TM  10-3930-638-24&P 4-2.   ENGINE   MAINTENANCE   (cont) i. Oil Pump (cont). STEP LOCATION ITEM ACTION REMARKS KEY 1. Oil pump screen 2. Cap screws 3. Lock washers 4. Screw 5. Lock washer 6. Cover assembly 7. Gasket 8.  O-ring 9. Cotter pin 10.  Spring  retainer 11. Relief valve spring 12. Relief valve 13. Oil pump body DISASSEMBLY 4 Oil  pump screen (1) 5 Oil  pump body  (13) Oil pump screen (1) a. Three cap screws (2) and lock washers (3) b. Screw (4) and lock washer (5) c.  Cover  assembly  (6) d. Gasket (7) e. O-ring (8) f. Cotter pin (9) g. Spring retainer (10) h. Relief valve spring  (11) i. Relief valve (12) Remove Unscrew from oil pump body Remove Remove Remove Remove  and discard Remove  and discard Remove Remove Remove Remove 4-70