Flexco Flex-Lag Rubber Manuale utente

Flex-Lag®Cold Bond Pulley Lagging

Installation, Operation

and Maintenance Manual

www.ﬂexco.com

Light-Duty Plain-Pattern

Diamond-Pattern Rubber

Medium Ceramic (39%)

Diamond-Pattern Ceramic (13%)

Full Ceramic (80%)

2Flex-Lag®Cold Bond Pulley Lagging

Flex-Lag®Cold Bond Pulley Lagging

Purchase Date:______________________________________________________________

Purchased From: ____________________________________________________________

Installation Date: ____________________________________________________________

This information will be helpful for any future inquiries or questions

about replacement parts, specifications or troubleshooting.

Section 1 – Important Information ....................................................................... 2

1.1 General Introduction .......................................................................................... 2

1.2 User Benets ........................................................................................................ 2

1.3 Service Option ..................................................................................................... 2

Section 2 – Safety Considerations and Precautions .............................................. 3

2.1 Stationary Conveyors.......................................................................................... 3

2.2 Operating Conveyors .......................................................................................... 3

Section 3 – Pre-Installation Checks and Options.................................................. 4

3.1 Checklist ............................................................................................................... 4

Section 4 – Installation Instructions...................................................................5-8

Section 5 – Pre-Operation Checklist and Testing.................................................. 9

5.1 Pre-Op Checklist ................................................................................................. 9

5.2 Test Run the Conveyor ....................................................................................... 9

Section 6 – Maintenance ................................................................................. 10-12

6.1 New Installation Inspection.............................................................................10

6.2 Routine Visual Inspection................................................................................10

6.3 Routine Physical Inspection............................................................................. 10

6.4 Maintenance Log ...............................................................................................11

6.5 Lagging Maintenance Checklist ......................................................................12

Section 7 – Troubleshooting ................................................................................ 13

Section 8 – Specs and CAD Drawings.............................................................13-21

8.1 Specications...................................................................................................... 13

8.2 CAD drawing - Light Duty ..............................................................................14

8.3 CAD drawing - Plain Rubber........................................................................... 15

8.4 CAD drawing - Diamond-Pattern Rubber..................................................... 16

8.5 CAD drawing - Diamond Ceramic.................................................................17

8.6 Medium Ceramic, Dimpled Tiles....................................................................18

8.7 Medium Ceramic, Smooth Tiles......................................................................19

8.8 Full Ceramic, Dimpled Tiles ..........................................................................20

8.9 Full Ceramic, Smooth Tiles.............................................................................. 21

Section 9 – Lagging Adhesives/Toolbox .............................................................. 22

Section 10 – Other Flexco Conveyor Products.................................................... 25

Table of Contents

2Flex-Lag®Cold Bond Pulley Lagging

Section 1 – Important Information

1.1 General Introduction

We at Flexco are very pleased that you have selected Flex-Lag® Pulley Lagging for your conveyor system.

is manual will help you to understand the operation of this product and assist you in making it work up to

its maximum eciency over its lifetime of service.

It is essential for safe and ecient operation that the information and guidelines presented be properly

understood and implemented. is manual will provide safety precautions, installation instructions,

maintenance procedures and troubleshooting tips.

If, however, you have any questions or problems that are not covered, please contact your eld representative

or our Customer Service Department:

Customer Service: 1-800-541-8028

Visit www.exco.com for other Flexco locations and products.

Please read this manual thoroughly and pass it on to any others who will be directly responsible for

installation, operation and maintenance of this pulley lagging. While we have tried to make the installation

and service tasks as easy and simple as possible, it does however require correct installation and regular

inspections to maintain top working condition.

1.2 User Benets

Correct installation and regular maintenance will provide the following benets for your operation:

• Eliminate belt slippage

• Reduced conveyor downtime

• Reduced man-hour labor

• Lower maintenance budget costs

• Increased service life for the lagging and pulley

1.3 Service Option

Flex-Lag® Pulley Lagging is designed to be easily installed and serviced by your on-site personnel. However, if

you would prefer complete turn-key factory service, please contact your local Flexco Field Representative.

Section 2 – Safety Considerations and Precautions

Before installing and operating Flex-Lag® Pulley Lagging, it is important to review and understand the following safety

information.

There are set-up, maintenance and operational activities involving both stationary and operating conveyors. Each case

has a safety protocol.

2.1 Stationary Conveyors

The following activities are performed on stationary conveyors:

• Installation

• Cleaning

DANGER

WARNING

It is imperative that OSHA/MSHA Lockout/Tagout

(LOTO) regulations, 29 CFR 1910.147, be followed before

undertaking the preceding activities. Failure to use LOTO

exposes workers to uncontrolled behavior of the products

caused by movement of the conveyor belt. Severe injury or

death can result.

Before working:

• Lockout/Tagout the conveyor power source

• Disengage any takeups

• Clear the conveyor belt or clamp securely in place

Use Personal Protective Equipment (PPE):

• Safety eyewear (splash goggles optional)

• NIOSH-approved air respirator with organic

vapor cartridge (if ventilation is not available as

recommended in enclosed Safety Data Sheets)

• Hardhat • Long-sleeve shirt

• Safety footwear • Apron (optional)

• Nitrile gloves

Close quarters and heavy components create a worksite

that compromises a worker’s eyes, feet and skull.

PPE must be worn to control the foreseeable hazards

associated with conveyor lagging. Serious injuries can

be avoided.

2.2 Operating Conveyors

There are two routine tasks that must be performed while the conveyor is running:

• Inspection of performance

• Dynamic troubleshooting

Every belt pulley is an in-running nip hazard. Never

touch or prod an operating pulley. Pulley hazards cause

instantaneous amputation and entrapment.

Never adjust anything on an operating pulley.

Unforseeable belt projections and tears can cause

violent movements. Flailing hardware can cause

serious injury or death.

Pulleys can become projectile hazards. Stay as far from the

pulley as practical and use safety eyewear and headgear.

Missiles can inflict serious injury.

4Flex-Lag®Cold Bond Pulley Lagging

3.1 Checklist

Section 3 – Pre-installation Checks and Options

• Check that the lagging size is correct for the pulley width

• Check that the correct amount of lagging strips are available to lag the

pulley (see Page 6).

• Check that the correct amount of primer, adhesive and activator are

available to lag the pulley (see Page 6).

• Check the carton and make sure all the parts are included

• Review the “Tools Needed” list on the top of the installation instructions

• Check the conveyor site:

· Will the lagging be installed in a chute

· Is the install on an open head pulley

Flex-Lag Primer, Adhesive and Activator ONLY for use with

cold-bond rubber-to-rubber or rubber-to-metal adhesion.

Section 4 – Installation Instructions

Physically lock out and tag the conveyor at the power source

before you begin pulley lagging installation.

If using non-Flexco adhesives, please follow that company’s instructions for usage, mixing, application and safety

procedures.

Flex-Lag® Pulley Lagging can be used with Flex-Lag Adhesives. Flex-Lag Adhesives consist of a Primer, Adhesive

and Activator. Before using, the Primer should be thoroughly mixed. Before using, one Adhesive and one Activator

should be thoroughly mixed and used within three hours. Reference the Adhesive Usage Charts on Page 6 for

quantity of each material required based on Pulley Diameter and Face Width.

ese materials are meant for use at room temperature. e ambient temperature and temperature of the lagging

and pulley must be between 41˚F113˚F (5˚C 45˚C), and the relative humidity should not exceed 80% during the

lagging procedure. ese should be checked prior to starting and occasionally during the lagging process to ensure

proper bonding.

Proper protective equipment should be used during the lagging process. Wear safety glasses with side shields.

Wear chemical splash goggles if the possibility exists for eye contact with splashing liquid. Avoid skin contact by

wearing chemically-resistant gloves (nitrile) and long sleeved shirt. An apron may be appropriate if splashing can

occur. Respiratory protection may be required to avoid overexposure when handling this product. If general room

ventilation is not available or sucient use a NIOSH-approved air purifying respirator with organic vapor cartridge.

Please reference the Safety Data Sheets for Adhesive, Activator and Primer to see detailed requirements. Also, please

follow any local or state guidelines for use of this product.

Tools Needed:

• Grinder (low RPM recommended)

• 24 Grit Flap Disc

• Bench Brush

• Coarse Dish Wheel

• Paint Brushes

• Heavy Duty Knife

• Chalk Line

• Dead Blow Rubber Hammer

• Lagging Stitchers/Rollers

• Oscillating Tool (for cutting rubber)

1. Prepare the pulley by removing the old lagging, paint and primer.

Sand blast the entire pulley or use a grinder with 24 grit flap disc or

paper disc. Use bench brush and non-oil-based metal solvent to clean

remaining particles from the pulley surface. Paint the pulley surface,

including the edges, with Flex-Lag Primer. Allow to dry completely –

a minimum of 30 minutes.

2. Use a grinder with coarse dish wheel to buff the edges and bottom

of the lagging. Be careful not to smoke the rubber. Wipe with non-

oil-based solvent to clean surface of any particles.

Fig. 1

Fig. 2

6Flex-Lag®Cold Bond Pulley Lagging

Section 4 – Installation Instructions (cont.)

3. Use the Strip Selection Chart at right to

calculate the number of strips required for

your pulley diameter. Using a heavy duty

knife, cut lagging strips 4" (100mm) longer

than the pulley face width. Medium and Full

Ceramic lagging come in pre-specified strip

lengths. Note: Do not allow ceramic tiles to

sit at, or over, the edge of the pulley face.

Strip Selection

PULLEY DIAMETER STRIPS

REQUIRED

PULLEY DIAMETER STRIPS

REQUIRED

in. mm in. mm

12.6-15.0 320-381 6 42.6-45.0 1083-1145 18

15.1-17.5 382-445 7 45.1-47.5 1146-1210 19

17.6-20.0 446-510 8 47.6-50.1 1211-1273 20

20.1-22.5 511-573 9 50.2-52.6 1274-1336 21

22.6-25.0 574-636 10 52.7-55.1 1337-1400 22

25.1-27.5 637-700 11 55.2-57.6 1403-1463 23

27.6-30.0 701-764 12 57.7-60.1 1466-1527 24

30.1-32.5 765-827 13 60.2-62.6 1529-1590 25

32.6-35.0 828-891 14 62.7-65.1 1593-1654 26

35.1-37.5 892-955 15 65.2-67.6 1656-1717 27

37.6-40.0 956-1018 16 67.7-70.1 1720-1781 28

40.1-42.5 1019-1082 17 70.2-72.6 1783-1844 29

Fig. 3

FLEX-LAG®ADHESIVE 0.8L / ACTIVATOR 40g (1:1 mix ratio)

Face Width

In. 10 14 18 22 26 30 34 38 42 46 50 54 58 62 66 70 74 78 82 86 90

mm 254 356 457 559 660 762 864 965 1067 1168 1270 1372 1473 1575 1676 1778 1880 1981 2083 2184 2286

Pulley Diameter

8 203 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3

12 305 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 3 3 3 4 4 4

16 406 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 4 4 4 5 5 5

20 508 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6

24 610 1 2 2 2 2 3 3 3 4 4 4 5 5 5 5 6 6 6 7 7 7

28 711 1 2 2 2 3 3 3 4 4 5 5 5 6 6 6 7 7 7 8 8 8

32 813 2 2 2 3 3 4 4 4 5 5 6 6 6 7 7 8 8 8 9 9 10

36 914 2 2 3 3 3 4 4 5 5 6 6 7 7 8 8 8 9 9 10 10 11

40 1016 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12

44 1118 2 2 3 4 4 5 5 6 6 7 7 8 9 9 10 10 11 11 12 12 13

48 1219 2 3 3 4 4 5 6 6 7 7 8 9 9 10 10 11 12 12 13 13 14

52 1321 2 3 3 4 5 5 6 7 7 8 9 9 10 11 11 12 13 13 14 15 15

56 1422 2 3 4 4 5 6 6 7 8 9 9 10 11 11 12 13 14 14 15 16 16

60 1524 2 3 4 5 5 6 7 8 8 9 10 11 11 12 13 14 14 15 16 17 17

FLEX-LAG® PRIMER .75L

Face Width

In. 10 14 18 22 26 30 34 38 42 46 50 54 58 62 66 70 74 78 82 86 90

mm 254 356 457 559 660 762 864 965 1067 1168 1270 1372 1473 1575 1676 1778 1880 1981 2083 2184 2286

Pulley Diameter

8 203 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

12 305 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

16 406 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

20 508 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

24 610 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

28 711 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

32 813 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

36 914 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2

40 1016 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2

44 1118 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2

48 1219 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2

52 1321 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2

56 1422 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2

60 1524 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2

Adhesive, Activator and Primer Usage Charts

5. After the first coat of adhesive has dried completely, mark a line across the

pulley face using a chalk line or scriber, ensuring the line is parallel to the

shaft’s centerline and square to the edge of the pulley.

6. Apply second coat of adhesive to the pulley. Thoroughly mix one can of

adhesive and activator at a time. From the perpendicular line, apply the

second coat of adhesive to an area slightly greater than one strip of lagging.

4. Apply first coat of adhesive. Thoroughly mix one can of adhesive and one activator at a time, immediately applying it

to the pulley and strips of lagging. Be sure to apply adhesive to the edges of the lagging as well. This process should use

half of the adhesive/activator required in the chart on Page 6. Note: Allow 4 hours for the first coat to properly cure.

Temperature and humidity will affect dry time.

Section 4 – Installation Instructions (cont.)

7. Apply a second coat of adhesive to one strip of lagging. Be sure to apply

adhesive to the edges of the lagging as well.

8. After the second coat has reached the appropriate tackiness (approximately

2-5 minutes, touch with back of hand – feels tacky and leaves no adhesive on

hand) install one strip of lagging, using the perpendicular line to assure the

strip is square to the pulley. Working out from the center of the strip, use a

dead blow rubber hammer for tamping to remove the air gaps, ensuring all

surface area receives one hammer blow. Repeat this process with Lagging

Stitchers/Rollers to remove air gaps from drainage grooves. Be sure to check

edges to verify seal.

Fig. 4a Fig. 4b

Fig. 5

Fig. 6

Fig. 8

Fig. 7

8Flex-Lag®Cold Bond Pulley Lagging

Section 4 – Installation Instructions (cont.)

9. Repeat Steps 6 and 7, then place the second strip of lagging against the first,

taking care to ensure there are no gaps between the lagging. Shift lagging side-

to-side to align diamond/ceramic patterns. Additional stitching between strips

may be required to remove any gaps. Repeat the tamping and stitching process

in Step 8 to remove air gaps from the applied strip.

10. Trim the excess lagging from applied strips at the edge of the pulley using a

heavy duty knife or oscillating tool. Trim lagging at an angle up and away from

the pulley edge. This can be done every one or two strips.

11. To apply the last 3-4 strips, position cut-off pieces of lagging from Step 10 in the unlagged portion of the pulley.

Manipulate the pieces to determine trim requirements for the last few strips. Trim the pieces in the gutters to find the

proper fit. Use the pieces as templates to trim the last few strips of lagging. Note: Final strips should not consist of

less than three rows.

12. Follow Steps 6 through 10 to install the last 3-4 strips. The final piece of

lagging (largest of final pieces) should drop into position. Check the fit of the

last piece prior to applying the second coat of adhesive.

13. Fill any gaps between the lagging strips with rubber sealer. Also use the

buffing wheel on trimmed edge of lagging and apply final coat of adhesive

to seal the edge and joint area between lagging strips.

Note: Allow minimum of 24 hours of curing time before putting newly

lagged pulley into use.

Fig. 9

Fig. 10

Fig. 11a

Fig. 12

Fig. 13

Fig. 11b

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