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Summary of Contents for Renfroe 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 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, Inc., Jacksonville, Florida 32201. J.C. RENFROE & SONS, INCOR- J.C.
- Page 3 DESCRIBED OR CONTAINED HEREIN. 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- cation of RENFROE products.
- Page 5 2. DO Consult Operator’s Manual or RENFROE when in doubt. 3. DON’T Lift over workmen DON’T lift over Safety Areas or personnel. 4. Do attend a factory training class for establishing proper use of Renfroe Products. 5. DO Lock clamp closed before lifting load. DON’T lift with lock in open or “Lock Open”...
- Page 6 For applications not covered by the above information, secure written rec- ommendations from RENFROE. FINISHED AND POLISHED PLATES: Steel plates in this category have other than hot-rolled surfaces such as stainless steel, etc., are generally han- dled using non-marring clamps incorpo- rating smooth gripping surfaces.
- Page 7 Secure written authorization from RENFROE RATED CAPACITY: The rated capacity before using clamps in temperatures of a RENFROE product is based on the other than shown. product being in “new or as new” condi- tion and represents the maximum load “HOT LIFTS”:...
- Page 8 An attempt is made herein to warn against reasonable and reasonably “LOCKING WEDGE” - is a fluted steel foreseeable danger in the proper use wedge that is driven in place with a and possible reasonable misuse of RENFROE products described in this manual.
- Page 9 DESIGNATED PERSON — A person se- lected by the employer or the employer’s representative as being competent to per- 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...
- Page 10 MODEL RSC ROTATING SCREW CLAMP APPLICATION RSC The Model RSC Clamp is a vertical lift clamp capable of lift and turn operations from the horizontal through 180 degree arc. The sus- pended load may also be rotated 360 degrees about the vertical axis.
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Page 12: Operation
OPERATION Step 1. Before using any RENFROE clamp, refer to the Application Section to confirm that the operation to be undertaken is a n appropriate application for this product. Step 2. Select the appropriate capacity and thickness range. The model desig- nation, capacity and thickness range are stenciled on each clamp. - Page 13 Position clamp such that the direction of force applied by the crane is in line with the lifting shackle. WARNING: On Model RSC never exceed ten degrees side load- ing. Refer to Illustrations D and E on the following pages.
- Page 14 Step 6. Tighten screw making certain that both gripping surfaces are parallel to the surface of the member being lifted and 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.
- Page 15 the clamp’s position on the member before resuming lift. WARNING: Apply required torque on screw. Do not over tighten. Step 7. Commence lift. WARNING: The operator should position himself away from and fully clear of the member to be lifted. Do not commence lift until all personnel are clear of the area of the lift.
- Page 16 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 replaced due to normal wear.
- Page 17 The frequency and type of inspection is determined by the clamp owner. Renfroe acknowledges the ASME B30.20 safety standard which sets forth minimum inspection requirements for “Below-the-Hook” lifting devices and the Renfroe Recommended Inspection Schedule meets and/or exceeds the ASME inspection recommendations.
- Page 18 WARNING: Do not use the clamp if in need of repair. If, during the every 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 determination as to its fitness to make a lift.
- Page 19 Warning: If any hazardous condition is found that may cause injury to the operator or other personnel then the clamp should be subjected to a Periodic Inspection by a Qualified Person. Repair (replacement of worn parts) During regular maintenance when replacing parts that are worn a record should be made of the parts replaced.
- Page 20 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 recerti- fication. Step 2.
- Page 21 C. Inspect the wave spring retaining groove. Groove must be free of displaced metal, worn edges and foreign matter. WARNING: Replace screws that bent, have distorted and worn threads, contain fractures, or have worn retaining spring grooves. Step 6 SCREW CUP A.
- Page 22 spring is not properly sealed or the screw cup and/or screw retaining groove is worn beyond acceptable limits. E. Check screw cup for proper operation. Screw cup must rotate freely in the screw and swivel 3 degrees in all directions. Spring must return screw to “centered”...
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Page 23: Handle Assembly
D. Attempt to remove swivel jaw from swivel block by hand. Swivel jaw should move approximately 1/16” as the spring compresses. If the swivel jaw can be removed by hand, either the spring is not properly seated or the swivel jaw and/or swivel block retaining groove is worn beyond acceptable limits. -
Page 24: Exclusion Of Warranty
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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