TM  10-3930-643-34 TRANSMISSION  TROUBLESHOOTING  AND  MAINTENANCE.  (cent) 6-8. Scheduling Valve and Control Valve. (Sheet 3 of 4) REMOVAL  (cont) 6. Using a 9/16” socket and socket wrench  handle,  remove three  bolts (10),  washers  (11),  scheduling  valve (12), six preformed packings (13), control  valve  (14)  and  six  preformed packings (15). Discard  six  preformed packings (13 and 15). 7. Using a 1“   open end wrench, remove items 16 thru 19 as an assembly, coupling (20) and preformed packing (21) from scheduling valve (12). Discard  preformed  packing  (21). 8. Using 9/16”  and 11/16" open end wrenches, remove cap (16), coupling (17) and adapter (18) from tee (19). CLEANING/INSPECTION 9. Clean all parts with mild detergent and wipe dry with clean cloth. Refer to paragraph 2-8. 10• Inspect all parts. Refer to para- graph 2-9. INSTALLATION 11. Using 9/16" and 11/16" open end wrenches, install adapter (18), coupling (17) and cap (16) to tee (19). 12. Using a 1"   open end wrench, install new  preformed  packing  (21),  coupling (20) and items 16 thru 19 as an assembly to scheduling valve (12). Go to sheet 4 6-56