TM 9-2350-277-20-1TRANSMISSION DOES NOT DOWNSHIFT IN 1-4 POSITION 0066 00INITIAL SETUP:Maintenance LevelUnitTools and Special ToolsGeneral Mechanic’s Tool Kit (WP 0926 00, Item 65)Pressure Gage Kit (WP 0926 00, Item 35)Personnel RequiredUnit MechanicReferencesSee your -10Equipment ConditionEngine stopped (see your -10)Carrier blocked (see your -10)Trim vane lowered (see your -10)Power plant access door open (see your -10)Driver’s power plant access panel removed(see your -10)Power plant rear access panel removed (see your -10)Transmission in SLNOTEPressure tester must read 4 psi. Any other reading indicates a fault.T1. Remove plug (1) from GOVERNOR TWO (G2) port (2).2. Install 1/16 inch pressure tester adapter in G2 port (2).3. Install pressure tester on pressure tester adapter.4. Start engine and let idle (see your -10).5. Does pressure tester read more than 4 psi?YESNOTN1. Faulty transmission. Beyondunitmaintenance repair.2. Notify supervisor.Y1. Has governor assembly been replaced?YESNOYN1. Replace governor assembly(WP 0397 00).2. Verify no faults found.0066 00-1
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