Transfer Chain (SA-1002) & Adjustable I-Beam Clamp (SA-1039 or SA-1040) Operating Instructions

Transcription

1 Transfer Chain (SA-1002) & Adjustable I-Beam Clamp (SA-1039 or SA-1040) Operating Instructions SPIDER Page 1 of Rev A

2 Using Transfer Chain with Adjustable I-Beam Clamp Safety Notes Do not use equipment if you do not understand operating and handling procedures. Always inspect equipment before each use. Do not use equipment if you question that it is in safe working condition. Report unsafe equipment immediately to proper personnel. Follow all safety rules and regulations. Failure to do so can result in injury or death. Wear Safety Harness, tied off to independent anchor points. Properly secure and store equipment when not in use. Each connection point on the beam can add additional loads to the beam and need to be considered by a qualified person before the system is used. For the connection point of the main suspension line the connection must be rated for 4x (the hoist capacity rating). For the connection point of the transfer chain rigging hooks the load rating is 4x (the dead weight of the equipment and the live load). The connection point for the independent safety line must be rated for either 5000 lbs. or for an engineered designed/controlled system 2x (the potential impact energy). Introduction Transfer chain (SA-1002) Is intended to support the weight of any Spider Model Basket equipped with chain guards on the fairlead. It allows for walking the rigging point by transferring weight back and forth from the transfer chain to rigging point to move along a horizontal structural beam and around vertical obstacles. Typical max. distance approximately 18 inches. Makes it possible to transfer from the rigging point to transfer chain, to allow repositioning of the rigging point and reloading the main suspension wire rope. Eliminates need to lower stage to ground to move rigging point. Minimum I-beam flange width 7-1/2 Adjustable I-Beam Clamp (SA-1039 or SA-1040) are intended to be used on the bottom flange of a horizontal I-Beam or Structural T. The flange not to be narrower than 1-1/2 in. (38 mm) and not wider than 4 in. (102 mm) for the SA- 1039, or 8 in. (203 mm) for the SA The beam shall be capable of sustaining four times the maximum rated working load of the basket. I-beam clamps are adjustable to width of I-beam flange, with Rigging Bar parallel to I-beam flange slide I-beam hook inward to within 1/32 to 1/8 of I-beam flange. Lock in place by rotating Rigging Bar to perpendicular position in relation to I-beam flange. When using with Transfer chain do not rotate past 50 degree angle. Use with 5/8 anchor bolt shackle. SPIDER Page 2 of Rev A

3 Steps 1. Before beginning the process of rigging the transfer chain, Worker to be secure with independent personal fall arrest system (Harness & Connecting Device) to I-beam with a separate I-Beam Clamp or I-Beam Roller as shown in figure 1. Ensure transfer chain is secured to basket, so that it s not accidentally dropped. Separate fall arrest Connection point figure 1 2. Position Sling and Rigging Hooks onto lower I-beam flange as shown in figure 2a and 2b, pull chain downward to apply tension then install optional 5/16 pear shaped thimble eye snap hook Carabineer through chain link closest to rigging hook body with chain pulled tight. Carabineer intent is to keep hooks in place on flange when the chain is not under tension. 3. Check installation by spreading Sling and Rigging hooks and seeing if they can come off beam, if components are secured go to step 4, if not repeat step 2 above until components are secure. figure 2a Caution: If Carabineer noted in steps 2 & 3 is not being used keep an eye on the transfer chain hooks to make sure that they are snug on the beam and that the chain is tight under tension prior to disconnecting the main suspension line. With slack in the chain the hooks could become disengaged. SPIDER Page 3 of Rev A

4 figure 2b 4. Thread chain through both sides of chain guards (both fairlead legs) as shown in figure 3a and 3b. figure 3a figure 3b SPIDER Page 4 of Rev A

5 5. Next position grab hook onto chain and attach shackle on chain as shown in figure 4a and 4b. figure 4a figure 4b SPIDER Page 5 of Rev A

6 6. Perform a final check on all positioned and secured components. 7. Press the DOWN Control lever to begin descent until the work basket is fully suspended from the transfer chain and there is appropriate slack in the primary wire rope to disconnect as shown in figure 5. Be sure to use the tension holder to keep the wire rope from going slack on the drum (Maintaining tight wrap). figure 5 8. Plan your moves and keep your rigging device attached to the beams. Slide as needed vs removing whenever possible. Recheck all connections prior to loading as shown in figure 6a and 6b. figure 6a SPIDER Page 6 of Rev A

7 figure 6b 9. Press the UP Control lever to begin ascent until work cage is fully suspended from your primary connection and that there is appropriate slack on the transfer chain to disconnect as shown in figure 7a and 7b. figure 7a SPIDER Page 7 of Rev A

8 figure 7b 10. After completions of transfer, proceed to next desired work location. 11. Reverse rigging procedures to return to your original location if necessary. 12. Properly secure and store equipment when not in use. SPIDER Page 8 of Rev A