Crossover Placement
Placing Team-Tough’s all new ½” Crossover bolt is easy!
The Crossover’s patent pending Crossover System, makes placing this anchor bolt quick and worry free!
Required tools:
- Drill and 1/2" drill bit
- Hole cleaning brush
- Compressed air or high pressure air pump
- Proper Bonding agent, (glue) with applicator and mixing nozzles
- Hammer, (SS or hard plastic)
- Gloves and rag
1. To start, you will need to drill your ½” hole approx. 1/4" deeper than the bolt shaft length, e.g. - for 4" bolt, drill hole at least 4-1/4" deep.
2. Thoroughly clean the hole using a round, 1/2" diameter bottle brush, or equivilent.
3. Use high pressure air to blow the dust and debree out of the hole, repeat steps 2 & 3 until no dust or debree remains in the hole.
4. Dry test the placement by inserting the Crossover Bolt into the hole to ensure that it can be inserted to full depth. If it sticks as you insert it, try twisting back & forth as you push it into the hole, (you can also use a hammer to tap the eye side side to assist in twisting the bolt in). If the fit is too tight, ream the hole with your drill bit and repeat steps 2 & 3 before trying step #4 again. Once you are able to properly and fully insert the bolt into the hole, proceed to step #5.
5. Fill your properly prepared hole with your bonding agent, (glue) to approxmately an 1/2" of the outter edge of the hole, or 85% - 90% full.
6. Insert the Crossover Bolt using a twisting back and forth motion or full rotations if possiblle, rotating one direction, then in the opposite direction, while applying pressure to push the bolt into the hole.
Note: If the bolt sticks and you are within an inch of fully inserted, use your hammer, (Stainless-steel, hard plastic mallet or dead-blow hammers only), to drive it the rest of the way. If not within an inch of being fully inserted, you can tap lightly on the bolt to drive it the rest of the way. Use only lite “tapping” blows as if hit too hard you may initiate the Crossover’s wedge system. This will make it extremely difficult to get the bolt the rest of the way into the hole.
7. (If choosing to place the Crossover Bolt with a hammer, placing the bolt in it's "set" position, proceed to step #8.)
Clean any excess bonding agent from around the placement. Strictly, follow the bonding agent, (glue) manufacturers recemmeded curing times before loading the placement.
8. To place the Crossover bolt in it's "set" position, complete steps 1-6. Use your Stainless-steel hammer, a hard plastic mallet or a plastic dead-blow hammer to hit the bolt on the top, outside edge of the eye of the bolt, see image below. We recommend at least a 16oz. hammer. If the bolt bounces hold the bottom of the eye, (be careful not to hit your fingers with the hammer), you can use a carabiner in the eye of the bolt to assist. Start with a solid hit with the hammer, 1 or 2 good hits should start the bolts wedging action. Continue to strike the bolt with your hammer until it fully sets. Once fully set, you should not be able to twist the eye of the bolt in either direction.
If it does not set after 3-4 solid hits with your hammer, give it a couple real solid strikes, you won't break it. Careful attention should be paid to ensure that you do not over drive the bolt while hammering, as the eye can become too small to fit a carabiner.
Note: In some instances the bolt's wedge system will not set, for instance if the rock is too soft or too hard. In these rare occassions, you can bypass the "setting", (hammering) step and simply place the bolt as you would any glue in.
When the bolt is fully set, the size of the eye of the bolt will decrease, see below.
Above: top – Crossover Bolt in the “neutral" position.
Note: The size of the eye in the is larger than the bottom Crossover bolt which is in the fully “set” and “activated” position.
Above bottom - Crossover Bolt in "Set" position.
Note: There is a space created between the inside ends of "legs" of the bolt when placed in the "set" position. This space fills with bonding agent, which when fully cured creates a wedged and glued anchor placement.
Once you are satified that the bolt is in the desired "set" position, follow step #7.
Below you can see the installation of a 1/2" Crossover bolt for a pull test. Here we demonstrate placing with a Stainless-steel hammer and a plastic dead-blow hammer.
*Depending on how hard the rock is that you are placing in, the size of the eye may vary when fully set.
*Rock quality can affect the ability of the Crossover wedge system to activate. Although rare, this can happen when the rock is extremely hard or too soft.