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 TM 55-1905-242-14
0208 00
ASSEMBLY--CONTROL SECTION (continued)
6.
Lubricate the control spool (15) with clean hydraulic fluid and slide it into the control sleeve (16) using a twisting motion.
The control spool should slide in and rotate easily.
7.
Align the spring slots of the control spool (15) and control sleeve (16) and install the centering spring set (17) using the
spring installation tool.
8.
Install the centering pin (18) through the control spool (15) and control sleeve (16) assembly.
9.
Install the control spool (15) and control sleeve (16) assembly in the housing (14) so that the splined end of the control
spool enters the housing first. Check that the assembly rotates freely in the housing.
10. Install new preformed packing (11 and 12) and bushing (13) in the housing (14).
11. Install the oil seal (10) in the mounting plate (9) and install the mounting plate on the housing (14). Secure the
mounting plate with the capscrews (8).
! CAUTION
Alignment of the cross slot in the drive with valleys between the teeth of the meter gear
star determines the proper valve timing of the unit. There are 12 teeth on the spline and
six pump teeth on the star. Alignment is exactly right in six positions and exactly wrong
in six positions. If the parts slip out of position during this part of the assembly, repeat
until you are certain that correct alignment is obtained.
12. Place the plate (29) over the housing (14) so that both holes in the plate align with the tapped holes in the housing.
Place the meter gear (27) on the assembly as the bolt holes align.
13. Place the splined end of the drive shaft (30) within the star gear (28) so that the slot at the control end of the drive shaft
(30) is in alignment with the valleys between the meter gear (27) teeth. Push the splined end of the drive shaft so that
the spline extends about one half its length beyond the meter gear star.
14. Install the drive shaft (30) and star gear (28) assembly into the housing (14) so that the star gear fits into the meter
gear (27).
15. Rotate the star gear (28) slightly to bring the cross slot of the drive shaft (30) into engagement with the centering
pin (18).
16. Install the shaft spacer (26) in the slot of the star gear (28) so that it is flush with the star gear surface. If the spacer does
not drop flush with the star gear surface, the drive shaft (30) has not been properly engaged with the centering pin (18).
17. Install the end cap (25) and secure it with the capscrews (24).
ASSEMBLY--SHAFT AND FLANGE ASSEMBLY
1.
Install the retaining ring (4), bearing (3), and retaining rings (1 and 2) onto the shaft (5).
2.
Install the key (7) on the shaft (5).
3.
Install the shaft (5) into the tube and flange unit (6).
4.
Check that the shaft (5) turns easily in the flange unit (6).
5.
Dispose of used cleaning solvent and contaminated materials in accordance with local regulations.
END OF WORK PACKAGE
0208 00-4
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