Viking pump Series 123 Service manual

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Viking pump Series 123 Service manual | Manualzz

TECHNICAL SERVICE MANUAL

UNIVERSAL SEAL HEAVY DUTY PUMPS

SERIES 124A, 4124A, 124AE, 4124AE, AND 4124B CAST IRON

SERIES 126A AND 4126A DUCTILE IRON

SERIES 123A AND 4123A STEEL

SERIES 127A AND 4127A STAINLESS STEEL

SIZES H, HL, K, KK, L, LQ, LL

SECTION TSM 630

PAGE

ISSUE

1 Of 12

f

CONTENTS

Special Information . . . . . . . . . . . . . . . . . . . 3

Maintenance . . . . . . . . . . . . . . . . . . . . . . 3

Mechanical Seal Pumps . . . . . . . . . . . . . . . . 4

Cartridge Type Optional Stuffing Box Seal . . . . . . . 4

Packed Pumps . . . . . . . . . . . . . . . . . . . . . 6

Optional Behind the Rotor Seal . . . . . . . . . . . . . 8

Thrust Bearing Adjustment . . . . . . . . . . . . . . .

10

Installation of Carbon Graphite Bushings . . . . . . . .

11

Pressure Relief Valve Instructions . . . . . . . . . . .

11

INTRODUCTION

The illustrations used in this manual are for identification purposes only and cannot be used for ordering parts. Obtain a parts list from the factory or a Viking representative. Always give a complete name of part, part number and material with the model number and serial number of pump when ordering repair parts. The unmounted pump or pump unit model number and serial number are on the nameplate.

In the Viking model number system, basic size letters are combined with series number (124A, 4124A, 124AE, 4124B,

126A, 4126A, 123A, 4123A, 127A) indicating basic pump construction material.

UNMOUNTED PUMP

PACKED MECH. SEAL

H124A

H126A

H123A

H127A

HL124A

HL126A

HL123A

HL127A

K124A

K126A

K123A

K127A

KK124A

KK126A

KK123A

KK127A

L124A

L124AE

L126A

LQ124A LQ4124A

LQ124AE LQ4124AE

LQ126A

LQ123A

LQ127A

LL124A

LL124AE

LL126A

LL123A

LL127A

LQ4124B

LQ4126A

LQ4123A

LQ4127A

LL4124A

LL4124AE

LL4124B

LL4126A

LL4123A

LL4127A

H4124A

H4124B

H4126A

H4123A

H4127A

HL4124A

HL4124B

HL4126A

HL4123A

HL4127A

K4124A

K4124B

K4126A

K4123A

K4127A

KK4124A

KK4124B

KK4126A

KK4123A

KK4127A

L4124A

L4124AE

L4124B

L4126A

UNITS

A = Universal Seal Pump

B = Universal Seal Pump with mechanical seal behind the rotor

AE = Universal Seal Pump

with larger rotor shaft

Units are designated by the unmounted pump model numbers followed by a letter indicating drive style.

V = V-Belt

D = Direct Connected

R = Viking Speed Reducer

P = Commercial Speed Reducer

fIGURE 1 - SIZES H AND HL fIGURE 2 - SIZES K, KK AND L fIGURE 3 - SIZES LQ AND LL

VIKING PUMP, INC.

A Unit of IDEX Corporation

Cedar Falls, IA 50613 USA

SAfETY INfORMATION AND INSTRUCTIONS

IMPROPER INSTALLATION, OPERATION OR MAINTENANCE Of PUMP MAY CAUSE SERIOUS INJURY

OR DEATH AND/OR RESULT IN DAMAGE TO PUMP AND/OR OTHER EQUIPMENT. VIKING’S WARRANTY

DOES NOT COVER fAILURE DUE TO IMPROPER INSTALLATION, OPERATION OR MAINTENANCE.

THIS INfORMATION MUST BE fULLY READ BEfORE BEGINNING INSTALLATION, OPERATION OR

MAINTENANCE Of PUMP AND MUST BE KEPT WITH PUMP. PUMP MUST BE INSTALLED, OPERATED

AND MAINTAINED ONLY BY SUITABLY TRAINED AND QUALIfIED PERSONS.

THE fOLLOWING SAfETY INSTRUCTIONS MUST BE fOLLOWED AND ADHERED TO AT ALL TIMES.

Symbol

Legend :

!

Danger - Failure to follow the indicated instruction may result in serious injury or death.

WARNING

Warning - In addition to possible serious injury or death, failure to follow the indicated instruction may cause damage to pump and/or other equipment.

!

BEfORE opening any liquid chamber (pumping chamber, reservoir, relief valve adjusting cap fitting, etc.) be sure that :

● Any pressure in the chamber has been completely vented through the suction or discharge lines or other appropriate openings or connections.

● The pump drive system means (motor, turbine, engine, etc.) has been “locked out” or otherwise been made non-operational so that it cannot be started while work is being done on the pump.

● You know what material the pump has been handling, have obtained a material safety data sheet (MSDS) for the material, and understand and follow all precautions appropriate for the safe handling of the material.

WARNING

!

WARNING

BEfORE operating the pump, be sure all drive guards are in place.

!

!

!

DO NOT operate pump if the suction or discharge piping is not connected.

!

!

!

WARNING

DO NOT place fingers into the pumping chamber or its connection ports or into any part of the drive train if there is any possibility of the pump shafts being rotated.

DO NOT exceed the pumps rated pressure, speed, and temperature, or change the system/duty parameters from those the pump was originally supplied, without confirming its suitability for the new service.

!

WARNING

!

WARNING

BEfORE operating the pump, be sure that:

● It is clean and free from debris

● all valves in the suction and discharge pipelines

are fully opened.

● All piping connected to the pump is fully supported

and correctly aligned with the pump.

● Pump rotation is correct for the desired direction

of flow.

!

WARNING

INSTALL pressure gauges/sensors next to the pump suction and discharge connections to monitor pressures.

USE extreme caution when lifting the pump. Suitable lifting devices should be used when appropriate. Lifting eyes installed on the pump must be used only to lift the pump, not the pump with drive and/or base plate.

If the pump is mounted on a base plate, the base plate must be used for all lifting purposes. If slings are used for lifting, they must be safely and securely attached.

For weight of the pump alone (which does not include the drive and/or base plate) refer to the Viking Pump product catalog.

DO NOT attempt to dismantle a pressure relief valve that has not had the spring pressure relieved or is mounted on a pump that is operating.

AVOID contact with hot areas of the pump and/or drive. Certain operating conditions, temperature control devices (jackets, heat-tracing, etc.), improper installation, improper operation, and improper maintenance can all cause high temperatures on the pump and/or drive.

THE PUMP must be provided with pressure protection.

This may be provided through a relief valve mounted directly on the pump, an in-line pressure relief valve, a torque limiting device, or a rupture disk. If pump rotation may be reversed during operation, pressure protection must be provided on both sides of pump.

Relief valve adjusting screw caps must always point towards suction side of the pump. If pump rotation is reversed, position of the relief valve must be changed.

Pressure relief valves cannot be used to control pump flow or regulate discharge pressure. For additional information, refer to Viking Pump’s Technical Service

Manual TSM 000 and Engineering Service Bulletin

ESB-31.

THE PUMP must be installed in a matter that allows safe access for routine maintenance and for inspection during operation to check for leakage and monitor pump operation.

SECTION TSM 630 ISSUE F PAGE 2 OF 12

This manual deals only with Series 124A, 4124A, 124AE,

4124AE, 4124B, 126A, 4126A, 123A, 4123A, 127A, and 4127A

Heavy Duty Bracket Mounted Pumps. Refer to figures 1

through 13 for general configuration and nomenclature used in this manual. Pump specifications and recommendations are listed in Catalogue Section 630, Heavy Duty Bracket

Mounted Pumps, with Universal Seal Type Bracket.

SPECIAL INfORMATION

DANGER !

Before opening any Viking pump liquid chamber (pumping chamber, reservoir, relief valve adjusting cap fitting, etc.)

Be sure:

1. That any pressure in the chamber has been completely vented through the suction or discharge lines or other appropriate openings or connections.

2. That the driving means (motor, turbine, engine, etc.) has been “locked out” or made non-operational so that it cannot be started while work is being done on pump.

3. That you know what liquid the pump has been handling and the precautions necessary to safely handle the liquid. Obtain a material safety data sheet (MSDS) for the liquid to be sure these precautions are understood.

failure to follow above listed precautionary measures may result in serious injury or death.

ROTATION: Viking pumps operate equally well in a clockwise or counterclockwise rotation. Shaft rotation determines which port is suction and which is discharge.

Port in area where pumping elements (gear teeth) come out of mesh is suction port.

PRESSURE RELIEF VALVES:

1. Viking pumps are positive displacement pumps and must be provided with some sort of pressure protection.

This may be a relief valve mounted directly on the pump, an inline pressure relief valve, a torque limiting device or a rupture disk.

2. There are relief valve options available on those pump models designed to accept a relief valve. Options may include a return to tank relief valve and a jacketed relief valve. Pumps equipped with a jacketed head plate are generally not available with a relief valve.

3. If pump rotation is reversed during operation, pressure protection must be provided on both sides of pump.

4. Relief valve adjusting screw cap must always point towards suction side of pump. If pump rotation is reversed, remove pressure relief valve and turn end for end.

5. Pressure relief valves cannot be used to control pump flow or regulate discharge pressure.

For additional information on pressure relief valves, Refer to Technical Service Manual TSM000 and Engineering

Service Bulletin ESB-31.

SPECIAL MECHANICAL SEALS:

Extra care should be taken in repair of these pumps. Be sure to read and follow all special instructions supplied with your pump.

MAINTENANCE

Series 124A, 4124A, 126A, 4126A, 123A, 4123A, 127A, and

4127A pumps are designed for long, trouble-free service life under a wide variety of application conditions with a minimum of maintenance. The points listed below will help provide long service life.

LUBRICATION: External lubrication must be applied slowly with a hand gun to all lubrication fittings every 500 hours of operation with multi-purpose grease, NLGI # 2. Do not overgrease. Applications involving very high or low temperatures will require other types of lubrication. Refer to Engineering

Service Bulletin ESB-515. Consult factory with specific lubrication questions.

PACKING ADJUSTMENT: New packed pumps require initial packing adjustment to control leakage as packing “runs in”.

Make initial adjustments carefully and do not over -tighten packing gland. After initial adjustment, inspection will reveal need for packing gland adjustment or packing replacement.

Refer to instructions under Disassembly and Assembly,

page 7, regarding repacking pump.

CLEANING PUMP: Keep pump as clean as possible. This will facilitate inspection, adjustment and repair work and help prevent overlooking a dirt covered grease fitting.

STORAGE: If pump is to be stored, or not used for six months or more, pump must be drained and a light coat of light oil must be applied to all internal pump parts.

Lubricate fittings and apply grease to pump shaft extension.

Viking suggests rotating pump shaft by hand one complete revolution every 30 days to circulate the oil. Tighten all pump assembly bolts before putting pump in service after being stored.

SUGGESTED REPAIR TOOLS: The following tools must be available to properly repair series 124A, 4124A, 126A,

4126A, 123A, 4123A, 127A, and 4127A pumps. These tools are in addition to standard mechanics’ tools such as openend wrenches, pliers, screwdrivers, etc. Most of the items can be obtained from an industrial supply house.

1. Soft Headed hammer

2. Allen wrenches (some mechanical seals and set collars)

3. Packing hooks, flexible (packed pumps)

4. Mechanical seal installation sleeve

2-751-002-900 for 1.125 inch seal; H-HL pumps.

2-751-003-900 for 1.4375 inch seal; K-LL pumps.

5. Bearing locknut spanner wrench

(Source: #471 J. H. Williams & Co. or equal)

6. Spanner wrench, adjustable pin type for use on bearing housing (Source: #482 J. H. Williams & Co. or equal)

7. Brass bar

8. Arbor press

SECTION TSM 630 ISSUE F PAGE 3 OF 12

REPAIR: MODELS H, HL, K, KK, L, LQ AND LL

CARTRIDGE MECHANICAL SEAL PUMPS

4

5

6

ITEM

1

2

3

7

8

9

NAME Of PART

Locknut

Lockwasher

End Cap

Lip Seal

Bearing Spacer Collar (Outer)

Ball Bearing

Bearing Spacer Collar (Inner)

Ring, Half Round (Not H, HL)

Bearing Housing

ITEM NAME Of PART

10 Cartridge Seal

11 Capscrew for Bracket

12 Grease Fitting

13 Bracket and Bushing Assembly

14 Bracket Bushing

15 Bracket Gasket

16 Pipe Plug

17 Casing (Tapped or Flanged)

18 Rotor and Shaft Assembly

ITEM NAME Of PART

19 Idler and Bushing Assembly

20 Idler Bushing

21 Head Gasket

22 Idler Pin

23 Head and Idler Pin Assembly

24 Capscrew for Head

25 Relief Valve Gasket

26 Internal Relief Valve

27 Capscrew for Valve

fIGURE 4 - EXPLODED VIEW SERIES 4123A, 4124A, 4124AE, 4126A, AND 4127A MODELS

DANGER !

Before opening any Viking pump liquid chamber (pumping chamber, reservoir, relief valve adjusting cap fitting, etc.)

Be sure:

1. That any pressure in the chamber has been completely vented through the suction or discharge lines or other appropriate openings or connections.

2. That the driving means (motor, turbine, engine, etc.) has been “locked out” or made non-operational so that it cannot be started while work is being done on pump.

3. That you know what liquid the pump has been handling and the precautions necessary to safely handle the liquid. Obtain a material safety data sheet (MSDS) for the liquid to be sure these precautions are understood.

failure to follow above listed precautionary measures may result in serious injury or death.

CARTRIDGE MECHANICAL

SEAL REPLACEMENT

MODELS:

H, HL, K, KK, L ,LQ, LL4124A AND LL4124AE CAST IRON

H, HL, K, KK, L, LQ, AND LL4126A DUCTILE IRON

H, HL, K, KK, LQ, AND LL4123A STEEL

H, HL, K, KK, LQ, AND LL4127A STAINLESS STEEL

for complete pump disassembly and assembly see pages 7 and 8.

CARTRIDGE MECHANICAL

SEAL REMOVAL

1. Bend up tang of lockwasher and with a spanner wrench, remove locknut and lockwasher from shaft.

2. Loosen two set screws in the face of the bearing housing and remove the bearing housing assembly from the bracket.

3. Remove the pair of half round rings under the inner spacer collar from the shaft. There are no half round rings on the “H” and “HL” size pumps.

4. If flush or barrier fluid tubes are connected to the seal gland, disconnect before removing seal. Loosen the set screws on the cartridge seal collar to free the cartridge seal from the shaft. Remove the two gland capscrews and slide cartridge seal out through bearing housing opening.

SECTION TSM 630 ISSUE F PAGE 4 OF 12

CARTRIDGE MECHANICAL

SEAL INSTALLATION

1. NOTE: Burrs left on shaft can damage O-ring on seal sleeve during installation. Inspect shaft for burrs and remove any found with a fine grade of emery cloth.

2. Clean rotor shaft and face of seal chamber.

3. Place tapered installation sleeve on shaft. Coat rotor shaft, tapered installation sleeve, and O-ring in the inside diameter of cartridge seal sleeve with a generous amount of light oil. Refer to figure 5.

TAPERED INSTALLATION SLEEVE

SHAfT

COAT ROTOR SHAfT, TAPERED INSTALLATION

SLEEVE AND INNER DIAMETER Of MECHANICAL

SEAL WITH LIGHT OIL BEfORE ASSEMBLY.

fIGURE 5

4. Slide cartridge seal over installation sleeve on shaft until it contacts the seal chamber face. Remove tapered installation sleeve from shaft.

5. Place pair of half round rings in groove on shaft and turn bearing housing assembly into bracket. There are no half round rings on the “H” and “HL” size pumps.

6. Put lockwasher and locknut on shaft. Tighten locknut and bend one tang of lockwasher into slot of locknut.

7. Adjust pump end clearance as in Thrust Bearing

Adjustment page 10.

8. Insert gland capscrews and secure gland to bracket face.

NOTE: turn shaft several turns while gland is loose to center seal; then tighten gland tight enough to compress gasket. Tighten only enough to contain leakage and not to distort gland.

9. Lock cartridge seal drive collar to shaft and remove or turn centering clips out of the way so as to clear the drive collar.

10. Turn shaft by hand or jog motor to check drive collar for runout.

11. Connect flush line or vent stuffing box seals without flush line until liquid is present on start up.

NOTE: For maximum seal life, flush line should be used.

DANGER !

Before starting pump, be sure all drive equipment guards are in place.

failure to properly mount guards may result in serious injury or death.

ASSEMBLY

OPTIONAL MECHANICAL SEAL

MODELS:

H, HL, K, KK, L, LQ, AND LL4124A CAST IRON

L, LQ AND LL 4124AE CAST IRON

H, HL, K, KK, L, LQ, AND LL4126A DUCTILE IRON

H, HL, K, KK, LQ, AND LL4123A STEEL EXTERNALS

H, HL, K, KK, LQ AND LL4127A STAINLESS STEEL

This seal type can be installed as an alternate to the cartridge mechanical seal. The seal is setscrew driven, is simple to install and good performance will result if care is taken during installation.

For complete pump disassembly and assembly see pages

7 and 8. For Step 6, disassembly, remove the appropriate nuts, capscrews, seal holder and seal seat. Remove the pipe plug in the bracket and loosen the setscrews holding the mechanical seal rotary member to the shaft. This must be done before the rotor is removed to avoid damage to the seal and the rotor shaft.

The following steps are for mechanical seal assembly.

1. Clean rotor shaft and seal housing bore. Make sure they are free of dirt, grit and scratches. Gently radius leading edge of the shaft diameter over which seal is to be placed.

Never touch mechanical seal faces with anything except clean hands or clean cloth. Minute particles can scratch the seal faces and cause leakage.

2. Place tapered installation sleeve on the shaft. Coat tapered sleeve and inside of the rotary member with a generous quantity of light oil. Grease is not recommended. Start rotary member on shaft and over tapered sleeve. Refer to figure 6.

TAPERED INSTALLATION SLEEVE

MECHANICAL SEAL

ROTARY MEMBER

fIGURE 6

SHAfT

SECTION TSM 630 ISSUE F PAGE 5 OF 12

CHANGES:

5/7/2007

Changed Teflon to PTfE.

Changed Issue from to .

3. Move rotary member so setscrews are directly below seal access holes on side of bracket.

Tighten all setscrews securely to shaft. Some seals are equipped with holding clips which compress the seal springs. Remove holding clips to release springs after seal is installed on shaft.

4. FOR “O-RING” GASKET TYPE MECHANICAL SEAL

SEAT: Lubricate outer diameter of O-Ring seal gasket with oil. Flush sealing faces of both rotary member and seal seat with oil and press seal seat in to bore until back, unlapped face, is flush with bore. Install

FOR “CLAMPED-IN” TYPE MECHANICAL SEAL

SEAT: Flush sealing faces of both rotary member and seal seat with oil and install seal seat and seat gasket over end of shaft against machined bracket face. Install other seal gasket, seal holder, capscrews, and nuts and tighten securely. Remove tapered installation sleeve.

5. Connect flush line or vent stuffing box for seals without flush line until liquid is present on start up.

NOTE: For maximum seal life, flush line should be used.

REPAIR: MODELS H, HL, K, KK, L, LQ AND LL

PACKED PUMPS

4

5

6

ITEM

1

2

3

Locknut

Lockwasher

End Cap

Lip Seal

Bearing Spacer Collar (Outer)

Ball Bearing

NAME Of PART

7

8

9

Bearing Spacer Collar (Inner)

Ring, Half Round (Not H, HL)

Bearing Housing

10 Packing Gland

11 Packing Gland Nut

ITEM NAME Of PART

12 Packing Gland Capscrew

13 Packing

14 Packing Retainer Washer

15 Capscrew for Bracket

16 Grease Fitting

17 Bracket and Bushing Assembly

18 Bracket Bushing

19 Bracket Gasket

20 Pipe Plug

21 Casing (Tapped or Flanged)

22 Rotor and Shaft Assembly

ITEM NAME Of PART

23 Idler and Bushing Assembly

24 Idler Bushing

25 Head Gasket

26 Idler Pin

27 Head and Idler Pin Assembly

28 Capscrew for Head

29 Relief Valve Gasket

30 Internal Relief Valve

31 Capscrew for Valve

fIGURE 7 - EXPLODED VIEW SERIES 123A, 126A, 124A AND 4127A MODELS

SECTION TSM 630 ISSUE F PAGE 6 OF 12

DISASSEMBLY

BALL BEARING BEARING HOUSING

DANGER !

Before opening any Viking pump liquid chamber (pumping chamber, reservoir, relief valve adjusting cap fitting, etc.)

Be sure:

1. That any pressure in the chamber has been completely vented through the suction or discharge lines or other appropriate openings or connections.

2. That the driving means (motor, turbine, engine, etc.) has been “locked out” or made non-operational so that it cannot be started while work is being done on pump.

3. That you know what liquid the pump has been handling and the precautions necessary to safely handle the liquid. Obtain a material safety data sheet (MSDS) for the liquid to be sure these precautions are understood.

failure to follow above listed precautionary measures may result in serious injury or death.

1. Mark head and casing before disassembly to insure proper reassembly. The idler pin, which is offset in pump head, must be positioned toward and equal distance between port connections to allow for proper flow of liquid through the pump.

Remove head from pump. Do not allow idler to fall from idler pin. Tilt top of head back when removing to prevent this. Avoid damaging head gasket. If pump is furnished with pressure relief valve, it need not be removed from head or disassembled at this point. Refer to Pressure

Relief Valve Instructions, page 11.

If pump has jacketed head plate, it will separate from head when it is removed. The gasket between head and jacket head plate must be totally removed. Use new gasket when assembling pump.

2. Remove idler and bushing assembly.

3. Insert length of hardwood or brass through port opening between rotor teeth to keep shaft from turning. Bend up tang of lockwasher and with a spanner wrench, remove locknut and lockwasher from shaft.

4. Loosen two setscrews in the face of the bearing housing and remove the bearing housing assembly from the bracket. Refer to figure 8.

5. Remove pair of half round rings under the inner spacer collar from the shaft. There are no half round rings on the “H” and “HL” size pumps.

HALf ROUND

RINGS

6. Remove packing gland capscrews, slide packing gland out of stuffing box, and remove packing.

NOTE: Reference cartridge seal replacement beginning on page 3 when disassembling seal pump.

7. Carefully remove rotor and shaft to avoid damaging bracket bushing.

8. Loosen two radial setscrews in flange of bearing housing and with a spanner wrench remove the outer end cap with closure and outer bearing spacer collar.

9. Remove the double row ball bearing, closure and inner bearing spacer collar from the bearing housing.

10. Clean all parts thoroughly and examine for wear and damage. Check lip seals, ball bearing, bushings, and idler pin and replace if necessary. Check all other parts for nicks, burrs, excessive wear and replace if necessary.

Wash bearings in clean solvent. Blow out bearings with compressed air. Do not allow bearings to spin; turn them slowly by hand. Spinning bearings will damage race and balls. Make sure bearings are clean, then lubricate with light oil and check for roughness. Roughness can be determined by turning outer race by hand.

11. Casing can be checked for wear or damage while mounted on bracket.

ASSEMBLY

fIGURE 8

SETSCREW

SPACER COLLAR

SHAfT

LIPSEAL

END CAP

SETSCREW

1. Install bracket bushing. If bracket bushing has a lubrication groove, install bushing with groove at 6.00 o’clock position in bracket. If carbon graphite, Refer to

Installation of Carbon Graphite Bushings, page 11.

2. Coat shaft of rotor shaft assembly with light oil. Start end of shaft in bracket bushing turning from right to left, slowly pushing rotor in casing.

SECTION TSM 630 ISSUE F PAGE 7 OF 12

3. Coat idler pin with light oil and place idler and bushing on idler pin in head. If replacing with carbon graphite bushing, Refer to installation of Carbon Graphite

Bushings, page 11.

4. Using a .010 to .015 inch head gasket, install head and idler assembly on pump. Pump head and casing were marked before disassembly to insure proper reassembly.

If not, be sure idler pin, which is offset in pump head, is positioned toward the equal distance between port connections to allow for proper flow of liquid through pump. If pump is equipped with jacketed headplate, install at this time along with new gasket.

Tighten head capscrews evenly.

5. When assembling packed pump, use packing suitable for liquid being pumped. Install packing, staggering the joints from one side of shaft to other. Lubricate packing rings with oil, grease, or graphite to aid assembly. Install packing gland, capscrews, and nuts. Make sure gland is installed square and nuts are tightened evenly. Tighten nuts until packing gland is snug against packing.

6. Slide inner spacer collar over shaft with recessed end facing rotor. H and HL size bearing spacer collars are not recessed.

Place pair of half round rings on shaft and slide inner bearing spacer collar over half round rings to lock them in place. There is no pair of half round rings on the H and HL size pumps.

7. Install the lip seal (lip toward end of shaft) in the bearing housing and turn the bearing housing into the bracket.

8. Pack the ball bearing with grease, place on the shaft and push or drive into place in housing.

9. Install the lipseal (with lip toward end of shaft) and bearing spacer collar in the outer end cap and turn the end cap into the bearing housing until tight against the bearing. Lock in place with two set screws in the flange of the bearing housing.

10. Put lockwasher and locknut on shaft. Insert length of hardwood or brass through port opening between rotor teeth to keep shaft from turning. Tighten locknut to 50-

70 ft.– lbs. Torque (H, HL) or 100-130 ft. – lbs. Torque

(K, KK, L, LQ, LL) . Bend one tang of lockwasher into slot of locknut. If tang does not line up with slot, tighten locknut until it does. Failure to tighten locknut or engage lockwasher tang could result in early bearing failure and cause damage to pump.

Remove length of hardwood or brass from port opening.

11. Adjust pump end clearance as in Thrust Bearing

Adjustment page 10.

12. Lubricate all grease fittings with multi-purpose grease,

NLGI #2.

DANGER !

Before starting pump, be sure all drive equipment guards are in place.

failure to properly mount guards may result in serious injury or death.

REPAIR: MODELS H, HL, K, KK, L, LQ AND LL

BEHIND THE ROTOR COMPONENT MECHANICAL SEAL PUMPS

4

5

6

ITEM

1

2

3

Locknut

Lockwasher

End Cap

Lip Seal

Bearing Spacer Collar (Outer)

Ball Bearing

NAME Of PART

7

8

Bearing Spacer Collar (Inner)

Ring, Half Round (Not H, HL)

9 Bearing Housing

10 Capscrew for Bracket

SECTION TSM 630 ISSUE F

ITEM NAME Of PART

11 Lip Seal

12 Grease Fitting

13 Bracket and Bushing Assembly

14 Bracket Bushing

15 Mechanical Seal

16 Bracket Gasket

17 Pipe Plug

18 Casing (Tapped or Flanged)

19 Rotor and Shaft

20 Idler and Bushing Assembly

fIGURE 9 - EXPLODED VIEW SERIES 4124B MODELS

PAGE 8 OF 12

ITEM

21 Idler Bushing

22 Head Gasket

23 Idler Pin

NAME Of PART

24 Head and Idler Pin Assembly

25 Capscrew for Head

26 Relief Valve Gasket

27 Internal Relief Valve

28 Capscrew for Relief Valve

DISASSEMBLY

BALL BEARING BEARING HOUSING

DANGER !

Before opening any Viking pump liquid chamber (pumping chamber, reservoir, relief valve adjusting cap fitting, etc.)

Be sure:

1. That any pressure in the chamber has been completely vented through the suction or discharge lines or other appropriate openings or connections.

2. That the driving means (motor, turbine, engine, etc.) has been “locked out” or made non-operational so that it cannot be started while work is being done on pump.

3. That you know what liquid the pump has been handling and the precautions necessary to safely handle the liquid. Obtain a material safety data sheet (MSDS) for the liquid to be sure these precautions are understood.

failure to follow above listed precautionary measures may result in serious injury or death.

1. Mark head and casing before disassembly to insure proper reassembly. The idler pin, which is offset in pump head, must be positioned toward and equal distance between port connections to allow for proper flow of liquid through the pump.

Remove head from pump. Do not allow idler to fall from idler pin. Tilt top of head back when removing to prevent this. Avoid damaging head gasket. If pump is furnished with pressure relief valve, it need not be removed from head or disassembled at this point. Refer to Pressure

Relief Valve Instructions, page 11.

If pump has jacketed head plate, it will separate from head when it is removed. The gasket between head and jacket head plate must be totally removed. Use new gasket when assembling pump.

2. Remove idler and bushing assembly.

3. Insert length of hardwood or brass through port opening between rotor teeth to keep shaft from turning. Bend up tang of lockwasher and with a spanner wrench, remove locknut and lockwasher from shaft.

4. Loosen two setscrews in the face of the bearing housing and remove the bearing housing assembly from the bracket. Refer to figure 10.

5. Remove pair of half round rings under the inner spacer collar from the shaft. There are no half round rings on the “H” and “HL” size pumps.

6. Carefully remove rotor and shaft to avoid damaging bracket bushing.

HALf ROUND

RINGS fIGURE 10

7. Loosen two radial setscrews in flange of bearing housing and with a spanner wrench remove the outer end cap with closure and outer bearing spacer collar.

8. Remove the double row ball bearing, closure and inner bearing spacer collar from the bearing housing.

9. Remove the rotary member of the mechanical seal from the rotor shaft. Remove the seal seat from the bracket.

10. Clean all parts thoroughly and examine for wear and damage. Check lip seals, ball bearing, bushings, and idler pin and replace if necessary. Check all other parts for nicks, burrs, excessive wear and replace if necessary.

Wash bearings in clean solvent. Blow out bearings with compressed air. Do not allow bearings to spin; turn them slowly by hand. Spinning bearings will damage race and balls. Make sure bearings are clean, then lubricate with light oil and check for roughness. Roughness can be determined by turning outer race by hand.

11. Casing can be checked for wear or damage while mounted on bracket.

ASSEMBLY

SETSCREW

SPACER COLLAR

SHAfT

LIPSEAL

END CAP

SETSCREW

1. Install bracket bushing. If bracket bushing has a lubrication groove, install bushing with groove at 6.00 o’clock position in bracket. If carbon graphite, Refer to

Installation of Carbon Graphite Bushings, page 11.

Make sure slots in the face of the bushing are towards rotor end of the bracket.

2. Clean rotor shaft and seal housing bore. Make sure they are free of dirt, grit and scratches. Gently radius leading edge of shaft diameter over which seal is to be placed.

Never touch mechanical seal faces with anything except clean hands or clean cloth. Minute particles can scratch the seal faces and cause leakage.

SECTION TSM 630 ISSUE F PAGE 9 OF 12

3. Place tapered installation sleeve on the shaft. Coat tapered sleeve and inside of the rotary member with a generous quantity of light oil. Grease is not recommended. Start rotary member on shaft and over tapered sleeve. Refer to figure 11.

TAPERED INSTALLATION SLEEVE end cap into the bearing housing until tight against the bearing. Lock in place with two set screws in the flange of the bearing housing.

14. Put lockwasher and locknut on shaft. Insert length of hardwood or brass through port opening between rotor teeth to keep shaft from turning. Tighten locknut to 50-

70 ft.– lbs. Torque (H, HL) or 100-130 ft. – lbs. Torque

(K, KK, L, LQ, LL) . Bend one tang of lockwasher into slot of locknut. If tang does not line up with slot, tighten locknut until it does. Failure to tighten locknut or engage lockwasher tang could result in early bearing failure and cause damage to pump.

Remove length of hardwood or brass from port opening.

MECHANICAL SEAL

ROTARY MEMBER

SHAfT

fIGURE 11

4. Move rotary member all the way on the rotor shaft until it is against the rotor hub. If the seal uses setscrews to secure the seal to the shaft, tighten the setsecrews once the seal is in place. Some PTFE seals are equipped with holding clips which compress the seal springs. Remove holding clips to release springs after seal is installed on shaft.

5. Lubricate outer diameter of seal seat gasket with oil.

Press seal seat into bore until back, unlapped face bottoms in bore. Make sure the seat anti-rotation pins are aligned with slots in the bracket bushing.

6. Coat rotor shaft and face of mechanical seal with light oil. Start end of shaft in bracket bushing turning from right to left, slowly pushing rotor in casing.

7. Coat idler pin with light oil and place idler and bushing on idler pin in head. If replacing with carbon graphite bushing, Refer to installation of Carbon Graphite

Bushings, page 11.

8. Using a .010 to .015 inch head gasket, install head and idler assembly on pump. Pump head and casing were marked before disassembly to insure proper reassembly.

If not, be sure idler pin, which is offset in pump head, is positioned toward the equal distance between port connections to allow for proper flow of liquid through pump. If pump is equipped with jacketed headplate, install at this time along with new gasket.

9. Tighten head capscrews evenly.

10. Slide inner spacer collar over shaft with recessed end facing rotor. H and HL size bearing spacer collars are not recessed.

Place pair of half round rings on shaft and slide inner bearing spacer collar over half round rings to lock them in place. There is no pair of half round rings on the H and HL size pumps.

11. Install the lip seal (lip toward end of shaft) in the bearing housing and turn the bearing housing into the bracket.

12. Pack the ball bearing with grease, place on the shaft and push or drive into place in housing.

13. Install the lipseal (with lip toward end of shaft) and bearing spacer collar in the outer end cap and turn the

THRUST BEARING ADJUSTMENT

SIZE H, HL, K, KK, L, LQ, LL PUMPS

1. Loosen the two set screws in the outer face of the bearing housing and turn this thrust bearing assembly clockwise until it can no longer be turned by hand. Back off counter-clockwise until the rotor shaft can be turned by hand with a slight noticeable drag.

2. For standard end clearance, back off the thrust bearing assembly the required length measured on the outside diameter of the bearing housing. See Table 1.

3. Tighten the two self-locking type “Allen” set screws, in the outboard face of the bearing housing, with equal force against the bracket. Your pump is now set with standard end clearances and locked.

NOTE: Be sure the shaft can rotate freely. If not, back off additional length on outside diameter and check again.

PUMP

SIZE

MODEL

STANDARD

END

CLEARANCE

(Inch)

TURN BRG.

HOUSING

C.C.W.

LENGTH

ON O.D.

(Inch)

H

HL

K,KK

L,LQ

LL

124A

4124A

4124B

126A

4126A

123A

4123A

127A

4127A

124A

4124A

124AE

4124AE

4124B

126A

4126A

123A

4123A

127A

4127A

0.003

0.005

0.005

0.008

TABLE 1

.75

1.125

1.25

2

ADDITIONAL

LENGTH ON

O.D. BRG.

HOUSING fOR

.001” END CL.

(Inch)

.22

.25

SECTION TSM 630 ISSUE F PAGE 10 OF 12

4. High viscosity liquids required additional end clearances.

The amount of extra end clearance depends on the viscosity of the liquid pumped. For specific recommendations, consult the factory. Each additional

¼” turn on the outside diameter of the bearing housing is equivalent to an extra end clearance of .001”.

INSTALLATION Of CARBON

GRAPHITE BUSHINGS

When installing carbon graphite bushings, extreme care must be taken to prevent breaking. Carbon graphite is a brittle material and easily cracked. If cracked, the bushing will quickly disintegrate. Using a lubricant and adding a chamfer on the bushing and the mating part will help in installation.

The additional precautions listed below must be followed for proper installation.

1. A press must be used for installation.

2. Be certain bushing is started straight.

3. Do not stop pressing operation until bushing is in proper position. Starting and stopping will result in a cracked bushing.

4. Check bushing for cracks after installation.

Carbon graphite bushings with extra interference fits are frequently furnished for high temperature operation. These bushings must be installed by a shrink fit.

1. Heat bracket for idler to 750ºF.

2. Install cool bushing with a press.

3. If facilities are not available to reach 750ºF. temperature, it is possible to install with 450ºF. temperature; however the lower the temperature the greater the possibility of cracking the bushing.

Consult factory with specific questions on high temperature applications. Refer to Engineering Service Bulletin ESB-3.

VALVE - LIST Of PARTS

1. Valve Cap 6. Valve Body

2. Adjusting Screw

3. Lock Nut

7. Valve Spring

8. Poppet

4. Spring Guide

5. Bonnet

9. Cap Gasket

10. Bonnet Gasket

fIGURE 13

SIZES K, KK, L, LQ AND LL

DISASSEMBLY

PRESSURE RELIEf VALVE

INSTRUCTIONS

VALVE - LIST Of PARTS

1. Valve Cap

2. Adjusting Screw

6. Valve Body

7. Valve Spring

3. Lock Nut

4. Spring Guide

5. Bonnet

8. Poppet

9. Cap Gasket

DANGER !

Before opening any Viking pump liquid chamber (pumping chamber, reservoir, relief valve adjusting cap fitting, etc.)

Be sure:

1. That any pressure in the chamber has been completely vented through the suction or discharge lines or other appropriate openings or connections.

2. That the driving means (motor, turbine, engine, etc.) has been “locked out” or made non-operational so that it cannot be started while work is being done on pump.

3. That you know what liquid the pump has been handling and the precautions necessary to safely handle the liquid. Obtain a material safety data sheet (MSDS) for the liquid to be sure these precautions are understood.

failure to follow above listed precautionary measures may result in serious injury or death.

SECTION TSM 630 ISSUE F PAGE 11 OF 12

fIGURE 12

SIZES H AND HL

TECHNICAL SERVICE MANUAL

UNIVERSAL SEAL HEAVY DUTY PUMPS

SERIES 124A, 4124A, 124AE, 4124AE, AND 4124B CAST IRON

SERIES 126A AND 4126A DUCTILE IRON

SERIES 123A AND 4123A STEEL

SERIES 127A AND 4127A STAINLESS STEEL

SIZES H, HL, K, KK, L, LQ, LL

SECTION TSM 630

PAGE

ISSUE

12 Of 12

f

Mark valve and head before disassembly to insure proper reassembly.

1. Remove valve cap.

2. Measure and record length of extension of adjusting screw. Refer to “A” on figure 12 and figure 13.

3. Loosen locknut and back out adjusting screw until spring pressure is released.

4. Remove bonnet, spring guide, spring and poppet from valve body. Clean and inspect all parts for wear or damage and replace if necessary.

ASSEMBLY

Reverse procedures outlined under Disassembly. If valve is removed for repairs be sure to replace in same position.

Relief valve adjusting screw cap must always point towards suction side of pump. If pump rotation is reversed, remove relief valve and turn end for end.

PRESSURE ADJUSTMENT

If a new spring is installed or if pressure setting of pressure relief valve is to be changed from that which the factory has set, the following instructions must be carefully followed.

1. Carefully remove valve cap which covers adjusting screw.

Loosen locknut which locks adjusting screw so pressure setting will not change during operation of pump.

2. Install a pressure gauge in discharge line for actual adjusting operation.

3. Turn adjusting screw in to increase pressure and out to decrease pressure.

4. With discharge line closed at point beyond pressure gauge, gauge will show maximum pressure valve will allow while pump is in operation.

IMPORTANT

In ordering parts for pressure relief valve, always give model number and serial number of pump as it appears on nameplate and name of part wanted. When ordering springs, be sure to give pressure setting desired.

WARRANTY

Viking warrants all products manufactured by it to be free from defects in workmanship or material for a period of one (1) year from date of startup, provided that in no event shall this warranty extend more than eighteen (18) months from the date of shipment from

Viking. The warranty period for Universal Seal series pumps ONLY, shipped after July 1, 2001 (Universal

Seal models listed below) is three (3) years from date of startup, provided that in no event shall this warranty extend more than forty-two (42) months from the date of shipment from Viking.

If, during said warranty period, any products sold by

Viking prove to be defective in workmanship or material under normal use and service, and if such products are returned to Viking’s factory at Cedar Falls, Iowa, transportation charges prepaid, and if the products are found by Viking to be defective in workmanship or material, they will be replaced or repaired free of charge, FOB. Cedar Falls, Iowa.

Viking assumes no liability for consequential damages of any kind and the purchaser by acceptance of delivery assumes all liability for the consequences of the use or misuse of Viking products by the purchaser, his employees or others. Viking will assume no field expense for service or parts unless authorized by it in advance.

Equipment and accessories purchased by Viking from outside sources which are incorporated into any

Viking product are warranted only to the extent of and by the original manufacturer’s warranty or guarantee, if any.

THIS IS VIKING’S SOLE WARRANTY AND IS IN

LIEU OF ALL OTHER WARRANTIES, EXPRESSED

OR IMPLIED, WHICH ARE HEREBY EXCLUDED,

INCLUDING IN PARTICULAR ALL WARRANTIES

OF MERCHANTABILITY OR FITNESS FOR A

PARTICULAR PURPOSE. No officer or employee of

IDEX Corporation or Viking Pump, Inc. is authorized to alter this warranty.

Universal Seal Pump Models: Sizes H, HL , K, KK,

L, LQ, LL, LS, Q, QS, N and R in Series 124A, 4124A,

4124AE, 4124B, 224A, 4224A, 4224AE, 4224B, 324A,

4324A, 126A, 4126A, 226A, 4226A, 123A, 4123A,

223A, 4223A, 323A, 4323A, 127A, 4127A, 227A,

4227A, 327A and 4327A.

VIKING PUMP, INC.

A Unit of IDEX Corporation

Cedar Falls, IA 50613 USA

© 12/2007 Viking Pump Inc.

All rights reserved

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