JBL VTX Series Rigging Manual page 40

Once the outriggers are under the VT, remove the two quick release pins labeled FRONT and REAR VT Connection Points and attach
the outriggers. The two QRPs in the storage positions should remain there; they are never used in this application .
Once all the parts are together, the screw jacks are used to lift the stack off the ground. The screw jacks are used only to ensure that
the array is not on wheels, not to aim it. Use the handles at the very top of the screw jacks to lift the array at all four corners. Continue
rotating until the wheels of the VT are off the ground.
Once the stack is stable and off the wheels, additional subwoofers or other products can be attached to the B28s using supported base
plates. To disassemble the array and remove the outriggers, follow the same steps in reverse order.
VTX B28 | Rigging Manual
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