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 TM 55-1905-242-14
0195 00
INSPECTION (continued)
4.
Inspect the piston (43) for scratches or scoring. Replace the piston as necessary.
5.
Examine the drive shaft (9) to be sure that it is free of burrs or other damage. Check to be sure that the keyway is not
broken or rounded over. Replace the shaft as necessary.
6.
Inspect the needle and roller bearings (41, 46, and 48) for wear, scoring, pitting, or grooving. Replace the bearings as
necessary.
7.
Examine the pump housing (12) for cracks or other damage. Check the threads for damage. Replace the pump housing
as necessary.
8.
Inspect the intermediate drive (50) for cracks and wear. Replace the intermediate drive as necessary.
9.
Inspect the flange assembly (51) for cracks, wear, damaged thread, or other damage. Replace the flange assembly as
necessary.
10. Inspect the pipe plug (2) and setscrew (3) for thread damage. Replace the pipe plug and setscrew as necessary.
ASSEMBLY
1.
Lubricate the new oil seal (52) with clean hydraulic fluid and install it into the flange assembly (51).
2.
Install the intermediate drive (50) in the flange assembly (51).
3.
Press the carrier needle bearing (48) into the pump housing (12) if it has been removed.
4.
Install the piston retaining ring (44) on the piston (43). Put a light coat of grease on the piston and slide the piston with
the piston retaining ring into the sleeve (49). The bleed hole in piston must be facing the inlet.
5.
Install the needle bearing (41) and the washer (42) on the drive shaft (9) and then install the drive shaft into the pump
housing (12). Ensure that the drive shaft enters the carrier needle bearing (48) freely.
6.
Put a light coat of grease on the outside diameter of the roller bearing (46). Press the roller bearing into the bore of the
mounting flange assembly (39) until it is flush with the surface.
7.
Lubricate the new oil seal (45) with clean hydraulic fluid and press it into the bore of the mounting flange assembly (39)
to a depth of 1/4 inch (6 mm) below the surface of the flange. Ensure that the garter spring in the oil seal is facing in the
direction of the roller bearing (46).
8.
Install the washer (40) on the drive shaft (9). Using the recharging pump shaft seal installer tool, install the mounting
flange assembly (39) and O-ring (47) over the drive shaft.
9.
Secure the mounting flange assembly (39) with two bolts (37) and lockwashers (38) before removing the shaft seal
installation tool.
10. Install the check ball (14), valve spring (13), and hex plug (10) with a new O-ring (11).
11. Install the inlet valve spring (25), inlet valve (24), and adapter fitting (21) with new O-ring (23) and backup ring (22).
12. Install the valve seat (20) if removed. Install the steel ball (19), valve seat (18), spring (17) and adjusting screw (16). Install
the unloading valve cap (15) loosely until final pressure adjustment is obtained.
13. Install the backup ring (29), O-ring (30) and backup ring (31) on the valve plunger (28). Install the valve plunger assembly
into the pump housing (12). Install the O-ring (27) on the hex plug (26) and screw the hex plug into the pump
housing.
0195 00-4
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