Campbell GXL Manual
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Campbell GXL Manual

Lifting clamps
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  • Page 2: Table Of Contents

    THIS PUBLICATION SUPERSEDES ALL PREVIOUSLY PUBLISHED AND/OR DISTRIBUTED INFORMATION BY MANUFACTURER AND/OR ITS DISTRIBUTORS WITH RESPECT TO APPLICABLE CAMPBELL (PREVIOUSLY MERRILL) LIFTING CLAMPS AND SUBJECT MATTER DESCRIBED OR CONTAINED HEREIN.
  • Page 3 Parts are drop forged and heat treated from prime quality steel for long life and great strength relative to their weight. All Campbell lifting clamps are individually inspected and proof tested to two times their working load limit. Replacement parts are widely available and easy to install.

  • Page 4: Applications

    ® Lifting, turning over and transfer of steel plates Model GX (No 180° Turns for GX Sharp Leg) ........10 Model GXL ................... 14 Model SAC ................... 19 Vertical lifting and transfer of steel plates Model E ....................23 Lifting, turning and mounting of wide flange beams and shape steel Model GX Structural ................

  • Page 5: Definitions

    400 Brinell (43 Rockwell C). For other appli- cations contact your Campbell ® distributor for lifting recommendations. Figure 3...
  • Page 6 CAM ENGAGING LEVER (Locking Lever): A lever or chain activated spring that holds the cam away from or in contact with the plate. This makes clamp operation easier. The Campbell “GXL” and “E” clamps have this feature. These clamps will not lift a plate when in the “lock open” position.

  • Page 7: Safe Use Of Campbell Lifting Clamps

    3. DO NOT use a clamp on a member whose thickness is less or more than the grip range shown on the clamp. Every Campbell clamp has its lifting capacity and grip range forged or stamped into the body (Fig. 7).
  • Page 8 6. DO place the pad side (short leg) of the clamp under the plate when lifting from horizontal to vertical position with clamps other than GX or GXL models (Fig. 9). 7. DO NOT use a clamp that needs repair. Inspect the clamp prior to each lift.
  • Page 9 19. DO NOT bump the load while lifting or moving. Bumping the load may cause clamps to release (Fig. 13). 20. DO NOT tamper with the cam engaging mechanism of a clamp while making a lift. Always lift and move a load with the clamp in the lever-closed (“lock-closed”) position.

  • Page 10: Gx Structural

    Model GX VERTICAL LIFT VERTICAL TURN/LIFT HORIZONTAL LIFT SPRING-LOADED CAM APPLICATION Figure 15 The standard GX clamp (Fig. 15) is a versatile clamp used mostly for steel warehousing and benchwork. The GX clamp can be used for vertical, vertical/turn or horizontal lifts. The GX clamp is recommended for turning a single sheet or fabricated structure.
  • Page 11 OPERATION Step 1 Before using any Campbell clamp, read the Applications section at the beginning of this manual to be sure the lift is appropriate for the size and style of clamp. Know the type of material to be moved before making a lift. Some exotic steels are too hard to allow the teeth of the cam to sink in.
  • Page 12 Step 4 Determine if more than one sling is required to balance the load (Fig. 19). When the size or shape of a plate or fabricated section is too large for one clamp to properly balance the load, the use of a multiple sling or spreader bar is required. A.
  • Page 13 If the cam is difficult to retract, a slight tap on the heel of the shackle or the clamp’s body should release it. Step 9 Campbell recommends inspection of each lifting clamp before and after ®...

  • Page 14: Gxl

    APPLICATION Figure 21 The GXL clamp (Fig. 21) is a versatile clamp most commonly used for steel warehousing and benchwork. The GXL clamp can be used for vertical, vertical/turn or horizontal lifts. The GXL clamp is recommended for the turning of a single sheet or fabricated structure.
  • Page 15 WARNING!: Do not lift a plate or member with a hardness greater than 400 Brinell (43 Rockwell C) Step 2 Select a clamp with the appropriate capacity and grip range. The model designation, capacity and grip range are indicated on the face of the clamp (Fig. 23). WARNING!: Never lift a weight greater than the Working Load Limit shown on the clamp.
  • Page 16 Step 4 Determine if more than one sling is required to balance the load (Fig. 25). When the size or shape of a plate or fabricated section is too large for one clamp to properly balance the load, the use of a multiple sling or spreader bar is required. A.
  • Page 17 Step 6 Engaging the clamp: VERTICAL LIFT VERTICAL TURN/LIFT A. Lower the clamp onto the plate with the lever in the “lever open” position until clamp rests on plate (Fig. 27). Occasionally, a cam may jam against a pad. To release, either tap the heel of the shackle, or grasp clamp by the shackle and tap bottom of clamp sharply against floor or other solid surface.
  • Page 18 Step 8 After the plate is fully supported and at rest, the GXL clamp can be removed by retracting the cam away from the plate. To do so, open the lever to the “open” position or, press down on the lifting shackle while at the same time lifting the clamp from the plate.

  • Page 19: Sac

    This clamp has a minimum number of moving parts. OPERATION Step 1 Before using any Campbell clamp, refer to the Applications section at the beginning of ® this manual to be sure the lift to be made is appropriate for the size and style of clamp.
  • Page 20 Step 3 Inspect the clamp before each lift (Fig. 31). A. Inspect the cam and pad for wear and defects. Gripping surfaces must be free of foreign matter. If either the cam or pad are worn or defective, replace the cam and pad at the same time. B.
  • Page 21 Step 5 Position the clamp(s) to balance the load. Position the clamp(s) so the lifting force of the crane is 20° max Angle directly in line with each clamp’s lifting shackle, of lift and the load is evenly distributed (Fig. 33). should not be less than...
  • Page 22 After the plate is fully supported and at rest, the SAC clamp can be removed by loosening the screw. Step 9 Campbell recommends inspection of each lifting clamp before and after each lift. Refer ® to the Maintenance and Inspection section of this manual for detailed instructions.

  • Page 23: Model E

    OPERATION Step 1 Before using any Campbell clamp, refer to the Application section at the beginning ® of this manual to be sure the lift to be made is appropriate for the size and style of clamp.
  • Page 24 WARNING!: Never lift a weight greater than the Working Load Limit shown on the clamp. Step 3 Inspect the clamp before each lift (Fig. 36). A. Inspect the cam and pad for wear and defects. Gripping surfaces must be free of foreign matter. If either the cam or pad are worn or defective, replace the cam and pad at the same time.
  • Page 25 C. The Working Load Limit of any multiple slings assembly or spreader bar assembly must not be more than the combined Working Load Limit of two clamps, regardless of the number of clamps in the assembly. Step 5 Position the clamp(s) to balance the load. Position 10°...
  • Page 26 The cam should release. If cam sticks, tap clamp body. WARNING!: Never tap the tension arm or use a cheater pipe to force arm open. Step 9 Campbell recommends inspection of each lifting clamp before and after each lift. ®...

  • Page 27: Model H

    OPERATION Step 1 Before using any Campbell clamp, refer to the Application section at the beginning ® of this manual to be sure the lift to be made is appropriate for the size and style of clamp.
  • Page 28 Step 3 Inspect the clamp before each lift (Fig. 41). A. Inspect the cam and pad for wear and defects. Gripping surfaces must be free of foreign matter. B. Inspect the shackle and visible linkage for elongation, distortion, wear or damage. C.
  • Page 29 Step 5 Position the clamp(s) to balance the load. Position the clamp(s) so the lifting force of the crane is directly in line with each clamp’s lifting shackle, and the load is evenly distributed (Fig. 43). WARNING!: Never attach a clamp directly to the crane hook.
  • Page 30 To do so, press down on the cam while at the same time slide the clamp away from the plate. Step 9 Campbell recommends inspection of each lifting clamp before and after each lift. ® Refer to the Maintenance and Inspection section of this manual for detailed instructions.

  • Page 31: Gxrpc

    OPERATION Step 1 Before using any Campbell clamp, refer to the Applications section at the beginning of ® this manual to be sure the lift to be made is appropriate for the size and style of clamp.
  • Page 32 Step 3 Inspect the clamp before each lift (Fig. 46). A. Inspect the cam and pad for wear and defects. Gripping surfaces must be free of foreign matter. If either the cam or pad are worn or defective, replace the cam and pad at the same time. B.
  • Page 33 Step 5 Position the clamp(s) to balance the load. Position the clamp(s) so the lifting force of the crane is directly in line with each clamp’s lifting shackle, and the load is evenly distributed (Fig. 48). WARNING!: Never attach a 10°...
  • Page 34 Step 9 Campbell recommends inspection of each lifting clamp before and after each lift. ® Refer to the Maintenance and Inspection section of this manual for detailed instructions.

  • Page 35: Duplex Hand Grip

    Duplex Hand Grip This clamp is designed to carry or pull any metal, plastic or structural shapes that will fit into its jaws. It grips and releases automatically and is small and lightweight. The Duplex Hand Grip is also furnished with an eye nut rather than a handle for conveyor applications (Fig.

  • Page 36: Drum Handling Equipment

    Drum Handling Equipment Single drum lifter, No. 52 The Campbell drum lifter (Fig. 54) is a completely ® drop-forged unit for lifting steel drums. It is designed to accommodate a great variety of drums with or without heads removed. It snaps onto the drum and is held there by its spring-loaded cam, even if there is no load.
  • Page 37 (WLL) shown on each clamp. Working Load Limit (WLL) of each clamp is 1/2 ton (Fig. 58). If you need to lift a drum that weighs more than 1/2 ton, but less than 1 ton, use Campbell Twin Drum Lifter (No. 252), ®...

  • Page 38: Double Drum Lifter, No. 252

    Twin Drum Lifter, No. 252 Figure 63 This valuable tool (Fig. 63) handles both regular and resealable steel drums without damaging the bead. A recess on the short leg of the clamps accommodates the bead of resealable drums. The clamps are simply turned so that the short legs are on the outside of the drum for this application.

  • Page 39: Fork Truck Drum Lifter, No. 260

    Fork Truck Drum Lifter, No. 260 This unique device transforms any forklift truck into an efficient drum handler (Fig. 64). It slips easily onto the forks and grips tightly with knife edged levers. When the load is removed, it can be lifted off easily.

  • Page 40: Maintenance And Inspection

    MAINTENANCE & INSPECTION Campbell clamps are built to stand up to rough treatment. However, it is not possible ® to design a clamp to withstand unanticipated outside forces which would interfere with the clamp maintaining its grip on the plate or member. Therefore, it is very important to always perform a visual inspection of each clamp before and after each lift.
  • Page 41 Inspection of Pads NORMAL NORMAL WORN Campbell clamps utilize a fixed pad or swivel pad. Inspect the pad for worn or chipped serration (Fig. 70). Serration must be free of foreign matter. WORN WARNING!: Pads with worn or fractured serrations must be replaced.
  • Page 42 Inspection of Clamp’s Body A. Inspect the throat width of the clamp (Fig. 72). The width at the base should be the same as at the top. B. Inspect the weld and external surfaces for fractures, wear or distortion. C. Inspect the body rivets for worn heads. NORMAL DAMAGED WARNING!: Clamps with distorted throat openings,...
  • Page 43 Chains supplied with clamps should also be inspected carefully (Fig. 74). To do this, use a Campbell wear gauge. Inspect chains link by link, checking for distorted, stretched or cracked links, nicks or gouges, pitted links and excessive wear of bearing surfaces and barrels.
  • Page 44 14600 York Road, Suite A Sparks, Maryland 21152 www.apextoolgroup.com ATG-1163 12/12 / ITEM NO. T550860 ©2012 Apex Tool Group, LLC CAMPBELL® is a registered trademark of Apex Brands, Inc., a Division of Apex Tool Group, LLC. Specifications subject to change without notice.

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