Renfroe LPA Application, Operation And Maintenance Manual Download Page 2 | Manualshive

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This Operator’s Manual covers the Application, Operation
and Maintenance of this RENFROE product. Operator’s
Manuals for other current RENFROE products are available
upon request. Direct requests to J.C. Renfroe & Sons Jack-
sonville, Florida 32201.

Operators

Manual

J.C. RENFROE & SONS

of Jacksonville, Florida, has
been an international leader
in the manufacture and mar-
keting of Lifting Clamps for
over fifty years.

RENFROE

products are manufactured
in Jacksonville, Florida. A
worldwide network of stock-
ing distributors provides a
readily available source of
supply and service

.

J.C. RENFROE & SONS

Jacksonville, Florida 32201
Telephone: 904/356-4181
Toll Free: 1-800-874-8454
Fax: 904/354-7865

www.jcrenfroe.com

Copyright © 2001 J.C. Renfroe & Sons

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Summary of Contents for LPA

Page 1: ...WARNING Before putting tool in service take to your immediate supervisor Model LPA Clamp Application Operation and Maintenance Manual OM LPA 115 RENFROE Model LPA ...

Page 2: ...RENFROE SONS of Jacksonville Florida has been an international leader in the manufacture and mar keting of Lifting Clamps for over fifty years RENFROE products are manufactured in Jacksonville Florida A worldwide network of stock ing distributors provides a readily available source of supply and service J C RENFROE SONS Jacksonville Florida 32201 Telephone 904 356 4181 Toll Free 1 800 874 8454 Fax...

Page 3: ...PECIFICALLY AND PARTICULARLY CONTAINED HEREIN PLEASE REFER TO THAT STATEMENT FOR REPRESENTATIONS AND WARRANTIES OF PRODUCTS MANUFACTURED BY J C RENFROE SONS WARNING Prior to selection operation and or maintenance of RENFROE products read and understand the infor mation provided in this manual The understanding and use of the Definitions are important in determining the limitations and proper appli...

Page 4: ......

Page 5: ...t light loads 9 DO Use an adequate number of clamps to balance load DON T lift loads that are not balanced 10 DO Use clamps within their rated capacity DON T overload clamps 11 DO Inspect clamp before each lift follow inspection and maintenance in structions outlined in this manual and use RENFROE replacement parts to assure proper operation of the clamp 12 DON T Use clamp that has been overloaded...

Page 6: ...alf rated capacity of clamp refer to illustrations shown be low STEEL PLATES Unless otherwise specified lifting clamps are manufac tured to handle hot rolled steel plates whose Brinell Hardness does not ex ceed 300 WARNING Do not lift plates with coatings or mill scale that prevent the gripping surfaces of the clamp from making positive contact with the base metal For applications not covered by t...

Page 7: ...ps is from zero de grees Fahrenheit 18 Celsius to a maximum of 200 degrees Fahrenheit 93 degrees Celsius The minimum and maximum temperatures apply to both ambient and the material being handled by the clamp WARNING Secure written authori zation from RENFROE before using clamps in temperatures other than shown LOCK OPEN LOCK CLOSED an over center spring loaded mechanism in which the spring exerts ...

Page 8: ...rform those specific duties QUALIFIED PERSON A person who by possession of a recognized degree in an applicable field or certifi cate of professional standing or who by extensive knowledge training and experience has successfully demon strated the ability to solve problems relating to the subject matter at hand ...

Page 9: ...ing from the Lock Closed position until the auxiliary lock button is manually de pressed The Lock Open Lock Closed feature facilitate attaching and removing the clamp from the plate Refer to Definition Pages for explanation of Lock Open Lock Closed clamp A pivoting shackle is included on the LPA clamp Refer to Illustration B WARNING Refer to Load Chart showing de rating of rated capaci ty based on...

Page 10: ...e is in the horizontal position It should be noted at the finish of a 180 degree turn that the lock handle will be on the underside of the plate and therefore sufficient clearance under the plate should be allowed for the lock to be disengaged Refer to the sec tions on Operation and Maintenance for the approved procedures in the Operation and Maintenance of this product Illustration A Illustration...

Page 11: ...not use if in need of repair A Check the clamp to be certain the identification and warn ing tags are present and legible B Do not use the clamp if the tags are missing or illegible C Inspect gripping surfaces for wear and defects Gripping surfaces must be sharp and free of foreign matter D Inspect condition of body for wear damage and distortion particu larly in the area of the jaw opening E Insp...

Page 12: ...ock Handle WARNING Do not use clamp unless auxiliary lock is fully en gaged and auxiliary push button is flush with top of lock handle The Lock Button for the Auxiliary Lock is spring loaded and is mounted in the clamp body WARNING Do not use clamp unless lock button spring extends button to fully engage auxiliary release button when lock handle is in Lock Closed position Illustration C ...

Page 13: ... applied to the lifting shackle WARNING Improper or excessively heavy rigging may interfere with the operation of the clamp and its ability to maintain a proper position on the plate Never attach crane hook directly to the clamp always use a flexible sling between crane hook and clamp Step 5 Move the lock lever to the Lock Open position Gripping cam is main tained in retracted position Refer to il...

Page 14: ...tep 8 Place the lock lever in the Lock Closed position Lock Pawl must rest on body spacer sleeve Spring now exerts force on gripping cam On model LPA make certain the auxiliary lock button projects from the housing and fully engages the lock handle Refer to Illustration M WARNING Lift only when clamp is in Lock Closed position Step 9 Commence lift WARNING The operator should position himself away ...

Page 15: ...ustrations C and D Step 5 Step 11 Inspect clamp Remove from service if in need of repair WARNING In the event the stenciling is worn and not legible or the tag containing the model capacity and other pertinent infor mation is missing do not use clamp until it has been properly la beled Renfroe will replace tag at no charge upon request Inspection kits are available at no charge upon request from t...

Page 16: ...on A visual inspection by the operator before and after each lift made by the clamp A Check the clamp to be certain the identification and warning tags are present and legible B Do not use the clamp if the tags are missing or illegible C Inspect gripping surfaces for wear and defects Gripping sur faces must be sharp and free of foreign matter D Inspect condition of body for wear damage and distort...

Page 17: ... frequent inspection the operator or designated person believes the clamp exhibits excessively worn parts or is damaged the clamp should be inspected by a qualified person who will make a determination as to its fitness to make a lift At this time the condition of the clamp should be noted and rec orded After inspection by the qualified person it may be decid ed that a periodic inspection procedur...

Page 18: ...he parts replaced After the replacement of worn parts clamps need not be load tested Repair replacement of damaged parts During a repair in which parts are replaced due to damage a record should be made of the repair At this time the clamp should be marked with the following information as per the ASME B30 20 requirements Name and address of the repairer Repairer s unit identification Clamp weight...

Page 19: ... holes for wear and elongation B Inspect inside jaw opening for displaced metal and distortion C Inspect clearance of lock handle assembly mounting hole for wear Clearance with shaft of lock handle assembly should be minor Mounting holes that are worn oversized may cause the lock handle to malfunction Refer to exploded view WARNING Replace clamps containing fractures elongated pin holes worn or el...

Page 20: ... LPA 8 A Inspect swivel jaw for fractures damage and wear Serrations must be sharp and free of imperfections and foreign matter B Swivel jaw must turn freely in clamp During assembly insert lubri cant in body recess before installing swivel jaw Recommended lubricant is powdered graphite of Molybdenum Disulfide grease Make certain spiral pins are in place Warning Replace worn dull or damaged swivel...

Page 21: ...without binding The spring must be capable of maintain ing button in extended position WARNING Replace the auxiliary lock if damaged or the auxiliary lock button spring does not maintain the button in the extended position Step 11 LOCK SPRING LPA 7 A Inspect lock spring for distortion Spring must have a definite amount of tension when moved to the Lock Closed position with out material in the clam...

Page 22: ...and damaged bearings if supplied on clamp Step 13 ASSEMBLY After reassembly check operation of clamp All parts should move freely without binding Refer to exploded view for proper location of component parts WARNING All retaining pins and fasteners must be in place in cluding cam jaw washers where required GENERAL RENFROE products may be returned to the factory for inspection and refurbishment in ...

Page 23: ...LPA Exploded View These parts are included in Renfroe Repair Kit Swivel Jaw Center Block LPA 10 ...

Page 24: ...WHICH EXTEND BE YOND THE DESCRIPTIONS OR STATEMENTS CONTAINED IN THE FACE OR ANY PART HERE OF J C RENFROE SONS P O Box 4279 1926 Spearing Streeet Jacksonville Florida 32206 Phone U S A Toll Free 800 874 8454 in Florida 904 356 4181 Facsimile 904 354 7865 Internet www jcrenfroe com ...

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