Pentair Aurora Edwards 150 User manual

Edwards Model 150 / 160 / 300

Pump Maintenance Manual

Contents

Safety

General Precautions . . . . . . . . . . . . . . iii

Warnings and Cautions. . . . . . . . . . . . iii

Warnings . . . . . . . . . . . . . . . . . . . . . . . . iii

Cautions . . . . . . . . . . . . . . . . . . . . . . . . . iv

1 General

Introduction . . . . . . . . . . . . . . . . . . . . 1-1

2 Maintenance

Consumable Materials. . . . . . . . . . . . 2-1

Lubrication . . . . . . . . . . . . . . . . . . . . . 2-2

Troubleshooting. . . . . . . . . . . . . . . . . 2-2

Removal . . . . . . . . . . . . . . . . . . . . . . . 2-3

Disassembly. . . . . . . . . . . . . . . . . . . . 2-4

General Practice . . . . . . . . . . . . . . . . . 2-4

Disassembly Procedure . . . . . . . . . . . . 2-4

Cleaning . . . . . . . . . . . . . . . . . . . . . . . 2-6

Inspection. . . . . . . . . . . . . . . . . . . . . . 2-7

Repair and Replacement. . . . . . . . . . 2-7

Assembly . . . . . . . . . . . . . . . . . . . . . . 2-8

General Practice . . . . . . . . . . . . . . . . . 2-8

Assembly Procedure . . . . . . . . . . . . . . 2-8

Replacement. . . . . . . . . . . . . . . . . . . 2-12

3 Installation

Inspection . . . . . . . . . . . . . . . . . . . . . .3-1

Unpacking . . . . . . . . . . . . . . . . . . . . . .3-1

Repacking . . . . . . . . . . . . . . . . . . . . . .3-1

Storage . . . . . . . . . . . . . . . . . . . . . . . .3-1

Installation. . . . . . . . . . . . . . . . . . . . . .3-2

Clean Pump . . . . . . . . . . . . . . . . . . . . . 3-2

Mount Pump. . . . . . . . . . . . . . . . . . . . . 3-2

Prepare Foundation . . . . . . . . . . . . . . . 3-4

Level Pump Skid . . . . . . . . . . . . . . . . . 3-5

Grout Pump Skid . . . . . . . . . . . . . . . . . 3-5

Check Driver Rotation. . . . . . . . . . . . . 3-6

Align Couplings . . . . . . . . . . . . . . . . . . 3-7

Piping . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Strainers . . . . . . . . . . . . . . . . . . . . . . . 3-10

Overpressure Protection . . . . . . . . . . 3-10

Pre-Startup Checks . . . . . . . . . . . . .3-11

4 Parts

Warranty

iii

Safety

General Precautions

The following are general safety precautions not related to any specific procedure. Per-

sonnel must understand and apply these precautions during both operation and main-

tenance of the pump.

Do Not Operate Pump Without Ear Protection. The pump has heat-treated steel

timing gears, which can be very noisy when operated above 900 rpm.

Be Aware of High Heat When Unit Is Running. Both operating and maintenance

personnel must observe all safety precautions at all times. To avoid injury, always de-

energize the input power sources and lock-out or red-tag the controller. Let the pump

cool before handling.

Be Aware of Chemical Hazards. Maintenance personnel must observe all safety pre-

cautions while working with the chemicals used in cleaning agents.

Warnings and Cautions

The following warnings and cautions relate to specific procedures in this manual. They

are repeated here for emphasis.

Warnings

Do not perform maintenance using this manual if the model number on the

pump is not 150-348 or the serial number is not ________________. Performing

maintenance using the wrong manual could result in pump failure or personal

injury.

To avoid injury, always de-energize the input driver and lock-out or red-tag the

controller. Let the pump cool before removing.

Overpressurization of the pump can cause equipment failure, resulting in per-

sonal injury.

Edwards Model 150-348 Pump

Cautions

Do not order parts using this manual if the model number on the pump is not

150-348 or the serial number is not ________________. Using parts ordered

from the wrong manual could result in pump failure or personal injury.

Do not hammer on pump endcase. This will cause gasket sealing surface dam-

age, resulting in leaks.

Use shaft protector between puller tip and shaft face to prevent distortion of

shaft center.

Never hammer directly on pump drive shaft. This will cause the rotor assem-

bly to become misaligned, resulting in incorrect internal clearances. Also,

hammering on the shaft ends may damage the shaft centers.

Never dip or soak packings, rubber, plastic, or teflon parts in “dry” cleaning

solvent. Wipe with clean, lint-free cloth. Solvent can react with material and

result in severe damage or destruction of parts.

Do not use excessive force when installing seals. This could damage the seals,

causing them to leak. Use approved tools available from Edwards.

Do not rotate rotor assemblies until bearings have been installed and adjusted.

Damage to rotors and liners may occur.

Make sure liners fit into counterbore on endcase, and that they can be fully

seated into the endcase counterbore without using excessive force. Damage to

endcases and liners could occur.

Support ends of shafts axially with a jaw puller on the endcase when install-

ing ball bearings to avoid damaging liners and rotors. The jaw puller should

be used on the shaft end opposite the end where the bearing is being installed.

Use a shaft protector to avoid damaging shaft center.

Do not overtighten bearing adjusting nut setscrews. Excessive bearing preload

may result, causing bearing damage.

Rotary pumps have close running clearances. Thus, clean piping is a must.

Dirt, grit, weld bead or scale, flushed from an unclean piping system, will

damage and may stall the pump. Flush the system thoroughly before connect-

ing piping to pump.

1-1

General 1

Introduction

The Edwards Model 150, Model 160 and Model 300 pumps (Figure 1-1) are standard-duty

high-speed gear-driven positive-displacement rotary pumps with gear-type rotors.

The pumps are self-priming. Edwards rotary pumps are available in many configurations.

While they may look alike, there may be significant differences from one pump to another.

Differences include construction material, sealing method, rotor type, etc .

Figur Figure 1-1. Edwards Model 150, Model 160 & Model 300 Pumps

2-1

Maintenance 2

Edwards rotary pumps are available in many configurations. While they may look alike,

there may be significant differences from one pump to another. Differences include con-

struction material, sealing method, rotor type, etc. This manual covers only one config-

uration, which is defined by a model number and a serial number. Check the name plate

on the pump to make certain the model number is 150-348 and the serial number is

________________. If the numbers do not match, contact Edwards - Pentair Water.

Most pump repairs can be performed by maintenance personnel using normally avail-

able tools.

Consumable Materials

Cleaning materials, lubricants, and other products needed during pump maintenance

are listed in Table 2-1.

Do not perform maintenance using this manual if the model number on the

pump is not 150-348 or the serial number is not ________________. Performing

maintenance using the wrong manual could result in pump failure or personal

injury.

Table 2-1. Consumable Materials

Item Nomenclature Specification Common Name

1 Lint-Free Cloth MIL-C-85043

2 “Dry” Cleaning Solvent Acetone, Brake

Cleaner

3 Emery Cloth 220 Grit 3M, Anderson,

Sandvik, Mirka

4 Anti-Seize Compound “Nev’r Seize”

5 Red Loctite PermaLoc HH-120

6 High-Tack Gasket Spray Loctite, Permatex

2-2

Model 150 / 160 / 300 Pumps

Lubrication

To ensure a long service life, the pump should be lubricated routinely with approved

grease (7, Table 2-1). If the pump is operating under normal loads and temperatures,

use the intervals defined in Table 2-2. If the pump is operating at over 180°F, contact

Edwards for recommended lubrication interval for your application.

Troubleshooting

Table 2-3 provides assistance in diagnosing and correcting malfunctions that may occur

during normal operation.

7 General Purpose Grease MIL-G-18709

NLGI #2

Chevron Ulti-Plex,

Shell Retina LC

8 Lapping Compound D51804, 180 Grit

Silicon Carbide

Felpro “Clover”

Brand

Table 2-2. Lubrication Schedule

Item Interval Amount of Grease

Bearings 4,000 Hours 0.54 Ounce

Timing Gears 4,000 Hours 2.16 Ounce

Table 2-3. Troubleshooting

Trouble Probable Cause Remedial Action

1. Pump does

not turn

1a. Seized pump. 1a. Repair or replace pump.

1b. Faulty or misaligned

coupling.

1b. Replace or realign

coupling.

1c. Damaged or missing

shaft key.

1c. Replace key.

2. Excessive

Noise

2a. Loose or misaligned

coupling.

2a. Tighten, align, or replace

coupling.

2b. Cavitation. 2b. Check suction piping with

a vacuum gauge. Gauge

should read less than 10-

in. Hg in most cases.

Contact E dwards for the

exact reading for your

application.

Table 2-1. Consumable Materials (Continued)

Item Nomenclature Specification Common Name

Zerk fittings do not

have check balls.

This prevents bear-

ings from being

over-greased.

Excess grease will

run out of the fit-

ting when pump is

in operation.

The pump has

heat-treated steel

timing gears,

which can be very

noisy when oper-

ated above 900

rpm. This is a nor-

mal condition, and

does not require

maintenance

action.

2-3

Maintenance

Removal

1. Before removing pump, refer to troubleshooting chart (Table 2-3) to determine if

the problem is actually the pump.

2. Ensure adequate clearance exists for removal of pump. Disassemble adjacent com-

ponents as required for adequate working clearance.

3. Before removal, clean exterior parts to remove accumulated dirt, grease, or foreign

material.

4. Apply tags to identify parts of similar configuration to ensure correct installation.

2c. Worn or damaged

bearing(s).

2c. Repair or replace pump.

3. Excessive

vibration

3a. Loose or misaligned

coupling.

3a. Tighten, align, or replace

coupling.

3b. Cavitation. 3b. Check suction piping with

a vacuum gauge. Gauge

should read less than 10-

in. Hg in most cases.

Contact Edwards for the

exact reading for your

application.

3c. Worn or damaged

bearing(s).

3c. Repair or replace pump.

4. Reduced flow 4a. Clogged suction screen. 4a. Clean or replace screen.

4b. Cavitation. 4b. Check suction piping with

a vacuum gauge. Gauge

should read less than 10-

in. Hg in m ost cases.

Contact Edw ards for the

exact reading for your

application.

4c. Pump liners and/or

rotors worn or damaged.

4c. Repair or replace pump.

4d. Low pump speed 4d. Increase pump speed.

To avoid injury, always de-energize the input driver and lock-out or red-tag the

controller. Let the pump cool before removing.

Table 2-3. Troubleshooting (Continued)

Trouble Probable Cause Remedial Action

This manual suits for next models

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