TM 55-1520-240-T5-1.1 CENTRIFUGAL DROOP STOP VISUAL CHECK (Continued)TASKRESULTTASKRESULTRotor blades can seriously injurepersonnel. Make sure area aroundhelicopter is clear of personnelbefore turning blades.NOTEBlade for centrifugal droop stop to bechecked must be positioned overfuselage.1. Position blade (1) over fuselage (2). Con-nect tiedown line (3) to one forwardblade.2. Have helpers lift blade (1) until fixed droopstop (4) on pitch shaft (5) is clear ofinterposer block (6). Support blade.Balancing arms must move freelywhen blade is raised. Fuselagecan be damaged if there is in-terference with balancing armoperation.3. Move balancing arm (7) outward as far asThere shall be no binding felt when balance armit will go.(7) is moved. Spring (8) shall be clear of otherparts. There shall be no interference with springoperation. There shall be no interference withinterposer block (6). If there is interference orbinding, refer to TM 55-1520-240-23.Do not lower rotary wing bladewithout warning personnel work-ing on droop stops. Personnel canbe injured if blade is lowered sud-denly.5-1.14. Let balancing arm (7) slowly return tohub (9). Have helpers lower blade (1)slowly until fixed droop stop (4) rests againstinterposer block (6).5. Repeat steps 1 through 7 on remaining twoaft rotor blades.FOLLOW-ON MAINTENANCE:TM 55-1520-240-23:Remove tiedown Iine on forward blade.Close aft pylon work platform.END OF TASK5-3
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