Xylem IMVIT R01 User Manual [en, es]

INSTRUCTION MANUAL

IMVITR01

MODEL VIT

VERTICAL INDUSTRIAL TURBINE PUMPS

INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS

Foreword

This manual provides instructions for the Installation, Operation, and Maintenance of the Goulds Water Technology Vertical Industrial Turbine Pumps. This manual covers a standard product. For special options, supplemental instructions are available. This manual must be read and understood before installation and

start-up.

This instruction manual covers several different pump models. Most assembly, disassembly, and inspection procedures are the same for all the pumps. However, where there are differences, these differences will be noted within the manual. The design, materials and workmanship incorporated in the construction of the Goulds Water Technology VIT Pumps makes them capable of giving long, trouble-free service. The life and satisfactory service of any mechanical unit, however, is enhanced and extended by correct application, proper installation, periodic inspection, condition monitoring and careful maintenance. This instruction manual was prepared to assist operators in understanding the construction and the correct methods of installing, operating, and maintaining these pumps.

The information contained in this book is intended to assist operating personnel by providing information on the characteristics of the purchased equipment. It does not relieve the user of their responsibility of using accepted safe engineering practices in the installation, operation and maintenance of this equipment.

Goulds Water Technology shall not be liable for physical injury, death, damage, or delays caused by a failure to observe the instructions for installation, operation and maintenance contained in this manual.

Warranty is valid only when genuine Goulds Water Technology parts are used.

Use of the equipment on a service other than stated in the order will nullify the warranty, unless written approval is obtained in advance from Goulds Water Technology.

For information or questions not covered in this manual, contact Goulds Water Technology at (806) 763-7867.

THIS MANUAL EXPLAINS :

• Proper Installation • Pump Overhaul

• Start-up Procedures • Trouble Shooting

• Operation Procedures • Ordering Spare or Repair Parts

• Routine Maintenance

Owner’s Information

Pump Model Number:

Pump Serial Number:

Motor Model Number:

Motor Serial Number:

Dealer:

Dealer Telephone:

Purchase Date:

Installation Date:

Table of Contents

SUBJECT PAGE

SECTION 1 – Safety ...................................................................................................................................................4

Safety Instructions ..................................................................................................................................................... 4

General Precautions ...................................................................................................................................................4

SECTION 2 – General Information .............................................................................................................................4

Introduction .............................................................................................................................................................. 4

Receiving and Checking ............................................................................................................................................4

Materials and Equipment Required ...........................................................................................................................5

Storage ...................................................................................................................................................................... 5

General Description ..................................................................................................................................................6

Typical Drawings .................................................................................................................................................. 7-10

SECTION 3 – Installation .........................................................................................................................................11

Foundation / Piping ................................................................................................................................................. 11

Pump Installation ....................................................................................................................................................12

Installing the Bowl Assembly ................................................................................................................................... 12

Installing the Column .............................................................................................................................................. 13

Installing the Discharge Head .................................................................................................................................. 15

Installing the Stuffing Box .......................................................................................................................................15

Installing the Mechanical Seal ..................................................................................................................................16

Mechanical Seal Alignment ......................................................................................................................................16

Installing the Tension Plate ...................................................................................................................................... 17

Installing the Driver ................................................................................................................................................19

Installing the Thrust Pot ..........................................................................................................................................22

SECTION 4 – Pump Start Up and Operation ............................................................................................................24

SECTION 5 – Maintenance ...................................................................................................................................... 26

Preventive Maintenance ..........................................................................................................................................26

Packing Adjustment and Replacement ...................................................................................................................... 26

Seasonal Shutdown ..................................................................................................................................................26

Thrust Pot Lubrication and Maintenance ................................................................................................................. 27

Recommended Lubricants .......................................................................................................................................28

Troubleshooting ...................................................................................................................................................... 29

SECTION 6 – Disassembly and Reassembly ..............................................................................................................31

Disassembly ............................................................................................................................................................. 31

Inspection and Reassembly ...................................................................................................................................... 32

SECTION 7 – Repair Parts ........................................................................................................................................ 34

Limited Warranty ...................................................................................................................................................... 36

DANGER

WARNING

CAUTION

WARNING

Hazardous voltage can shock, burn or cause death.

WARNING

CAUTION

WARNING

CAUTION

Safety Instructions – SECTION 1

TO AVOID SERIOUS OR FATAL PERSONAL INJURY OR MAJOR PROPERTY DAMAGE, READ AND FOLLOW ALL SAFETY INSTRUCTIONS IN THE MANUAL AND ON THE PUMP.

This is a SAFETY ALERT SYMBOL. When you see this symbol on the pump or in the manual, look for one of the following signal words and be alert to the potential for personal injury or property damage.

Warns of hazards that WILL cause serious personal injury, death or major property damage.

Warns of hazards that CAN cause serious personal injury, death or major property damage.

Warns of hazards that CAN cause personal injury or property damage.

NOTICE: INDICATES SPECIAL INSTRUCTIONS WHICH ARE VERY IMPORTANT AND MUST BE FOLLOWED.

THIS MANUAL IS INTENDED TO ASSIST IN THE INSTALLATION AND OPERATION OF THIS UNIT. THOROUGHLY REVIEW ALL INSTRUCTIONS AND WARNINGS PRIOR TO PERFORMING ANY WORK ON THIS PUMP.

MAINTAIN ALL SAFETY DECALS.

Install, ground and wire according to local and National Electrical Code Requirements.

Install an all leg disconnect switch near the pump.

Disconnect and lockout electrical power before installing or servicing the pump.

Electrical supply must match motor’s nameplate specifications. Incorrect voltage can cause fire, damage motor and void the warranty.

Single phase pump motors are equipped with an automatic thermal protector, which opens the motor’s electrical circuit when an overload condition exists. This can cause the pump to start unexpectedly.

General Precautions

Personal injuries will result if procedures outlined in this manual are not followed

Electric supply MUST match pump’s

nameplate specifications. Incorrect voltage can cause fire, damage to motor and voids warranty.

Safety Apparel:

• Insulated work gloves when handling hot sand collar.

• Heavy work gloves when handling parts with sharp

edges, especially impellers.

• Safety glasses (with side shields) for eye protection.

• Steel-toed shoes for foot protection when handling

parts, heavy tools, etc.

• Other personal protective equipment to protect against hazardous/toxic fluid.

Maintenance Safety:

• Always lock out power.

• Ensure pump is isolated from system and the pressure is relieved before disassembling the pump, removing plugs, or disconnecting the piping.

• Use proper lifting and supporting equipment to prevent serious injury or death.

• Observe all decontamination procedures.

General Information – SECTION 2

INTRODUCTION

NOTE: The information in this manual intends to be

used as a guide only. If you are in doubt, consult your Goulds Water Technology representative for specific information about your pump.

The design, material, and workmanship incorporated in the construction of Goulds Water Technology VIT Pumps makes them capable of giving long, trouble free service. The life and satisfactory service of any mechanical unit, however, is enhanced and extended by correct application, proper installation, periodic inspection and careful maintenance. This instruction manual was prepared to assist operators in understanding the construction and the correct methods of installing, operating and maintaining these pumps.

Rotating components of the pump assembly must be covered with a suitable

rigid guard to prevent injury to personnel.

Study thoroughly Sections 1 through 6 and carefully follow the instructions for installing and operating. Sections 5 contains answers to troubleshooting and maintenance questions. Keep this instruction manual handy for reference.

Goulds Water Technology will not be

liable for any damages or delay caused by failure to comply with the provisions of this instruction manual.

RECEIVING AND CHECKING

The pump should be carefully supported prior to unloading from the carrier. Handle all components carefully. Inspection for damage of the shipping crate should be made prior to unpacking the pump. After unpacking, visually inspect the pump and check the following:

1. Contents of the pump assembly against the

packing list.

2. All components against damage.

3. All shafting for damage, should the crate be

broken or show careless handling. All shafting must be checked for straightness.

Any shortages or damages should be immediately called to the attention of the local freight agent of the carrier by which the shipment arrived and proper notation made on the bill. This will prevent any controversy when a claim is

made and facilitate prompt and satisfactory adjustment.

EQUIPMENT REQUIRED

The material and equipment necessary for installation of the pump will vary with the size of the pump and the type of installation.

The following list of standard tools and supplies is offered only as a guide.

Storage Preparation

Goulds Water Technology VIT Pumps require proper preparation for storage and regular maintenance during storage. The pump shall be considered in storage when it has been delivered to the job site and is awaiting installation.

BULK MATERIAL

• Anti-Galling lubricant (such as Dow Corning “MOLYKOTE”)

• Thread Compound

• Lubrication Oil

• Turbine Oil

• Grease

RIGGING EQUIPMENT

• Mobile power hoist, traveling crane or derrick.

• Drag line and blocks.

• Lifting Bail for Threaded Column.

• Elevator clamps, if unit is unassembled.

• Clevises – for use with eyebolts.

• Timbers – size, length and quantity to support long pump parts on the floor.

• I-Beams or timbers to support pump over installation.

HAND TOOLS

• Pipe wrenches

• Feeler gauges

• Machinist Level

• Set of mechanics tools including: files, wire brush, pliers, wire cutters and pocket knife.

• Clean rags

• Dial indicator to assist in motor and pump alignment

OPTIONAL TOOLS TO FACILITATE PUMP ASSEMBLY AND DISASSEMBLY

• Taperlock driver to assist in bowl assembly and disassembly for pumps with taper lock impellers only.

STORAGE

Goulds Water Technology carefully preserves and protects its products for shipment. However, the effective life of the preservatives applied at the factory can vary from 3 to 18 months depending on the severity of the environment in which the equipment is stored. This section provides procedures for preparation prior to storage and maintenance during storage of Goulds Water Technology VIT Pumps. These procedures are necessary to protect the precision parts of the pumps. Specific procedures for storing motors, gear drivers, and engines, should be obtained from the equipment manufacturer. This section is intended to be of general assistance to users of Goulds Water Technology VIT Pumps. It shall not modify, amend and/or otherwise alter the scope of Goulds Water Technology VIT Pumps warranty responsibilities to the purchaser in any way whatsoever.

Preferably, the storage area shall be paved, well drained and free from flooding, and be indoors whenever possible.

Weatherproof coverings used for outdoor storage shall be flame resistant type sheeting or tarpaulins. They shall be placed so as to provide good drainage and air circulation and shall be tied down to protect from wind damage.

Storage area shall be maintained in a clean condition at all times.

Pumps and/or component parts shall be placed on skids, pallets, or shoring to permit good air circulation.

Pumps and/or component parts shall be sorted so as to permit ready access for inspection and/or maintenance without excessive handling.

Pumps and/or component parts stacked during storage shall be arranged so that the racks, containers, or crates bear full weight without distortion of pumps or parts. Identification markings must be readily visible. Any cover removed for internal access shall be replaced immediately.

Pump and bowl assembly shafting shall be rotated counter clockwise, as a minimum, once a month. Shaft shall not be left in the same previous position, nor in the extreme raised or lowered lateral position. Shaft should rotate freely.

NOTE: For further information on these procedures

contact your Goulds Water Technology representative.

Recommended Storage Procedures

Controlled storage facilities should be maintained at an even temperature 10º F (6º C) or more above the dew point with relative humidity less than 50% and little or no dust. (If these requirements can not be met the pump is to be considered in uncontrolled storage.)

For uncontrolled storage periods of 6 months or less, the pump is to be inspected periodically to insure that all preservatives are intact.

All pipe threads and flanged pipe covers are to be sealed with tape.

The pump must not be stored closer than six inches (15 cm) from the ground.

Uncontrolled Long Term Storage Preparations

When applicable to the pump, storage periods over six months require the preceding storage procedure and storage preparation plus the following:

Inspect the lube oil and seal flush piping and either fill the piping with rust preventative oil, or re-coat the piping periodically to prevent corrosion.

Discharge Head

The discharge head is either a cast iron head or a fabricated head. Ports are provided for connecting the pressure gauge, stuffing box bypass return and lubricator connections. The driver support portion of the discharge head is designed with large windows for easy stuffing box or tension plate adjustment. The windows are covered with guards for safe operation.

Place 10 pounds (4.5 kg) of moisture absorbing desiccant or 5 pounds (2.3 kg) of vapor phase inhibitor crystals near the center of the pump. If the pump is assembled, place an additional one pound (0.5 kg) in the discharge nozzle securely fastened to the discharge elbow.

Install a moisture indicator near the perimeter of the pump. Cover the pump with 6 mil (0.15 mm) minimum thickness black polyethylene or equal and seal it with tape. Provide a small ventilation hole approximately ½ inch (12 mm) diameter.

Provide a roof or shed shelter to protect from direct exposure to the elements.

GENERAL DESCRIPTION

The model VIT pump is a vertical turbine lineshaft pump, which is designed to meet wide ranges of service with maximum dependability. See Figure 1 or Figure 2 for open lineshaft pump and Figure 3 and Figure 4 for enclosed lineshaft pump.

Drivers

Hollow shaft motors or right angle gear drives, are often used with a separate head shaft through the driver and connected to the pump by a threaded coupling.

Column

Threaded or flanged column construction provides positive shaft and bearing alignment. Bearings are spaced to provide vibration free operation away from the shaft critical speed in order to insure long bearing life and reduced shaft wear. For open lineshaft, the shaft is supported within the column by using bearing retainers in the column assembly. For enclosed lineshaft, the bearings are also the tube couplings of the shaft-enclosing tube. The shaft-enclosing tube is stabilized in the column pipe by tube stabilizer.

Bowl Assembly

The bowls are generally of flanged construction for accurate alignment and ease of assembly and disassembly. Impellers may be either open or enclosed depending on the design requirements. They are fastened to the pump shaft by taperlocks. For temperatures over 140º F (60º C) and in the larger size bowls (over 18”), impellers are keyed to the shaft. A special first stage low NPSH impeller may be provided on some pump for certain special application.

Thrust Pot

A thrust pot is utilized when the driver is not designed to carry the pump thrust.

DISCHARGE HEAD ASSEMBLY

ITEM DESCRIPTION

600 DISCHARGE HEAD 601 MOTOR SUPPORT 608 HEADSHAFT 610 COUPLING ASSEMBLY 616 SEAL HOUSING 617 SEAL HOUSING BEARING 620 MECHANICAL SEAL 637 COLUMN FLANGE 779 SEAL HOUSING GASKET

COLUMN ASSEMBLY

642 COLUMN PIPE 645 COLUMN COUPLING 646 LINESHAFT 649 LINESHAFT COUPLING 652 BEARING RETAINER 656 LINESHAFT BEARING

BOWL ASSEMBLY

660 BOWL SHAFT 661 DISCHARGE BOWL 664 DISCHARGE BEARING 670 INTERMEDIATE BOWL 672 INTERMEDIATE BOWL BEARING 673 IMPELLER 677 TAPERLOCK 680 WEAR RING (OPTIONAL) 760 HEX BOLT 692 SAND COLLAR 688 SUCTION BOWL/BELL 690 SUCTION BEARING 698 SUCTION STRAINER 747 PLUG

Figure 1 Open Lineshaft Pump with

Threaded Column Pipe

DISCHARGE HEAD ASSEMBLY

ITEM DESCRIPTION

600 DISCHARGE HEAD 608 HEADSHAFT 610 COUPLING ASSEMBLY 616 SEAL HOUSING 617 SEAL HOUSING BEARING 620 MECHANICAL SEAL

COLUMN ASSEMBLY

642 COLUMN PIPE 645 COLUMN BOLTING 646 LINESHAFT 649 LINESHAFT COUPLING 652 BEARING RETAINER 656 LINESHAFT BEARING

BOWL ASSEMBLY

660 BOWL SHAFT 670 INTERMEDIATE BOWL 672 INTERMEDIATE BOWL BEARING 673 IMPELLER 677 TAPERLOCK 680 WEAR RING (OPTIONAL) 760 HEX BOLT 692 SAND COLLAR 688 SUCTION BOWL/BELL 690 SUCTION BEARING 698 SUCTION STRAINER 747 PLUG

Figure 2 Open Lineshaft Pump

with Flanged Column

HEAD ASSEMBLY

ITEM DESCRIPTION

600 DISCHARGE HEAD 604 ADJUSTING NUT 608 HEADSHAFT 621 O-RING 625 TENSION PLATE 626 TENSION NUT 630 OILER 637 COLUMN FLANGE 730 GIB KEY 779 TENSION PLATE GASKET

COLUMN ASSEMBLY

629 TUBE NIPPLE 631 COLUMN NIPPLE 639 COLUMN LOCK RING 642 COLUMN PIPE 645 COLUMN COUPLING 646 LINESHAFT 649 LINESHAFT COUPLING 654 OIL TUBE 656 LINESHAFT BEARING 658 TUBE STABILIZER

BOWL ASSEMBLY

659 COLUMN ADAPTER 660 BOWL SHAFT 661 DISCHARGE BOWL 664 DISCHARGE BEARING 665 OIL SEAL 668 TUBE ADAPTER BEARING 670 INTERMEDIATE BOWL 672 INTERMEDIATE BOWL BEARING 673 IMPELLER 677 TAPERLOCK 680 WEAR RING (OPTIONAL) 688 SUCTION BOWL/BELL 690 SUCTION BEARING 692 SAND COLLAR 698 SUCTION STRAINER 747 PLUG 760 HEX BOLT

Figure 3 Enclosed Lineshaft Pump with

Threaded Column Pipe

HEAD ASSEMBLY

ITEM DESCRIPTION

600 DISCHARGE HEAD 604 ADJUSTING NUT 608 HEADSHAFT 621 O-RING 625 TENSION PLATE 626 TENSION NUT 630 OIL RESERVOIR 637 COLUMN FLANGE 730 GIB KEY 779 TENSION PLATE GASKET

COLUMN ASSEMBLY

629 TUBE NIPPLE 642 COLUMN PIPE 645 COLUMN BOLTING 646 LINESHAFT 649 LINESHAFT COUPLING 654 OIL TUBE 656 LINESHAFT BEARING 658 TUBE STABLIZER

BOWL ASSEMBLY

660 BOWL SHAFT 661 DISCHARGE BOWL 664 DISCHARGE BEARING 665 OIL SEAL 668 TUBE ADAPTER BEARING 670 INTERMEDIATE BOWL 672 INTERMEDIATE BOWL BEARING 673 IMPELLER 677 TAPERLOCK 680 WEAR RING (OPTIONAL) 688 SUCTION BOWL/BELL 690 SUCTION BEARING 692 SAND COLLAR 698 SUCTION STRAINER 747 PLUG 760 HEX BOLT

Figure 4 Enclosed Lineshaft Pump with

Flanged Column

Installation – SECTION 3

FOUNDATION AND PIPING

SUB BASE (SOLE PLATE) INSPECTION

Sub base and sole plate are terms in common use to describe a general class of solid steel plates mounted in grout (or bolted to steel structures) at the pumpfoundation interface.

5. Carefully lower the sub base onto the foundation bolts. Hand tighten the nuts.

6. Leveling the sub base may be done by several methods. Two common methods are:

A. Using leveling wedges. This is shown in Figure 6.

B. Leveling nuts on the anchor bolts.

1. Remove the sub base from the pump discharge head, when shipped assembled.

2. Completely clean the underside of the sub base. It is sometimes necessary to coat the underside of the sub base with an epoxy primer. (This is available as an option.)

3. Remove the rust preventative solution from the machined topside with an appropriate solution.

SITE WITH CONCRETE FOUNDATION

1. A pump should have adequate space for operation, maintenance and inspection.

2. Sub base mounted pumps are normally grouted on a concrete foundation, which has been poured on a solid footing. The foundation must be able to absorb any vibration and to form a permanent, rigid support for the pumping unit.

3. The foundation must be of adequate strength to support the complete weight of the pump, plus the weight of the liquid passing through it. A typical installation will have bolts with a pipe sleeve 2½ times the bolt diameter embedded in the concrete.

BOLT

SHIMS

SUB BASE

Regardless of the method, a machinist level must be used for leveling.

NOTE: When using a machinist level, it is important

that the surface being leveled is free of all contaminants, such as dust, to ensure an accurate reading.

7. Level the sub base in two directions at 90 degrees on the machined surface. The levelness tolerance is 0.005 inches per foot for commercial, and 0.001 inches per foot for API.

FOUNDATION

DAM

GROUT

CENTERLINE ANCHOR BOLT

SUB BASE

LEVELING WEDGES

FLOOR SLEEVE (OPTIONAL)

Figure 6

DAM

FOUNDATION

SLEEVE

Figure 5

Bolts should be sized and located in accordance with the dimensions given on the Certified Pump Outline Drawing, if provided. The pipe sleeve allows movement for the final positioning of the foundation bolts to conform to the holes in the sub base flange. See Figure 5.

4. Remove water and/or debris from anchor bolt holes/ sleeves prior to grouting. If the sleeve type bolts are being used, fill the sleeves with packing or rags to prevent grout from entering.

SUB BASE GROUTING

1. Inspect foundation for dust, dirt, oil, chips, water, etc. and remove any contaminants. Do not use oilbased cleaners as grout will not bond to them. Refer to grout manufacturer’s instructions.

2. Build dam around foundation (See Figure 6). Thoroughly wet foundation. Refer to grout manufacturer’s instructions.

3. Pour grout between sub base and concrete foundation, up to level of dam. Remove air bubbles from grout as it is poured by puddling, using a vibrator, or pumping the grout into place. Nonshrink grout is recommended. Refer to grout manufacturer’s instructions.

4. Allow grout to set at least 48 hours.

5. Tighten foundation bolts.

PIPING

Guidelines for piping are given in the “Hydraulic Institute Standards”, available from: Hydraulic Institute,

9 Sylvan Way, Parsippany, NJ 07054-3802 and must be

WARNING

CAUTION

reviewed prior to pump installation.

Never draw piping into place by forcing

the flange connections of the pump. Pipe strain will adversely effect the operation of the pump resulting in damage to the equipment and possible physical injury.

to lower unit until the discharge head flange engages and rests firmly on the plate, then secure with capscrews provided.

5. When a lineshaft is shipped separately check shaft

for straightness; average total run out should not exceed 0.005” TIR (0.127mm) for 10 feet (3m). Shaft must be within tolerance prior to installation.

1. All piping must be supported independently of, and

line up naturally with the pump flange so that undue pipe strain is not imposed on the pump.

2. DO NOT connect piping to pump until grout has

hardened and pump hold-down bolts have been tightened.

3. It is suggested that expansion loops or joints, if used,

be properly installed in the discharge line. When handling liquids at elevated temperatures expansion joints are used, so linear expansion of piping will not draw pumps out of alignment.

4. Carefully clean all pipe parts, valves and fittings,

and piping branches prior to assembly.

5. Isolation and check valves should be installed in

discharge line. Locate the check valve between isolation valve and pump, this will permit inspection of the check valve. The isolation valve is required for regulation of flow, and for inspection and maintenance of pump. The check valve prevents pump or seal damage due to reverse flow through the pump when the driver is turned off.

6. Increasers, if used, should be placed between pump

and check valves.

6. Refer to remainder of this manual for complete assembly, startup, maintenance, disassembly and recommended lubricants for the pump.

INSTALLING A PARTIALLY ASSEMBLED PUMP

Do not work under a heavy suspended

object unless there is positive support and safe guards, which will protect personnel, should a hoist or sling fail.

Do not attempt to lift bowl assembly by the pump shaft. This can result in

damaging the pump shaft.

1. Prior to installing the bowl assembly, check that

all capscrews are tight. Turn the pump shaft by hand and make sure it turns freely. Remove all accumulated dust, oil or other foreign material from the external surfaces.

2. Place two I-beam supports across the base plate

opening, strong enough to safely support the weight of the entire pump assembly. These I-beams should be connected by threaded rods and nuts so as to clamp them firmly together to support the pump. (See Figure 7).

7. Cushioning devices should be used to protect the pump from surges and water hammer if quickclosing valves are installed in the system.

PUMP INSTALLATION

Pumps of 20 feet (6 meters) or less in length are usually shipped assembled, with the exception of the driver, mechanical seal with tubing and coupling assembly, spacer or non spacer type. When provided, refer to the Certified Pump Outline for the applicable base plate plan for the location of anchor bolt holes.

INSTALLING AN ASSEMBLED PUMP

1. If a base plate was supplied, install as described in Foundation/Piping Section (page 11).

2. Clean the mounting surface of the plate and clean bottom surface of discharge head mounting flange.

3. Sling through discharge head holes or thread two eyebolts through bolt holes in the mounting flange and hoist unit into position over foundation.

NOTE: Eyebolts or sling should be rated to handle in excess of the pump weight (See Outline Drawing).

4. Lower the unit and carefully guide it so that unit does not strike the side of the base plate. Continue

Figure 7

3. Place a suitable hoist or derrick over base plate opening with the hook in the center.

4. If a suction strainer is provided, assemble it to the suction bell (or suction bowl).

5. Place the elevator clamps just below the discharge bowl. For flanged column install two threaded eyebolts through the discharge bowl bolt holes 180º apart for flanged column. For threaded discharge utilize a lifting bail sized to handle the weight of the bowl assembly and suction apparatus.

6. Attach a sling to the elevator clamps, eyebolts,

CAUTION

or lifting bail and hoist it into position over the foundation opening. (See Figure 7).

7. Carefully lower bowl assembly, guiding the unit so it does not strike the sides of the opening. Continue to lower bowl assembly until the elevator clamps or discharge bowl flange rests firmly on the I-beam supports.

8. Place a cover over the discharge bowl opening to prevent entrance of dirt or other foreign matter until ready for installation of the column assembly.

Do not drop any foreign object into the

bowl assembly. Such an object can cause serious damage to the pump and any downstream components. Any foreign object dropped into the bowl assembly must be retrieved prior to continuing assembly.

COLUMN

OPEN LINESHAFT

Lineshafts are coupled with threaded or keyed couplings. Column pipe may be threaded or flanged. When provided, see the Certified Pump Outline Drawing for the number of column and shaft sections required. The top and bottom sections may be special lengths:

1. Check the lineshaft (646) for straightness. Average

total runout should be less than 0.0005” TIR per foot, not to exceed 0.005” T.I.R. for every 10 feet of shafting.

Bottom section of column pipe should not

be longer than 5 feet.

2. Hoist the first piece of lineshaft over the bowl

assembly. Lower the lineshaft until the bottom end is properly aligned with the coupling of the pump shaft. Apply a thin film of oil to the threads on the lineshaft (646) and the coupling (649) (for nongalling material, or Molykote if galling material).

Use “MOLYKOTE” Dow Corning or

equal for all galling material such as 316 stainless steel.

3b. With a keyed coupling

insert the key into the pump shaft. Lower the sleeve over the pump shaft, to approximately 1.0 in (25.4 mm) below the top of the shaft. Then lower the lineshaft until it touches the pump shaft. Insert the split ring into the grooves of the pump shaft and lineshaft. Raise the sleeve until it covers the split ring,

then insert the key into the lineshaft. Raise the sleeve to the top of the key and secure the sleeve to the split ring with a lock screw and lock wire.

4. For threaded column, secure a friction clamp immediately below the column coupling. Hoist column section over bowl assembly. Lower column over lineshaft until column pipe engages the discharge bowl. Manually screw the column into discharge bowl. Complete joint by tightening column with chain tongs until the end of the column butts firmly against discharge bowl.

5. For flanged column, install two eyebolts diametrically opposite the upper flange of the bottom column. Attach a sling to the eyebolts and to the hoist hook. Lower column section until the flange engages the flanged top bowl register. Insert as many bolts through both flanges as possible. Lift column assembly high enough to allow rotation of the supports. Install and tighten remaining capscrews gradually in diametrically opposite pairs until all are uniformly tightened.

6. Lift the assembly and remove the elevator clamp or supports and slowly lower the bowl and the column assembly. Place supports on the base plate and continue to lower the assembly until the column elevator clamps or column flange comes to rest on the supports. Place an elevator clamp under the column pipe and allow it to butt firmly against the column pipe coupling.

3a. With lineshaft in the proper position on the

coupling, screw lineshaft into the coupling manually until resistance is felt. A fine wire inserted in the hole at the center of the coupling can be used as a gage to determine when the coupling is correctly positioned on the shaft. Remove the wire after installing the shaft. Completely tighten the joint by using a pair of pipe wrenches. Use care not to damage any bearing journal areas on the shaft.

NOTE: Shaft threads are left-handed.

Make up threaded joints manually to

verify that the threads are properly engaged prior to applying a wrench. If cross-threading occurs, break the joint and repair the threads. If the threads are beyond repair, replace the damaged part.

7. Place the bearing retainer over the shaft and locate it in the column coupling recess. Make sure the end faces of the column pipe are clean. For flanged columns, fit the retainer in the female register of the flange. Make sure the contact faces in the flanges are clean.

8. Check that the shaft is approximately centered in the bearing. Move the shaft around slightly so as to center it in its bearing. Only a slight amount of force should be required. If an excessive amount of force

is required, the pipe or shaft may not be butted properly or the shaft may be bent. In any case, the

problem must be corrected prior to proceeding further.

9. Repeat the preceding procedures until all column sections required have been installed.

10. Install the top shaft or stub shaft and coupling. If

CAUTION

the pump is equipped with column adjusting nipple, install it with longer threaded end upward. Screw the lock ring on to the nipple until you reach the end of the thread.

Do not drop any foreign object into the

column assembly. Such an object can cause serious damage to the pump and any downstream components. Any foreign object dropped into the column assembly must be retrieved prior to continuing assembly.

ENCLOSED LINESHAFT

1. Insert tube (654) and shaft (646) sections into

column section.

7. With lineshaft in proper position on the coupling, remove tail rope and screw lineshaft into coupling until resistance is felt. A fine wire inserted in the hole at the center of the coupling can be used as a gage to determine when the coupling is correctly positioned on the shaft. Remove the wire after installing the shaft. Completely tighten the joint by using a pair of pipe wrenches. Use care not to damage any bearing journal areas of the shaft.

NOTE: Shaft threads are left-handed.

Make up threaded joints manually to

verify that the threads are properly engaged prior to applying a wrench. If cross-threading occurs, break the joint and repair the threads. If the threads are beyond repair, replace the damaged part.

2. Place an elevator clamp near top of column just below and butt firmly against column pipe coupling (645). For flanged columns, place the elevator clamp just below the flange.

3. Attach a sling to hoist hook. Attach bottom of shaft (646) to column (644), by tying a tail rope to deepthroated clamp attached to bottom of column. (See Figure 8). Tie a clove hitch or double half hitch around the enclosing tube and then around the shaft in threaded area. Figure 8 also shows the alternate method (dotted lines).

COLUMN

DEEP THROATED CLAMP

ENCLOSING

DRAG LINE

HOIST HOOK

ROPE

TUBE

CHAIN WRENCH

(CLAMP)

Figure 8

4. Utilize the remaining tail rope to keep tension on the knots during hoisting. Lower end of column section shall be guided by a drag line which is pulled by the hoist. A traveling block for the drag-line shall be attached to a deep-throated clamp, which is secured to bottom of the column threads.

8. Carefully lower column section until lower end of the tube section rests on the adapter bearing (668). The end faces of the tube should be clean and free of nicks. Remove tail rope, clean outside of the adapter bearing and lubricate with thread compound. Screw tube section onto adapter bushing manually, until resistance is felt. Complete tube joint by utilizing a pair of pipe wrenches or chain tongs, butting the end of tube against the upper end of the tube adapter bearing.

9. Clean column threads and lubricate with thread compound.

10. Lower column until column pipe engages in the discharge bowl. Manually thread the column into discharge bowl. Complete joint by tightening column, utilizing chain tongs until the end of the column butts firmly against discharge bowl.

11. Lift the pump assembly and remove elevator clamp secured to discharge bowl. Slowly lower assembly into well or sump until elevator clamp gently comes to rest on timbers or I-beam supports and remove the sling.

12. Remove the exposed lineshaft bearing, pour oil into the tubing and reinstall the bearing. The amount of oil to be poured is given in the following table:

Tube Size

Amount of oil per section

10 ft. Sections 20 ft. Sections

1¼, 1½, 2 ½ Cup 1 Cup 2½, 3, 3½ 1 Cup ½ Qt. 4 and larger ½ Qt. 1 Qt.

5. Hoist column section over pump, keeping tension on tail rope. With column in a vertical position, remove drag-line and traveling block, lower column until bottom line shaft is properly aligned with pump shaft coupling.

6. Apply a thin film of oil to the threads on the lineshaft (646) and the coupling (649) (for nongalling material or Molykote if galling material).

Use “MOLYKOTE” Dow Corning or equal for all galling material such as 316

stainless steel.

See page 27 for recommended oil.

13. Repeat the preceding procedures. Throughout the column assembly, install tube stabilizer (658) over the enclosing tube (654) every 40 feet. The last one should be less than 20 feet below the bottom of the discharge head. Use soapy water as lubricant when sliding the stabilizer over the tube.

14. Continue the procedure until all column sections for the proper setting have been installed, excluding the column adjusting nipple (631) and tube nipple (629), if provided.

CAUTION

15. Install the top shaft or stub shaft and coupling.

Do not drop any foreign object into the

bowl assembly. Such an object can cause serious damage to the pump and any downstream components. Any foreign object dropped into the bowl assembly must be retrieved prior to continuing assembly.

INSTALLING THE DISCHARGE HEAD

VIT Pumps are provided with either a cast iron or fabricated steel type head. For pump with below ground discharge, a motor stand is provided instead the discharge head. Install the discharge head as follows:

1. If the stuffing box (See Fig. 9) or tension nut (See

Fig. 10) is assembled to the head, remove it and all the attached piping.

2. For threaded column, check to be sure that the

column flange (637) is securely attached to the bottom of the discharge head. Check and tighten the capscrews (or socket head screw) gradually in

diametrically opposite pairs.

3. Remove coupling guard if provided. Attach a sling

to the lifting lugs on the side of the discharge head through windows and hoist discharge head over the protruding top shaft (or stub shaft).

Do not bump or scrape the shaft protruding above the column. This could result in

bending or damaging the shaft.

4. Orient the discharge head in the required position

and lower the head. Center the vertical hole with the top shaft protruding above the column. For threaded column, continue to lower the discharge head until the large threaded hole in the bottom of the discharge head rests squarely on top of column. Clean the threads at upper end of column assembly and lubricate with thread compound. Rotate discharge head, screw it onto the column, for short set-pump, (without the column adjusting nipple) butting the top of column tightly against the discharge head.

5. For flanged column, continue to lower the discharge

head until the discharge head engages the column flange. Install capscrews and secure discharge head to the column flange. Tighten capscrews gradually in diametrically opposite pairs. Lift the pump assembly high enough to allow rotation of the supports. Realign and lower assembly. Install and tighten remaining capscrews. Repeat the rotating and the tightening procedure until all capscrews are uniformly tight.

6. Hoist the discharge head by lifting lug and remove

the elevator clamp attached to column.

7. Remove the support timbers or I-beams and clean

the top of foundation or base plate. Orient the discharge head in the required position.

NOTE: Sling should be rated to handle in excess of the

pump weight.

8. Lower bowl, column and head assembly, until

discharge head mounting flange engages base plate. Secure discharge head to the foundation or base plate. Check the levelness of the discharge head in all directions, utilizing a machinist level across the driver’s mounting surface of the discharge head.

9. Check whether the top shaft (or stub shaft) is in the

center of the stuffing box bore. If not, the shaft must

be centered by shimming the head base and the sub base (or the foundation).

10. Rotate the shaft approximately 90º. Check again whether the shaft is at the center of the stuffing box bore or not. If not, either the top shaft is bent or the first shaft below it did not butt properly. Correction must be made before the installation procedures can proceed.

INSTALLING THE STUFFING BOX

Assemble stuffing box as shown in Figure 9.

1. Clean the surface of the discharge head where the stuffing box will be mounted and remove any nicks or burrs with a fine flat file. Position gasket on surface. Slide stuffing box (616) down over headshaft and into position on the gasket. Secure stuffing box with capscrews. Make sure the capscrews are torqued equally to prevent misalignment.

2. Grease the packing ring (620) for easier installation.

3. Twist the packing ring sideways to get it around the shaft easily. Start the first ring into the stuffing box. When the entire ring is worked in using the fingers, tamp it down using a split wood bushing (or equal) and push the packing ring down firmly. It must seal on the shaft and bore of the stuffing box. Install all three (3) rings in this manner. Stagger ring joints 90º apart. The split gland may be used as a tamper for the top ring.

4. Insert lantern ring (622) into stuffing box. Be sure it is properly positioned so that it aligns with the lubrication passage in the stuffing box.

5. Insert three (3) additional rings of packing. Stagger ring joint 90º apart.

6. Install the split gland and screw nuts on the split gland studs. Tighten nuts then relieve the nuts and tighten finger tight.

Check that the split gland is square in the

stuffing box. Cocking can cause uneven compression of packing and damage to the shaft or sleeve and heat up the shaft and stuffing box.

(619) STUD (2)

(735) HEX NUT

(2)

PORT “A”

(622) LANTERN

RING

Figure 9

(624) BYPASS LINE

(618) GLAND

PORT “B”

(621) O-RING

(620) PACKING (6 RING)

(616) STUFFING BOX

(617) BEARING

7. The stuffing box is shipped with both ports plugged.

CAUTION

If the discharge pressure is over 100 psi, remove the plug on Port “A” and attach a bypass (relief) line. If the discharge pressure is over 200 psi, remove the plug on Port “B” and attach another bypass line.

8. Final adjustment of the stuffing box must be made at pump start up. A properly packed stuffing box should be loose enough to allow the shaft to be turned manually. Also, packing must allow leak. See page 24, Pump Start Up #5.

Do not over tighten packing or excessive wear can occur on the shaft or sleeve.

INSTALLING THE MECHANICAL SEAL

Vertical turbine pumps are usually supplied with cartridge type mechanical seals, shipped assembled - ready for installation, when mechanical seals are supplied. Instructions for installing mechanical seals are provided by the seal manufacturer. Consult the seal manufacturer’s

instructions (furnished with the seal) for information on the type of seal used. Additionally, refer to factory

furnished outline drawing and seal piping schematic on complex seal piping arrangements.

GENERAL REQUIREMENTS FOR INSTALL SEALS

1. Check surfaces at the face of the seal housing and at the bottom of the seal housing to insure that they are clean, flat and free of burrs. The face surface must be smooth to form a good sealing surface for a gasket or O-ring.

2. Check that shaft is smooth, and free of burrs, nicks and sharp corners that could nick or cut the O-ring or shaft packing. When further clean up is required, protect by covering the inside of the pump seal housing. Remove burrs, nicks and sharp corners by using a strip of emery cloth over the shaft threads. File threads around the keyway with a smooth mill file or emery cloth. Sharp edges must be rounded.

3. Remove all chips and dust from the shaft area.

4. Check that all rotary unit parts of the seal fit over the shaft. A pre-check may be made by removing the O-ring(s) from the cartridge sleeve Inside Diameter (ID) and then installing the seal on the shaft. Further shaft clean up will be necessary when the seal will not pass all the way into the seal housing.

5. Remove the seal after the pre-check and re-install the sleeve O-ring(s).

6. Sparingly lubricate the shaft and sleeve ID with the lubricant included with the mechanical seal or recommended by the mechanical seal manufacturer. The following lubricants may be used, for water service, when no lubricant is supplied or recommended by the mechanical seal manufacturer.

• Light oil (SAE #10 or 20)

• Dow Corning #4 Grease

• Silicone lubricant

• Wax or Clay

• Soapy water

7. Install the O-ring or gasket, between the seal housing and seal. Install the seal over the shaft and ease it into position against the face of the seal box. Take care when passing the sleeve and O-ring over keyways or threads to avoid damaging the O-ring.

Do not bump carbon members against The shaft as they may chip, crack or break.

8. Position seal gland on discharge head seal housing and secure with capscrews (or nuts for studs) provided. Tighten capscrews gradually and uniformly in a criss-cross pattern, taking 2 or 3 passes.

Do not over tighten capscrews on gland. This can distort seal seat and cause seal

failure.

9. Install all seal piping as required. Prior to making final connections of sealing liquid pressurizing lines, make sure the seal housing and all sealing liquid lines are flushed free of dirt, scale and other particles that would be abrasive to the sealing faces.

10. The Driver and Coupling must now be installed per instruction. (See page 24 - INSTALLING THE HOLLOW SHAFT DRIVER or page 26 INSTALLING THE SOLID SHAFT DRIVER).

MECHANICAL SEAL ALIGNMENT

CONCENTRICITY OF MOTOR SHAFT

1. Install the dial indicator as shown, with the base attached to the motor support.

2. Rotate the motor shaft by hand while you read the dial.

3. Make sure that the runout does not exceed NEMA standards, 0.002 in (0.05 mm) maximum TIR.

4. If the indicator reads higher than 0.002 in (0.05 mm)TIR, loosen the four motor hold-down bolts and relocate the motor on the motor base register.

5. Obtain the desired position.

6. Tighten the hold-down bolts and repeat the indicator reading.

Note: Adding or removing shims between the motor and the discharge head helps alignment in the vertical direction. The motor may also have to be adjusted in the horizontal direction for alignment.

Oil based lubricants will damage EPR / EPDM elastomer O-rings. Silicone lube and soapy water are safe for EPR / EPDM elastomer O-rings.

FLATNESS OF THE SEAL HOUSING

For this measurement, remove the mechanical seal if the dial indicator stylus cannot rotate 360° on the top surface of the seal gland.

1. Install the dial indicator as shown, with the base 1) Remove the lower coupling components and attach the base of the dial indicator to the motor shaft.

2. Place the stylus at the top surface of the seal gland, or at the top surface of the seal housing.

3. Slowly rotate the motor shaft 360°.

4. Check that the face of the seal housing is square with the shaft to within 0.002 in (0.05 mm) TIR.

CONCENTRICITY OF THE SEAL HOUSING

This measurement requires that you remove the mechanical seal.

1. Install the dial indicator as shown.

2. Rotate the motor shaft by hand and run the indicator in the insidemachined surface of the seal housing in order to determine the concentricity.

3. If the indicator reads higher than 0.004 in (0.10 mm) TIR, loosen the four motor hold-down bolts and relocate the motor on the motor base register.

4. Obtain the desired position.

5. Tighten the hold-down bolts and repeat the indicator reading.

CONCENTRICITY OF THE HEADSHAFT

1. Reinstall the mechanical seal if it was removed for the flatness or concentricity measurement.

2. Install the coupling assembly and adjust the impeller.

3. Attach the base of the dial indicator on the discharge head or motor support.

4. Place the stylus on the shaft between the top of the seal and the bottom of the pump coupling.

5. Slowly rotate the motor shaft 360°.

6. Check that the shaft runout is within 0.004 in (0.10 mm) TIR, or as required by specification.

7. Drill and dowel the pin in three places in order to secure the motor to the motor base after you obtain the required runouts.

CONCENTRICITY OF MOTOR SHAFT USING JACKSCREWS

1. Install the dial indicator as shown, with the base attached to the motor support.

2. Rotate the motor shaft by hand while you read the dial.

3. Make sure that the runout does not exceed NEMA standards, 0.002 in (0.05 mm) maximum TIR.

4. If the indicator reads higher than 0.002 in (0.05 mm) TIR, using the jackscrews relocate the motor on the motor base (sometimes no register).

5. Obtain the desired position.

6. Tighten the hold-down bolts (not the jackscrews) and repeat the indicator reading.

Note: Adding or removing shims between the motor and the discharge head helps alignment in the vertical direction. The jackscrews are provided to adjust the motor in the horizontal direction for alignment.

INSTALLING THE TENSION PLATE WITH CAST IRON TENSION NUT

INSTALLING THE TUBE TENSION PLATE

1. (See Figure 10). Lubricate tube threads and underside of tension plate flange with thread compound. Thread the tension plate (625) onto the enclosing tube nipple (629) manually until its shoulder rests on the discharge head.

TENSIONING THE ENCLOSING TUBE

The enclosing tube sags from its own weight as it is installed and must be pulled tight (tensioned) to make it straight. This section describes two methods of tensioning the tube. The direct pull method is more precise and is preferred. The second method--the wrenching method--is given as an alternate.

NOTE: The correct tension is equal to the weight of the

enclosing tube plus 10%.

Weights per unit length for each tube size are given in the Table 1. Multiply by total length of the tube to determine the total weight.

TABLE 1 – Weight-per-foot of Enclosing Tubing

TUBE SIZE (INCH) WEIGHT PER FOOT (LB.)

1¼ 2.99 1½ 3.63 2 5.02 2½ 7.66 3 10.25 3½ 12.50 4 14.98 5 20.78 6 28.57

DIRECT PULL METHOD

CAUTION

1. The upper end of the tube may be pulled by the hoist to obtain the predetermined tension value. This requires the use of a dynamometer scale and an adapter fitting to grip the tube. TUBE TENSION ADAPTER AVAILABLE THROUGH FACTORY. With the tension plate installed manually but not tightened, thread the special fitting onto the top of the tube to full engagement. Attach the dynamometer scale to the fitting, and connect the upper end of the scale to the hoist hook. Operate the hoist hook to apply the required tension. This should pull the tension plate off the discharge head. Manually thread the tension plate to reset it. Release tension, remove dynamometer scale and special fitting.

WRENCHING METHOD

1. If a dynamometer is not available, the tube can be tensioned by wrenching the tube tension plate. Make up a spanner wrench to straddle the projecting threaded tube end and to engage the tube tension plate capscrew holes by two lugs. Torque the tension plate to take all the slack out of the shaft tubing and induce a reasonable amount of tension by turning the tension plate counterclockwise. For tubing 2½” (63.5mm) and larger, an individual's full strength on a 3 foot (915mm) lever arm is sufficient. For smaller sizes, less pull must be exercised.

NOTE: Do not turn clockwise to align holes in tension

plate and discharge head.

INSTALLING TENSION NUT

1. (See Figure 10). Install capscrews (760) in the tension plate. Pour one pint of oil down the oil tube. Note: Factory assembled unit has no oil in it.

Oil must added in the field.

2. Install packing (620) in the tension plate and thread the tension nut (626), tightening it firmly against the packing.

3. If a packed type tension nut (626) is used (for water flush), install packing (620), packing gland (618) and secure with stud (734) and nut (735). Screw nut finger tight. Install line assembly (635) and connect to flush liquid supply (see Figure 10).

Be sure that the top of the enclosing tube does not interference with the tension nut.

4. If the top of the tube interferes with the tension nut, determine the distance, if the tube is too long or too short. If the tube is too short, it must be replaced with a longer tube of the correct length. If the tube is too long, it must be cut to the correct length and re-threaded. Reinstall and re-level pump.

LUBRICATION SYSTEM

1. Connect solenoid valve (if provided), oil lines, and fill the oil reservoir with oil.

2. Check the lubricator feed and see that the oil reservoir is flowing freely. (In the case of a solenoid valve, temporary power connections are required.) Set the proper drops per minute on the regulator. Table 2 shows recommended regulator setting.

TABLE 2 – Regulator Setting

Shaft Size Basic drops

100 ft. setting

(in.) per minute

Additional drops

per minute per

0.75 - 1.18 5 2

1.50 - 1.68 7 3

1.94 - 2.43 10 4

2.68 and larger 12 5

INSTALLING THE TENSION PLATE WITH BRONZE TENSION NUT

Assemble Tension Plate Assembly as shown in Figure 11.

1. Remove the lock bolt (636) and o-ring (621). Thoroughly clean the tension plate (625) include the o-ring groove. Lightly grease the o-ring and re-install it.

2. Clean the surface of the discharge head where the tension plate will be mounted and remove any nicks or burrs with a fine flat file. Clean the O.D. of the tube nipple. Carefully install the tension plate and gasket (779). Evenly tighten the mounting capscrews (759F).

3. Pour one pint of recommended oil down the tube nipple (629). (See page 27 for recommended lubricants.) Note: Factory assembled unit has no oil

in it. Oil must be added in the field.

Figure 10

CAUTION

WARNING

LUBE LINE

(635)

LOCK BOLT

(636)

TENSION NUT

(623)

CAPSCREWS

TENSION PLATE

(625)

GASKET

(779)

O-RING

(621)

TUBE NIPPLE

(629)

Figure 11

4. Clean the tension nut (623) and lightly oil its bore and the threads. Screw the tension nut into the tube nipple until the flange face of the nut contact the tension plate.

5. For setting less than 100 feet, tighten the tension nut until a slot aligns with the nearest locking position. Install the locking bolt.

INSTALLING THE DRIVER

INSTALLATION OF A HOLLOW SHAFT DRIVER

This refers to either VHS type electric motors or hollow shaft type gear drives. A small paragraph will be devoted to combination electric motor and right angle gear drives.

Do not work under a heavy suspended

object unless there is a positive support and safe guards which will protect personnel should a hoist or sling fail.

1. The driving mechanism of all hollow shaft driver is

shown on Figure 12. The head shaft (608) extends up through the quill or hollow shaft of the driver and is held in place by an adjusting nut (604), which not only carries all the static and hydraulic thrust of the impellers and shaft, but also provides the adjustment for the impeller clearances. The head shaft is connected to top shaft (or stub shaft) by a threaded coupling or a rigid flange coupling.

2. When a motor stand is furnished and not installed,

proceed as follows: A. Hoist the motor stand, inspect the mounting

surfaces, register and clean these surfaces thoroughly.

B. Install the motor stand on discharge head and secure with capscrews provided.

3. Attach a sling to the lifting lugs of driver and hoist

the driver up. Inspect the mounting surface, register and clean these surfaces thoroughly. If any burrs are found, remove burrs with a smooth mill file, cleaning thoroughly afterward.

4. For motor, orient the motor conduit box in the

required position. For the right angle gear, orient

the input shaft to the desired position. Align the driver mounting holes with the mating tapped holes on the discharge head. Lower the driver until the registers engage and the driver rests on the discharge head. Secure driver with capscrews provided.

5. Lubricate the driver bearings in accordance with instructions given on lubrication plate attached to the driver case (or in the motor IOM).

(604) ADJUSTING

NUT

(730) GIB KEY

DRIVE

COUPLING

HEADSHAFT (608)

CAPSCREW (760) ADJUSTING NUT

HOLD DOWN BOLT

Figure 12

6. After lowering and orienting the driver as explained above, remove the drive coupling and the hold down bolts (See Figure 12). Be sure to mark the

location of the coupling before removing it.

7. Lower the head shaft through the motor quill shaft to meet the shaft coupling. Apply a thin film of oil to head shaft threads (if non-galling material) and screw into the shaft coupling (located above the stuffing box). Make sure the shaft is not damaged in any way. Tighten the joint.

8. Check that the head shaft centers inside the driver quill shaft within 0.06” (1.5 mm). If it does not, misalignment is indicated.

9. Any head shaft misalignment with driver quill shaft could be caused by a bent headshaft, burrs, or foreign matter between shaft ends or any of the mounting flanges: motor flange to discharge head top flange, discharge head base flange to base plate or the base plate itself could be out of level. If the latter, shimming between base plate and discharge head base, will correct it. Also, check concentricity of motor to motor-stand (if provided) to discharge head.

10. With the motor in place and the head shaft projecting through the motor quill shaft, make temporary electrical connection to check the motor rotation. (Be sure to remove the ratchet pins or balls before checking motor rotation.) Motor must rotate counter-clockwise when viewed from the top. See arrow on pump name plate. If motor does not rotate counter-clockwise, you can change the rotation by interchanging any two leads. (For three phase only. For single phase motors see motor manufacturer’s instructions.)

Never check motor rotation with the drive

coupling in place. The bore clearance between the drive coupling and the pump shaft O. D. is so close that should the motor spin with this shaft stationary, galling and locking together is very likely to take place.

11. Install motor drive coupling. (Be sure to line up the

WARNING

match mark made at step 6.) Inserting the ratchet pins if a non-reverse ratchet is used. Match the coupling lugs with corresponding holes in motor. Tighten hold down bolts evenly, making sure driver coupling is properly seated in the register fit.

12. Fit gib key (730) into keyway, by filing if necessary, to where there is a snug but sliding fit. This key must be able to be removed by gentle leverage with a screwdriver under it.

13. Be careful that the gib key (730) is not too high so as to hold up the adjusting nut (604) from seating on the drive coupling. If it is, cut off some length of the key.

14. Install adjusting nut (604) to hand tight.

COMBINATION ENGINE AND MOTOR DRIVES

1. On combination drivers, the motor is invariably on top with a projecting head shaft extension.

2. Follow all procedures outlined in the previous paragraph, except that the motor must be lowered over this extended head shaft and great care must be taken to center it exactly so as not to bump or misalign the shaft while the motor is being lowered into place.

3. There are several methods of running engines without electric motors and vice versa, requiring simple adjustment to the combination drive, but they are too numerous to mention here and can be obtained from the gear manufacturers instructions included with the shipment.

IMPELLER ADJUSTMENT FOR ALL HOLLOW SHAFT DRIVERS

NOTE: Shaft adjustment up or down is accomplished by

turning the adjusting nut (604) Figure 13.

NOTE: There are five holes in the adjusting nut and

only four in the motor coupling. See Figure 13.

1. With shafting all the way down and the impellers resting on their seats, turn the adjusting nut (604) in counter-clockwise direction, thus lifting the shaft, until the impellers just clear their seats and the shaft/motor turns free by hand. This removes all deflection from the shaft.

2. If pump setting is 200 ft. or less, make another two turns on the adjusting nut for the first 100 ft. (3 turns for 12 thread/inch shaft). Line-up one of the holes in the adjusting nut with the nearest hole in the driver coupling. Insert the capscrew in the hole and tighten it.

NOTE: 1.00" and 1.18" diameter shafts are 12 thread

per inch (tpi), 1.50" through 2.44" are 10 tpi, all larger sizes are 8 tpi.

3. For pump setting over 200 ft. see IOM for DWT.

FOR OPEN IMPELLERS

1. With shafting all the way down and the impellers

resting on their seats, turn the adjusting nut (604) in counter-clockwise direction, thus lifting the shaft, until the impellers just clear their seats and the shaft/motor turns free by hand. This removes all deflection from the shaft.

2. Align hole “A” in the

(604) ADJUSTING NUT

adjusting nut (604) and hole “C” in the driver

LOWER IMPELLER

coupling (See Figure13) or whatever similar holes are

RAISE IMPELLER

in like position. If care is exercised, this will give an initial impeller clearance

of 0.001” to 0.003” depending on shaft size or the pitch of the thread.

3. Insert capscrew into hole

“B” provided these are the nearest matching holes for counter-clockwise rotation of adjusting nut,

MOTOR COUPLING

ROTATION

turn adjusting nut counterclockwise until holes “B” and “D” line up. This gives 1/20 of a turn

which is 0.004” on 12 tpi shaft or

0.005” on 10 tpi shaft.

4. Normal impeller clearance for the open impeller is

consider to be 0.015” for the first 10 ft of the column length and

Figure 13

0.010” additional clearance for each 10 ft of length thereafter. This can be reduced in some instances where is necessary, but should not be attempted without consulting the factory or factory serviceman if present.

INSTALLATION OF A SOLID SHAFT DRIVER NOTE: When pump is supplied with an oil lubricated

thrust pot, do not secure driver to discharge head until after the thrust pot and flexible coupling are installed. (See page 22 for thrust pot installation instruction.)

Do not work under a heavy suspended

object unless there is a positive support and safe guard which will protect personnel should a hoist or sling fail.

The coupling between the driveshaft and discharge head shaft may be a non-spacer type (see Figure 14), or a spacer type (see Figure 15). The latter is used on pumps furnished with a mechanical seal to permit servicing of the seal without removal of the driver.

1. Driver support. When a driver support is furnished

and not installed, proceed as follows.

A. Hoist driver support, inspect the mounting

surfaces, register and clean these surfaces thoroughly.

B. Install driver support on discharge head and

secure with capscrews provided.

2. Attach a sling to the lifting lugs of driver, hoist

motor, inspect the mounting surface, register, and shaft extension, and clean those surfaces thoroughly. If any burrs are found, remove burrs with a smooth mill file, cleaning thoroughly afterward.

3. Orient the motor conduit box in the required

WARNING

position. Align the motor mounting holes with the mating tapped holes on the discharge head. Lower the motor until the registers engage and the motor rests on the discharge head. Secure motor with capscrews provided.

4. On drivers having a non-reverse ratchet or pins, manually turn the driver shaft clockwise viewed from the top until the non-reverse ratchet or pins fully engage.

5. Lubricate motor bearings in accordance with instructions given on lubrication plate attached to the motor case.

NOTE: Please read and follow the motor manufacturer’s

instructions before lubricating the motor bearings. Too much lubricant can cause the bearings to overheat and prematurely fail.

The motor must not be tested for direction

of rotation when coupled to the pump. If pump should rotate in the wrong direction, serious damage to the pump and motor would result. Also serious injury to personnel could result.

6. Make temporary electrical connections according

to tagged leads or diagram attached to the motor. Motor must rotate counter-clockwise when viewed from the top. See arrow on pump name plate. If motor does not rotate counter-clockwise, you can change the rotation by interchanging any two leads (For three phase only, for single phase motors see motor manufacturer’s instructions.)

7. Motor shaft end play adjustment: if required,

motor shaft end play shall be checked with a dial indicator prior to connecting the pump coupling to the solid shaft motor. Consult the applicable motor manufacturer’s instruction manual for detailed information on motor shaft end play.

COUPLING INSTALLATION: (SEE FIGURES 14 and 15)

1. Check all mating face with a fine flat file before

installation. Remove all burrs from face.

2. Apply a thin film of oil on the pump key (730) and

insert key into headshaft keyway seat.

3. Gently lower pump hub of coupling (614) onto

headshaft.

4. Thread on the adjusting plate (613) onto the

headshaft until flush with top of the headshaft.

5. Clean driver shaft by removing all grease and burrs.

Try to fit the key on the driver hub (610) before installing it to the driver shaft.

Figure 14

Figure 15

6. Apply a thin film of oil to the driver key (730) and insert key into drive shaft keyway seat. Place the driver hub (610) onto the drive shaft and with key slide it up the drive shaft until the annular grove is exposed. Install split ring (722) in the groove and slide driver hub down over the split ring to capture it.

7. If the pump is supplied with an adjustable spacer coupling (see Figure 15), install spacer (612) between headshaft and driveshaft hubs. Secure with capscrews (759) and hex nuts (735).

IMPELLER ADJUSTMENT

Impeller adjustment is identical for all motors and right angle gear drives. Adjustment is accomplished by turning the adjusting plate (613). (See Figure 16 or 17). The correct adjustment is listed on the Outline Drawing for the specific unit. If the pump has a thrust pot, do not adjust the impeller position until the thrust pot has been installed and adjust the impeller position by using the adjust nut on the thrust pot.

NOTE: Mechanical seal, when provided, must not be

secured to the shaft prior to impeller adjustment. (open or enclosed type impellers). Shaft must move up or down within the seal Assembly.

For pumps handing liquids between –50º to 200º F, impeller adjustment can be made under ambient conditions. For liquids in excess of this range, it is recommended that impeller adjustment be made after the pump surface temperature has reached an equilibrium when charged with the pumpage. In those cases, where this is not feasible due to safety consideration or impossible due to external ice build up in cryogenic applications, refer to factory for specific instructions.

NOTE: When impellers are reset, the seal must also be

reset.

Figure 16

OPEN IMPELLERS

1. With the impellers touching the bottom of the bowls, turn the adjusting plate (613) towards the driver hub (610) or spacer (612) to obtain 0.015 inch clearance between the adjusting plate and driver hub or spacer for the first 10 feet of column. Add 0.010” for each additional 10 feet of column. See Figures 16 and 17. Note: The determination of

driver shaft end play can be critical and should be added to this setting. For larger pumps over 8”, this

amount may be too little; please refer to Outline Drawing.

Example: total pump length is 50 feet - set impellers

at 0.055 inch.

2. After impeller adjustment, align adjusting plate (613) with the pump hub (614), and tightly draw coupling flanges together with capscrews (759) and nuts (735). (See Figures 14 and 15.)

3. Check shaft run out with dial indicator. For mechanical seal installation, the run out should be

0.005" or less.

4. Set seal after impeller adjustment. Securely tighten all set screws in the collar. Remove the spacer between the gland plate and collar. Retain spacer for future resetting of seal.

Figure 17

ENCLOSED IMPELLERS

For enclosed impellers obtain the clearance between the adjusting plate and driver hub or spacer as specified on the outline drawing. See Figure 16 or 17.

INSTALLING THE GREASE LUBRICATED THRUST POT

This type of thrust pot and the motor stand are assembled on the discharge head by the factory. This thrust pot is designed to be used with NEMA Vertical C-face motors. The motor shaft and the pump shaft are to be coupled with flexible coupling.

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Xylem IMVIT R01 User Manual [en, es]

Specifications and Main Features

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User Manual