Related Manuals for Renfroe L Series
Summary of Contents for Renfroe L Series
- Page 1 Before putting tool in service, take the manual to your supervisor. MODELS L-SERIES CLAMPS APPLICATION, OPERATION, AND MAINTENANCE MANUAL Model L Model LP Model LA Model LPA caldwellinc.com 800.628.4263 815.229.5667...
- Page 2 RENFROE™ product. Operator’s Manuals for other current RENFROE products are available upon request. The RENFROE brand has been trusted and preferred by international lifting clamp users for more than 50 years. They are manufactured by The Caldwell Group, Inc. in Rockford, IL, and sold via a worldwide network of stocking distributors who exemplify the same high-quality performance and service standards RENFROE brand stands for.
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Page 3: Table Of Contents
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. -
Page 4: Clamp Operation Do's And Don'ts
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... - Page 5 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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Page 6: Vertical Lift
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. -
Page 7: Rated Capacity
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. -
Page 8: Operating Temperatures
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. -
Page 9: Locking Screw
Definitions Lock Open Only Normally used on “Hot Lift” clamps and consists of a manually operated “Lock Stop Pin” that is inserted when gripping cam of clamp is retracted and removed when clamp is positioned on the plate. Tag line may be used to permit operator to remove pin from a greater distance from clamp. -
Page 10: Qualified Person
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. -
Page 11: Application
Application Model L/LP/LA/LPA Clamp Series The Models L, LA, LP & LPA have a lock open and lock closed feature built into their design. The LA, & LPA have an auxiliary lock. The LA and LPA clamps are recommended for turning of a single steel plate from horizontal to vertical to horizontal through a 180°... - Page 12 Application Model L, LP Lock Handle Lock Handle (Must be in this position for turning 90°) 90° Plate Model LA, LPA Lock Handle Lock Handle 180° Plate Auxiliary Lock Button Lock Handle Caldwell Quality. Guaranteed.
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Page 13: Operation
Operation Model L/LP/LA/LPA 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 appropriate capacity and plate thickness. The model designation, capacity, and plate thickness are stenciled on each clamp. - Page 14 Operation AUXILIARY LOCK The Auxiliary Lock Release Button is mounted in the Lock Handle. When Lock Handle is in “Lock Closed” position the Auxiliary Lock Release Button is flush with the top of the Lock Handle. WARNING: Do not use clamp unless auxiliary lock is fully engaged and auxiliary push button is flush with top of lock handle.
- Page 15 RENFROE clamp. Type LA/LPA: Press the push button and shift the lock assembly into the “Lock Open” position. The cam assembly remains in the housing of the RENFROE clamp. STEP 6 Position clamp on plate being lifted. WARNING: When using the Model J and JP for lifting from horizontal to vertical, the clamp must be positioned with the lock handle always on the topside of plate when plate is in a horizontal position.
- Page 16 Operation Do not allow inside of jaw opening to rest on edge of plate. Maintain 1/4" clearance. Refer to “Open” position illustration on page 14. Position the clamp so that the direction of force applied by the crane is in line with the lifting shackle, except for the LP and LPA clamps— refer to the De-Rated Capacities Chart.
- Page 17 STEP 8 Closing the RENFROE clamp: Shift the lock assembly into the “Lock Closed” position. The spring applies a force to the tooth segment and the sheet is held.
- Page 18 RENFROE clamp. Type LA/LPA: Press the push button and shift the lock assembly into the “Lock Open” position. The cam assembly remains in the housing of thee RENFROE clamp. STEP 11 Inspect clamp. Remove from service if in need of repair. WARNING: 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.
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Page 19: Maintenance & Inspection
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”... - Page 20 Maintenance & Inspection 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 21 • 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.
- Page 22 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.
- Page 23 Maintenance & Inspection STEP 6 Cam Assembly (L-2, LP-2, LA-2 and LPA-2 in parts diagrams on pages 26 and 27): A. Inspect cams for chipped or worn teeth. Teeth must be sharp and free of foreign matter. B. Inspect cam straps for distortion and fractures. C.
- Page 24 Maintenance & Inspection STEP 11 Auxiliary Lock Housing and Sleeve (LA/LPA-8 in parts diagrams on page 27): A. Inspect sleeve for wear at position where sleeve contacts shackle. Replace if worn. B. Inspect auxiliary lock housing for distortion and wear. C.
- Page 25 Refer to exploded view for proper location of component parts. WARNING: All retaining pins and fasteners must be in place. 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.
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Page 26: Parts Diagram
Parts Diagram MODEL L EXPLODED VIEW LIFTING SHACKLE L/LA 1 SPRING LPA-6 SHACKLE PIN LPA-3 LOCK ASSY L/LP-7 BODY BOLT & SPCR SLEEVES L/LP-10 CAM ASSEMBLY LPA-2 SWIVEL JAW CAM PIN LPA-4 LPA-5 MODEL LP EXPLODED VIEW LIFTING SHACKLE LP/LPA-1 SPRING LPA-6 SHACKLE PIN LPA-3... - Page 27 Parts Diagram MODEL LA EXPLODED VIEW LIFTING SHACKLE L/LA-1 SPRING LPA-6 SHACKLE PIN LPA-3 LOCK ASSY LA/LPA-7 AUX LOCK HOUSING & SPCR SLEEVE LA/LPA-8 CAM ASSEMBLY LPA-2 SWIVEL JAW CAM PIN LPA-4 LPA-5 BODY BOLT & SPCR SLEEVES LA/LPA-10 MODEL LPA EXPLODED VIEW LIFTING SHACKLE LP/LPA-1 SPRING LPA-6...
- Page 28 800.628.4263 815.229.5667 contact@caldwellinc.com caldwellinc.com Ask us about in-stock RENFROE clamps! Large selection, ready to ship. OM-L-SERIES • 040225-2000...
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