Related Manuals for Renfroe R Clamp
Summary of Contents for Renfroe R Clamp
- Page 1 WARNING: Before putting tool in service, take to your immediate supervisor. RENFROE Model R Model RO Model R/RO Clamp Application, Operation and Maintenance Manual OM 480-R RO...
- 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, J.C. RENFROE & SONS,...
- 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 1. DO Consult Operator’s Manual or RENFROE when in doubt. RENFROE factory representatives are available upon request at no charge to train and assist in establishing the proper use of RENFROE products. 2. DO Lock clamp closed before lifting load. NEVER 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-...
- Page 7 RENFROE. RENFROE before using clamps in temperatures other than shown. RATED CAPACITY: The rated capac- ity of a RENFROE product is based on “HOT LIFTS”: The Model R and S the product being in “new or as new” clamps are available in modifications...
- Page 8 An attempt is made herein to Series. warn against reasonable and reasona- bly foreseeable danger in the proper “LOCKING WEDGE” - is a fluted steel use and possible reasonable misuse of wedge that is driven in place with a RENFROE products described in this manual.
- Page 9 DESIGNATED PERSON — A person selected by the employer or the em- ployer’s representative as being compe- tent to perform those specific duties. QUALIFIED PERSON — A person who, by possession of a recognized degree in an applicable field or certificate of profes- sional standing, or who, by extensive knowledge, training, and experience, has...
- Page 10 MODEL R VERTICAL LIFTING LOCKING MODEL RO VERTICAL LIFTING LOCK OPEN ONLY Application R/RO The Model “R” is a vertical lifting clamp primarily used in the handling of heavy steel plates in a wide range of plate thicknesses. Specific models are available for han- dling “hot”...
- Page 11 Operation R/RO Step 1. Before using any RENFROE clamp, refer to the Application Section to confirm the operation to be undertaken is an appropriate application for this product. Step 2. Select appropriate capacity and plate thickness. The model designation, capacity and plate thickness are stenciled on each clamp.
- Page 12 Step 4. The clamp is a component of the rigging used in lifting or transporting a plate. It is important to use safe and adequate rigging. The lock is used to hold the clamp in place until the gripping mechanism is actuated by a force applied to the lifting shackle.
- Page 13 Illustration B Step 6. Position clamp on plate to be lifted. Always position clamp on plate so die block (swivel jaw) is in contact with plate before locking mechanism is actu- ated. Do not allow inside of jaw opening to rest on edge of plate. Maintain 1/2”...
- Page 15 Step 7. Make certain the swivel jaw or die block and gripping cam are fully in contact with the plate and not partially on and off the edge of the plate. Step 8. Model with “Lock Open-Lock Closed” feature: Place lock lever in “Lock Closed”...
- Page 16 R 50 Ton—6” plate variation—three tension positions. First two inches of plate thickness use maximum tension position. Second two inches of plate thickness use intermediate tension position. Third two inches of plate thick- ness use minimum tension position. Example: Clamp rated 6” to 12” plate thickness use maximum tension on plates 6”...
- Page 17 WARNING: In the event the stenciling is worn and not legible or the tag containing the model, capacity or other pertinent information is miss- ing—do not use clamp until it has been properly labeled. Maintenance R/RO Inspection Kits are available at no charge upon request from the distributor or RENFROE. Kit contains:...
- Page 18 The frequency and type of inspection is determined by the clamp owner. Renfroe acknowledges the ASME B30.20 safety standard which sets forth mini- mum inspection requirements for “Below-the-Hook” lifting devices and the Renfroe Recommended Inspection Schedule meets and/or exceeds the ASME inspection recommendations.
- Page 19 If, during 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 determination as to its fitness to make a lift. At this time the condition of the clamp should be noted and recorded.
- Page 20 Frequency identification Device) is embedded in the clamp body or a clamp component. If the identification plate is missing and the RFID chip is unavail- able call the Renfroe factory for instructions on returning the clamp for recertifi- cation. Step 2.
- Page 21 Step 4. LOCK ASSEMBLY, CAM FOLLOWER and BEARING R-1, R-11 and R-12 A. Inspect lock pawls and lock handle for damage and wear. Refer to ex- ploded view. B. Inspect lock assembly pivot shaft mounted on right lock pawl for wear. Bearing, R-12 must fit snugly over shaft.
- Page 22 Step 7. CAMSTRAP ASSEMBLY R-4 A. Inspect welds, internal and external surfaces for fractures, wear and dis- tortion. B. Inspect all pin holes for wear and elongation. WARNING: Replace cam strap assemblies that are distorted, contain fractures and have worn or elongated pin holes. Step 8.
- Page 23 C. Die blocks (swivel jaws) are also available for “Hot Lifts”. These are iden- tified by two holes 3/16” diameter and 1/2” deep in the gripping surface. “Hot Lift” die blocks (swivel jaws) are painted red at the time of shipment. Refer to exploded view.
- Page 24 WARNING: All retaining pins and fasteners must be in place. GENERAL RENFROE products may be returned to the factory for inspection and repair in accordance with an established fee schedule. Use only RENFROE replacement parts to insure maximum efficiency and safety factor originally built into the product.
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Page 26: Exclusion Of Warranty
YOND THE DESCRIPTIONS OR STATEMENTS 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 - 904/356-4181 Facsimile: 904/354-7865 · Internet: www.jcrenfroe.com...
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