Hardi Delta Force Boom Operator's Manual

Contents

11BoomBoom configurationsThe DELTA FORCE boom is trapeze suspended and fully hydraulically operated with all functions controlled via the DirectHydraulic System (D.H.).The DELTA FORCE boom is suspended from a trapeze with nitrogen dampers and is available in 88’, 90’, 100’, 120’ and132’(26.8, 27.4, 30.5, 36.6, 40.2 m) working widths. The 88’ - 100’ booms have bi-fold wings, while the 120’ - 132’ booms have tri-fold wings.Boom features:• Outer most sections incorporate spring-loaded breakaway.• Individual boom tilt control.• Partial folding of outer sections. This enables alternative boom widths.Full working width Outer sections folded 1st & 2nd outer sections folded88’ (26.8 m) 50’ (17.7 m) -90’ (27.4 m) 50’ (17.7 m) -100’ (30.5 m) 52’ (17.7 m) -120’ (36.6 m) 90’ (28 m) 52’ (17.7 m)132’ (40.2 m) 90’ (28 m) 52’ (17.7 m)For bi-fold booms, the terminology is as follows:A. Breakaway sectionC. Outer sectionE. Inner sectionF. Center sectionFor tri-fold booms, the terminology is as follows:A. Breakaway sectionB. Second outer sectionC. First outer sectionE. Inner sectionF. Center section÷ Note: When controlling the boom, the folding sections are:X. Second outer section (tri-fold booms only)Y. First outer sectionZ. Inner section3 - Description