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Summary of Contents for Renfroe WHSR
- Page 1 WARNING: Before putting tool in service, take to your immediate supervisor. RENFROE Model WHSR Clamp Application, Operation and Maintenance Manual OM 211-WHSR...
- 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 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 stain- less steel, etc., are generally handled...
- Page 7 FROE. RENFROE before using clamps in temperatures other than shown. RATED CAPACITY: The rated capaci- ty 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 “Non-Locking” clamps are Model AST, stalling the clamp on a plate or mem- ASTL, BD, HR, HDR and WHSR. ber. The Model FRD contains individu- WARNING: A pointing out and notice al “Lock Open” and “Lock Closed”...
- 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 The gripping cams are spring loaded to remain in the “Open” position until the load is applied. This feature permits the clamp to be easily applied and removed from the load. The model “WHSR” is a “Non- locking” clamp and requires constant tension applied to lifting shackle throughout the entire operation.
- Page 13 The model “WHSR”, rated individually, is used in pairs, multiples of pairs, or tripods. The “WHSR” has an adjustable jaw opening. When used in pairs or multiples, set all of the clamps at the same jaw opening whenever pos- sible or in such a manner that the plates being lifted remain horizontal and do not tilt.
- Page 15 Step 4 Inspect clamp before each lift. WARNING: Do not use if in need of repair. If in doubt, refer to Maintenance Section for detailed mainte- nance instructions and exploded view of the clamp for part iden- tification. A. Check the clamp to be certain the Identification and warning tags are present and legible.
- Page 16 Step 5. The clamp is a component of the rigging used in the lifting or transport- ing of plates. It is important to use safe and adequate rigging. Each clamp is manually held in place until the gripping mechanism of the clamp is activated by a force applied to the lifting shackle.
- Page 18 Step 8. Assemble the clamps on the plates so the edges of the plates are posi- tioned the full depth of the clamp footpads. Refer to Illustration A, Step 3 and Photograph H. Position the clamps so the direction of force applied by the crane is in line with the lifting shackles.
- Page 19 Step 9. Each person must make certain the gripping cams and lifting pads are fully in contact with the plates and not partially on and off the edge of the plates. Step 10. Each person must hold a clamp in place until lifting sling is tight enough to maintain clamps’...
- Page 20 Renfroe will replace tags at not charge upon request. For identification of component parts, refer to the exploded view of clamp located after Step 12.
- Page 21 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 22 WARNING: Do not use the clamp if in need of repair. If, during the every lift inspection, the operator or 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.
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Page 23: Periodic Inspection Procedures
ASME BTH-1 Design Category (if altered) ASME BTH-1 Service Class (if altered) RENFROE clamps are constructed so the wearing parts may be re- placed by installing parts or by using RENFROE Repair Kits contain- ing all parts generally replaced due to normal wear. - Page 24 .Step 4. BODY A. Inspect welds for fractures. RENFROE recommends a dye pene- trant or similar method of detecting indications on the clamp. If an indication is found it may be necessary to use a magnetic particle, ultrasonic or similar methods for determining damage to the clamp or components.
- Page 25 WARNING: Replace all components of the safety pin assembly that are worn or damaged, and springs that do not maintain safe- ty pin slide firmly extended. Step 9. SHACKLE PIN and CAM PIN WHSR-5 and WHSR-7 A. Inspect all pins for: 1. Distortion 2. Surface blemishes 3.
- Page 26 Inspect cams for fractures, particularly at the cam pin holes. B. The model ‘WHSR” is also supplied with gripping surfaces of the cams plated with stainless steel or bronze. Inspect cams for dam- age to bronze or stainless steel gripping surfaces.
- Page 27 Renfroe will replace tag at no charge upon request. *These parts are included in Renfroe Repair Kit.
- Page 28 PRESSED NOR IMPLIED WHICH EXTEND BE- YOND THE DESCRIPTIONS OR STATEMENTS CONTAINED IN THE FACE OR ANY PART HERE- 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)
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