TM 1-1520-238-23 Change 11 Index 81 Subject Para No. Subject Para No. Gearbox Machine Plug Removal/Installation, Intermediate . . 6.127 Gearbox Machine Plug Removal/Installation, Tail Rotor . . . . . 6.146 Gearbox Main Sleeve and Runout Tube Removal/Installation, No. 1 or No. 2 Engine Load Demand Spindle . . . . . . 4.144A Gearbox Main Sleeve and Runout Tube Removal/Installation, No. 1 or No. 2 Engine Power Available Spindle . . . . 4.141A Gearbox Metallic Chip Detector Inspection, Engine Nose . . . . . . . . . . . 6.25 Gearbox Metallic Chip Detector Removal/Installation, Engine Nose . . 6.26 Gearbox Oil Filler Cap Removal/ Installation, APU TM 1-2835-213-23 . . . . . . . . . . Gearbox Oil Filter Bowl, Strainer Element, and Differential Pressure Switch (Lockwired Type) Removal/Installation, Engine Nose . . 6.18 Gearbox Oil Filter Bowl, Strainer Element, and Differential Pressure Switch (Retainer, Ringed Type) Removal/Installation, Engine Nose . . 6.19 Gearbox Oil Filter Safety Relief Valve Replacement, Engine Nose . . . . . . . . 6.20 Gearbox Oil Jet Filters Removal/Installation, Engine Nose . . 6.31 Gearbox Oil Jet Removal/Installation, Engine Nose . . . . . . . . . . . . . . . . . . . . . 6.35 Gearbox Oil Pressure Transducer Removal/Installation, Engine Nose . . 6.29 Gearbox Oil Sampling, Engine Nose . . . 1.29 Gearbox Oil Temperature Transducer Removal/Installation, Engine Nose . . 6.28 Gearbox Outer Diffuser (Two-Section) Removal/Installation, Engine Nose . . 6.32 Gearbox Output Coupling Removal/Installation, Intermediate . . 6.13 Gearbox Output Seal Assembly Removal/Installation, Engine Nose . . 6.38 Gearbox Output Seal Assembly Removal/Installation, Intermediate . . 6.125 Gearbox Output Shouldered Shaft Removal/Installation, Intermediate . . 6.122 Gearbox Preload Shim Removal/Installation (AVIM), Engine Nose . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.40 Gearbox Removal/Installation, Intermediate . . . . . . . . . . . . . . . . . . . . . 6.131 Gearbox Removal/Installation, No. 1 Engine Load Demand Spindle . . . . . . 4.143 Gearbox Removal/Installation, No. 1 Engine Power Available Spindle . . . . 4.140 Gearbox Removal/Installation, No. 2 Engine Load Demand Spindle . . . . . . 4.144 Gearbox Removal/Installation, No. 2 Engine Power Available Spindle . . . . 4.141 Gearbox Removal/Installation, Tail Rotor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.145 Gearbox Rotor Output Shaft Seal Removal/Installation (AVIM), Engine Nose . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.39 Gearbox Servicing, Engine Nose . . . . . . 1.28 Gearbox Servicing – Grease, Intermediate . . . . . . . . . . . . . . . . . . . . . 1.30 Gearbox Servicing – Grease, Tail Rotor 1.31 Gearbox Shouldered Shaft Expansion Plug Replacement (AVIM), Tail Rotor 6.134 Gearbox Shouldered Shaft Removal/Installation, Tail Rotor . . . . . 6.133 Gearbox Shouldered Shaft Stud Replacement (AVIM), Tail Rotor . . . . . 6.147 Gearbox Shroud Adhesive Seal Replacement, Nose . . . . . . . . . . . . . . . 2.124A Gearbox Sight Indicator Removal/Installation, Engine Nose . . 6.22 Gearbox Strut Disassembly/Assembly, Tail Rotor . . . . . . . . . . . . . . . . . . . . . . . . 6.144 Gearbox Temperature Sensor Removal/Installation, Tail Rotor . . . . . 6.138 Gearbox Temperature Sensor Removal/Installation, Intermediate . . 6.130 Gearboxes Installation, Engine Buildup – No. 1 and No. 2 Engine Baseplate and Spindle . . . . . . . . . . . . . . . . . . . . . . 4.37 Gearboxes Removal, Engine Teardown – No. 1 and No. 2 Engine Baseplate and Spindle . . . . . . . . . . . . . . . . . . . . . . 4.23 Gearshaft Fixture Installation, Main Rotor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.128 Gearshaft Fixture Removal, Main Rotor 1.129 Gearshaft Installation, Hoisting – Main Rotor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.88