extract pages from operation & maintenance manual volume xiii

7/26/2019 Extract Pages From Operation & Maintenance Manual Volume Xiii

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INSTAL LA TION INSTRUCTIONS

AND

OPERATIONS MANUAL

I I SHORT COUPLED PUMPS I I


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PRINTED: June 15, 1991

Table of Contents

A BASEPIA1E (IF'SUPPLIED) 4

B. PUMP BOWL 4C. COLUMN"- OPENLINESHAFT 4D. COLUMN"- ENCLOSEDLINE SHAFT 6E.. PUMP IIEAD 7F. STUFFINGBOXOR MECHANICALSEAL 8G. DRIVER & DRIVE COUPLIN"G 9H. MISC.ASSEMBLIES 11

VI. STARTING, OPERATIONAND MAINTENANCE 12

A PRIOR TO START-UP 12

B. ~ START-UP 13C. NORMALOPERATIONAND MAINTENANCE 13D. DISMANTIlNG ANDASSEMBUNGPUMP BOWLS 14

E. BEARING AND WEAR RING REPIACEMENT 14F. COMMONCAUSESOF IMPROPER OPERATION 15


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SHORT COUPLED PUMPSPageNo.1

INSTALLATION & OPERATION INSTRUCTIONS

FOR

SHORT COUPLED PUMPS

READ THESE INSTRUCTIONS CAREFULLY BEFORE PROCEEDING

I. RECEIVING, UN-CRATING AND INSPECTION

A A physical check of all equipment should be made against the packing list and

inspected for obvious damage incurred during shipment.

C. Un-Crate and layout all the equipment in the order of installation on clean boards

or floor.

INSTALLATION EQUIPMENT AND TOOLS

A A portable or permanent derrick of sufficient strength and rigidity to lift the total

weight of the pump safely should be used. A conservative weight of the pump may

be obtained from the freight bill. The minimum travel of the derrick should be at

least 6' greater than the equipment. Hoist must have swivel hook.

One or two cable slings of sufficient strength to lift entire pump and must be long

enough to clear greatest shaft projection.

Set of mechanic's tools including an assortment of socket

wrenches.

Two pipe wrenches of sufficient size to handle shaft coupling and shafting. (Always

required for hollow shaft motor drive).


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SHORT COUPLED PUMPS

Page No.2M. Two sets of steel clamps to fit the column pipe. NOTE: One set required if only one

section of column is furnished.

N. Two 4 x 4 timbers or "Ii" beams (if unit is extra large and heavy), sufficiently long

to span installation opening.

R Thread and gasket compound such as Dow Corning Silastic or Permatex Form-A-

Gasket with thinner.

S. Two pipe wrenches of sufficient size to handle shaft enclosing tubing when appli- .

cable.

X. Putty knife.

III. SPECIAL PRECAUTIONS

A Make certain that no rags, wood scraps, etc., are lodged in any exposed openings.

Check pit depth and anchor bolt spacing against pump dimensions. lift and handle

unit carefully to prevent damage caused by bending strain being applied. DO NOT

LIFT OR LEVER A N Y ITEM BY ITS SHAFT. Take extra precautions when

handling mechanical seal, since this is a precision component and most delicate.

B. Do not allow pipe compound, solvent or any petroleum products to get to rubber

bearings.

IV. PREPARATION

A Clean all threading and flange faces with wire brush and paint with solvent. File

threading, if required, with three cornered file. The protective coating on threads

&flanges is a rust preventative and not a thread compound or gasket.


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SHORT COUPLED PUMPS

PageNo.3

B. Clean all shafting and couplings with a rag soaked with solvent. Make certain that

all bearings are clean.

C. If furnished, clean all tubing threads and shaft bearings thoroughly in solvent and

make certain that tubing faces are free of nicks, dents or burrs. Remove protective

caps from ends of tubing before starting.

F. Make a physical check of the discharge head and/or baseplate for proper fit tofoundation.

G. Check pipe ends and mating components to be sure there are no dents, nicks, and

burrs. The success of a proper pipe and tubing joint is dependent on the butt joint

of the ends. .

H. Check shaft ends for nicks, burrs, etc. The shaft alignment is dependent on the butt

joint of the shaft ends.

I. Check all boxed shafting for straightness using "V" blocks and dial indicator as

follows: (See Fig. A)1. Start with "V" blocks as close to threads as possible. Check two or more

places between "V" blocks to within .003" to .005" TJ.R.

2. Move "V" blocks about 20% of shaft length from each end. Check the center

of the shaft and the overhanging ends and straighten as above.

3. If straightening was required in Step B, return blocks to original position and

recheck Step A

4. Repeat steps until shaft checks within tolerance in both positions. Wipe shaft

clean after checking.

5. Straightening may performed by mechanical or heat pressure on the high

point.

Check ronout on impeller shaft extension by placing indicator dial toward end of

shaft and turning shaft slowly making certain that it stays to one side of the uppermost

bowl bearing. T.I.R. should not exceed .005".

Check and record total bowl lateral or end-play if prime mover is solid shaft. This

information will be required for flanged coupling assembly.


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SHORT COUPLED PUMPS

Page No.4v . INSTALLATION

A BASE PlATE (IF SUPPLIED)

1. Place baseplate over anchor bolts and allow to rest on foundation.

2 H the final elevation of the plate is critical" this should be taken into account

and checked at this time.

3. Attach hex nuts to anchor bolts and snug against baseplate to protect anchor

bolt threads.

4. Baseplate serves as a good base for the elevators and clamps to rest upon andas a protection for the foundation.

B. PUMPBOWL

1. Place the two seating beams on -the baseplate or foundation opening. -

2. Secure the proper clamp to the upper end of the bowl beneath a convenient

shoulder. Attach the sling to the clamp for enough out on the ears to allow

it removal after setting down on beams.-(If only one sling is used).

Hthe bowl is equipped with a strainer, hoist bowl to vertical position being

careful not to drag strainer across floor.

4. H there is any auxiliary piping to the bowl bearing or thermo-wells make

certain that the bowl portion is assembled to the bowl at this time.

5. Center bowl over installation opening then carefully lower until the clamp

ears are resting squarely on the beams. Remove the sling.

Oean the shaft threads, the discharge threads and but face or flange face and

the threads and face if tubing is furnished. Lightly oil the shaft threads and

screw coupling on halfway. Place a rag over the coupling to prevent entrance

of foreign matter during the next step in assembly.

COLUMN - OPEN LINE SHAFf. (See Figure B)

Refer to installation plans to determine correct sequence of column length.

1. Secure pipe clamp immediately beneath column coupling. If column is

flanged insert bolts and secure clamp below bottom of flange. Clamp should

keep bolts in position.


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SHORT COUPLED PUMPSPage No.5

2 Slide shaft into bottom of column pipe and allow it to protrude approxi-

mately l5" below bottom end of pipe. Make certain that sleeve area if

furnished, is toward the top 0fthe pipe. TIe a series of half hitches to the col-

umn pipe an to the shaftwith the 3/ 4"rope. Attach the sling to the clamp ears

as descnbed under Section B, Step 2

3. Hoist column to the vertical position, be sure not the drag shaft across floor.

.. Before centering column over bowl, tap side of column to remove any loose

matter.- -

4. Swing column over bawl, align shaft. Remove rag from shaft coupling, lowet:

until shaft contacts coupling then remove rope. Hold coupling turn shaft (lefthand threads) until shaft ends butt., Place one pipe wrench on coupling and

: ;one on line shaft. Vertically aligned and tighten securely. Remove wrench

marks form shaft and coupling with a flat file and emery cloth.

S. If bowl to column connection is threaded, apply thread compound to pipe

threads. Attach chain tongs to ballooned to column. Ease down on hoist and

at the same time turn pipe until it seats against mating shoulder in bowL

TIghten pipe into bowl securely.

..J j I

extract pages from operation & maintenance manual volume xiii

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