PD - APPENDIX A - GRAVITY ROLLER CONVEYOR (REV 1).pdf

APPENDIX A

FOR

GRAVITY ROLLER CONVEYOR

AT

JOINT BASE CHARLESTON, SOUTH CAROLINA

BUILDINGS 2194 & 2196

CSN: BCH105

DATE: 18 NOVEMBER 2022

REVISION 1: 4 APRIL 2023

PREPARED BY:

Megan Blackwell

MEGAN BLACKWELL

PROJECT ENGINEER

AFLCMC/EZPAE

Emmanuel Parel

EMMANUEL PAREL

REVIEWER

AFLCMC/EZPAE

THIS PAGE LEFT BLANK INTENTIONALLY

JB Charleston – Appendix A – Page i

Table of Contents

1. SCOPE

1.1. GENERAL SCOPE

1.2. DEFINITIONS

1.2.1. GRAVITY ROLLER CONVEYOR SECTION

1.2.2. GRAVITY ROLLER CONVEYOR LANE

1.2.3. ADJACENT CONVEYOR

2. APPLICABLE DOCUMENTS

3. REQUIREMENTS

3.1. SYSTEM DESCRIPTION

3.2. PHYSICAL AND PERFORMANCE CHARACTERISTICS

3.2.1. CONVEYOR CAPACITY

3.2.2. PALLET TRANSFER

3.2.2.1. PALLET INTERFACES

3.2.3. DEFORMATION UNDER IMPACT

3.2.4. CONVEYOR LEVELNESS

3.2.5. MANUAL OPERATION

3.2.6. GRAVITY ROLLER CONVEYOR

3.2.6.1. CONVEYOR GUIDERAILS

3.2.6.2. ROLLERS

3.2.6.2.1. ROLLER TUBES

3.2.6.2.2. ROLLER AXLES

3.2.6.2.3. ROLLER BEARINGS

3.2.6.3. ROLLER FRAMES

3.2.6.3.1. ANCHORING PLATES

3.2.6.3.2. STRUCTURAL SUPPORTS

3.2.6.3.3. CROSSTIES

3.2.6.4. INTERFACES

3.2.6.4.1. FORKLIFT TINE DEFLECTORS

3.2.6.4.2. FORKTINE FRAME PROTECTORS

3.2.6.4.3. SAFETY RAMPS

3.2.6.5. PALLET TRACKING

3.2.7. PALLET STOPS

3.2.7.1. REMOVABLE PALLET STOPS |R1

3.2.7.2. FIXED PALLET STOPS

3.2.8. ANCHORING AND SHIMS

3.2.9. SPARE PARTS

4. QUALITY CONFORMANCE

4.1. INSPECTIONS

4.2. TEST

4.3. CERTIFICATIONS

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JB Charleston – Appendix A – Page 1

1. SCOPE

1.1. GENERAL SCOPE

This appendix establishes the minimum performance, design, fabrication, installation, orientation, and test requirements for gravity roller conveyor systems for the 437th Aerial Port

Squadron (APS) in Building 2194 and 2196 at Joint Base (JB)

Charleston, South Carolina. The work shall be completed in accordance with this appendix, the Cover Purchase Description

(PD), and Air Force (AF) Drawing BCH105-01. This appendix covers all equipment, materials, and labor necessary to complete installation of the system.

1.2. DEFINITIONS

1.2.1. GRAVITY ROLLER CONVEYOR SECTION

A gravity roller conveyor section is a set of non-powered rollers within frames along the direction of travel of the pallet.

1.2.2. GRAVITY ROLLER CONVEYOR LANE

A gravity roller conveyor lane is a set of four non-powered roller conveyor sections and two guide rails laid out across the width of the pallet to convey it in a particular direction.

1.2.3. ADJACENT CONVEYOR

All nearby conveyors that a particular conveyor interfaces with for pallet transfer are called adjacent conveyors.

2. APPLICABLE DOCUMENTS

Applicable documents shall be in accordance with Section 2 of the Cover PD.

3. REQUIREMENTS

3.1. SYSTEM DESCRIPTION

The 463L pallet gravity roller conveyor systems shall be located and configured as shown on AF Drawing BCH105-01. The roller conveyor system shall aid in the movement of 463L pallets onto the ball transfer conveyor system. The gravity roller conveyor system shall interface with the ball transfer conveyor (Appendix

JB Charleston – Appendix A – Page 2

B). Pallets will be placed onto the conveyor lane by 10k forklift, 4k forklift, or K-loader.

3.2. PHYSICAL AND PERFORMANCE CHARACTERISTICS

3.2.1. CONVEYOR CAPACITY

Conveyor capacity shall be a minimum 2,000 pounds per lineal foot with a safety factor of 1.92 to 1.

3.2.2. PALLET TRANSFER

The conveyor system shall be designed to transfer 463L pallets with either the wide edge or narrow edge leading perpendicular to the inbound/outbound direction of travel for all possible pallet loads, from empty to fully loaded.

3.2.2.1. PALLET INTERFACES

Pallets shall not snag or bind at interfaces between adjacent roller frames; between adjacent guide rails; and between the gravity roller conveyor and the ball transfer conveyor for all pallet transfers in any direction. The conveying surface shall be level at the ball transfer conveyor interface. Pallets transferred on the conveyor shall not contact any building component. Roller spacing shall not exceed 6 inches measured between roller centerlines at all conveyor interfaces.

3.2.3. DEFORMATION UNDER IMPACT

All roller frames, rollers, bearings, roller shafts, and guiderails shall be capable of withstanding repeated impacts from on-loading of pallets (fully loaded) without suffering any damage or permanent deformations. Pallet transfer impacts occur during the transfer of pallets from conveyor to conveyor.

Horizontal impacts occur when forklifts approach the conveyor to pickup or offload pallets. Vertical impacts occur when forklifts load or offload pallets.

3.2.4. CONVEYOR LEVELNESS

The conveying surface shall be level along its entire length and width. All conveyors shall be level to within 1/8 inch over the entire length of the conveyor and 1/2 inch over the entire width of the conveyor. The conveyor shall provide a smooth surface for transporting palletized loads. Levelness shall be maintained regardless of the weight or positioning of the load on the conveyor. Levelness shall be maintained before, during, JB Charleston – Appendix A – Page 3 and after all manual transfer operations so the load does not become too difficult to push and to prevent pallets from moving away from operators.

3.2.5. MANUAL OPERATION

All rollers shall be free spinning without binding during all operations. The force required to start and maintain pallet transfer shall not exceed 25 pounds per 1,000 pounds of load.

The force requirements shall apply for all pallet loads weighing between 2,000 pounds and 10,000 pounds. The force to move a pallet weighing less than 2,000 pounds shall not exceed 50 pounds. The force requirements apply to pallets traveling inbound or outbound for the gravity roller conveyor. The force requirement shall be met by manual transfer without using tools for leverage. The force shall be applied 48 inches above the conveying surface at the edge of the pallet.

3.2.6. GRAVITY ROLLER CONVEYOR

The gravity roller conveyor system shall consist of gravity roller conveyor sections, as shown in Figure 1, installed to create (along with guiderails) gravity roller conveyor lanes as defined in 1.2.1. and 1.2.2.

Figure 1 – Typical Gravity Roller Conveyor Section

3.2.6.1. CONVEYOR GUIDERAILS

The gravity roller conveyor lane entering the building and the outermost gravity roller conveyor sections inside the building shall have pallet guiderails. Rails shall be structural angle

JB Charleston – Appendix A – Page 4 steel 0.5-inch in thickness. The height of the guiderails shall be no less than 1.5 inches but no more than 2 inches above the conveying surface. The width of the guiderails shall be 4 inches to allow for anchoring. Guiderails shall flare out at the beginning of each conveyor lane and be positioned in accordance with AF Drawing BCH105-01. The final 12 inches of guiderail at the forklift interface shall flare out 1 inch or 5 degrees. The final 20 inches of guiderail at the interface with the ball transfer conveyor shall flare out 3 inches or 8.5 degrees. Each rail section shall be a continuous section where possible. Rail sections shall be building floor on maximum 5-foot centers. Additionally, the rails shall be anchored within

6 inches of the end of each section. Each rail section shall anchored in a minimum of two places. Rail sections shall be mounted flush end to end to prevent snag points. Guiderail sections shall be welded or spliced to provide a continuous, smooth surface. All guiderails shall be painted safety yellow.

3.2.6.2. ROLLERS

Each roller shall have a minimum load capacity of 550 pounds.

The rollers shall be located on maximum 6-inch centers with the exception of rollers passing through overhead doors which shall be location on maximum 12-inch centers. The rollers shall be installed such that the tops of the rollers extend a minimum of

1/4-inch above the frame. The rollers shall be easily removable for inspection and maintenance. Rollers shall be designed to have a minimum service life of ten years at a usage rate of

5,000 hours per year based on ANSI/CEMA 401, using an equivalent radial load which is greater than or equal to 10,000 pounds divided by half of the minimum number of rollers under a 463L pallet (21 rollers) and a roller surface speed of 40 feet per minute.

3.2.6.2.1. ROLLER TUBES

The roller tubes shall be minimum 2.5-inch outside diameter steel tubing. The wall thickness shall be 11-gauge or thicker.

The tubes shall have no seam or the seam shall be ground flush.

All roller tubes shall have electrodeposited zinc coatings.

Roller tube plating shall comply with ASTM B633, Service

Condition 2, Type I; Flo-Coat specifications; or equivalent approved by the Contracting Officer's Technical Representative

(COTR).

3.2.6.2.2. ROLLER AXLES

JB Charleston – Appendix A – Page 5

Axles shall be a minimum 11/16-inch hex cold rolled steel. All axles shall be of the through type and shall be pin/ring retained to facilitate easy removal of rollers for cleaning and maintenance.

3.2.6.2.3. ROLLER BEARINGS

Roller bearings shall be the non-precision, dust-tight, light-oil lubricated, zinc-plated, anti-friction ball type. Greased bearings shall not be acceptable. Each bearing shall have a minimum static load rating of 275 pounds. The bearings shall be securely mounted by swaging the roller ends or an equally suitable method approved by the COTR. The bearings shall be shielded or steel labyrinth sealed on both sides. If shielding is used, the shield shall be a solid, rigid material that will not flake or otherwise introduce foreign material into the bearing. Felt shields shall not be acceptable. The roller bearings shall have separate steel inner and outer rings.

3.2.6.3. ROLLER FRAMES

Roller frames shall be minimum 4-inch at 5.4 pounds-per-foot structural steel channel or a formed channel with physical and performance characteristics meeting or exceeding those of the structural channel. The inside frame width shall be 6 inches.

All frames shall be single sections without a joint where possible. Frame sections shall be bolted together flush end-to-end with lock washers or self-locking nuts to provide a continuous, level conveying surface. Axle holes shall be punched in the high position on the channel so the conveying surface matches the conveying surface of the ball transfer conveyor. Axles shall easily slide into and out of the axle hole without binding or interference from the frame. All roller frames shall be galvanized.

3.2.6.3.1. ANCHORING PLATES

Frames shall be anchored or attached to the surface below through anchor plates. Anchor plates shall be welded to both frames. The bottom of the anchor plate shall be flush with the bottom of both frames.

3.2.6.3.2. STRUCTURAL SUPPORTS

Steel crossties, pallet stop receptacles, and anchor plates shall be provided on a maximum spacing of every 30 inches between roller frames to provide structural support. Each

JB Charleston – Appendix A – Page 6 conveyor section shall have a minimum of 2 anchor plates, crossties, or removable pallet stops.

3.2.6.3.3. CROSSTIES

Crossties shall be structural angle. Crossties shall be welded to the inside of the roller frames and shall not interfere with operation of rollers. Crossties shall not be used to anchor gravity roller conveyor sections or support pallet stops.

3.2.6.4. INTERFACES

The gravity roller conveyor sections shall be capable of interfacing with K-loaders, 10K forklifts, and 4K forklift.

Each conveyor section shall interface with the ball transfer conveyor.

3.2.6.4.1. FORKLIFT TINE DEFLECTORS

Deflectors shall be installed at the beginning of the conveyor lane at the forklift interface. The design of the deflector shall be approved by the COTR prior to manufacturing. The deflector shall allow forklift tines to be deflected upwards so the impact is not felt by the frames. The deflectors shall be painted safety yellow. Deflectors shall not extend above the frames.

3.2.6.4.2. FORKTINE FRAME PROTECTORS

The forklift interfaces shall have forktine frame protectors placed in the inside edge of the outer two roller frame sections and both sides of the middle roller frame section. The protectors shall be 8 feet long. The forktine frame protectors shall be minimum 0.18 inch thick galvanized steel or other material approved by the COTR. The forktine frame protectors shall be bolted to the frame in at least three places. The forktine frame protectors shall be easily removable for repair/replacement. The bolt heads shall be recessed to prevent snag points. The forktine frame protectors shall not interfere with conveyor operation. The forktine frame protectors shall protect the conveyor frame from damage from forklift tines.

3.2.6.4.3. SAFETY RAMPS

Safety ramps shall be installed to prevent shear points where gravity roller conveyor interfaces with the ball transfer conveyor. Ramps shall transition the walkway height from floor level to the ball transfer treadplate to eliminate shear points

JB Charleston – Appendix A – Page 7 and provide a convenient walking surface for personnel manually transferring pallets. Ramps passing through overhead doors shall reach their maximum height before the the break for the door and then be completed inside the door with a filler plate matching the height of the ball transfer treadplate. Ramps shall be a minimum of 12 inches long. Ramps shall be minimum

0.12-inch structural steel and shall not deflect more than 0.18 inch when supporting a 250-pound person. Ramps shall provide a non-skid surface with high traction even when wet. Ramps shall be fastened in place with recessed-head bolts or another method approved by the COTR that is not a tripping or snagging hazard.

Ramps shall not be welded in place. Ramps shall be easily removable by one person. Pallets being transferred on the conveyor shall not contact the ramps. Ramps shall be installed between all conveyor frames and between conveyor frames and guard rails where specified or required for safe operation.

3.2.6.5. PALLET TRACKING

All gravity roller conveyor lanes shall be level and true.

Pallet loads shall be able to be pushed the entire length of the conveyor at 40 feet per minute by two people (when previously centered) without the edge of the pallet touching the guide rail.

3.2.7. PALLET STOPS

All stops shall extend a minimum of 4 inches above the conveying surface and shall be a minimum of 0.5-inch thick steel. Pallet stops shall not have sharp edges or corners that create a safety hazard. All pallet stops in a set shall be installed the same distance +/- 0.12 inch from the end of the conveyor. Pallet stops and their associated conveyor shall be capable of stopping a maximum weight pallet moving at 40 feet per minute without suffering any permanent deformation or damage or causing permanent deformation or damage to the supporting structure or the pallet. All pallet stops shall be painted red.

3.2.7.1. REMOVABLE PALLET STOPS |R1

The removable pallet stop plates and support angles shall be constructed as shown on Figure 2. Removable pallet stops A removable pallet stop shall be provided at each removable pallet stop receptacle, located as shown on AF Drawing BCH105-

01. When the removable stops are removed, there shall be no remaining protrusions that can snag the pallets or interfere with pallet transfer. Removable stops shall be 5.75 inches wide. A hand opening approximately 1 inch high by 3.25 inches

|R1

JB Charleston – Appendix A – Page 8 wide shall be punched in removable stops to provide a handle.

The top of the hand opening shall be located approximately 1 inch below the top of the stop. The removable stops shall slide between two support angles.

Figure 2 – Removable Pallet Stop

3.2.7.2. FIXED PALLET STOPS

Fixed pallet stops shall be bolted in place. Fixed pallet stops shall be provided and located as shown on AF Drawing BCH105-01.

Fixed pallet stops shall be minimum 1/2-inch steel. Fixed pallet stops shall be configured as shown in Figure 3.

Figure 3 – Fixed Pallet Stop

3.2.8. ANCHORING AND SHIMS

The conveyor shall be anchored to the building floor with bolts meeting the requirements of the Cover PD. The supporting surface bolted to shall be reinforced if necessary to prevent pull out, permanent deformation, or other damage during normal use. Conveyor frames and guide rails shall be anchored on maximum 60-inch centers, with each component being anchored in a minimum of two places. Conveyor frames and guide rails shall be anchored within six inches of each end. Shims shall be provided so the conveyor frames do not have an unsupported length greater than five feet. Shims shall be held in place by the bolt. Shim holes shall be punched or drilled. Slotted shims shall not be

JB Charleston – Appendix A – Page 9 acceptable. Beveled or half-shims shall be provided where required to provide a level conveying surface. Each shim shall be a minimum of 4 inches in length by 4 inches in width and shall not extend beyond the edge of the component under which it is installed (not visible from top view). Shims shall be of sufficient varying thickness so no more than five shims are installed at any anchor point. The guide rails shall be shimmed so the top of the guide rail extends a minimum of 1.5 inches above the conveying surface along the entire length of the conveyor. The Contractor shall field verify the slope of the floor prior to manufacturing the conveyor.

3.2.9. SPARE PARTS

The spare parts listed below shall be provided with the system.

Manufacturer, model number, and contact information for a distributor shall be included with the spare parts so ordering information is available for future use. All spare parts shall be new items with a full manufacturer’s warranty. The

Contractor shall replace any parts used during the warranty period at no cost to the Government.

A. Rollers: Provide 5 percent of the number of rollers in the system, rounded up to the next integer, to a maximum of 20 for each type of roller included in the system. Spare rollers shall include the roller tube, both bearings, and the shaft.

4. QUALITY CONFORMANCE

4.1. INSPECTIONS

The system shall be inspected to verify that it meets all the requirements of sections 1, 2, and 3 of this appendix and the

Cover PD. These inspections shall be completed as part of the system checkout test and again as a part of the quality conformance test.

4.2. TEST

The following tests shall be performed on the system as part of the system checkout test and again as a part of the quality conformance test.

No. Paragraph Description

JB Charleston – Appendix A – Page 10

1. 3.2.1. Load capacity test. Place one fully loaded

463L pallet on each conveyor section and leave the loads for two hours. Remove the loads.

Inspect the conveyor for damage and deformation. Individually spin every roller to determine if it is still free rolling. If any damage or deformation is present, or if any rollers are not free rolling, the conveyor fails this test.

2. 3.2.2.1. Conveyor interface test. Move 10,000-pound

463L pallet over all conveyors interfaces in both directions. Repeat 5 times. If pallets snag or bind at interfaces between conveyors, including ball transfer conveyor; if any pallet transfer cannot be completed; if any conveyor has damage or deformation following this test;

or if any pallet contacts the building or any building component, the conveyor fails this test.

3. 3.2.3. Deformation test. Test to ensure all roller conveyor frames, pallet stops, rollers, bearings, roller shafts, and guide rails are capable of withstanding repeated impacts from on-loading of pallets (full-loaded) without suffering any permanent deformations. Position a fully-loaded pallet on the roller conveyor lanes. Move the pallet up and down the conveyor lane five times. Repeat this procedure for all conveyor lanes using a fully-loaded pallet. Inspect the roller conveyor system for any deformation. If any deformation is present, the system fails this test.

4. 3.2.4. Levelness test. Test to ensure that the gravity roller conveyor is level along its entire length and width providing a smooth surface for transporting loads. Using a level, verify levelness at 10 different locations along the gravity roller conveyor. If the gravity roller conveyor is not level to within

0.125-inch over 10 feet, the system fails this

JB Charleston – Appendix A – Page 11

5. 3.2.5. Manual operation test. Measure the force required to start and maintain pallet transfer of a 463L pallet weighing 10,000 pounds in both directions on all conveyors. Repeat with a

2,000 pound pallet. If the force required to start and maintain motion for the 10,000-pound pallet exceeds 250 pounds or if the force required to start and maintain motion for the

2,000-pound pallet exceeds 50 pounds, the conveyor fails this test.

6. 3.2.6.4. Forklift interface test. Place a pallet weighing 10,000 pounds on a 10K forklift.

Approach each conveyor section and lower the pallet onto each conveyor. Move the forklift away and manually transfer the pallet away from the interface and then back to the forklift interface. Remove the pallet from the forklift interface with the forklift. Repeat three times at each conveyor section with a 3,000 pound load and 4K forklift. If any deformation is present or if the pallet would not transfer between the forklift and the conveyor, the

7. 3.2.6.4. K-loader interface test. Transfer a pallet weighing 10,000 pounds onto a K-loader.

Manually transfer the pallet away from the interface and then back to the K-loader.

Repeat three times at each conveyor section with varying loads. If any deformation is present or if the pallet would not transfer between the K-loader and the conveyor, the

8. 3.2.6.5. Tracking test. Center a 463L pallet weighing

10,000 pounds oriented wide-edge leading on the gravity roller conveyor. Push the pallet along the full length of the conveyor and back to the starting point 5 times. Repeat for all conveyor lanes in both directions. Repeat the above tests using a 3,000 pound pallet. Repeat the tests for an empty 463L pallet. If the pallet touches the guide rail during the test, the conveyor fails this test.

JB Charleston – Appendix A – Page 12

9. 3.2.7.

Pallet stop test. Test to ensure the pallet stops are designed to withstand impact of a load up to 10,500 pounds moving at 40 feet/minute without suffering any deformations to the pallet stops or to the load. With a fully-loaded pallet, impact all sets of pallet stops at a speed of 40 feet/minute. Inspect all pallet stops for deformation. If any deformation is present, the system fails this

10. 3.2.7.1. Removable pallet stop test. Remove and install all removable pallet stops. If any pallet stop binds, snags, or cannot be removed or installed, the conveyor fails this test.

4.3. CERTIFICATIONS

The Contractor shall provide certification that the following requirements have been met. All certifications shall be provided in accordance with the Contract Data Requirements List.

No. Paragraph Certifications

1. 3.2.6.2. Certify that each roller has a minimum load capacity of 550 pounds.

2. 3.2.6.2. Certify the rollers are designed to have a minimum service life of 10 years at a usage rate of 5,000 hours per year based on CEMA 401, using an equivalent radial load which is greater than or equal to 10,000 pounds divided by half of the minimum number of rollers under a 463L pallet (21) and a roller surface speed of 40 feet per minute.

3. 3.2.6.2.1. Certify the roller tube plating complies with

ASTM B633, Service Condition 2, Type I or Flo-

Coat specifications.

4. 3.2.6.2.3. Certify that the conveyor roller bearings are nonprecision, dust-tight, oil lubricated, zinc-plated, antifriction ball type.

5. 3.2.6.2.3. Certify the roller bearings have a minimum static load capacity of 275 pounds.

TECHNICAL PROPOSAL QUESTIONNAIRE

FOR

JB Charleston – Gravity Roller Conveyor TPQ – Page 1 of 4

GRAVITY ROLLER CONVEYOR

Solicitation Number: FA8604- -R-

Project Title: Conveyor System

Base: JB Charleston, SC CSN: BCH105

Appendix A – Gravity Roller Conveyor, R1: 4 April 2023

The Offeror shall complete this questionnaire. All entries to this questionnaire shall be typed. The questionnaire will be used to determine the Offeror's understanding of the requirements and acceptability of the proposed equipment.

Please attach any exceptions to the Purchase Description as detailed below.

No. Paragraph Characteristics

1. Will all the requirements specified in the

Cover Purchase Description be complied with as written, with exception taken only to those items indicated on the attached exception sheet?

YES NO

2. 3.2.4. Will the conveyor be level within 1/8 inch over the entire conveyor length?

3. 3.2.6.1. What are the dimensions of the conveyor guiderails? __________________________________

4. 3.2.6.1. How far out do guiderails flair at the forklift interface? __________________________

5. 3.2.6.1. How far out do guiderails flair at the ball transfer conveyor interface? _________________

6. 3.2.6.2. What is the minimum load capacity of the rollers? _____________________________________

7. 3.2.6.2. How far above the frame will rollers extend?

8. 3.2.6.2. How far apart will rollers be center to center? ______________________________________

JB Charleston – Gravity Roller Conveyor TPQ – Page 2 of 4

9. 3.2.6.2.1. What is the diameter and wall thickness of the rollers? _____________________________________

10. 3.2.6.2.1. Do roller tubes have electrodeposited zinc coatings?

11. 3.2.6.2.2. Are axles minimum 11/16-inch hex cold rolled steel?

12. 3.2.6.2.2. Are axles the through type with pin/ring retained?

13. 3.2.6.2.3. Are conveyor roller bearings the non-precision, dust-tight, zinc-plated, antifriction ball type?

14. 3.2.6.2.3. How are bearing lubricated? __________________

15. 3.2.6.2.3. What is the static load rating of each bearing? _____________________________________

16. 3.2.6.2.3. How are bearings mounted in the roller?

17. 3.2.6.3. What is the height and inside width of the roller frames? _______________________________

18. 3.2.6.4.1. Will deflectors be installed at the beginning of each roller section of the conveyor lane at the forklift interface?

19. 3.2.6.4.2. Will fork tine frame protectors be provided as specified?

JB Charleston – Gravity Roller Conveyor TPQ – Page 3 of 4

20. 3.2.6.4.3. Will safety ramps be installed to prevent shear points where 463L gravity roller conveyor interfaces with the ball transfer conveyor?

21. 3.2.7. How far above the conveying surface do pallet stops extend? ________________________________

22. 3.2.7. Are all pallet stops and their supporting surfaces designed to withstand impact without damage as specified?

23. 3.2.7.1. How many individual removable pallet stops will be provided for the system? _____________

24. 3.2.7.1. What are the dimensions of the removable pallet stops? ________________________________

25. 3.2.7.2., AF Drawing

BCH105-01

How many fixed pallet stops will be provided for the system? ______________________________

26. 3.2.8. Will shims be provided at each anchor point?

27. 3.2.8. Will each conveyor frame and guide rail be anchored in a minimum of two places?

28. 3.2.9. Will spare parts be provided as specified?

JB Charleston – Gravity Roller Conveyor TPQ – Page 4 of 4

EXCEPTIONS

Attach any exceptions taken to the Purchase Description

Appendix. Please outline those concerns in detail. Your exceptions will be reviewed to determine acceptability.

Are exceptions taken? YES NO

Number of pages attached: ____________________________________