DISASSEMBLY - TM-55-1925-292-14-P0300

TM 55-1925-292-14&P

0037 00

11. Repeat step 10 until the impeller (figure 1, item 13) is loosened.

12. Remove the impeller wrench from the shaft (figure 1, item 11).

13. Remove the impeller (figure 1, item 13) from the shaft (figure 1, item 11).

14. Remove the impeller gasket (figure 1, item 14) from the impeller (figure 1, item 13). Discard the impeller

gasket.

15. Install the brass shaft guide tool from the Durco tool kit on the impeller end of the shaft (figure 1, item 11).

16. Remove the four gland nuts (figure 1, item 15) from the mechanical seal gland (figure 1, item 16). Slide the

mechanical seal gland away from the rear cover plate (figure 1, item 17).

NOTE

Two guide bolts are required to assist in the removal of the rear cover plate and to

prevent damage to the rear cover plate during removal. Guide bolts can be fabricated

by cutting the heads off of four inch bolts that are the same thread pitch as the rear

cover cap screws.

17. Remove the two rear cover cap screws (figure 1, item 18) from the rear cover plate (figure 1, item 17). Install

two guide bolts.

18. Remove the rear cover plate (figure 1, item 17) from the shaft (figure 1, item 11).

19. Loosen the setscrew (figure 1, item 19) on the mechanical seal (packing preformed) (figure 1, item 20).

Remove the mechanical seal and mechanical seal gland (figure 1, item 16) from the shaft (figure 1, item 11).

20. Remove the brass shaft guide tool from the shaft (figure 1, item 11).

NOTE

The bearing carrier assembly will not turn without backing off the setscrews. After

loosening the setscrews, use a spanner wrench to engage the cogs on the outside

diameter of the bearing carrier to loosen it from the bearing housing.

21. Loosen the three setscrews (figure 1, item 21) on the bearing carrier (figure 1, item 22). Using a spanner

wrench, remove the bearing carrier assembly (figure 1, item 23) from the bearing housing (figure 1, item 5).

! CAUTION

Never apply pressure to the outer race of the bearings as this exerts excess load on the

balls and causes damage to the bearing.

22. Using an arbor press, remove the inboard bearing (figure 1, item 24) from the bearing carrier assembly

(figure 1, item 23).

23. Remove the four cap screws (figure 1, item 25) from the bearing housing clamp ring (figure 1, item 26).

24. Remove the bearing housing clamp ring (figure 1, item 26) from the bearing carrier (figure 1, item 22) and the

bearing carrier assembly (figure 1, item 23).

25. Remove the bearing carrier (figure 1, item 22) from the bearing carrier assembly (figure 1, item 23).

26. Remove the two O-rings (figure 1, item 27) from the bearing carrier (figure 1, item 22). Discard the O-rings.

0037 00-4