Hardi Delta Force Boom Operator's Manual

Contents

6 - Maintenance37Adjustment of Boom LockDescription of Boom Lock MechanismTo prevent accidental folding of the spray boom while spraying, theboom joints interlock automatically when fully unfolded. The conicalbolt (A) will guide the boom sections into the interlocking position.A specially designed steel plate (B) will be lifted up, as the conical bolt(A) passes through the plate. The plate (B) will fall down behind the bolthead, thus securing the unfolded position.When folding, a hydraulic cylinder (C) will temporarily pull up the steelplate (B) to allow the boom sections to separate.÷ NOTE! On the picture, the cylinder (C) is detached from the steelplate (B). It must be attached during operation of the boom.Horizontal Alignment of the BoomThe bolt (A) can be adjusted sideways as needed.1. Loosen the lock nut (D). Wrench = 41 mm.2. Turn lock bolt (A), until the boom sections align. Wrench = 46 mm. ATTENTION! The lock bolt is eccentric. Always turn it 1 fullrevolution at a time; this will move the lock bolt 1/8” (3 mm) backor forth. Ensure that the lock bolt aligns with the center of thehole in the lock mechanism when the adjustment is completed.3. Retighten the lock nut (D). Torque = 185 Ft/lb (250 Nm).Adjustment completed.Vertical Alignment of Breakaway SectionAlign the breakaway with the outer section of the boom.Steps for adjustment:1. Loosen nut (A). Wrench = 24 mm.2. Rotate turnbuckle (B). Wrench = 17 mm.Turn clockwise: The breakaway is raised.Turn counterclockwise: The breakaway is lowered.3. When the breakaway is aligned, tighten nut (A)Adjustment is completed.