String & Chain
This is the last section required for the GreyT Elevator assembly, so the images below show the final assembly.
If you are assembling a 1 Stage Elevator, only the steps involving the #25 Chain are required.
Step 1
For this step, all stages will have to be lifted out of the way in order to complete. Once you have access to the Bottom Tube of the Elevator Mast Assembly, bolt the Gearbox Angle Bracket to the bottom of the tube using #10-32 x 3/8"L bolts. The top face of the tube should be drilled to 3/8” so the #10-32 x 3/8”L bolts can be installed easily inside the tube.
The Gearbox Angle Bracket is not included in the GreyT Elevator Kits. It is cut from 1" x 1" x 0.090" VersaFrame Aluminum Angle.
All holes on the Gearbox Angle Bracket will need to be drilled clearance for #10-32 before moving on to the next step.
Step 2
Drill the holes marked in green on the Centered Bearing Plates to be clearance for #10-32. Once that is done, press the 1/2" ThunderHex Bearing into the plate. Install the Single Stage Gearbox and Centered Bearing Plate in the way shown in the image below.
Step 3
Slide the 22T Sprockets, 1/2" Hex Acetal Spacers, and Clamping Shaft Collars onto the shafts in the order shown in the images below.
Step 4
Install the #25H chain and tensioner. Either the Spartan #25 Chain tensioner (WCP-0051) or the #25 Chain Turnbuckle (WCP-0247) are compatible with this setup. When running the chain. Make sure it runs between the two Chain Attachment Brackets.
The chain tensioner can go in one of the two spots indicated in the image below in green circles.
After the tensioner has been added, bolt through the #25H Chain and Chain Attachment Brackets using #4-40 bolts and nuts. Two additional 1/8" roll pins may be added as well. This will help reduce the load on the #4-40 bolts.
If you are assembling a 1 Stage Elevator, the two Chain Attachment Brackets will be mounted to the Carriage and this will be your last step.
Step 5
Install the 3-1/2" L Tapped Standoff in the way shown in the image below. Mirror this step for both sides of the carriage.
A #9 hole must be drilled 0.625" from the edge before installation. This hole is what will allow the string for the elevator to attach to the shaft.
Step 6
Follow the image below for running the rope.
The beginning of the rope can be looped around the shaft on the carriage, but the other end must be ran through the drilled hole. This ensures that only one end is being wound up.
A few wraps of string are recommended before the string begins to get tight. Tension string to desired level.
The string may need to be re-tensioned after the elevator has been powered. This is due to the string stretching due to the knots fully tightening after having a load applied.
Step 7
Center the Rope Clamp Plates on the 1st Stage rope. Match drill the holes through the plates and the Elevator Mast Cross Tube. The Rope Clamp Plates should go over the rope run that is closest to the tube.
For 1st Stage, only one plate is required since the string will be bolted directly to the tube. For all extra stages past that, there will need to be a stack of two plates between the string and the tube.
Heavily chamfer the edge of the blocks that the rope passes through so as to not damage the rope. Failure to do so will cause a rip in the rope. Be aggressive with the chamfer.
If your rope begins to slip and tightening the bolts does not fix the problem, it is recommended to scuff the surfaces of the plates that come in contact with the rope. Another solution is to apply grip tape to the surface of the plates that comes in contact with the rope.
Step 8
Follow the image below for running the rope.
Both string runs will need to be split in half and will meet at the #35 Chain Turnbuckle. When tying the knot around the ends of the turnbuckle, make sure that the turnbuckle is fully loosened beforehand.
Repeat this step for both sides of the Extra Stage, and for all Extra Stages that are used.
The string may need to be re-tensioned after the elevator has been powered. This is due to the string stretching due to the knots fully tightening after having a load applied.
This step is not required if you are assembling an elevator with two or fewer stages.
Step 9
Center the Rope Clamp Plates on the Extra Stage rope. Match drill the holes through the plates and the Extra Stage Mast Cross Tube. The Rope Clamp Plates should go over the rope run that is closest to the tube.
Two blocks must be installed behind the rope and one in front of the rope. Use a minimum of four #10-32 bolts to clamp the rope to the cross tube. Before tightening the blocks, ensure that all stages of the elevator are at the bottom.
This step must be repeated for all Extra Stages that are used.
Heavily chamfer the edge of the blocks that the rope passes through so as to not damage the rope. Failure to do so will cause a rip in the rope. Be aggressive with the chamfer.
If your rope begins to slip and tightening the bolts does not fix the problem, it is recommended to scuff the surfaces of the plates that come in contact with the rope. Another solution is to apply grip tape to the surface of the plates that comes in contact with the rope.
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