The primary hydraulic circuit operates the bale squeeze and the bale hooks. When activated, the squeeze bar pulls the bales in. A sequence valve then automatically activates the bale hooks. The secondary hydraulic circuit operates the twine arm and the knotter. The twine arm starts on the right hand side, and when it completes its rotation, a valve automatically diverts the flow to the knotter.
With the squeeze arm out and the twine arm on the right-hand side, the operator will align the left side of the Tie-Grabber with the left side of the group of bales on the ground and push the group forward to compact the group. The angle of the squeeze arm will pull the bales in as it moves forward. When the bales are compacted length wise, the operator will activate the primary hydraulic circuit. This will pull the squeeze arm in, compacting the bales sideways. The bale hooks will automatically begin to set, so the operator needs to make sure the Tie-Grabber is firmly set on the group so the hooks can set properly. With the bales properly secured, the operator can safely lift and move the group.
While traveling with the loaded Tie-Grabber, the operator will activate the secondary hydraulic circuit. The twine arm then rotates to the left side for the twine to be tied securely with the Rasspe knotter. When that is finished, the hay is ready to be deposited. When traveling to the next group the operator can return the twine arm to the right hand side.
This twine tied around the bundle of bales keeps the hay secure while traveling down the road or field and makes the stack in the barn very stable and safe. It is also possible to build a stack of bales on a pallet and move them with a forklift. Finally, some of our users will build a stack of tied bales and move them with a bale squeeze.
The Standard Grabber has the same functions of the tie-grabber but without the tying mechanism. These are convenient for unloading a bundle of hay from you wagon and into your barn.