TM 9-2350-247-20-1TRANSMISSION DOES NOT DOWNSHIFT IN 1-4 POSITION (M548A3) 0078 00INITIAL SETUP:Maintenance LevelUnitTools and Special ToolsGeneral Mechanic’s Tool Kit (WP 0541 00, Item 57)Pressure Gauge Kit (WP 0541 00, Item 34)Personnel RequiredUnit MechanicReferencesSee your -10Equipment ConditionEngine stopped (see your -10)Carrier blocked (see your -10)Transmission in SL (see your -10)Power plant rear access panel removed (see your -10)Center seat raised (see your -10)NOTEPressure gauge must read 4 psi (28 kPa). Any other reading indicates a fault.T1. Remove plug (1) from GOVERNOR TWO (G2) port (2).2. Install 1/16 inch (1.6 cm) pressure gauge adapter in G2 port (2).3. Install pressure gauge on pressure gauge adapter.4. Start engine and let idle (see your -10).5. Does pressure gauge read more than 4 psi (28 kPa)?YESNOTN1. Faulty transmission beyond unitmaintenance repair.2. Notify your supervisor.Y1. Check GOVERNOR TWO (G2).2. Has GOVERNOR TWO (G2) been replaced?YESNOYN1. Replace GOVERNOR TWO (G2)assembly (WP 0317 00).2. Verify no faults found.0078 00-1
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