TM 10-3930-659-34 4-24.  FUEL INJECTION PUMP REPLACEMENT (Con’t). CAUTION Use  care  when  tightening  center  screw  of  fuel  injection  pump  shaft  removal  tool.    If  too  much force is used, engine front cover may be damaged. 6. Install fuel injection pump shaft removal tool (28) on engine front cover (17). 7. Using fuel injection pump pipe driver (30), remove drive gear (31) from drive shaft (27). 8. Remove fuel injection pump pipe driver (30), drive shaft (27), and woodruff key (29) from engine front cover (17). 9. Remove fuel injection pump shaft removal tool (28) from engine front cover (17). 4-98