TM   5-2815-241-34&P LUBRICATING OIL PUMP - CONTINUED ACTION LOCATION ITEM REMARKS DISASSEMBLY  -  CONTINUED Pressure  regulator  spring  is  under  tension.  Maintain  pressure  on  retaining  yoke  to prevent injury. 7. Oil  pump  body  (1) Lock  plate  (2), a. Using  3/8-inch  flat-tip  screwdriver, screw (3), and re- bend back lock plate tabs. taining  yoke  (4) b. Using   9/16-inch   box-end   wrench,   loos- en and take retaining yoke off slowly. 8. Pressure  regulator cap  (5),  spring  (6), plunger  (7)  and pipe  plug  (8) a. Pull out cap, spring and plunger. b. Using   1/2-inch   hex-head   wrench,   un- screw and take out plug. CLEANING NOTE For  general  cleaning  procedures,  see  General  Maintenance  Instructions,  page  2-3. 2-266