Renfroe S 12 Application, Operation And Maintenance Manual Download Page 13 | Manualshive

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Position clamp so that the direction of force applied by the crane is in line with
the lifting shackle.

WARNING: Never exceed 10 degree side-loading.

Refer to Photographs C, D, E, F and G.

Step 7.
Move lock handle to “Lock Closed” position after making certain the swivel
jaw and gripping cam are fully in contact with the plate and not partially on
and off the edge of the plate. Lock Pawl must rest on body bolt spacer
sleeve. Spring now exerts force on gripping cam. Refer to Illustration A, Step
5, and Photograph H.

WARNING: Lift only when clamp is in “Lock Closed” position.

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Summary of Contents for S 12

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

Page 2: ...INCORPORATED 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 INCORPORATED Jacksonville Florida 32201 Telephone 904 356 4181 Toll Free 1 800...

Page 3: ...H IS NOT SPECIFICALLY AND PARTICULARLY CONTAINED HEREIN PLEASE REFER TO THAT STATEMENT FOR REPRESENTATIONS AND WARRANTIES OF PRODUCTS MANUFACTURED BY J C RENFROE SONS INC 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 an...

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: ...tes positioned horizontally to the floor level The rigging attached to clamps is generally multi legged slings with the connecting point of the slings being approximately centered between the distance separating the clamps Refer to illustrations shown below WARNING The capacity of all hori zontal clamps is based on a sling angle of sixty degrees 60 See illustration below Sling angles less than six...

Page 7: ...er use a clamp on a member whose thickness is less than or greater than the range of jaw opening stenciled on the clamp OPERATING TEMPERATURES Unless specified under the Application Section of the individual model the approved operating temperature of RENFROE clamps is from zero de grees Fahrenheit 18 Celsius to a maximum of 200 degrees Fahrenheit 93 degrees Celsius The minimum and maximum tempera...

Page 8: ...KING 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 clamp...

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: ...ck Closed feature which facilitates attaching and removing the clamp from the plates Refer to Definition Pages for the explanation of Lock Open Lock Closed Refer to exploded view of clamp located at the end of the Maintenance Sec tion for identification of component parts WARNING Refer to the sections on operation and maintenance for the approved procedure in the operation and maintenance of this ...

Page 11: ... missing or illegible C Inspect gripping surfaces for wear and defects The gripping surfaces must be sharp and free of foreign matter D Swivel jaw should turn freely Inspect swivel jaw mounting hole in body for elongation indicating overloading or wear E Inspect lifting shackle and all pins for wear and damage F Lock spring must have definite amount of tension when the lock is moved to the Lock Cl...

Page 12: ...Step 6 Install clamp on plate to be lifted Do not allow inside of jaw opening to rest on plate Maintain 1 4 clearance Refer to Illustration A Step 5 and Photo graph B ...

Page 13: ... G Step 7 Move lock handle to Lock Closed position after making certain the swivel jaw and gripping cam are fully in contact with the plate and not partially on and off the edge of the plate Lock Pawl must rest on body bolt spacer sleeve Spring now exerts force on gripping cam Refer to Illustration A Step 5 and Photograph H WARNING Lift only when clamp is in Lock Closed position ...

Page 14: ...on nel are clear of the area of the lift Never stand under or near a member being lifted Refer to Photograph J Step 9 To remove clamp after plate is fully supported and at rest in a stable posi tion relax lifting force keeping hands clear move the lock handle to the Lock Open position lift clamp from plate Refer to Illustration A Step 5 and Pho tograph K ...

Page 15: ...ertinent information is miss ing do not use clamp until it has been properly labeled Inspection Kits are available at no charge upon request from the distributor or RENFROE Kit contains RENFROE clamps are constructed so the wearing parts may be replaced by installing individual parts or by using RENFROE Rebuild Kits containing all parts generally replaced due to normal wear ...

Page 16: ...wing Every lift Inspection A visual inspection by the operator before and after each lift made by the clamp Check the clamp to be certain the Identification and warn ing 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 surfaces must be smooth and free of foreign matter Swivel jaws should turn freely Inspe...

Page 17: ...aged 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 recorded After inspection by the qualified person it may be decided that a periodic inspection proce dure is necessary Periodic Inspection A recorded inspection by a qualified person as described in the Periodic In spect...

Page 18: ...ip Radio Fre quency Identification Device is embedded in the clamp body or a clamp component If the I D plate is missing and the RFID chip is unavailable call the Renfroe factory for instructions on returning the clamp for recertification Step 2 Completely disassemble clamp Step 3 Remove all dirt grease and other matter that may inhibit proper inspection of the clamp body or clamp components Step ...

Page 19: ...n sions equal or exceed those listed on this chart WARNING Replace clamps containing fractures elongated pin holes worn or elongated swivel jaw mounting hole distorted jaw openings clamp bodies with worn and rough shackle pin guide slots and jaw open ings with displaced metal Step 4 LOCK ASSEMBLY S 21 A Inspect for damage and wear B Inspect lock handle for binding particularly when moving lock han...

Page 20: ...and free of foreign matter B Inspect cam straps for distortion and fractures Refer to exploded view C Inspect pin holes in cam straps and cam for elongation and wear WARNING Replace cam assemblies that have cams with worn or dam aged teeth contain fractures and cams and cam straps with elongated pin holes Step 7 TOP ROLLERS S 24 4 Ton capacities and above A Inspect top rollers for damage and wear ...

Page 21: ...cess before installing swivel jaw Recommended lubricant is powdered graphite or Molybdenum Disulfide grease Tighten screw and lock nut then reverse nut one turn to allow free rotation of the swivel jaw WARNING Replace worn dull or damaged swivel jaws Step 12 BODY BOLT and BODY SPACER SLEEVE S 30 A Inspect body bolts and spacer sleeves for wear at position where sleeves contact shackle B Inspect bo...

Page 22: ...omponent parts in any manner In the event the stenciling is worn and not legible or the tag containing the model capacity or other pertinent information is missing do not use clamp until it has been properly labeled EXCLUSION OF WARRANTY THERE EXISTS NO WARRANTIES NEITHER EX PRESSED NOR IMPLIED WHICH EXTEND BE YOND THE DESCRIPTIONS OR STATEMENTS CONTAINED IN THE FACE OR ANY PART HEREOF J C RENFROE...

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