Manual

ManualsBrandsViking Pump ManualsPumpsTSM142.2: LS-M 225/4225

VIKING PUMP, INC. • A Unit of IDEX Corporation • Cedar Falls, IA 50613 USA

TECHNICAL SERVICE MANUAL

SECTION TSM 142.2

PAGE 1 Of 14

ISSUE E

CONTENTS

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 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 and serial number are on the nameplate.

In the Viking model number system, basic size letters are

combined with the series number (225 and 4225) and used to

indicate either an unmounted pump or mounted pump unit.

Introduction . . . . . . . . . . . . . . . . . . . . . . . 1

Safety Information. . . . . . . . . . . . . . . . . . . . 2

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

Maintenance . . . . . . . . . . . . . . . . . . . . . . 4

Packed Pumps . . . . . . . . . . . . . . . . . . . . . 5

Disassembly . . . . . . . . . . . . . . . . . . . . . 6

Assembly . . . . . . . . . . . . . . . . . . . . . . . 7

Mechanical Seal Pumps . . . . . . . . . . . . . . . . 8

Disassembly . . . . . . . . . . . . . . . . . . . . . 9

Assembly . . . . . . . . . . . . . . . . . . . . . . .10

Thrust Bearing Adjustment . . . . . . . . . . . . . . .12

Installation of Carbon Graphite Bushings . . . . . . . .12

Pressure Relief Valve Instructions . . . . . . . . . . 13

UNMOUNTED PUMP UNITS

PACKED MECH. SEAL

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

LS225 LS4225

Q225 Q4225

QS225 QS4225

M225 M4225

This manual deals only with Series 225 and 4225 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 Catalog Section 142, Series 225 and 4225 Heavy

Duty Bracket Mounted Pumps.

SIZE LS - FIGURE 1

(Shown with Jacketed Head Plate)

SIZES Q, QS AND M - FIGURE 2

(Shown with Jacketed Relief Valve Type Head)

Electronic copies of the most current TSM issue can be found on the Viking Pump website at www.vikingpump.com

HEAVY-DUTY BRACKET MOUNTED PUMPS

SERIES 225 AND 4225

SIZES LS, Q, QS, M

Summary of content (14 pages)

PAGE 1
Electronic copies of the most current TSM issue can be found on the Viking Pump website at www.vikingpump.com TECHNICAL SERVICE MANUAL HEAVY-DUTY BRACKET MOUNTED PUMPS SERIES 225 AND 4225 SIZES LS, Q, QS, M SECTION TSM 142.2 PAGE 1 of 14 ISSUE E CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . .1 Safety Information . . . . . . . . . . . . . . . . . . . . 2 Special Information . . . . . . . . . . . . . . . . . . . .
PAGE 2
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.
PAGE 3
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.
PAGE 4
MAINTENANCE SUGGESTED REPAIR TOOLS: The following tools must be available to properly repair Series 225 and 4225 pumps. These tools are in addition to standard mechanics’ tools such as open end wrenches, pliers, screwdrivers, etc. Most of the items can be obtained from an industrial supply house. 6. Spanner wrench, adjustable pin type for use on double end caps (Source: #482 J. H. Williams & Co. or equal) 7. Brass bar 8. Arbor press 1. Soft Headed hammer 2.
PAGE 5
PART 1 - PACKED PUMPS EXPLODED VIEW for MODEl ls225 ITEM NAME OF PART ITEM NAME OF PART ITEM NAME OF PART 1 Locknut 14 Packing Retainer Washer 27 Idler Bushing 2 Lockwasher 15 Bracket Bushing 28 Head Gasket 3 End Cap (Outer) 16 Grease Fitting 29 Idler Pin 4 Lip Seal for End Cap 17 Bracket and Bushing Assembly 30 Head and Idler Pin Assembly 5 Bearing Spacer Collar (Outer) 18 Capscrew for Bracket 31 Gasket for Jacket Head Plate 6 Ball Bearing 19 Bracket Gasket 32 Jack
PAGE 6
DISASSEMBLY DANGER ! 1. Before opening any Viking pump liquid chamber (pumping chamber, reservoir, relief valve adjusting cap fitting, etc.) Be sure: CAUTION: DO NOT ALLOW THE IDLER TO FALL FROM THE IDLER PIN. Tilting the top of the head back as it is removed will prevent this occurrence. Avoid damaging the head gasket if possible. If pump is furnished with a relief valve, it need not be removed from head or disassembled at this point. Refer to “Pressure Relief Valve Instructions”, page 13.
PAGE 7
5. Tap the shaft forward approximately ½ inch and check for a pair of half circle, round wire rings under the inner bearing spacer collar. See Figure 4. NOTE: These must be removed before rotor and shaft can be removed from the pump. (These rings are not used in Q, QS and M size pumps.) 6. Carefully remove rotor and shaft to avoid damage to the bracket bushing. 7. Remove the packing gland from side of bracket. 8. Loosen the four setscrews over the inner and outer end caps.
PAGE 8
PART 2 - MECHANICAL SEAL PUMPS EXPLODED VIEW for MODEl ls4225 ITEM NAME OF PART ITEM NAME OF PART ITEM NAME OF PART 1 Locknut 14 Mechanical Seal 27 Idler and Bushing Assembly 2 Lockwasher 15 Grease Fitting 28 Idler Bushing 3 End Cap (Outer) 16 Pipe Plug 29 Head Gasket 4 Lip Seal for End Cap 17 Bracket and Bushing Assembly 30 Idler Pin 5 Bearing Spacer Collar (Outer) 18 Capscrew for Bracket 31 Head and Idler Pin Assembly 6 Ball Bearing 19 Bracket Bushing 32 Gasket fo
PAGE 9
DISASSEMBLY DANGER ! Before opening any Viking pump liquid chamber (pumping chamber, reservoir, relief valve adjusting cap fitting, etc.) Be sure: grease fitting nylon inseRt inner end cap half round rings inner spacer collar 1. That any pressure in the chamber has been completely vented through the suction or discharge lines or other appropriate openings or connections. 4. Remove the idler and bushing assembly. 3.
PAGE 10
8. Loosen the four setscrews over the outer and inner end caps. Remove both end caps, ball bearing and bearing spacer collars. See Figure 5, page 9. NOTE: The inner end cap can be removed through the side openings in the bracket. 9. Clean all parts thoroughly and examine for wear or damage. Check lip seals, ball bearing, bushings, and mechanical seal and replace as necessary. Check all other parts for nicks, burrs, excessive wear and replace if necessary.
PAGE 11
seal access hole (for setscrews) spring adapter mechanical seal (Rotary member) seal seat gasket seal holder right side of pump seal holder plate set collar 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 120150 ft.– lbs. Torque (LS) or 170-190 ft. – lbs. Torque (Q, QS, M). Bend one tang of lockwasher into slot of locknut. If tang does not line up with slot, tighten locknut until it does.
PAGE 12
THRUST BEARING ADJUSTMENT See Figure 10, page 11. 1. Loosen the two setscrews over each of the outer and inner end caps. 2. Turn the inner end cap clockwise (viewed from shaft end) until it projects slightly into the opening on the side of the bracket exposing approx. three threads. 3. Turn the outer end cap clockwise until the rotor is tight against the head and the rotor shaft cannot be turned. 4. Make a reference mark on the bracket end, opposite a notch on the outer end cap.
PAGE 13
SAFETY RELIEF VALVE INSTRUCTIONS DISASSEMBLY DANGER ! Before opening any Viking pump liquid chamber (pumping chamber, reservoir, relief valve adjusting cap fitting, etc.) Be sure: FIGURE 12 VALVE - LS, Q, QS and M SIZES 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.
PAGE 14
TECHNICAL SERVICE MANUAL HEAVY-DUTY BRACKET MOUNTED PUMPS SERIES 225 AND 4225 SIZES LS, Q, QS, M SECTION TSM 142.2 PAGE 14 of 14 ISSUE E ASSEMBLY Reverse the procedure outlined under disassembly. If valve is removed for repairs, be sure to replace in same position. The valve cap should point towards the suction port. 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.