TM 9-2910-226-34 3-7. Removal of Overflow Valve Assembly. a. Coda A, B, C, D, E, F and late G pumps. Refer to figure 3-4. Disconnect tubing (A) from tee fitting (B). Remove overflow valve (C). Remove hex nut (D) and lockwasher (E). Figure 3-4. Removing overflow valve assembly (all pumps except early code G). b. Early code G pumps. Refer to figure 3-5. Remove overflow valve (D) and woodruff key (A), hex nut (B) and lockwasher (C). Figure 3-5. Removing overflow valve assembly (early code G pumps). 3-2