verify the condition of its O ring or gasket and ensure that it is properly located fully engaged against step hook snap ring 5 Sealing surfaces and the shaft or shaft sleeve must have at least a 63 Ra µin...

Страница 4: ...haft movement shaft runout 0 0015 0 003 in Fig 3 Radial bearing fit 0 002 0 003 in Fig 4 Bearing frame perpendicularity 0 0005 in in Fig 5 Axial shaft movement end play 0 005 in Fig 6 Seal chamber bore concentricity 0 005 in Fig 7 Seal chamber face squareness 0 0005 in in For proper function and satisfactory operation of the seal it is imperative that connections dimensions finishes and alignments...

Страница 5: ... 3 Ensure the shaft and seal housing have been properly cleaned as described in the preparation section 4 Lightly lubricate the seal sleeve O ring with a suitable and compatible lubricant 5 Gently slide the seal on the shaft with the gland gasket facing but clear of the seal chamber 6 Reassemble the pump as described by the pump OEM 7 Bolt the gland to the seal chamber using the Legacy Method Star...

Страница 6: ...tect personnel Leakage could come from a number of leak paths in the seal or be caused by changes in the pump operation or condition Although seals should be inspected regularly for signs of leakage a properly selected and functioning mechanical seal will run for extended durations without need for extra attention and should not be disturbed unnecessarily i e shut down and disassembled without cau...

Страница 7: ...ding to OEM and plant specifications 2 Dismantle equipment sufficiently so that the gland plate and seal housing are exposed and accessible for service 3 Reset the setting clips that were saved from installation 4 Back out the cup point set screws 5 Remove the gland bolts nuts in an even manner 6 Carefully slide the seal out and off of the shaft If a part is going to be returned for service or to ...

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