TM 55-1520-240-T7-5.4 POWER STEERING SYSTEM OPERATIONAL CHECK (Continued)7-5.4TASKRESULT15.16.17.18.19.20.21.22.23.24.25.Have helper set BRAKE STEERswitch (8) to ON. Close guard (7).Have helper set SWIVEL switch (2)to UNLOCK. Manually turn wheelslowly counterclockwise 90degrees.Set SWIVEL switch (2) toSTEER.Manually return wheel to neutral.Have helper turn STEERING CONTROLknob (5) to extreme RIGHT position.Have helper set SWIVEL switch (2) toLOCK, then STEER.Have helper turn STEERING CONTROLknob (5) to extreme RIGHT position.Have helper set SWIVEL switch (2)to UNLOCK. Manually turn wheelslowly clockwise 90 degrees. SetSWIVEL switch (2) to STEER.Manually return wheel to neutral.Have helper turn STEERING CONTROLknob (5) to extreme LEFT position.Have helper set SWIVEL switch (2) toLOCK, then STEER.Have helper turn STEERING CONTROLknob (5) to extreme LEFT position.PWR STEER caution light (9) shall come on. Thewheel shall not move. If it does, replace STEER-ING CONTROL box.PWR STEER caution Iight (9) shall stay on. If notreplace STEERING CONTROL box. Refer to TM5 5 - 1 5 2 0 - 2 4 0 - 2 3.Wheel shall not move. If it does, replace STEER-ING CONTROL box. Refer to TM 55-1520-240-23.Aft right wheel shall swivel counterclockwise. Ifnot, replace STEERING CONTROL box. Refer toT M 5 5 - 1 5 2 0 - 2 4 0 - 2 3.PWR STEER caution light (9) shall come on.Wheel shall not move. If it does, replace STEER-ING CONTROL box.PWR STEER caution light (9) shall stay on, if notreplace STEER CONTROL panel.Wheel shall not move. If it does, replace STEERCONTROL box. Refer to TM 55-1520-240-23.PWR STEER caution light (9) shall go out.Wheel shall swivel clockwise, if not, replaceSTEERING CONTROL Panel.—FOLLOW-ON MAINTENANCE:T M 5 5 - 1 5 2 0 - 2 4 0 - 2 3:Battery DisconnectedElectrical Power OffHydraulic Power OffJack at Aft Right LandingGear RemovedAft Right Landing GearAccess Panel Closed.END OF TASKChange 17-163
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