Renfroe RSC Application, Operation And Maintenance Manual Download Page 1 | Manualshive

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WARNING:
Before putting tool in service, take
to your immediate supervisor.

RENFROE

Model RSC Clamp
Application, Operation and Maintenance Manual
OM 211-RSC

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Summary of Contents for RSC

Page 1: ...WARNING Before putting tool in service take to your immediate supervisor RENFROE Model RSC Clamp Application Operation and Maintenance Manual OM 211 RSC ...

Page 2: ...INCORPORATED of Jacksonville Florida has been an international leader in the manufacture and marketing of Lifting Clamps for over fifty years RENFROE products are manufactured in Jacksonville Florida A worldwide network of stocking distributors provides a readily available source of sup ply and service J C RENFROE SONS INCOR PORATED Jacksonville Florida 32201 Telephone 904 356 4181 Toll Free 1 800...

Page 3: ...standing and use of the Definitions are important in determining the limitations and proper appli cation of RENFROE products Failure to review and utilize recommended appli cations operation and maintenance instructions may result in serious injury to operator and others NOTICE OF EXCLUSION OF WARRANTY RENFROE HAS HEREIN SET FORTH IN CONSPICUOUS LANGUAGE AN EXCLUSION OF ANY WARRANTY EITHER EXPRESS...

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: ...level The rigging attached to clamps is gener ally multi legged slings with the con necting point of the slings being ap proximately centered between the dis tance separating the clamps Refer to illustrations shown below WARNING The capacity of all horizontal clamps is based on a sling angle of sixty degrees 60 See illustration below Sling angles less than sixty degrees 60 increase the load exerte...

Page 7: ...ss is less than or greater than the range of jaw opening stenciled on clamp OPERATING TEMPERATURES Unless specified under the Application Section of the individual model the ap proved operating temperature of RENFROE clamps is from zero degrees Fahrenheit 18 Celsius to a maximum of 200 degrees Fahrenheit 93 de grees Celsius The minimum and maximum temperatures apply to both ambient and the materia...

Page 8: ...OCKING WEDGE is a fluted steel wedge that is driven in place with a hammer The body of the wedge is positioned in a slot in the clamp body with the fluted edges contacting the member to which the clamp is being attached Refer to Operation Section of specific models of the Locking Wedge clamps for additional details Typical Locking Wedge clamps are Model A1 B1 B2 and PB Locking Screw Lock Screw cla...

Page 9: ...r form those specific duties QUALIFIED PERSON A person who by possession of a recognized degree in an applicable field or certificate of professional standing or who by extensive knowledge training and experience has successfully demonstrated the ability to solve problems relating to the subject matter at hand ...

Page 10: ...rtical axis Refer to additional instructions in the Op erations Section The adjusting screw is used to accommodate vari ous thicknesses of material and to facilitate attachment of the clamp to the member to be lifted Refer to Definitions Pages for explanation of Locking Screw clamp For identification of component parts refer to the detail drawings of the clamp at the end of the Maintenance Sec tio...

Page 11: ......

Page 12: ...e Section for detailed maintenance instructions and detailed drawings for clamp part identification 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 surfaces must be sharp and free of foreign matter The screw cup and swivel jaw should turn...

Page 13: ...h the operation of the clamp and its ability to maintain proper position on the member Never attach crane hook directly to the clamp Always use a flexible sling between the crane hook and the clamp Step 5 Position clamp on the member to be lifted Do not allow inside of the jaw opening to rest on the member to be lifted Maintain 1 4 clear ance Refer to Illustration C on the following page Position ...

Page 14: ...are not partially on and off the edge of the member Refer to Illustration C Using handle pro vided tighten the screw by applying 40 pounds of force Do not over tighten For applications where the member is repeatedly lifted repo sitioned or tension in the lifting force relaxed always recheck torque on the adjusting screw and ...

Page 15: ... lifted Do not commence lift until all personnel are clear of the area of the lift Never stand under or near a member being lifted Do not permit the member being lifted to contact adjacent structures or equipment Step 8 To remove clamp after load is fully supported and at rest in a stable position relax lifting force and loosen screw Lift clamp from plate Step 9 Inspect clamp Remove from service i...

Page 16: ... charge Inspection Kits are available at no charge by request from a distributor or RENFROE Inspection Kits contain Lifting Clamp Inspection Re port Forms Inventory and Maintenance Record Cards Danger Tags and monthly Inspection Stickers RENFROE clamps are constructed so the wearing parts may be re placed by installing individual parts or by using RENFROE Repair Kits containing all parts generally...

Page 17: ...Identification and warning tags are present and legible Do not use the clamp if the tags are missing or illegible Inspect gripping surfaces for wear and defects Gripping sur faces must be smooth and free of foreign matter The screw cup and swivel jaw should turn freely Set screw must not pro trude from either the screw cup pad or the swivel jaw pad Screw should turn freely Inspect for wear and dam...

Page 18: ...ing the frequent lift inspection the operator believes the clamp exhibits excessively worn parts or is damaged the clamp should be inspected by a qualified person who will make a de termination as to its fitness to make a lift At this time the condi tion of the clamp should be noted and recorded After inspec tion by the qualified person it may be decided that a periodic inspection procedure is nec...

Page 19: ...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 20: ...cessary to use a magnetic particle ultrasonic or similar methods for determin ing damage to the clamp or components B Inspect surfaces of the body plate that come into contact with the shackle yoke for wear damage or distortion C Inspect shackle screw hole for wear and elongation D Inspect inside of swivel jaw block for displaced metal frac tures or distortion Inspect condition of wave spring reta...

Page 21: ...of imperfections and foreign matter Retain ing spring groove must be free of displaced metal worn edges or foreign matter WARNING Replace worn dull or damaged screw cups C To install screw cup insert lubricant into the recess of the screw The recommended lubricant is Molybdenum Disulfide grease In stall new wave spring into retaining groove of the screw cup The spring must be fully retained in the...

Page 22: ...g Do not attempt to reas semble clamp with old spring Always install new wave spring af ter disassembly of swivel jaw B Inspect swivel jaw for fractures damage and wear Serrations must be sharp and free of imperfections and foreign matter Retaining spring groove must be free of displaced metal worn edges and for eign matter WARNING Replace worn dull or damaged swivel jaws C To install swivel jaw i...

Page 23: ...er the swivel jaw remove clamp from service until the unit is properly repaired Step 8 SHACKLE SCREW A Inspect shackle screw for distortion surface blemishes wear and fractures WARNING Replace shackle screw that is distorted bent has sur face scars is worn or contains fractures Step 9 HANDLE ASSEMBLY A Inspect handle for distortion or damage B Make certain that the retaining spiral pins are instal...

Page 24: ...ICH EXTEND BEYOND THE DESCRIPTIONS OR STATE MENTS CONTAINED IN THE FACE OR ANY PART HEREOF J C RENFROE SONS INC 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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