ARMY TM 9-2815-255-24
AIR FORCE TO 38G1-95-2
MARINE CORPS TM 2815-24/4
Check or relocate timing mark on governor weight retainer (31) as follows:
Place weight retainer (31) on timing line locator tool (20401).
Rotate hub of weight retainer and rotor hub in direction indicated on tool until movable pointer lines up with
131.5 degree mark.
Check to see if timing mark on rotor hub is aligned within ± one degree with fixed arrow point on tool.
If not, remove existing mark, repeat step (1) thru (3) and scribe a new mark on hub. New hubs will have
no timing mark. The timing mark will have to be added.
Place holding fixture (FIGURE D-1, Appendix D) in vise.
Place weight retainer on rotor. Ensure that assembly timing marks on rotor and weight retainer line up. Using
snap ring pliers, install new snap ring (30) in its groove in weight retainer.
While holding weight retainer carefully so rotor will not fall out, invert entire unit so it rests on weight retainer
Position two rotor retainers (23) on head and rotor with cutout portions meeting over spring pin hole in hydraulic
Position liner locating ring (22) over rotor retainers (23) and bottom it against head. Position split in ring 90
degrees from split in retainers.
Preformed packing (16) has an oval cross section and can be identified by rolling it between
Install new preformed packing (16) in groove on hydraulic head (17). Be sure to push packing all the way into its
Use care not to cock blades during Installation, as sharp edge on liner (15) can score blade ends.
Install liner (15) so slot is lined up with hole in which regulator assembly roll pin (12) enters.
Blade springs (14) must be fully compressed as they are installed.
Assemble springs (14) to blades (13) and install blades in their slots in rotor.
Assemble transfer pump components as follows:
If necessary, install new spring pin (12) in correct hole in regulator (8) for clockwise rotation. On face of
regulator 'C' is stamped for clockwise pump operation.
Using small flat screwdriver, install new piston seal (11) in groove of regulator (8). Do not roll seal over
To prevent excessive transfer pump pressure and damage to pump when nt is operated, ensure
adjusting plug (7) Is flush with end of regulator.