TM 5-4210-233-14&P-2
6-6. FIRE PUMP - Continued
(21)
Stand coupling shaft (32) on press table with spline end up.
(22)
Press on inner bearing (79) tight against shoulder on coupling shaft (32).
(23)
Slip spacer (89) over shaft (32) and seat it against bearing (79).
(24)
Press on outer bearing (78) tight against spacer (89).
(25)
Press on oil seal sleeve (88) tight against bearing (78) inner race.
(26)
Press new oil seal (91) into the coupling shaft housing (12).
(27)
Install the coupling shaft housing (12) onto bearings (78 and 79) on the coupling shaft (32)
assembly.
(28)
Place this assembly aside for later installation.
(29)
Press bushings (59) into the mid-section shift shaft hole with top of outer bushing (59) flush with
pad on the mid-section (15) and with 1/8" (3.2 mm) space between the bushings (59). Lubricate
with silicone grease (Item 11, Appendix E), and install new O-ring (60) in the space between the
bushings (59).
(30)
Install pins (55 and 56) in shift arm (52) and in the case mid-section (15).
(31)
Slide sector gear (57) on the shift shaft (37).
NOTE
The hub end of the sector gear (57) is towards the shouldered
end of the shaft. Line up the hole in the hub of the sector gear
(57) with the hole mid-length in the shift shaft (37) and install pin
(61).
(32)
Slide spacer (58) on the shift shaft (37) up against the sector gear (57).
(33)
Position spring sleeve (54) on pin (55) in the case mid-section (15).
(34)
Install the previously assembled shift shaft (37) and sector gear (57) from the inside through the
shift shaft hole in the mid-section.
(35)
Insert spring (53) in spring sleeve (54). Position the shift arm (52) on the shift shaft (37). Slide
down until holes in the shift arm (52) and shift shaft (37) line up and at the same time compress
spring (53) in its sleeve (54) to allow pin (56) in the shift arm (52) to slide through the slot in the
sleeve (54). Install pin (51) that fastens shift arm (52) to shaft (37). Support mid-section (15) with
shift shaft (37) in place in inverted position on work bench or other supports.
(36)
Lubricate with silicone grease (Item 11, Appendix E), and install new O-ring (40A) in groove on
pivot pin (40).
6-22
