Viking Pump TSM151.1: H-LL 123/4123 Service Manual

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Viking Pump TSM151.1: H-LL 123/4123 Service Manual | Manualzz

TECHNICAL SERVICE MANUAL

HEAVY DUTY STEEL EXTERNAL BRACKET MOUNTED PUMPS

SERIES 123 AND 4123

SIZES H-LL

PAGE

ISSUE

1 OF 13

C

CONTENTS

Introduction

Special Information

Maintenance

Packed Pumps

Mechanical Seal Pumps

Standard Rubber Bellows Type

(Sizes H, HL, K, KK, LQ & LL)

Optional Teflon Seal

Thrust Bearing Adjustment

Installation of Carbon Graphite Bushings

Pressure Relief Valve Instructions

INTRODUCTION

The illustrations in this manual are for identification purposes

8

12

13

13

14

1

2

3

4

FIGURE 1

SIZES H AND HL

only and cannot be used for ordering parts. Obtain a parts list from the factory or a Viking Representative. Always give complete name of part, part number and material with model number and serial number of pump when ordering repair parts. The unmounted pump or pump unit model number

OBSOLETED

and serial number are on the nameplate.

In the Viking model number system, basic size letters are combined with series number (123 and 4123) indicating both unmounted or mounted pump unit.

PRODUCT

H123 H4123

1Q16

un-mounted pump model numbers followed by a

FIGURE 2

SIZES K AND KK

HL123 HL4123 letter(s) indicating drive style.

V = V-Belt

K123

KK123

K4123

KK4123

D = Direct Connected

R = Viking Speed Reducer

LQ123

LL123

LQ4123

LL4123

P = Commercial Speed

Reducer

This manual deals only with Series 123 and 4123 heavyduty Steel External Bracket Mounted Pumps. Refer to

Figures 1 through 16 for general configuration and nomenclature used in this manual. Pump specifications and recommendations are listed in Catalog Section 151, Series

123 and 4123 Heavy-Duty Steel External Bracket Mounted

Pumps.

FIGURE 3

SIZES LQ AND LL

VIKING PUMP INC. •

A Unit of IDEX Corporation •

SPECIAL INFORMATION

For additional information on pressure relief valves, refer to

Technical Service Manual TSM000 and Engineering Service

DANGER

BEFORE OPENING ANY VIKING PUMP LIQUID

CHAMBER (PUMPING CHAMBER, RESERVOIR,

RELIEF VALVE ADJUSTING CAP FITTING ETC.)

BE SURE:

1. THAT ANY PRESSURE IN CHAMBER HAS

BEEN COMPLETELY VENTED THROUGH

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.

Bulletin ESB-31.

SPECIAL MECHANICAL SEALS: Extra care should be taken in repair of pumps with mechanical seals. Read and follow all special information supplied with pump.

MAINTENANCE

Series 123 and 4123 pumps are designed for long, troublefree 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 handgun 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 Bulleting 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, page 4, and

Assembly, page 5, regarding repacking pump.

OBSOLETED

STORAGE: If pump is to be stored, or not used for six months

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

PRODUCT

1. Viking pumps are positive placement pumps and must be or more, pump must be drained and a light coat of non-

1Q16

SUGGESTED REPAIR TOOLS: The following tools must be available to properly repair Series 123 and 4123 pumps.

These tools are in addition to standard mechanics’ tools such provided with some sort of pressure protection. This may as open end wrenches, pliers, screwdrivers etc. Most of the 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 items can be obtained from an industrial supply house.

1. Soft Headed Hammer

2. Allen Wrenches (some mechanical seals and set models designed to accept a relief valve. Options may collars)

3. Packing hooks, flexible (packed pumps) 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 to be reversed during operation,

Large for 0.375 inch and up cross section packing

4. Mechanical seal installation sleeve pressure protection must be provided on both sides of

2-751-005-630 for 2.4375 inch Q-M4123

5. Bearing locknut spanner wrench pump.

4. Relief valve adjusting screw cap must always point

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

6. Spanner wrench, adjustable pin type for use on double towards suction side of pump. If pump rotation is reversed, remove pressure relief valve and turn end for end. Refer to Figures 1 and 2.

5. Pressure relief valves cannot be used to control pump flow or regulate discharge pressure. end caps (Source #482 J.H. Williams & Co or equal)

7. Brass Bar

8. Arbor Press

ISSUE C PAGE 2 OF 13 SECTION TSM 151.1

PACKED PUMPS

LIP SEAL

INNER END CAP

PACKING RETAINER

WASHER

BALL BEARING

LIP SEAL

OUTER END CAP

SHAFT

PACKING

GLANDS

PACKING

RINGS

BRACKET

BUSHING

ROTOR

IDLER

HEAD

VALVE GASKET

IDLER PIN

VALVE BODY

POPPET

VALVE

SPRING

LOCKNUT

SPRING

GUIDE

OUTER

END CAP

BONNET

SETSCREW

LOCKNUT

INNER

END CAP

BRACKET

BRACKET

GASKET

ADJUSTING

SCREW

HEAD

GASKET

CASING

FIGURE 4

CUTAWAY VIEW OF HL123 WITH CALLOUTS

VALVE CAP

OBSOLETED

EXPLODED VIEW FOR MODELS H123, HL123, K123

KK123, LQ123 AND LL123 (MODEL KK123 SHOWN)

1Q16

ITEM

1

Locknut

NAME OF PART

2

Lockwasher

3

End Cap, (outer)

4

Lip Seal for End Cap

5

Bearing Spacer Collar (outer)

6

Ball Bearing

7

Bearing Spacer Collar (inner)

8

Ring, Half Round (not H,HL)

9

End Cap, (inner)

10 Packing Gland

11 Packing Gland Nut

12 Packing Gland Capscrew

ITEM

13 Packing

NAME OF PART

14 Packing Retainer Washer

15 Bracket Bushing

16 Grease Fitting

17 Bracket and Bushing

18 Capscrew for Bracket

19 Bracket Gasket

20 Casing

21 Nut for Flanges

22 Capscrew for Flanges

23 Pipe Flange Gasket

24 Pipe Plug

ITEM NAME OF PART

25 Rotor and Shaft

26 Idler and Bushing

27 Idler Bushing

28 Head Gasket

29 Idler Pin

30 Head and Idler Pin

31 Gasket for Jacketed Head Plate

32 Jacketed Head Plate

33 Capscrew for Head

34 Relief Valve Gasket

35 Cascrew for Valve

36 Internal Relief Valve

SECTION TSM 151.1

ISSUE C PAGE 3 OF 13

DISASSEMBLY

NYLON INSERT

INNER END CAP

HALF ROUND

RINGS

INNER SPACER

COLLAR

GREASE FITTING LOCATION

SETSCREWS

OUTER END CAP

LOCKWASHER

LOCKNUT

INNER LIP

SEAL

BALL BEARING

OUTER SPACER

COLLAR

OUTER LIP SEAL

BRACKET

BE SURE:

CONNECTIONS.

DANGER

BEFORE OPENING ANY VIKING PUMP LIQUID

CHAMBER (PUMPING CHAMBER, RESERVOIR,

RELIEF VALVE ADJUSTING CAP FITTING ETC.)

APPROPRIATE OPENINGS OR

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 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 12.

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.

Remove length of hardwood or brass from port opening

4. Remove packing gland nuts.

5. Tap shaft forward approximately 0.50 inch and remove pair of half round rings under inner bearing spacer collar.

There is no half round rings on H and HL size pumps.

SECTION TSM 151.1

ISSUE C PAGE 4 OF 13

DISASSEMBLY

6. Carefully remove rotor and shaft to avoid damaging

If pump is equipped with jacketed head plate, install at this bracket bushing.

7. Remove packing gland from side of bracket.

8. Loosen setscrews. Two on H and HL size pumps, four on time along with new gasket.

Tighten head capscrews evenly.

If pump was equipped with a relief valve and it was removed during disassembly, install on head with new all other sizes. With a spanner wrench, remove both end gaskets. Relief valve adjusting screw cap must always caps with lip seals. Remove ball bearing. Refer to Figure

5.

9. Remove packing and packing retainer washer.

10. Clean all parts thoroughly and examine for wear and point toward suction port. Refer to Figures 1, 2 and 3 on page 1. For relief valve repair or adjustments, Refer to

Pressure Relief Valve Instructions, page 12.

7. Slide inner spacer collar over shaft with recessed end facing rotor. H and HL size bearing spacer collars are not damage. Check lip seals, ball bearing, bushings and idler recessed. pin and replace if necessary. Check all other parts for nicks, burrs, excessive wear and replace if necessary.

Place pair of half round rings on shaft and slide inner bearing spacer collar over half round rings to lock them in

Wash bearings in clean solvent. Blow out bearings with place. There is no pair of half round rings on H and HL compressed air. Do not allow bearings to spin; turn them slowly by hand. Spinning bearings will damage race and size pumps. Refer to Figure 5, page 4.

8. Press lip seal, lip facing end of shaft, in inner end cap and balls. Make sure bearings are clean, then lubricate with insert end cap through shaft end of bracket. Turn end cap non-detergent SAE 30-weight oil and check for roughness. Roughness can be determined by turning outer race by hand.

If bearings have roughness, bearings will need to be replaced.

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

ASSEMBLY

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 non-detergent SAE

30 weight oil. Start end of shaft in bracket bushing turning 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. A length of pipe will help to seat each packing ring.

4. Install packing gland, capscrews and nuts Back rotor and shaft out of casing just far enough to insert packing gland through side opening of bracket over end of shaft. Make sure gland is installed square and nuts are tightened evenly. Tighten nuts wrench tight then back off until gland is slightly loose.

5. Coat idler pin with non-detergent SAE 30 weight oil and clockwise, looking at shaft end, until it engages threads.

End cap spanner wrench holes must be facing rotor. Turn end cap with spanner wrench until it projects slightly from opening on side of bracket. End cap must not be turned so far that lop seal drops off end of spacer collar on shaft or end cap becomes disengaged from threads. Refer to

Figure 5, page 4.

OBSOLETED

Place on shaft and push or gently drive in place in bracket.

10. Press lip seal, lip facing end of shaft, in outer end cap and insert end cap in bracket. Turn end cap in bracket until it teeth to keep shaft from turning. Tighten locknut to 50-70 ft.– lbs. Torque (H, HL) or 100-130 ft. – lbs. Torque (K, KK,

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.

12. Adjust pump end clearance. Refer to Thrust Bearing

Adjustment, page 11,

13. Lubricate all grease fittings with multi-purpose grease NLGI

#2. place idler and bushing on idler pin in head. If replacing carbon graphite bushing, Refer to Installation Of

Carbon Graphite Bushings, page 11.

6. 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 and equal distance between port connections to connections to allow for proper flow of liquid through pump.

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.

ISSUE C PAGE 5 OF 13 SECTION TSM 151.1

MECHANICAL SEAL PUMPS

LIP SEAL

BALL BEARING

LIP SEAL

OUTER END CAP

LIP SEAL

INNER END CAP

MECHANICAL

SEAL

BRACKET

BUSHING

CASING

LOCKWASHER

SHAFT

LOCKNUT

OUTER

END CAP

SETSCREW

INNER END CAP

BRACKET

GREASE

FITTING

BRACKET

GASKET

HEAD

GASKET

VALVE

GASKET

ADJUSTING

SCREW

ROTOR

IDLER

HEAD

IDLER PIN

VALVE

BODY

POPPET

VALVE

SPRING

BONNET

GASKET

SPRING

GUIDE

BONNET

CAP GASKET

LOCKNUT

FIGURE 6

CUTAWAY VIEW OF KK 4123 WITH CALLOUTS

EXPLODED VIEW FOR MODELS H4123, KL4123, K4123, KK4123, LQ4123 AND LL4123 - (MODEL KK4123 SHOWN)

PRODUCT

ITEM

1 Locknut

NAME OF PART

2 Lockwasher

3 End Cap, (outer)

4 Lip Seal for End Cap

5 Bearing Spacer Collar (outer)

6 Ball Bearing

7 Bearing Spacer Collar (inner)

8 Ring, Half Round (not H,HL)

9 End Cap, (inner)

10 Lip Seal for Seal Chamber

11 Pressure Relief Plug

12 Grease Fitting

ITEM NAME OF PART

13 Bracket and Bushing

14 Capscrew for Bracket

15 Bracket Bushing

16 Mechanical Seal

17 Bracket Gasket

18 Casing

19 Pipe Plug

20 Nut for Flanges

21 Capscrew for Flanges

22 Pipe Flange Gasket

23 Rotor and Shaft

24 Idler and Bushing

ITEM NAME OF PART

25 Idler Bushing

26 Head Gasket

27 Idler Pin

28 Head and Idler Pin

29 Gasket for Jacketed Head Plate

30 Jacketed Head Plate

31 Capscrew for Head

32 Relief Valve Gasket

33 Capscrew for Valve

34 Internal Relief Valve

SECTION TSM 151.1

ISSUE C PAGE 6 OF 13

DISASSEMBLY

BEFORE OPENING ANY VIKING PUMP LIQUID

CHAMBER (PUMPING CHAMBER, RESERVOIR,

RELIEF VALVE ADJUSTING CAP FITTING ETC.)

BE SURE:

1. THAT ANY PRESSURE IN CHAMBER HAS

BEEN COMPLETELY VENTED THROUGH

SUCTION OR DISCHARGE LINES OR OTHER

APPROPRIATE OPENINGS OR

CONNECTIONS.

DANGER

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.

4. Tap shaft forward approximately 0.50 inch and remove pair of half round rings under inner spacer collar. There is no pair of half round rings on H and HL size pumps.

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

6. Remove rotary member of seal from shaft and stationary seal seat from bracket.

7. Loosen setscrews. Two for H and HL size pumps, four for all other sizes. With spanner wrench remove both end caps and lip seals. Remove ball bearing and spacer collars. Refer to Figure 5, page 4.

8. Examine seal chamber lip seal and remove if it shows wear or damage. Lip seal must be removed if bracket bushing needs to be replaced.

9. Clean all parts thoroughly and examine for wear or damage. Check lip seals, ball bearing, bushing 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 non-detergent SAE 30-weight oil and

OBSOLETED

particles that might damage bracket bushing. Scratches

1. Mark head and casing before disassembly to insure proper reassembly. The idler pin, which is offset in

PRODUCT

1Q16

distance between port connections to allow for proper

Remove head from pump. Do not allow idler to fall from on shaft in seal area will provide leakage paths under mechanical seal.

10. Casing can be checked for wear or damage while mounted on bracket. 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 12.

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.

Remove length of hardwood or brass from port opening.

SECTION TSM 151.1

ISSUE C PAGE 7 OF 13

ASSEMBLY

Standard Mechanical Seal

(Synthetic Rubber Bellows Type)

The seal used in this pump is simple to install and good performance will result if care is taken during installation.

The principle of the mechanical seal is contact between the rotary and stationary members. These parts are lapped to a high finish and their sealing effectiveness depends on complete contact.

Viking furnishes a number of heavy-duty pumps with special mechanical seals installed in the packing end of the pump.

These special seals are not discussed in TSM 151.1.

Information is available by contacting the factory. When requesting special seal information, be sure to give pump model number and serial number.

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. Install lip seal in bracket. Refer to Figure 7.

4. Clean rotor hub and bracket seal housing bore. Make sure both are free from dirt and grit. Coat outer diameter of seal seat and inner diameter of seal housing bore with non-detergent SAE 30-weight oil.

5. Start seal seat in seal housing bore, Refer to Figure 8.

If force is necessary, protect seal face with a clean cardboard disc and gently tap in place with a piece of wood.

COAT SEAL SEAT AND SEAL HOUSING BORE WITH NON-

DETERGENT SAE 30 WEIGHT OIL BEFORE ASSEMBLY.

BRACKET

BUSHING

LIP SEAL FOR

SEAL CHAMBER

LIP SEAL FOR SEAL CHAMBER

BRACKET

SEAL HOUSING

BORE

SEAL SEAT

TAPERED INSTALLATION

SLEEVE

BRACKET BUSHING

OBSOLETED

FIGURE 8

6. Place tapered installation sleeve on shaft, Refer to

Figure 9. Sleeve is furnished with H, HL, K, KK, LQ

1Q16

of non-detergent SAE 30 weight oil. Petrolatum may be used but grease is not recommended.

SPRING

FIGURE 7

Prior to installing rotating portion of mechanical seal, prepare and organize rotor shaft, head and idler assemblies and appropriate gaskets for quick assembly.

Once rotating portion of mechanical seal is installed on rotor shaft, it is necessary to assemble parts as quickly as possible to insure that seal does not stick to shaft in wrong axial position. The seal should be expected to stick to the shaft after several minutes setting time.

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

3. Coat idler pin with non-detergent SAE 30 weight oil and place idler and bushing on idler pin in head. If replacing a carbon graphite bushing, Refer to installation of

Carbon Graphite Bushings, page 11.

MECHANICAL SEAL ROTARY MEMBER

SHAFT

TAPERED INSTALLATION

SLEEVE

COAT ROTOR SHAFT, TAPERED INSTALLATION SLEEVE AND

INNER DIAMETER OF MECHANICAL SEAL WITH NON-

DETERGENT SAE 30 WEIGHT OIL BEFORE ASSEMBLY.

FIGURE 9

SECTION TSM 151.1

ISSUE C PAGE 8 OF 13

ROTOR HUB

SPRING

MECHANICAL SEAL ROTARY

MEMBER

FIGURE 10

SHAFT

12. Press lip seal, lip facing end of shaft, in inner end cap and insert end cap through shaft end of bracket. Turn end cap clockwise, looking at shaft end, until it engages threads. End cap spanner wrench tools must be facing rotor. Turn end cap with spanner wrench until it projects slightly from opening on side of bracket. End cap must not be turned so far that lip seal drops off end of spacer collar on shaft or end cap becomes disengaged from threads. Refer to Figure 5, page 4.

If this happens, remove inner spacer collar, half round rings and end cap and start over at Step 11.

13. Pack ball bearing with multi-purpose grease, NLGI #2.

Place on shaft and push or gently drive in place in bracket.

14. Press lip seal, lip facing end of shaft, in outer end cap and insert end cap in bracket. Turn end cap in bracket until it is tight against bearing. Refer to Figure 5, page

4.

15. 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-

7. Place seal spring on shaft against rotor hub. Refer to

Figure 10.

8. Slide rotary member, lapped contact surface facing

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

KK, LQ, LL) . 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 away from spring, over installation sleeve on shaft until it is against spring.

Do not compress spring.

9. Coat rotor shaft with non-detergent SAE 30 weight oil.

Start end of shaft in bracket bushing and turn from right to left, slowly pushing until the ends of the rotor teeth are just below the face of the casing. failure and cause damage to pump.

Remove length of hardwood or brass from port opening.

16. Adjust pump end clearance. Refer to Thrust Bearing

Adjustment, page 11.

17. Lubricate the grease fitting over the seal chamber with petroleum jelly, petrolatum (Vaseline) or other similar

Leave the rotor in this position. Withdrawal of rotor and shaft may displace the carbon seal rotating face and result in damage to the seal.

10. Using a .010 to .015 inch head gasket, install head and marked before disassembly to insure proper low melting point lubricant. Lubricate all other grease

1Q16

reassembly. If not, be sure idler pin, which is offset in pump head, is positioned toward and equal distance between port connections to allow for proper flow of liquid through pump.

If pump is equipped with jacketed head plate, install at this time along with new gasket.

Tighten head capscrews evenly.

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.

If pump was equipped with a relief valve and it was removed during disassembly, install on head with new gaskets. Relief valve adjusting screw cap must always point toward suction port. Refer to Figures 1, 2 and 3 on page 1. For relief valve repair or adjustments, Refer

to Pressure Relief Valve Instructions, page 12.

11. 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 to lock them in place.

There is not pair of half round rings on H and HL size pumps. Refer to Figure 5, page 4.

SECTION TSM 151.1

ISSUE C PAGE 9 OF 13

ASSEMBLY

Optional Mechanical Seal

(Teflon Fitted Type)

The seal type shown in Figures 11, 12 and 13 can be installed as an alternate to the standard mechanical seal

(synthetic rubber bellows type). These seals are setscrew driven and the stationary seats have anti-rotation pins, which mate with slots in the end of the bracket bushing.

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. Install lip seal in bracket.

3. Clean rotor hub and bracket seal housing bore. Refer

to Figure 11. Make sure both are free from dirt and grit. Coat outer diameter of seal seat gasket and inner diameter of seal housing bore with non-detergent SAE

30-weight oil.

ANTI-ROTATION PINS ALIGNED

WITH SLOTS IN BUSHING

INSTALLATION TOOL

6. Place tapered installation sleeve (furnished with H, HL,

K, KK, LQ and LL size replacement mechanical seals) on shaft. Refer to Figure 12. Coat inner diameter of seal rotary member, tapered installation sleeve and the shaft with a generous quantity on non-detergent SAE 30 weight oil. Place rotary member on shaft over sleeve and against hub of rotor. Refer to Figure 13.

TAPERED INSTALLATION SLEEVE

MECHANICAL SEAL

ROTARY MEMBER

FIGURE 12

SHAFT

MECHANICAL SEAL

ROTARY MEMBER

SHAFT

PRODUCT

COAT WITH LIGHT OIL

BEFORE ASSEMBLY

BRACKET SEAL HOUSING BORE WITH SEAL SEAT

INSTALLED. NOTE SPECIAL INSTALLATION TOOL USED FOR

FACTORY ASSEMBLY.

FIGURE 11

4. Start seal seat in seal housing bore. Make sure seat anti-rotation pins are aligned to engage slots in end of bracket bushing. Refer to Figure 11.

5. Using a cardboard disc to protect lapped face of seal seat, press seal seat assembly to bottom of seal housing bore using a piece of wood. An arbor press can also be used to install the seal seat. Seal seat must be started square and carefully pressed to bottom of seal housing bore.

K size pumps require a 0.25-inch spacer between seal and rotor hub to properly position seal on shaft.

.25 inch thick spacer collar used here on “K” size pump.

FIGURE 13

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

AT THIS POINT, FINISH ASSEMBLY PROCEDURES

STARTING AT STEP 9, PAGE 9 (STANDARD

MECHANICAL SEAL).

SECTION TSM 151.1

ISSUE C PAGE 10 OF 13

THRUST BEARING ADJUSTMENT

1. Loosen setscrews over outer and inner end caps.

Two for H and HL size pumps, four for all other sizes.

2. Turn inner end cap clockwise, viewed from shaft end, until it projects slightly from bracket exposing approximately three threads.

3. Turn outer end cap clockwise until rotor is tight against head and rotor shaft cannot be turned.

4. Make a reference mark on bracket end, opposite a notch on outer end cap. Back off outer end cap required number of notches. See Figure 14.

Each 0.25 travel on circumference of end cap is

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 equivalent to approximately .0115 inch for all sizes.

5. End clearances set per Step 4 are adequate for viscosity’s up to 750 SSU (SAE 20-lube oil at room bushing.

4. Check bushing for cracks after installation.

Carbon graphite bushings with extra interference fits are temperature). Higher viscosity liquids require frequently furnished for high temperature operation. These additional end clearances.

As a general guideline, for viscosity’s between 750 and 7500 SSU (heavier lube oils) double the amount of end clearance indicated in Step 4; for viscosity’s between 7500 and 75,000 SSU (e.g., resins) triple bushings must be installed by a shrink fit.

1. Heat bracket or idler to 750

º F.

2. Install cool bushings with a press.

3. If facilities are not available to reach 750º F. the amount an for viscosity’s greater than 75,000

SSU (e.g., black strap molasses) use 4 times the amount.

6. Tighten inner end cap with a spanner wrench. Tap spanner wrench lightly but DO NOT OVER greater the possibility of cracking bushing.

Consult factory with specific questions on high temperature

3. temperature, it is possible to install with 450º F. temperature; however, the lower the temperature, the

OBSOLETED

TIGHTEN, as it will damage the threads.

7. Tighten setscrews that hold inner and outer end caps to prevent their turning in bracket.

8. Rotor and shaft should turn smoothly by hand one

Adjustment Steps 1 through 8.

1Q16

Pump

Size

H – HL

K - LL

Turn Outer End Cap C.C.W.

No. of Notches*

3

3

Or Length on O.D., Inches

0.50

0.656

*Each small notch on outer end cap represents .001 inch end clearance

SECTION TSM 151.1

ISSUE C PAGE 11 OF 13

PRESSURE RELIEF VALVE

INSTRUCTIONS

FIGURE 15

SIZE H AND HL

DISASSEMBLY

DANGER

BEFORE OPENING ANY VIKING PUMP LIQUID

CHAMBER (PUMPING CHAMBER, RESERVOIR,

RELIEF VALVE ADJUSTING CAP FITTING ETC.)

BE SURE:

1. THAT ANY PRESSURE IN CHAMBER HAS

BEEN COMPLETELY VENTED THROUGH

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.

OBSOLETED

PRODUCT

1. Remove valve cap.

2. Measure and record length of extension of adjusting screw. Refer to “A” on Figures 15 and 16.

3. Loosen locknut and back out adjusting screw until

FIGURE 16

SIZE K, KK, LQ AND LL

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 as necessary.

LIST OF PARTS

1.

Valve Cap

2.

Adjusting Screw

3.

Lock Nut

4.

Spring Guide

5.

Bonnet

6.

Valve Body

7.

Valve Spring

8.

Poppet

9.

Cap Gasket

10.

Bonnet Gasket

SECTION TSM 151.1

ISSUE C PAGE 12 OF 13

TECHNICAL SERVICE MANUAL

HEAVY DUTY STEEL EXTERNAL BRACKET MOUNTED PUMPS

SERIES 123 AND 4123

SIZES H-LL

PAGE

ISSUE

13 OF 13

C

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

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. Refer to Figures 1, 2, and

3, page 1.

PRESSURE ADJUSTMENT

Loosen locknut, which locks adjusting screw so

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. 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

OBSOLETED

of delivery assumes all liability for the consequences of

If a new spring is installed or if pressure setting of pressure relief valve is to be changed from that which the carefully followed.

1. Carefully remove valve cap, which covers adjusting

1Q16

pressure setting will not change during operation of pump.

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

3. Turn adjusting screw in to increase pressure and out

WARRANTY

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

to decrease pressure.

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

PARTICULAR PURPOSE.

No officer or employee of

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

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.

VIKING PUMP INC.·

Copyright 2008·

VIKING PUMP INC.·

A Unit of IDEX Corporation

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