Read Microsoft Word - User_Inspector Handout_02-19-10_use pdf.docx text version

"When Only The Best is Good Enough"

Sling User & Inspector Program

Presented By: Michael Gelskey LiftIt® Manufacturing Co., Inc. Hosted by:

Northwest Industrial Supply Inc.

Billings, MT February 8, 2011

20 ton hypobaric chamber

Hypobaric chamber lifts altitude studies - Billy VanKeuren sweeps beneath a 20-ton hypobaric chamber before it is lowered by a crane Wednesday at the Colorado Center for Altitude Medicine and Physiology at Fitzsimons. The $1Million chamber, donated by Metropolitan State College, will be used for high-altitude studies beginning in about a month.

Ladder in water

2

TODAY WAS JUST ANOTHER TYPICAL DAY AT WORK

Just Another Day

115 Million American workers went to work at 7 Million American work sites 17 were killed by traumatic injuries 137 died of occupational related illnesses 17,138 were injured The cost of the US economy 100 billion annually The cost to family and friends - IMMEASURABLE

· · · · ·

You've carefully thought out all the angles. You've done it a thousand times. It comes naturally to you. You know what you're doing, its what you've been trained to do your whole life. Nothing could possibly go wrong, right ?

3

Tensile to Tag

7500 LBS.

2 INCH

7500 LBS.

Minimum Ultimate Tensile Strength 15000 Residual Strength 12000 X X Manufacturing Efficiency .80 Design Factor 5 = = Residual Strength 12000 lbs. Vertical Work Load Limit 2400

= =

Choker Vertical Basket

1900 2400 4800

(Vertical x .80) (RS / 5) (Vertical x 2)

Sling Configuration Workshop ­ TUFXKS 2000

HI TCH CONFI GUATI ON WORKSHOP

Capacity _______

Capacity _______

Capacity _______

Capacity _______

Capacity _______

Capacity _______

Capacity _______

4

How To Determine Load Weight

Coal Hopper

Coal:

4 FT

56 LBS. Per Cubic Foot WxHxL = Volume 4 x 4 x 6 = 96 Cubic Feet

4 FT 6 FT

96 x 56 = 5376 Lbs. Of Coal

Hopper:

1in Steel Walls @ 40 LBS. Per Square Foot ENDS: 4 x 4 = 16FT x 2 = 32 Square Feet BOTTOM & SIDES: 4 x 6 = 24FT x 3 = 72 Square Feet TOTAL AREA = 104 Square Feet 104 x 40 = 4160 LBS. Steel COAL HOPPER TOTAL = 5376 LBS. = 4160 LBS. = 9536 LBS.

Center of Gravity

Definition

A majority of all crane and rigging accidents happen because of something below the hook. This is a strong indication that we need to become better educated in what is happening to the load and below the hook rigging. When rigging a load, it is always important to rig the load so that it is stable. In controlling a suspended load, the location of the center of gravity (CG) is vital. The CG is that point at which an object will balance. The CG of a load will try to do two things when suspended: (1) unless restrained it will move directly below its point of support, and (2) it will try to move to the lowest point possible. This means we must attach our slings and lifting devices accordingly. For the best control, attach the slings above the CG. When this is not possible, you must always keep the CG contained with three or more legs. This alone will not solve all your problems. A load with a high CG can rotate in some sling hitch configurations. When taking all these conditions into consideration, the load can be lifted safely with the assurance of controlling the load.

Unstable Lift point is below CG

Unstable Lift point is not above CG

Load will shift until CG is below lift point

Stable Lift point is above the CG

5

Calculating Center of Gravity From A to B

Another method of determining the center of gravity is to weigh both ends and measure the distance between the supports or attachment points. This method will provide a total weight slightly heavier that the actual load weight and will provide a very close approximation of the center of gravity.

VERT "A" = 5000 LBS.

Center of Gravity (From point "A" to "B")

VERT "B" = 15,000 LBS.

VERT "B" X (VERT "A" + VERT "B) D

"D" = 20FT

=

Center of Gravity (From point "A" to "B")

=

(

+

)

X

20 =

______

A

B

D

Calculating Center of Gravity From B to A

Another method of determining the center of gravity is to weigh both ends and measure the distance between the supports or attachment points. This method will provide a total weight slightly heavier that the actual load weight and will provide a very close approximation of the center of gravity.

VERT "A" = 5000 LBS.

Center of Gravity (From point "B" to "A")

VERT "B" = 15,000 LBS.

VERT "A" X (VERT "A" + VERT "B) D

"D" = 20FT

=

Center of Gravity (From point "B" to "A")

=

(

+

)

X

20 =

______

A

B

D

6

Leg Loading

1 Leg 2 Legs 3 Legs 4 Legs

* If the legs are:

1) Equidistant from each other 2) Equidistant from the CG 3) The same exact length

Loads Loads Loads Loads

1 Leg 2 Legs 3 Legs* 2 Legs*

Load Weight Distribution 50/50

Load Weight Distribution

Determine the distribution of weight per lift point, in percentages.

3' 3' 5' 5'

7

Load Weight Distribution 50/25/25

Load Weight Distribution

Determine the distribution of weight per lift point, in percentages.

3' 3' 5' 5'

Load Weight Distribution 25/25

Load Weight Distribution

Determine the distribution of weight per lift point, in percentages.

3' 3' 5' 5'

8

LAF Pg 15

Share of the Load x LAF (L H) 20

= 12.5 = =

Sling Tension

12.5ft (H)

20ft (L)

LAF Pg 18

Share of the Load x LAF (L H) 13

= 10 =

Sling Tension

=

10ft (H)

13ft (L)

90,000 lbs.

9

LAF Pg 21

LAF for Offset Center of Gravity Sling A Sling B

Sling B

Sling A

x 100,000 =

x 100,000 =

lbs. Share of Load

lbs. Share of Load

3ft 10ft

7ft

LAF Pg 22

6 ft. Leg

Share of the Load x 55,000 X = X 5ft(H) 6ft (L) 10.5ft (L)

LAF

Sling Tension

L H

=

=

10.5 ft. Leg

Share of the Load x 55,000 = X

3ft 9ft 12ft

LAF

Sling Tension

L H

X

=

=

10

Load Angle Factors Attached Different Horizontal Planes

LAF @ diff. HZ planes

13 ft. Leg Sling Loading

W x d² x L¹ (d² x H¹) + (d¹ x H²) 14,600 x 12 x 13 (12 x 11.5) + (6 x 16)

20 ft. Leg Sling Loading

W x d¹ x L² (d² x H¹) + (d¹ x H²) 14,600 x 6 x 20 (12 x 11.5) + (6 x 16)

2,277,600 234

14,600 lbs.

1,752,000 234

9,733 lbs.

7,487 lbs.

NonSymmetrical Bridle Sling Formula

Sling A

Load x D2 x L1 (D2 x H1) + (D1 x H2) 30,000 x 7 x 24 (7 x 17.5) + (16.2 x 5.2) 5,040,000 = 24,378 lbs. 206.74

L1 = 24 ft L2 = 10 ft

D1 = 16.2 ft D2 = 7ft

H1 = 17.5 ft H2 = 5.2 ft

H2

Sling B

Load x D1 x L2 (D2 x H1) + (D1 x H2) 30,000 x 16.2 x 10 (7 x 17.5) + (16.2 x 5.2) 4,860,000 = 23,508 lbs. 206.74 D1

H1

D2

30,000 lbs.

11

Three Ingredients to Successful Rigging

· Do not exceed the work load limit of the sling(s) · Do not use a damaged sling or allow the sling to become damaged during the lift · You Must control the load All three of these ingredients must be present, simultaneously, or You Relinquish Control to Your Own Destiny.

Factors To Avoid

F actor s to Avo Over view id

·Shock Loading

·Side Loading ·Dragging

·Dropping

·Pulling Out From Under The Load ·Don't Place Your Body Parts Between the Load and the Sling ·Never Under On Near ·Be Alert for Snagging ·Plan Your Work and Work Your Plan

12

Web Sling Identification Requirements

Web Tag Requirements OSHA

O.S.H.A ­ Guidance on Safe Sling Use

Synthetic Web Slings - Identification Identification: New slings are marked by the manufacture to show: ·The rated load for each type of hitch, and ·The type of synthetic web material. In addition, slings may be marked to show: ·The manufacturer's code or stock number, and ·The name or trademark of the manufacturer.

Web Sling Identification Requirements

Web Tag Requirements ASME

ASME B30.9 2006

SECTION 95.7: SLING IDENTIFICATION

95.7.1 Each sling shall be marked to show: a) name or trademark of manufacturer b) manufacturer's code or stock number c) rated loads for the type(s) of hitch(es) used and the angle upon which it is based d) type of synthetic web material e) number of legs, if more than one 95.7.2 95.7.3 Initial Sling Identification Sling identification shall be done by the sling manufacturer. Maintenance of Sling Identification Sling identification should be maintained by the user so as to be legible during the life of the sling.

13

Web Sling Removal From Service Criteria

Webbing RFS OSHA

O.S.H.A ­ Guidance on Safe Sling Use

Synthetic Web Slings Inspection Make a thorough inspection of slings and attachments. Items to look for include: · · · · · · · · · · Missing or illegible sling identification, Acid or caustic burns, Melting or charring of any part of the sling, Holes, tears, cuts, or snags, Broken or worn stitching in load bearing splices, Excessive abrasive wear, Knots in any part of the sling, Discoloration and brittle or stiff areas on any part of the sling, Pitted, corroded, cracked, bent, twisted, gouged, or broken fittings, and Other conditions that cause doubt as to continued use of a sling.

Where any such damage or deterioration is present, remove the sling or attachment from service immediately.

Web Sling Removal From Service Criteria

Webbing RFS ASME

ASME 95.9.4 REMOVAL FROM SERVICE CRITERIA

A synthetic webbing sling shall be removed from service if conditions such as the following are present:

a) Missing or illegible sling identification. Section 95.7.1 requires that each sling be marked to show the following:

1) name or trademark of the manufacturer 2) manufacturer's code or stock number 3) rated loads for the type(s) of hitch(es) used and the angle upon which it is based 4) type of synthetic material 5) number of legs, if more than one b) Acid or caustic burns c) Melting or charring of any part of the sling d) Holes, tears, cuts or snags e) Broken or worn stitching in the load bearing splices f) Excessive abrasive wear g) Knots in any part of the sling h) Discoloration and brittle or stiff areas on any part of the sling, which may mean chemical or ultraviolet/ sunlight damage. i) Fittings that are pitted, corroded, cracked, bent, twisted, gouged or broken j) For hooks, removal criteria as stated in ASME B30.10 k) For rigging hardware, removal criteria as stated in ASME B30.26 l) Other conditions, including visible damage, that cause doubt as to the continued use of the sling.

14

Round Sling Identification Requirements

RS Tag Requirements OSHA

O.S.H.A ­ Guidance on Safe Sling Use

Synthetic Round Slings Identification Identification: New slings are marked by the manufacture to show: ·The rated load for the types of hitches, and the angle upon which they are based, ·The core material, and ·The cover material if different from core material. In addition, slings may be marked to show: ·The name or trademark of the manufacturer, ·The manufacturer's code or stock number

Round Sling Identification Requirements

RS Tag Requirements ASME

ASME B30.9 2006

SECTION 96.7: SLING IDENTIFICATION

96.7.1 a) b) c) d) e) f) 96.7.2 96.7.3 96.7.4 Identification Requirements Each sling shall be marked to show: name or trademark of manufacturer manufacturer's code or stock number rated load for the type(s) of hitch(es) used and the angle upon which it is based core material cover material, if different from core material Number of legs, if more than one Initial Sling Identification Sling identification shall be done by the sling manufacturer. Maintenance of Sling Identification Sling identification should be maintained by the user so as to be legible during the life of the sling. Replacement of Sling Identification Replacement of the sling identification shall be considered a repair as specified in paras. 96.9.5(a) and (b). Additional proof testing is not required.

Manufacturers Recommendations: Slings will be marked internally to identify the manufacturer.

15

Round Sling Removal From Service Criteria

Round RFS OSHA

O.S.H.A ­ Guidance on Safe Sling Use

Synthetic Round Slings Identification Make a thorough inspection of slings and attachments. Items to look for include: · · · · · · · · · · Missing or illegible sling identification, Acid or caustic burns, Evidence of heat damage, Holes, tears, cuts, abrasive wear, or snags, that expose the core yarn, Broken or damaged core yarns, Welding splatter that exposes core yarns, Knots in the round sling body, except for core yarn knots inside the cover, Discoloration and brittle or stiff areas on any part of the sling, Pitted, corroded, cracked, bent, twisted, gouged, or broken fittings, and Other conditions that cause doubt as to the continued use of the sling.

Where any such damage or deterioration is present, remove the sling or attachment from service immediately.

Round Sling Removal From Service Criteria

Round RFS ASME ASME 96.9.4 REMOVAL FROM SERVICE CRITERIA

Slings shall be inspected throughout their entire length for evidence of damage. Core integrity is determined by a hand over hand inspection of the entire sling, combined with a thorough visual inspection. Round slings shall be removed from service if any of the following is visible: A) Missing or illegible work load limit tag, see section 96.7 B) Acid or caustic burns C) Evidence of heat damage D) Holes, tears, cuts, abrasive wear, or snags that expose the core yarns. E) Broken or damaged load yarns. F) Weld splatter that exposes load yarns G) Roundslings that are knotted. H) Fittings that are pitted, corroded, cracked, bent, twisted, gouged or broken I) For hooks, removal criteria as stated in ASME B30.10 J) For rigging hardware, removal criteria as stated in ASME B30.26 K) Other conditions, including visible damage that may cause doubt as to the continued use of the sling. MANUFACTURER'S RECOMMENDATIONS: 1) Broken or worn stitching in the cover which exposes the core yarns; 2) Bunched or wadded yarn; 3) Empty or void areas throughout the sling, determined through touch inspection, that do not contain an even or uniform distribution of load carrying yarns.

16

TwinPath Removal From Service Criteria

Slings shall be inspected throughout their entire length for evidence of damage. Core integrity is determined by TP RFS a hand over hand inspection of the entire sling, combined with a thorough visual inspection. TwinPath® Slings shall be removed from service if any of the following is visible:

A) Missing or illegible work load limit tag. B) Brittle or stiff areas that may indicate chemical damage, acid or alkali burns. C) Melting, charring or weld spatter of any part of the sling. D ) Holes, tears, cuts, embedded particles, abrasive wear, or snags that expose the load carrying yarns. E) Broken, cut or damaged load carrying yarns. F) Broken or worn stitching in the cover which expose the load carrying yarns. G) Fitting distortion: elongated, damaged, corroded or chemical degradation of fittings or component hardware. H) Slings that are knotted. I) Tattle tails if one or both of the tattle tails is not visible or is chemically degraded. J) FiberOptic Lack of fiber optic light transfer, in sling models with the fiber optic (FO) option. K) For slings equipped with FastTM Inspection: External Warning Indicator (EWI) is not visible L) For hooks, removal criteria as stated in ASME B30.10 M) For applicable fittings, removal criteria as stated in ASME B30.26 O) Other damage which causes any doubt as to the strength of the sling.

Slings removed from service that are not capable of repair shall be destroyed and rendered completely unfit for future use.

CheckFastTM Inspection System

EXTERNAL WARNING INDICATOR (EWI)

External Warning Indicator extends beyond the cover.

17

Check fast Cert

So at the end of the day

Everybody gets to go home

18

PLEASE PRINT

DATE

Sign In Sheet

Location

First Name

Last Name

Company Name

Address

City

State

Zip

Telephone Number

-

Fax Number

-

I want to receive email information about future training and product developments. Email Address

Check the box that best describes your company's primary market:

Aerospace (B) Electrical Utility (E1) Hardware and Webbing Sales (J) Marine (M) Mine and Industrial Supply (D1) Pipeline (D) Rigging Loft (R) Stage Rigging (A1) Utility Supply (F18) Wrecker/Towing (Y) Automotive Mfg. (A2) Export (E) Industrial Supply (I) Material Handling (O) Mining (F10) Power Generation-T&D (F4) Safety & Training (F6) Telecommunications (F7) Water Generation/Sanitation (F13) Construction (F8) Government Supply (G) Logging (L) Metal Service/Steel Mfg (N) OEM (X) Pulp and Paper (P&P) Safety Supply (S) Tower (F15) Welding Supply (W) Crane Rental/Service (F2) Government User (F11) Manufacturing (F5) Millright-Hauling-Rigging (F14) Oil (K) Railroad/Transportation F9 Ship Chandler (Z) Truck/Surface Transportation (T) Wind Power (F17)

NOTES FOR TRAINER:

19

Training Evaluation

Date ____________________ Location _______________________________________________ Training Course: ____Sling User ____Designated Inspector ____Advanced Rigging Please check the appropriate box: 1. Instructor's teaching effectiveness 2. Opportunity for interaction 3. Answers to participants questions 4. Instructors interest in whether students learned 5. Participants confidence in instructor's knowledge 6. Materials provided 7. Course organization 8. Major strong points of the training: Excellent Very Good Good Fair Poor

9. Areas where this training can be improved:

Your Name (optional): _____________________________________

20

Information

Microsoft Word - User_Inspector Handout_02-19-10_use pdf.docx

20 pages

Find more like this

Report File (DMCA)

Our content is added by our users. We aim to remove reported files within 1 working day. Please use this link to notify us:

Report this file as copyright or inappropriate

522180