Att_8.2_MPB_Air_Handlers_O M.PDF

OPERATING MANUAL

NB20 Vapor Phase Carbon Adsorption Systems

For

SEVENSON ENVIRONMENTAL

Shallow Land Disposal Area- USACE FUSRAP Site

Vandergrift, PA

TIGG Corporation 1 Willow Ave

Oakdale, PA 15071 Ph: (724)703-3020 Fax: (724)703-3026

September 2010

Operating Manual for TIGG model NB-20 Vapor Phase Granular Carbon Adsorption System

TABLE OF CONTENTS

1.0 INTRODUCTION

2.0 SPECIFICATIONS

3.0 DESIGN

3.1 Application

3.2 Design Basis

4.0 GENERAL PROCESS DESCRIPTION

4.1 Mode of Operation

4.2 Effluent Sampling / Change out Determination

4.3 Excessive Moisture Accumulation

5.0 INSTALLATION

5.1 Unpacking

5.2 Rigging

5.3 Ducting and Peripheral Equipment

6.0 STARTUP PROCEDURES

6.1 System Start-up

6.2 Operation

6.3 Removing Spent Carbon

6.4 Refill of Fresh Carbon

7.0 TROUBLESHOOTING

7.1 General

7.2 High Pressure Drop in the Adsorber

7.2.1 Excessive Moisture Accumulation

7.2.2 Blinding of the Plenum

7.3 Poor Adsorption and Inefficient Carbon Usage

7.4 Reduced Air Flow

8.0 MAINTENANCE

9.0 MINIMUM SAFETY PRECAUTIONS

10.0 SPARE PARTS

ATTACHMENTS

System Equipment List & Drawings ............................................................................. Attachment A

Lifting Instructions ........................................................................................................ Attachment B

Fan Equipment Operation Manual ............................................................................... Attachment C

Motor Starters for 100 HP Units ................................................................................... Attachment D

Pleated Filter Panels & HEPA Filters ........................................................................... Attachment E

Operating Manual for TIGG Model NB-20

1.0 INTRODUCTION

The following sections discuss the specifications, design basis and recommended operating procedures for multiple (16) TIGG Model NB-20 vapor phase granular carbon adsorption systems.

2.0 SPECIFICATIONS

Vessel Nomenclature TIGG Model NB-20

Interior Width 86 in Interior Length 352 in Inside Height 92 in Top Access (6) 18 x 36 “ Openings Side Access (1) 30 x 86 “ Doors Maximum Operating Pressure 14 in H2O Maximum Operating Temperature 140 deg F Material of Construction Carbon Steel Lining High Solids Epoxy Exterior Paint Acrylic Waterborne Primer and Enamel Approximate Weight 15,000 lbs Empty; 35,000 lbs Full

3.0 DESIGN

3.1 Application

The vapor phase activated carbon unit is designed for the adsorption of VOC’s and other contaminants from a waste management building air exhaust stream.

3.2 Design Basis

The design basis for this operation is as follows:

Influent Type Vapor with low relative humidity Flow Rate 12,500 cfm per adsorber Temperature <140 o F

Outlet Pressure Ambient Carbon Fill 20,000 lbs./unit, 320,000 lbs. total Contact Time ~3.5 sec @ flow & fill

3.3 Air Volume

The air volume for the Structure is calculated using the building dimensions l x w x

h. The volume of the building was calculated to be 2.55 million cubic feet. Four blowers @ 50,000 cfm capacity each are provided as specified. Thus, the air exchange rate, the number of air changes per hour, @ 200,000 cfm is 4.7.

Sixteen TIGG NB-20 units are provided with air flow @ 12,500 cfm/unit which is well within a unit’s capacity of 20,000 cfm.

4.0 GENERAL PROCESS DESCRIPTION

4.1 Mode of Operation

The NB-20 utilizes a horizontal bed of TIGG 5C 0410 reactivated vapor phase granular activated carbon for the adsorption of organic compounds. Influent vapor will enter the NB-20 through two 20” OD duct fittings on one end of the unit. The vapors will then be distributed throughout the plenum chamber in the bottom of the unit. A support structure of stainless steel is installed horizontally on the top of the plenum to support a minimum 3 foot deep carbon bed. Influent vapors will flow from the bottom of the NB-20, up through the carbon bed and into the headspace of the unit. Treated vapor will exit the unit through two, 20” OD duct fittings in the top of the NB-20. These vapors will be discharged through two stacks provided by TIGG Corporation.

4.2 Effluent Sampling / Change out Determination

The NB-20 units are provided with sample ports in the carbon bed at preset points representing 1/3 of the bed depth. Sample ports are also provided above and below the carbon bed to provide influent and effluent sampling points. It is not the intent of this section to describe a specific method of sampling or whether sampling is required. This is at the discretion of the operator.

NOTE: Not all NB20 rental units contain sample ports.

4.3 Excessive Moisture Accumulation

If excessive moisture is present in process vapors, liquid may accumulate within the open bottom portion of the unit. Four ¾” drain plugs are located at the four corners of the unit floor. The drain plugs can be removed from the bottom side of the NB-20. Note – removal of a drain plug may expose personnel to untreated process vapor and may result in spillage of contaminated liquid. Use appropriate personnel protection and dispose of any liquids in accordance with local regulations.

5.0 INSTALLATION

5.1 Unpacking

When the NB-20 is delivered to the site, it should be checked thoroughly to ensure all required items have been received and the equipment is free of any shipping damage prior to signing the bill of lading.

5.2 Rigging

The NB-20 units will be shipped to the jobsite with the full initial charge of carbon. The combined, loaded weight of the equipment will be 35,000 lbs. The unit is fitted with lifting lugs on the four corners. The unit should only be rigged by qualified personnel using proper rigging and techniques. The unit does not need to be installed on a concrete surface, a solid packed gravel or dirt surface will suffice.

5.3 Ducting and Peripheral Equipment

In addition to the adsorbers, the system includes four building outlet plenums. At the front end of the plenums is a filter grid that contains a total of twenty-four, 2’ x 2’ square filter sets. Each filter set consists of a 2” deep pleated panel prefilter followed by a 11.5” deep, 99.97% efficient HEPA filter. Attached to each plenum is a Magnehelic differential pressure gage for monitoring the pressure drop across the filter grid.

Attached to each of the plenums is a high pressure fan unit. The fan skids also contain the combination reduced motor voltage starter and power disconnect switch.

The fan specifications (see spec sheet in Appendix) are:

Fan Capacity 50,000 CFM Fan Static Pressure 8.5 in-wg Fan MOC Steel Fan Motor 100 HP, TEFC, 3/60/460 Fan Controls – Soft NEMA 3R, Start/Stop PB, Disconnect,

6.0 STARTUP PROCEDURES

6.1 System start-up

The following items need to be completed before starting up the system. It is assumed that all equipment has been properly installed and that the ducting is installed and power has been terminated at the starter panels.

1. Inspect all inlet louvers to ensure that they are clear of all obstructions and that the mechanism operates freely.

2. Install air filter elements in the filter housing. Close and seal all access doors.

3. The adsorber will come loaded with carbon, check the carbon bed and level if required.

4. Examine the duct work to ensure that it has been installed correctly.

5. Make sure all sample valves, doors and hatches are closed on the adsorbers.

6. Open inlet vane damper on fan inlet.

7. Start fan and check for air flow.

8. Adjust damper, open or closed, to desired air flow.

6.2 Operation

1. Initially record the pressure drop across the filter section by reading the magnehelic gage on the side wall of the filter section. Initial differential pressures should be in the

1.55 - 1.75 “ w.c. range.

2. Check differential pressure daily and record the numbers. Once the differential pressure reaches 2.5 - 3.0”, a filter change should occur. Initially, change the prefilters and restart the system. If the differential pressure drops close to the starting dP then continue operation with the new prefilters only. If the pressure drop continues above the recommended starting pressures, change out the second row of filters

(HEPA).

3. On a daily basis, please listen for the fan and it’s operation and please note and strange sounds coming from this equipment, then contact TIGG Corporation with this information.

6.3 Removing Spent Carbon

Spent carbon may be removed by using a vacuum source, generally supplied by a vac-truck. Upon arrival of the truck, the following steps should be taken:

1. Open the top hatches, the side door should remain closed at this time.

2. The vacuum source is generally connected by hose to a section of plastic pipe, which is inserted into one of the openings on the unit. Any metal fittings should be protected from the plenum and sides of the unit to prevent damage.

3. Move the pipe around as the carbon level is lowered. The adsorber may require entry to remove any residual amounts of spent carbon. Follow appropriate OSHA confined space entry procedures to prevent worker injury. Spent carbon vacuumed from the adsorber is typically disposed of with other waste residuals generated at the site. At this site, the spent carbon will be collected for recycle at a licensed regeneration facility. The spent carbon should be collected in super sacks from the vacuum truck for proper transport. Once the superacks are filled and sealed, they are loaded on a flat bed trailer for transport to the regeneration facility.

The regeneration facility employs a rotary kiln operated at 1800

F to destroy adsorbed organics on the carbon.

4. If the adsorber is being emptied for return, reattach the access covers and prepare the unit for loading onto the truck. If the unit is being refilled with carbon for continued use, please continue with steps 5 & 6.

5. Thoroughly inspect the interior lining and plenum material for damage once all of the spent carbon has been removed.

6. If the interior lining is undamaged and the plenum material is intact, the unit may be refilled in accordance with Section 6.4.

6.4 Refill of Fresh Carbon

NOTE: FOLLOW ALL LOCAL SAFETY REGULATIONS

WHEN WORKING ON OR NEAR THE ADSORBERS.

Fresh carbon will arrive on one truck, in super sacks for the refill of the NB-20. Upon arrival of the truck, the following steps should be taken:

1. Remove the top hatches by loosening four clamps on each hatch and placing each hatch to the side.

2. Inspect the interior of the adsorber to ensure that there is no shipping damage to the plenum.

3. Prepare to load through hatch number 1.

4. Suspend a super sack above the hatch.

5. Lower the super sack as close to one side of the hatch as possible and empty.

6. Load 2 super sacks through the hatch. The carbon will have formed a cone shaped pile which could have an angle of repose between 20 and 30 degrees.

7. Push the carbon toward the sides and ends of the adsorber in an attempt to level it.

8. Move to the next hatch and empty a super sack into the hatch.

9. Continue until carbon is within 1 - 2 feet of the opening, approximately two (2) super sacks.

10. Repeat Step 7.

11. Repeat Steps 4 through 7 for hatch number 3.

12. Repeat Steps 4 through 7 for hatch number 4.

13. Repeat Steps 4 through 7 for hatch number 5.

14. Level carbon throughout the entire bed by using a steel (or aluminum) straight head rake and push/pull the carbon toward and away from the ends of the adsorber until level. Be careful to prevent damage of the high solids epoxy liner while raking the carbon.

15. Close the top hatches by reversing Steps 1 and 2. Note: Do not tighten the access clamps more than 2 complete turns from first resistance.

The actual depth of the carbon bed is a function of the packing density. For 20,000 lbs. of carbon the depth may vary as much as four (4) to five (5) inches. This variation will not affect the adsorption performance.

For a (20,000 pound) dense packing with an apparent density (AD) of 27 lbs/ft3 the bed height is approximately 30”. If the carbon bed is loosely packed, or 90% of AD, the bed height is 3 feet.

7.0 TROUBLESHOOTING

This section is intended to identify a portion of the more common problems which may be encountered during the operation of a granular activated carbon system. The following “cause and effect” discussion is not intended to be all inclusive since situations and circumstances will vary with each individual system by virtue of design, operating philosophy, etc. Therefore, this section should only be considered as a guideline for troubleshooting.

7.1 General

The problems which arise generally fall under the following categories:

• High pressure drop

• Poor adsorption and inefficient carbon usage

• Reduced air flow

7.2 High Pressure Drop in the Adsorber

High pressure drop in the adsorber can be caused by:

1. Excessive moisture accumulation in the plenum, and/or

2. Blinding of the plenum by particulates.

7.2.1 Excessive Moisture Accumulation

As discussed in Section 4.3, if excessive moisture is present in process vapors, liquid may accumulate within the open bottom portion of the unit. Excessive moisture accumulation may restrict or completely block portions of the inlet duct connection and the open space beneath the plenum. Either restriction or blockage will increase inlet velocities and pressure drop through the unit. Excessive moisture accumulation may be avoided by periodically inspecting the drain plugs and interior of the unit.

7.2.2 Blinding of the Plenum

The plenum is constructed of stainless steel support plate. If the influent vapor contains an excessive amount of particulates, the particulates may build up on the underside of the plate, causing a restriction of the open area and an increase in pressure drop. If excessive blinding occurs within the unit, an upstream filter may be installed to remove the particulates prior to the adsorption unit.

7.3 Poor Adsorption and Inefficient Carbon Usage

Poor adsorption and/or inefficient carbon usage may be caused/remedied by the following:

1. Channeling – Level the carbon bed.

2. Carbon saturation - Change the carbon.

3. Increase in effluent concentration - Compare influent analyses.

4. Change in types of contaminants in the influent - Compare influent analyses.

5. Presence of non-adsorbable organics - Compare influent analyses.

7.4 Reduced Air Flow

Reduced air flow through the system can be caused by the following:

1. Blinding of the plenum.

2. Dirty pre-filters

3. Debris in the duct.

8.0 MAINTENANCE

8.1 Adsorber

The NB-20 Adsorber is designed to require minimal maintenance. The following items should be inspected and maintained as noted:

1. Internal inspection of the lining and plenum should be performed each time carbon is removed.

2. Inspect all attachment hardware (sliding hinges, safety catches and clamps) for damage.

3. Grease door hinges once every three (3) months.

4. Grease sliding fittings on doors (plates and brackets on hinge side) once every three months.

5. Grease turnbuckles ( if applicable) once every three months.

6. Inspect all mechanical parts before and after carbon fill/replacement for signs of wear or damage. Repair or replace any excessively worn or damaged mechanical parts (hinges, chains, turnbuckles, clamps, etc.) immediately to prevent worker injury.

7. Inlet pressure should be checked periodically to insure proper operation.

8. Process connections should be periodically inspected for signs of wear and/or leakage.

8.2 Fan & Filter

• Make sure fans are not operating when performing maintenance on the air handling system.

• Open drain in fan housing to remove any condensation.

• Inspect pre-filters and replace if necessary

• Perform fan maintenance per attached Fan Operation Manual.-

9.0 MINIMUM SAFETY PRECAUTIONS

All electrical, mechanical and rotating machinery constitute a potential hazard, particularly for those not familiar with the design, construction and operation. Accordingly, adequate safeguards (including use of protective equipment when necessary) should be taken with this equipment to safeguard the public (including minors) from injury and to prevent damage to the equipment, the associated system and the premises.

The operation, maintenance and repair of this equipment should be undertaken only by personnel qualified to do so. All such personnel should be thoroughly familiar with the equipment, the associated system and controls, and the procedures set forth in this manual.

Proper care, procedures and tools must be used in handling, lifting, installing, operating, maintaining and repairing this equipment to prevent personal injury and/or property damage.

ACTIVATED CARBON CAN REDUCE OXYGEN LEVELS IN CONFINED SPACES. USE

LOW OXYGEN SAFETY PROCEDURES WHEN ENTERING ADSORBER VESSELS

CONTAINING CARBON, OR FROM WHICH CARBON HAS BEEN REMOVED.

Contaminated water may contain chemicals or biological contaminants which could be harmful if exposed to the skin, inhaled or ingested. Accordingly, personnel who may be exposed directly to the mists produced by water jets or compressed air should wear appropriate OSHA protective equipment.

10.0 SPARE PARTS

The NB-20 adsorber does not require much in the way of spare parts. If, however, the unit does require replacement parts or maintenance, please contact TIGG Corporation at

(800) 925-0011 for service.

ATTACHMENTS

SYSTEM EQUIPMENT LIST & DRAWINGS

VAPOR CONTAINMENT STRUCTURE

LIFTING INSTRUCTIONS

08/17/00

NIXTOX BOX – LIFTING INSTRUCTIONS

(NB10 AND NB20)

CARBON STEEL HIGH FLOW VAPOR ADSORBER

MODEL

MAX

FLOW

(CFM)

PRESS

(PSIG)

TEMP

(deg F)

Inlet/ Outlet

L X W X H (FT) EMPTY BOX

Weight

(lbs)

STANDARD

ADSORBENT FILL

(LBS)

SHIPPING

WEIGHT -

STANDARD

FILL (LBS)

NB-10 10000 AMB 130 20 264 X 94 X112 9000 12000 21000

NB-20 20000 AMB 130 20 360 X 94 X 112 15000 20000 35000

NOTES:

1) Do not exceed maximum flow conditions listed.

2) Dry virgin activated or reactivated carbon provided as standard adsorbent.

3) Standard adsorbent fill is based on a bed density of 29 lb/ft3.

4) Standard adsorbent fill can differ based on variable bed density and alternate adsorbents.

The NB-10 and NB-20 high flow vapor adsorbers are intended to be lifted using a crane. When lifting the unit by a crane, install a 1-5/8” shackle in each of the four lifting lugs. Contact a rigging contractor for sizing of the crane and proper design of the lift.

P.O. Box 11661 Pittsburgh, PA 15228 (412)257-9580 (412)257-8520 (facsimile) www.tigg.com information@tigg.com

FAN OPERATION MANUAL

SIDE VIEW

TOP VIEW

November 19, 2010

REV. 00

FAN SUBMITTAL DATA

IDENTIFICATION

CUSTOMER PITTSBURGH AIR SYS. P.O. NO. 21005035MS-1

IAP NO. 10314-1 DRAWING NO. B-11400-1

SPECIAL TAGGING ALL QUANTITY 4

FAN MODEL

FAN TYPE B SIZE 445

ARRANGEMENT 4 CLASS/DESIGN 3

ROTATION CW DISCHARGE 270°

WEIGHT (LESS MTR) 2123 LBS MOTOR WEIGHT 1850 LBS

MOTOR

ENCLOSURE TEFC MOUNTED BY IAP SUPPLIED BY IAP

HP 100 RPM 1200 FRAME 444T

VOLTAGE 230/460 PHASE 3 HERTZ 60

DUTY STD EFFICIENCY STD S.F. 1.15

SPECIAL ACCESORY STD EPACT

MATERIALS OF CONSTRUCTION

SHAFT MATERIAL N/A PEDESTAL MATERIAL 3/8 (A-36)

SHAFT DIA. @ WHEEL Ø 3 3/8 HOUSING MATERIAL 7 GA (A-36)

SHAFT DIA. @ BRG. N/A IMPELLER MATERIAL A-572

FINISH

PAINT SPEC: EX-20-GY AS-10-GY

PERFORMANCE

50,000 CFM @ 8.5 S.P., 1,180 RPM, 92.80 BHP @ .075 DENSITY, TEMP 70°F

MAX DESIGN TEMP.: 100°F

Engineering

INDEX

I. BEFORE FAN INSTALLATION

A. Receiving and Inspection 1 B. Lifting and Moving Fans 1 C. Storage on Jobsite and Shutdowns 1 D. Maintenance During Storage 1

II. INSTALLATION PROCEDURE

A. FOUNDATIONS 2

B. FANS BEFORE DRIVE SYSTEM 2

Factory assembled small fans 2 Disassembled large fans 2

C. ASSEMBLY SEQUENCE

1. Housing to Foundation 2

2. Bearing Pedestals 2

3. Lower Half of Bearings 2

4. Shaft to Bearings 3

5. Wheel and Shaft 3

6. Additional Housing Sections 4

III. ADDITIONAL INSTALLATION DATA

A. DUCTS 4

B. DRIVE MECHANISMS 4

C. ELECTRIC SWITCHES 4

D. PIPES and TUBES FOR WATER SUPPLY 4

E. INSULATION 4

IV. TEST-RUN CHECKLIST 4-5

V. 8 HOUR TEST-RUN 5

VI. AFTER TEST-RUN CHECKLIST 5

VII. SECURING MOVING PARTS 5

VIII. VIBRATION TROUBLESHOOTING 5-7

IX. BEARING ASSEMBLIES 8

X. MAINTENANCE

A. Inspection Schedules 9 B. Clean Fan Wheels 9 C. Lubrication and/or Inspection 9

1. Grease Lubricated Ball or Roller Bearings 9

2. Oil Lubricated Ball or Roller Bearings 9

3. Oil Lubricated Ball or Roller Bearings 9

D. MISCELLANEOUS LUBRICATION 9

E. MAINTENANCE DURING STORAGE, SHUTDOWNS 1

WARRANTY 9

THE MANY USES OF THIS MANUAL

1. FAN INSTALLATION. Information is in a checklist form to facilitate the best, fast and safest installation possible. Most fans and blowers are factory assembled and only need to be attached to a level foundation.

Assembly information required for large fans to be assembled in the field is also included. This data will be color coded like this paragraph, and can be disregarded when installing a factory assembled fan. However, this data could help maintenance personnel when a fan is disassembled.

2. PRE-INSTALLED REQUIREMENTS. Installers and management can plan for required personnel, lifting equipment, tools, time, maintenance, etc.

3. MAINTENANCE AND TROUBLESHOOTING

AFTER INSTALLATION.

4. SAFETY INFORMATION FOR PERSONNEL AND

EQUIPMENT. General hazards have been pin-pointed, but for additional information refer to the booklet

RECOMMENDED SAFETY PRACTICES FOR AIR

MOVING DEVICES, printed by AMCA at 30 W.

University Drive, Arlington Heights, IL 60004.

5. BOXES are provided for checklisting data pertaining to your installation, i.e., bearings, maintenance, etc.

Hopefully, this manual will answer questions and solve problems…immediately. Most of all, we want our customers satisfied with a perfect fan installation.

I BEFORE FAN INSTALLATION

A. RECEIVING AND INSPECTION OF ALL FANS

AND BLOWERS.

Look for signs of misuse during transit.

Rotate shaft of factory assembled units…it should move easily.

Inspect for damage to shaft, bearings, couplings, housing, finish.

Inspect packing list.

If any damage or shortage…

Mark accordingly on freight bill, and notify the carrier for an inspection.

Notify IAP, Inc.

B. LIFTING AND MOVING FANS AND

COMPONENTS BECOMES THE USER’S

RESPONSIBILITY. CURRENT SAFETY

STANDARDS SHOULD BE FOLLOWED AND

SUPERVISED BY PERSONNEL EXPERIENCED

IN MOVING HEAVY EQUIPMENT. DO NOT

LIFT COMPLETE FANS BY LIFTING RING ON

MOTOR.

Factory assembled units and housings should be lifted by the housing lifting lugs provided or by pallets if furnished (see erection drawing).

Unassembled units should be lifted by slings using spreaders and padding.

Whenever possible shaft assemblies should be lifted at areas that avoid any contact with the wheel, bearing seats or coupling.

C. STORAGE ON JOBSITE (plus shutdowns).

SHORT TERM (less than 30 days)

Store in clean, dry location.

Cover equipment fro protection from moisture and dust.

Keep covered when moving to prevent condensation.

LONG TERM STORAGE (over 60 days). Same as short term storage PLUS…

Suspend silica gel bags in outlets and inlets.

Fill bearings to capacity for protection.

Coat machined surfaces with grease.

Cover inlets and outlets with lids.

Enclose entire fan with plastic or tarp.

D. MAINTENANCE DURING STORAGE (long and short term periods)

TURN SHAFT EVERY TWO WEEKS. This prevents a permanent “set” of bearings. This false brinelling causes vibration to be transmitted thru the bearing and eventual failure.

RUN FAN FOR 15 MINUTES EVERY TWO

WEEKS if possible.

Remove silica bags before starting.

Be sure that bearings are lubricated and aligned.

Replace silica bags after operating fan.

CENTRIFUGAL

FANS, BLOWERS

INSTALLATION

MANUAL

MANUAL M 10-1

4. Shaft to bearings… Assembly, leveling, alignment. If possible, it is easier to align the shaft without the wheel. Align and level as indicated below, remove the shaft and proceed with the Wheel and Shaft Assembly. Clean and oil bearing surfaces as outlined in Wheel and Shaft Assembly.

For All Arrangements 1 thru 9 (sleeve bearings) Install oil rings on shaft and tighten securely.

Position thrust collars of fixed bearings. Do not tighten.

Lower shaft/wheel assembly on bottom halves of bearings. Be certain that parts align before too much weight is applied. MISALIGNMENT

WILL DAMAGE LINERS, BEARINGS AND

COLLARS.

Loosely assemble bearing caps.

Leveling shaft for Arrangement No. 1 Fans when assembled in the field.

Level between bearings. Shim as required.

Securely tighten holddown bolts on lower half of bearings.

Arrangement No. 3 Fans – Alignment, Leveling Shaft

SWDI Wheel is not centered between the bearings.

Level and align the drive end of the shaft with the fixed bearing first.

Next, align and level the opposite end of shaft with the floating bearing. Shim bearing and pedestal to assure level contact between bearing surfaces.

Secure all hold down bolts and nuts on pedestals and bearings.

Drive mechanisms shaft should then be leveled and aligned to the secured fan shaft.

When applicable, auxiliary drives should be aligned and secured last.

DWDI Wheel is centered between the bearings Simultaneously, align and level both bearings.

Levels placed on both ends of the shaft will have the same reading when the fan shaft deflection has been equally divided between the bearings. Bearing surfaces should have level contact.

Secure all hold down bolts and nuts on pedestals and bearings.

5. Wheel and shaft assembly…refer to erection drawing for specific details. Listed below is general information for large wheels and shafts.

Clean shaft and wheel bore with soft cloth. Crocus cloth (not emery cloth) should remove any corrosion.

Add oil to cleaned areas. Use Molycote G or linseed oil with white lead.

Remove keys.

Place protective coverings over shaft seals and bearing seats to avoid scratching or burring of these surfaces If wheel is to be placed on floor, provide adequate bracing and protection from abrasion. Maintaining the factory balanced accuracy is important. DO

NOT ROLL WHEELS OR LIFT BY BLADES.

Refer to Erection Drawing

Notice direction of wheel blades and rotation Insert shaft thru wheel hub, tighten wheel set screws only enough to hold it on the shaft.

Add inlet cones over shaft ends and tie to the wheel with soft nylon straps. Inlet cones should be inserted into the wheel. These units are temporarily strapped so that the entire shaft and wheel assembly can be lifted into the housing without parts flopping and falling. DO NOT

OVERTIGHTEN STRAPS. AVOID ANY

DISTORTION TO THE WHEELS, CONES

AND VANES. Note: Vanes and screens will not fit over a factory installed coupling. When used between a coupling and wheel, they should be slipped over the shaft before the wheel is installed.

Refer to bearing lubricating instructions on Pg. 8, and lubricate all bearing surfaces on the shaft with specified grease or oil.

Using nylon straps, slings and spreader, lift the shaft with wheel assembly into position in the housing, but suspend it slightly above the lower halves of the bearings. NOTE: SHAFT SEAL

AREAS SHOULD NOT BE USED FOR

LIFTING PROTECT BEARING SURFACES.

Clean and assemble bearings. Refer to the erection drawing and Pg. 7.

BEFORE OPERATING FAN, ALL DUCTS

MUST BE CONNECTED AND ACCESS

SECTIONS SECURELY CLOSED.

CHECK FOR MOISTURE IN SILICA GEL

BAGS. Replace as required.

II. INSTALLATION PROCEDURE

A. FOUNDATIONS

Foundations must be strong and rigid enough to absorb the normal vibration and other live load such as wind, etc. Level foundations and bearing pedestals are essential. Distorted or twisted housings can cause misalignment and rubbing of running parts. Locations of anchor bolts are shown on foundation drawings furnished in the Installation Binder.

Small fans are usually bolted to a rigid metal frame or directly to a machine or building structure. Allow for additional reinforcement such as stiffeners and braces.

Larger fans are best mounted on reinforcement concrete slabs.

Mass of concrete should be at least 3 times the weight of the fan and drive mechanisms.

Normally the floor plan area of concrete should be no larger than 2 times the plan area of the fan and drive mechanisms or the slab might be too thin.

Often it is desirable to have a larger slab floor plan area to resist wind and the rocking mode of vibration; if so, the depth of the slab should be increased proportionately.

Example of determining a slab size. A fan weights 3,400 pounds. The mass of concrete should be no less than 10,200 pounds (3 x weight).

If dried concrete weighs 140 pounds per cubic foot, a minimum of 73 cubic feet of concrete is required (73 ÷ 27 = 2.7 cubic yards) If the floor plan of the fan is

60” x 45” =2700” = 18.75 square feet 144”

If the slab is 72” x 57” = 4105” = 28.5 square feet 144”

If the minimum of 73 cubic feet of concrete is used, the slab will be 2.5 feet thick (73 ÷ 28.5 = 2.5 feet thick).

B. INSTALL THE FAN BEFORE THE DRIVE

SYSEM if possible.

Generally, the drive is easiest to align and adjust.

Factory assembled fans with motors only require bolting to a level foundation. Initial alignment and lubrication have been completed at the factory.

Arrangements nos. 3 and 1 require alignment of remote drive and belts (refer to section III B)

Large fans shipped disassembled must be completed in accordance with erection prints furnished in the Installation Binder for each fan.

NOTE: SAFETY STANDARDS AND CODES

MUST BE OBSERVED: Refer to the Occupational Safety and Health Act, plus your State and Local Codes. The use of correct equipment and handling techniques is imperative.

Match marks and/or other identification marks are provided on all major mating parts to be assembled.

Corresponding marks appear on the Erection Prints.

Generally, large fans are Arrangement no. 3 with two independent pedestals to support the shaft.

C. USUALLY THE ASSEMBLY SEQUENCE IS AS

FOLLOWS:

1. Bottom section of housing is placed over the anchor bolts located in the level foundation. Shim to level housing. Do not tighten nuts.

2. Bearing pedestals are loosely positioned over anchor bolts.

3. Lower half of bearings are placed on pedestals using full shims. Add bolts, but do not tighten. Wait until shaft assembly is ready to install before cleaning and lubricating.

Alternative Methods. Above is a wood jig for positioning anchor bolts. At left, wide flange I-beams or channels embedded in concrete is often a good alternative. Bolts are on the outer sides and holes can be drilled during installation.

6. ADDITIONAL HOUSING SECTIONS

EXCEPT THE WHEEL ACCESS SECTION are loosely bolted in place.

If inlet cones are utilized, unstrap them from the wheel and locate them as indicated in the erection drawing.

Turn the wheel by hand and inspect for rubbing and alignment problems.

Check the distance between the wheel rim and the inlet cone. Running clearance should be consistent and agree with the erection drawings.

Before closing the housing with the wheel access section…

Tighten all bolts and nuts.

Inspect interior areas for lubrication.

REMOVE ALL TOOLS AND DEBRIS.

7. ADD WHEEL ACCESS SECTION

Tighten all bolts, nuts and accessories to the torque recommended in the erection drawing.

III ADDITIONAL INSTALLATION INFORMATION

A. DUCTS Fans are only as efficient as their duct systems.

Ducts should be the correct length. Pushed or pulled connections can distort the housing and misalign the inlet cones so it rubs against the wheel.

Expansion joints are required when thermal expansion is a factor, and when the fan is mounted on a vibration base.

Flexible connections should be used under these conditions:

Handling hot air or gases.

Vibration isolator bases are used for mounting fan.

Inspect all duct connections for leakage.

REMOVE ALL TOOLS AND DEBRIS FROM

DUCTS.

B. DRIVE MECHANISMS

Belt Drives. Arrangement No. 1 fans have the motor located in one of the four positions illustrated. Positions W and Z are preferred for two reasons: (1) Motor bases are usually smaller, (2) belt guards are easier to install and maintain.

V-belt sheaves – mount as close to the bearing as possible. Overhang and bearing load will be at the minimum.

Fan sheaves and motor sheaves should be aligned.

Shafts of fan and motor must be parallel.

V-belts must be tensioned according to the manufacturer’s specifications. Often belts are labeled; if not refer to the package or catalog.

WARNING: BELT GUARDS AND SHAFT

GUARDS MUST BE INSTALLED BEFORE THE

FAN IS STARTED

Direct Drives. Align with fan shaft. Direct drive couplings are usually one of the three types; gear, pin or grid type. Refer to the manufacturer’s mounting and alignment instructions.

On large equipment, notice expansion compensation information.

When dynamically balanced couplings are used each part must be assembled exactly as it was at the factory. To avoid vibration, each part must be aligned and utilized the same nut, bolt, washer.

C. ELECTRIC SWITCHES

When connected to the main power box, be sure the circuit is labeled correctly.

A local, fast disconnect switch near the fan should be required FOR THE SAFETY OF THE

PERSONNEL AND EQUIPMENT.

In an emergency, power can be disconnected immediately.

Maintenance personnel can easily shut off power without the fear of someone flipping switches on the other side of the plant.

Red tape over a closed switch is a good safety precaution. Other methods include red or orange tags on equipment or circuits that are shut down.

Shut down labels should be used on valves for water, air, steam, hot air ducts…and anything else that is potentially dangerous.

D. PIPES AND TUBING for water supply should not be connected to housing due to vibration problems.

E. INSULATION – Check the latest codes….local, state and federal (Occupational Safety and Health Act.)

IV TEST-RUN CHECKLIST

Preventive precautions at this stage can insure greater safety of personnel and equipment, maximum performance and a long fan life.

WARNING! TURN POWER SWITCH TO “OFF”

AND RED TAPE IT SO THAT IT WILL NOT BE

TURNED ON INADVERTENTLY. NEVER WORK

ON A FAN WITH THE POWER ON. TAKE ALL

PRECAUTIONS TO BE SURE THAT POWER

WILL NTO BE TURNED ON WHEN THE FAN IS

DISASSEMBLED AND BEING WORKED ON.

WARNING! CHECK ALL DUCT CONNECTIONS.

NEVER OPERATE FANS WITHOUT DUCTS:

SURROUNDING OBJECTS INCLUDING

PERSONNEL, CLOTHING, DEBRIS, ETC. CAN BE

SUCKED IN AND BLOWN OUT AT A DANGEROUS

VELOCITY. WITHOUT DUCTS MORE AIR WILL

BE HANDLED THAN INTENDED FOR THE FAN

AND MOTOR WILL BURN OUT.

Check tightness of foundation bolts.

Open wheel access section.

Check bearing mounting bolts for tightness.

Check bearing locking collars, seals, etc.

Check keys, locking screws, couplings, etc. on wheel rotor section. Reposition and secure as necessary.

Hand-turn the wheel if possible for checking clearance between inlets and the wheel.

Test water supply and connections if applicable.

Test the operation of any dampers or vanes. Leave them in the closed position and the starting load on the motor will be reduced. Be sure that working parts are lubricated.

Check screens and any other internal parts for position and tightness. Secure as required.

Replace wheel access section after removing all tools debris and foreign objects from the interior section of the fan.

Check the exterior section of the fan. Tighten all bolts, etc. as required. CLOSE ALL ACCESS

SECTIONS.

Fan should be ready for the test run. IF THERE IS

ANY DOUBT ABOUT THE FAN’S ABILITY TO

OPERATE SAFELY AND CORRECTLY.

CONTACT IAP, Inc. FACTORY BEFORE

OPERATION.

Turn on power only after completing the checklist above.

Start fan with a short interval of “on-off”. Listen for any rubbing parts.

If everything appears to be correct, turn on the fan again until it reaches full speed. If excessive vibration occurs, shut off fan immediately and refer to pages 5 and 6.

NOTE: NEVER OPERATE A FAN FASTER

THAN THE MAXIMUM SPEED INDICATED

ON ERECTION DRAWINGS

V TEST RUN FOR 8 HOURS CHECKING

BEARINGS ONCE AN HOUR

Checking bearing heat. New bearings and relubricated bearings will be slightly warmer than usual during the first hour, and then cool to normal temperatures. Check bearings and lubrication data on Pgs. 7, 8. If a bare hand can remain on the bearing for several seconds, normally it should be in range of the safe operating temperatures.

Check for grease leakage from bearings.

Initially, some excess grease might appear.

Check for signs of other oil leakage.

Look at bearing oil rings. They should be moving and appear oily.

Refer to vibration data on pages 5 and 6 if necessary Upon completion of a successful 8 hour test-run, the fan should be added to you maintenance schedule.

Refer to page 8.

VI AFTER THE 8 HOUR TEST-RUN CHECKLIST

WITH POWER SWITCH “OFF” AND RED TAPED

OR TAGGED, CHECK AS FOLLOWS:

Check lubricant levels and contamination.

Assembly and mounting bolts for tightness.

V-belts for tension.

VII SECURING MOVING PARTS

Often it is desirable to secure bearings, but be sure that the fan has been in operation for at least 6 weeks.

Foundations and other structures often settle and shift.

Be certain that bearings and other movable parts are precisely located before tack welding or doweling.

VIII VIBRATION TROUBLESHOOTING

IF EXCESSIVE VIBRATION OCCURS

First, open and close dampers and inlet vanes. When fully closed, the fan is unable to discharge air, and turbulence can occur. Adjust controls as necessary.

IF VIBRATION CONTINUNES shut down fan immediately. TURN OFF POWER SUPPLY AND RED

TAPE THE SWITCH SO THAT POWER WILL NOT

BE TURNED ON INADVERTENTLY. NEVER WORK

ON FANS WITH THE POWER SUPPLY ON.

Open up the wheel access section and inspect wheel rotor assembly.

Dirt build-up on wheel (most common symptom).

Clean as necessary.

Wheel damage from foreign object in the system or corrosion. Wheel should be repaired and rebalanced. If fan is still under the factory warranty, contact IAP, Inc. before repairs are made.

Rubbing parts due to wheel adjustment, or twisted housing from unlevel foundation or bad duct connections.

Parts loosened…tighten to recommended torque.

If foundation support structures are used, possible bracing or tightening of bolts will help.

Check dynamically balanced couplings. Possibly not assembled same as at the factory.

Tubes and water pipes should not be connected to the fan housing.

IF VIBRATION STILL CONTINUES

Check drive alignment Check coupling alignment Check for “set” in bearings due to long term in storage (see page 1).

Measure bearing vibration with a portable vibration meter that has been calibrated recently. Housing ends, sides and top should be within the limits shown in chart below on page 6.

VIBRATION IDENTIFICATION GUIDE PRODUCTION MEASUREMENTS CORP.

CAUSE

FREQUENCY

RELATIVE TO

MACHINE RPM

PHASE –PROBE

PICTURE

AMPLITUDE

NOTES

Unbalance 1 X RPM Single steady Reference Mark

Radial – Steady Proportional To Unbalance

Common Cause of Vibration

Defective Anti-Friction Bearing

10 to 100 X RPM

Unstable

Measure Velocity 0.2 to

1.0 in/sec Radial

Velocity Largest at Defective Bearing.

As failure Approaches Velocity Signal Will Increase. Frequency Will Decrease.

Sleeve Bearing 1 X RPM Single Reference Mark Not Large Shaft and Bearing Amplitude About the Same

Misalignment Coupling or Bearing

2 X RPM Sometimes 1 or 3 RPM

Usually 2 Steady Reference marks Sometimes 1 or 3

High Axial

Axial Vibration Can Be Twice Radial.

Use Dial Indicator As Check

Bent Shaft 1 or 2 X RPM 1 or 2 High Axial

Defective Gears High RPM X Gear Teeth

Radial

Use Velocity Measurement

Mechanical Looseness

1 or 2 X RPM 1 or 2 Proportional To Looseness

Radial Vibration Largest In Direction Of Looseness

Defective Belt Belt RPM X 1 or 2 Erratic Strobe Lite Will Freeze Belt

Electrical

Power Line Frequency X 1 or 2 (3600 or 7200 RPM)

1 or 2 Rotating Marks

Usually Low

Vibration Stops Instantly When Power Is Turned Off

Oil Whip

Less Than RPM

Unstable

Radial - Unsteady

Frequency May Be as Low as Half

RPM

Arodynamic 1 X RPM or Number of Blades On Fan X RPM

May Cause Trouble in Case of Resonance

Beat Frequency

1 X RPM

Rotate At Beat Rate

Variable At Beat Rate

Created By Two Machines Running At Close RPM

Resonance

Specific Criticals

Single Reference Mark

High

Phase Will Change With Speed. Amplitude.

Will Decrease Above and Below Resonance Speed. Resonance Can Be Removed From Operative Range By Stiffening.

BEARING ASSEMBLIES

Most are factory assembled. Very large fans are field assembled.

Types used are… A. Sleeve Bearings – see field assembly, page 3.

B. Split Pillow Blocks

a. Self-aligning Ball Bearings, Adapter Mount.

b. Spherical Roller Bearings, Adapter Mount.

C. One Piece Pillow Blocks, Ball Bearings

a. Set Screws

b. Spring Locking Collars with Set Screws

c. Eccentric Cam Locking Collars

ASSEMBLY OF SELF ALIGNING BALL BEARINGS,

ADAPTER MOUNT.

1. Inner Triple Seal – Slide on Shaft

2. Adapter Sleeve – Position, threads outboards. Lubricate, light oil or powdered graphite.

3. Bearing On Adapter Sleeve – slide on, large bore first. Hand tighten, locate axial position on shaft. Don’t apply lockwasher yet.

4. Locknute – Lubricate chamfered face which goes next to bearing, screw into position, tighten with spanner wrench until the Adapter Sleeve cannot be moved axially or rotated. Then with a hammer, drive the spanner wrench until the Locknut turns 90° (1/4 turn). Outer ring should turn freely; if not, Locknut is too tight. Sleeve should be tight on shaft; if too loose, inner ring will turn on sleeve and/or sleeve will turn on shaft.

5. Locknut and Lockwasher – Remove locknut, mount Lockwasher with inner prong toward bearing face and in the slot on Adapter Sleeve. Reapply Locknut until tight. Don’t push bearing further up on the taper, or internal clearance previously secured will be reduced. Find a tang nearest a Locknut slot. Tight Locknut to tan; do not loosen. Secure tang.

6. Outer Triple Seal – Slide on shaft

7. Lower Half of Housing – Clean, including holes. Remove paint or burrs on matting surfaces. Work grease into bearings, and pack Lower Half of Housing 1/3 to ½ full. Set Lower Halves on mounting base, oil seats. Carefully, place shaft with bearings on Lower Halves, guide Triple Seals into grooves.

Outer rings should sit squarely on seats. Securely bolt the held bearing to base. One held bearing avoids axial play; other bearings must be free for shaft expansion.

8. Stabilizing Ring (Held bearing only) – Move shaft axially and insert Ring between bearing outer ring and housing shoulder on Locknut side. The center the free bearing in its housing seat and secure.

9. Upper Half of Housing – Clean and oil. Remove paint of burrs on mating surfaces. Sealing compound (such as Permatex No.

2) is useful between mating halves. Wipe a thin film near outer edges only. Secure Upper Halves to original mating parts; they are not interchangeable. NOTE: If shimming is required, use full shims.

ASSEMBLY OF SPHERICAL ROLLER BEARINGS,

ADAPTER MOUNT

Basically, assembly parts and sequence are the same as Self Aligning Ball Bearings, Adapter Mount, except for Internal Radial Clearance and Locknut procedures. Internal Radial Clearance between the inner and outer rings must be measured before the bearing is mounted and after the Locknut has reduced the clearance.

ADAPTER MOUNT – SPHERICAL

ROLLER BEARINGS

SHAFT DIA. Reduction in Radial Inches Internal Clearance (Inches) From Thru Min. Max 11/4 - 1 ¾ .0010 .0012 1 13/16 – 2 ¼ .0012 .0015 2 5/16 – 2 ¾ .0015 .0020 2 13/16 – 3 ½ .0018 .0025 3 9/16 – 4 ¼ .0020 .0028 4 5/6 – 5 .0025 .0035 5 1/16 – 5 ½ .0030 .0040 5 9/16 – 6 ½ .0030 .0045 Example: 1. The Unmounted Radial Clearance = .004”

2. Shaft diameter = 3 7/16”.

3. Chart above shows a reduction of .0018” min., .0025” max.

4. Final mounted Internal Radial Clearance will range from: Minimum Maximum

.004” .004” -.0025” -.0018” .0015” .0022”

How To Measure Internal Radial Clearance. The spaces between the most vertical unloaded roller and the outer ring is measured with progressively larger feeler blades. Slide blade thru the full length of the roller; do not roll the blade. The largest blade that slides thru is the Internal Radial Clearance.

NOTE: Larger bearings require a heavy duty spanner wrench and a sledge hammer to obtain the required reduction in clearance. Do not try to tighten Locknut with a hammer and a drift; Locknut will be damaged and chips can enter the bearing.

Ball Bearings with On Piece Pillow Blocks Series 200 and 300.

1. Clean shaft, remove burrs, lubricate, clear set screws from bore

2. Slide bearing over shaft. Locate set screws on unused area on shaft. If force is required, use hardwood, soft metal tubing on the end of the inner race only.

3. Bolt bearing to support; it should turn easily.

4. Find final position and lock bearing to shaft.

a. Eccentric Cam Locking Collar Bearings. Tighten in direction of shaft rotation with a spanner wrench.

b. Set Screw Bearings. Tighten according to Torque Chart.

If Half Dog Point Screws are used…

1. Center punch shaft thru set screw holes.

2. Back off bearing and drill holes as deep as the full length of the set screw.

3. Replace bearing and bolt to support.

4. Tighten set screws, position locking wires.

5. Normally, both bearings are “held” or “fixed.” If an expansion bearing is used, position cartridge in the bearing housing to all adequate movement toward expected expansion.

SETSCREW TIGHTENING TORQUE

SHAFT DIA. SEATING TORQUE

Inches (In. – Lbs. + 5%) From Thru 200 Series 300 Series

- 1 3/16 185 185 1 1/4 - 1 9/16 325 185 1 5/8 – 1 15/16 325 325 2 – 2 7/16 460 460 2 1/2 - 2 15/16 ---- 680

X MAINTENANCE – fans have few moving parts and seldom need more than inspection, cleaning wheels and lubrication.

INSPECTIONS depend upon the fan environment. Time intervals between inspections become obvious. Then set up and maintain a consistent schedule.

CLEAN FAN WHEELS assure good wheel balance and increased bearing life. Grease and dust buildup is the major cause of excessive vibration and fan failure.

LUBRICATION: Bearings are lubricated on factory assembled fans.

1. Grease Type Ball or Roller Bearings – Some smaller ball bearings are permanently lubricated. Periodically, grease should be added to other bearings. Add grease slowly until a slight bead forms at the seals. AVOID OVERPACKING!

TOO MUCH GREASE WILL CAUSE OVERHEATING.

Inspection every two months should be adequate unless service is heavy and speed is high.

WARNING: DO NOT LUBRICATE WHILE FAN IS IN

OPERATION AND MOVING.

2. Oil Type Bearings – Select an oil that will have these viscosities at operating temperatures.

a. Ball Bearings: 13 Centistokes (70 Saybolt Sec.)

b. Spherical Roller Bearings: 20 Centistokes (100 Saybolt

Sec.)

NOTE: Oil type Ball Bearings and Spherical Roller Bearings…add oil thru cups and only after the fan has stopped for at least five minutes. DO NOT OVERFILL.

c. Sleeve Type Bearings Fill with oil to the top of the center circle the oil gauge; level should not drop below bottom of circle. DO NOT OVERLUBRICATE! This causes overheating, bearing failure. A weekly check of oil level and contamination is desirable, but seldom needs oil more than once a month. Change oil after first 120 hours, then after each 1,000 hours, normally (depending upon dirt in environment). BE SURE OIL LUBRICATORS ARE LEVEL especially with extended piping.

NOTE: A slight rise in temperature is normal after relubrication until bearing chamber is stabilized.

(1) Frequency of regreasing will vary, depending on the hours of operation, temperature and surrounding conditions.

SLEEVE BEARINGS – OIL VISCOSITY

Room Temp at Startup Speed Oil Required

Below -10°F

-10°F to 32°F 32°F to 70°F

Above 70°F

All

All Low High Low High High

Consult

SAE 10

SAE 20

SAE 10

SAE 30

SAE 10 (light loads) SAE 20 (heavy loads)

Oil film in liner should not exceed 180°F. Only use high quality petroleum oils, straight mineral type with rust and oxidation inhibitor and anti-foam agent. Approximate vixcosity below.

SAE 10 = 183 SUS at 100°F; 46 SUS at 210°F SAE 20 = 348 SUS at 100°F; 57 SUS at 210°F SAE 30 = 489 SUS at 100°F; 65 SUS at 210°F

WARRANTY OF SELLER’S PRODUCTS

Warranty of Seller’s Products – Except where a different express written warranty has been issued with respect to a particular product, no warranty of any kind, express or implied, is extended by the seller to any person or persons other than its direct Buyers. To direct Buyers, the seller warrants only that it will furnish by freight a replacement for or at its option repair, any product of its manufacturer or part or portion therof, proved to its satisfaction to be defective in material or workmanship under normal use and service within one year from the date of shipment.

The Seller shall have no responsibility for the performance of any product sold by it under conditions varying materially from those under which such product is usually tested under existing industry standards, nor for any damage to the product from abrasion, erosion, corrosion, deterioration or the like due to abnormal temperatures or the influence of foreign matter or energy, nor the design or operation of any system of which any such product for any particular application. The seller shall not be liable for any cost or expense including, without limitation, labor expense, in connection with the removal or replacement of alleged defective equipment or any part or portion therof not for incidental or consequential damages of any kind, not under any circumstances for an damage beyond the price of the good sold. Any freight allowances in connection with a replacement will be on the same terms as were applicable to the original sale, except that a replacement for a product or part or portion therof which is proved to the Seller’s satisfaction to be defective in material or workmanship as provided herinabove, will in any event be furnished with freight (but not local cartage) allowed, inside the continental U.S. (excluding Alaska and Hawaii) to the first destination.

Other Warranties – the foregoing warranty is in lieu of all other warranties of any kind, express or implied and of all other obligations or liabilities, on the part of the Seller. The Seller neither assumes, nor does it authorize any other person to assume on it’s behalf, any other liability in connection with the sale of its products.

Consult your local representative or factory for additional information

PO BOX 56 • PHILLIPS, WI 54555

GREASE LUBRICATION

Dirt Exposure Bearing Moisture Exposure Bearing Operating

Temperature

Greasing Interval (1)

Use Grease Equivalent to these

Slight

32°F to 120°F 120°F to 160°F 160°F to 200°F

6 months 2-4 months 1-2 months

Moderate To Heavy

None

32°F to 160°F 160°F to 200°F

1-4 weeks 1 week

High quality NLGI No. 2 multi-purpose ball bearing greases are generally satisfactory. Consultation with a reputable lubricant supplier is recommended.

Slight to Heavy

Direct water splash or exposure to outdoor enviroment

32°F to 200°F

Daily to 1 week or as…