TM 55-1520-240-T5-2.3 ROTOR BLADE TRACKING AND BALANCING SYSTEM OPERATIONAL CHECK5-2.3INITIAL SETUPEquipment Condition:Applicable Configurations:TM 55-1520-240-23:Tracking with StrobexBattery ConnectedTools:NoneMaterials:NonePersonnel Required:Rotary Wing Aviator (2)Aircraft ElectricianReferences:TM 55-1520-240-23Electrical Power OnHydraulic Power OnRotor Blade Tracking and Balancing System VisualCheck Performed (Task 5-2.2).Helicopter Prepared for In-Flight Blade BalancingTracking Targets InstalledTASKRESULT1.2.3.4.5.Check that BLADE TRACK circuit breaker (1) isclosed.Have pilot start engines and stabilize rotors at 100percent rpm. Prepare strobex (9) for Ground Track,reference TM 55-1520-240-23. Set function switch(5) to A. Press VERIFY TUNE switch (2).Press trigger (8).If Blade Track circuit breaker (1) is open, close it. Ifit opens again, go to task 5-2.4.Lights on clock angle indicator (3) shall come on at12, 4, and 8 o’clock positions. If not, go to task5-2.5.Strobex flash tube shall flash. Aim at targets. (1o’clock, Fwd Rotors, 11 o’clock, Aft Rotors.) Targetsshall be visible. If not, go to task 5-2.6.IPS meter (7) shall move up scale at both positionsand not return to zero. If the IPS meter does notmove or moves and then returns to zero, go to task5-2.7.IPS meter (7) shall move up scale at both positionsand not return to zero. If the IPS meter does notmove or moves and then returns to zero, go to task5-2.8.Prepare balancer (10) for in-flight balance, referenceTM 55-1520-240-23. Set switch (6) to FWD LAT-ERAL then AFT LATERAL.Set switch (6) to FWD VERTICAL, then AFT VER-TICAL.FOLLOW-ON MAINTENANCE:TM 55-1520-240-23:Battery DisconnectedElectrical Power OffHydraulic Power OffDisconnect Vibrex EquipmentEND OF TASK5-8Change 10
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
