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Before putting tool in service, take the manual to your supervisor. MODEL BC & MODEL NMBC CLAMPS APPLICATION, OPERATION, AND MAINTENANCE MANUAL FALL ARREST Now also meets OSHA 1926 Subpart M, OSHA 1910.140, ANSI Z359.1, and ANSI A10.32-2012 requirements for fall protection.
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RENFROE™ products. Operator’s Manuals for other current RENFROE products are available upon request. Model BC is a standard beam clamp and can be used as such. It also meets the requirements for use as part of a fall protection system. Model NMBC is the non-marring version of the same clamp.
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Notice of Exclusion of Warranty RENFROE has herein set forth in conspicuous language an exclusion of any warranty, either expressed or implied, which is not specifically and particularly contained herein. Please refer to that statement for representations and warranties of products manufactured by RENFROE.
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DON’T attach DO consult clamp directly the Operators to crane hook Manual or or use a RENFROE when heavy flexible in doubt. connection. DO attend a DO use a flexible RENFROE factory connection training class to between...
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DO use only DON’T misuse RENFROE DON’T (i.e. replacement lift plate from parts to assure REPAIR bottom of proper operation plate stack). J.C. RENFROE & SONS, INC. of the clamp. 200 STATE STREET BELOIT, WI 53511, U.S.A. caldwellinc.com 800.628.4263 815.229.5667...
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It is the responsibility of the owner/user to install, test, maintain, and operate this product in accordance with OSHA regulation, other federal, state, and local regulations. Contact RENFROE for further explanation if information is not fully understood. DON’T use any clamp that has not passed inspection by a Qualified Person within the past six months.
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Definitions Vertical Lift Lifting Force Lifting Shackle Clamp The lifting of a single plate or member in which the lifting force exerted by the rigging is directly above and in line with the lifting shackle as shown in Plate or Member the illustration on the right.
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CALDWELL/RENFROE. Rated Capacity The rated capacity of a RENFROE product is based on the product being in “new or as new” condition and represents the maximum load the product is to be subjected to when utilized in the manner described in this manual. Wear, misuse, abuse, and other factors relating to usage may reduce the rated capacity.
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Operating Temperatures Unless specified under the Application Section of the individual model, the approved operating temperature of RENFROE clamps is from 0°F (-18°C) to a maximum of 200°F (93°C). The minimum and maximum temperatures apply to both ambient and the material being handled by the clamp.
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Definitions Lock Closed An over-center, spring-loaded mechanism in which the spring exerts a force on the gripping cam when the lock handle is moved to the “Lock Closed” position. When the handle is moved to unlocked position, the force exerted by the spring is relaxed and the gripping cam may be retracted by pushing the lifting shackle into body of clamp.
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An attempt is made herein to warn against reasonable and reasonably foreseeable danger in the proper use and possible reasonable misuse of CALDWELL/ RENFROE products described in this manual. Designated Person A person selected by the employer or the employer’s representative as being competent to perform those specific duties.
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FALL ARREST Because it has been rated for Fall Protection, the BC/NMBC clamp may also be used to support one personal fall arrest system. Any structure upon which this beam clamp is installed must be able to withstand loads of at least 5,000 lbs. in any direction fall arrest forces may occur.
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Operation Model BC & NMBC Locking Screw Clamp Series 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 a clamp with appropriate capacity, flange width, and thickness. The model designation, capacity, flange width, and thickness are stenciled on each clamp.
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Operation STEP 5 Position clamp directly over load. WARNING: Never exceed 20° side loading in any direction. See illustration below. 20° 20° WARNING: When used for lifting, two clamps are recommended to insure a balanced lift. When two or more are used for lifting, always ensure that no single clamps rated capacity is exceeded.
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Inspection kits are available from the distributor or RENFROE. Kit contains: Lifting Clamp...
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Fall Arrest Requirements FALL ARREST Special Application & Limitation Requirements for Fall Arrest Use ANCHORAGE Before Fall After Fall 6 ft. (1.8m) Length of Lanyard/ Self-Retracting Lifeline 3-1/2 ft. (1.8m) Deceleration/ Free-Fall Distance 1 ft. (0.3m) Harness Stretch 6 ft. (1.8m) Total Estimated 5 ft.
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Fall Arrest Requirements FALL ARREST Every precaution must be taken to avoid swing falls (see illustration below). These can cause dangerous situations that could overcome the fall arrest system and may cause serious injury. In the event of the clamp being subjected to a fall arrest, it must be taken out of service and pass a recorded inspection by a qualified person before it can be returned to service.
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Rated Capacities Model Capacity Material Handling Rated Load Fall Arrest BC/NMBC 1-1/2 Tons 400 lbs. BC/NMBC 3 Tons 400 lbs.
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The severity of service to which the clamp is subjected in the workplace determines the frequency and type of inspection procedure required for the clamp. 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”...
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Maintenance & Inspection 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. At this time, the condition of the clamp should be noted and recorded.
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• ASME BTH-1 Service Class (if altered) RFID Some RENFROE clamps are fitted with an RFID chip and can be clearly identified by means of an ID number. This can be captured using the RUD ID EASY-CHECK® (reading device) and transferred to the EYE-D.NET system, for example. The latter application assists you in managing and documenting your components.
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STEP 4 Body: A. Inspect the welds for fractures. RENFROE recommends a dye penetrate 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.
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Parts Diagram GENERAL RENFROE products may be returned to the factory for inspection and refurbishment in accordance with an established fee schedule. Use only RENFROE replacement parts to insure maximum efficiency and safety factor originally built into the product. Refer to CALDWELL Customer Service for instructions on ordering replacement parts.
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Factory-built replacement parts offer you the best outcome when a replacement of a wear part is needed. Refurbish and recertify clamps at the RENFROE Service Center. To begin the quote process or learn more about the program, call our customer service department.
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HAS PRODUCED THE MOST RELIABLE, DURABLE CLAMPS IN THE INDUSTRY In an independent test against two other manufacturers with comparable clamps, J.C. RENFROE proved to be the most durable in horizontal and vertical cycle/fatigue testing. • The test was conducted •...
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When you need it, you need it right now. Your job is hard enough without having to chase down what should be an easy-to-find Caldwell spreader beam, Renfroe plate clamp, or RUD lifting point. With Caldwell backing you up, it really is easy.
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200 State Street, Beloit WI 53511 800.628.4263 815.229.5667 815.229.5686 (Fax) caldwellinc.com Ask us about in-stock RENFROE clamps! Large selection, ready to ship. OM-211-BC-NMBC • 050924-500...
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