Bulk bags (FIBC) with corner loops have both pieces of the lift loop attached or sewn into the corner of the bag where two side panels meet. Typically corner loops are used on U-Panel or Four Panel bags.
Verify that the machinery has stopped completely. As you carefully insert the tines or hooks into the bag, follow any additional directions provided by the manufacturer or supplier. Lift the sack smoothly and steadily. After the bag is on the lift, tilt it to the correct angle and maintain it as low as possible in relation to the mast.