7–10. PRIMARY HYDRAULIC SYSTEM – MAINTENANCE OPERATIONAL CHECK (cont)

TM 1-1520-238-T-5 7–63 7–10. PRIMARY HYDRAULIC SYSTEM – MAINTENANCE OPERATIONAL CHECK (cont) 7–10 Task Result s. Slowly push pilot collective stick to full down position to extend piston. t. Have assistant measure and record cylinder stroke. Use inside calipers. Measurement B is from bottom of jam nut to top surface of servocylinder housing (cylinder retracted). u. Subtract measurement A from B. Cylinder travel is 3.500 to 3.560 inches. If cylinder does not travel full stroke, go to step af. v. Slowly push pilot cyclic stick to full left position to retract lateral servocylinder piston. w. Have assistant measure and record cylinder stroke. Use inside calipers. Measurement A is from bottom of jam nut to top surface of servocylinder housing (cylinder retracted). x. Slowly pull pilot cyclic stick to full right position to extend piston. y. Have assistant measure and record cylinder stroke with inside calipers. Measurement B is from bottom of the jam nut to top surface of the servocylinder housing (cylinder extended). z. Subtract measurement A from B. Cylinder travel is 3.500 to 3.560 inches. If cylinder does not travel full stroke, go to step af. aa. Slowly push pilot right directional pedal to full right position to retract directional servocylinder piston. ab. Have assistant measure and record cylinder stroke with inside calipers. Measurement A is from bottom of the jam nut to top surface of the servocylinder housing (cylinder retracted). ac. Slowly push pilot left directional pedal to full left position to extend piston. ad. Have assistant measure and record cylinder stroke with inside calipers. Measurement B is from bottom of the jam nut to top surface of the servocylinder housing (cylinder extended).