ARMY TM 9-2815-254-24
AIR FORCE TO 38G1-94-2
Install cover (17) so oil flow hole is facing as noted in disassembly on drive end and secure with four screws
(16). Tighten screws 72 in-lbs (8.1 Nm).
Apply adhesive (242) and install four plugs (15) in bottom of pump. Tighten plugs 47 ft-lbs (63 7 Nm)
Place pump in upright position.
Install adapter (19, FIGURE 3-7) in pump housing (3).
Insert camshaft (18, FIGURE 3-8) into pump housing from governor end.
Position new gasket (18, FIGURE 3-7) and governor housing (17) on pump housing and secure with one bolt
(14), retainer (15), and six screws (16). Tighten bolt (14) to 150 in-lbs (16.9 Nm) and screws (16) to 72 in-lbs
If removed, install new preformed packing (13) and plug (12) in top of governor housing (17).
Checkcamshaft end play. Using a dial indicator measure end play. End play should be 0.001 to 0.002 in. (0.03
to 0.05 mm). If end play is not within limits, remove camshaft and change thickness of shims (21, FIGURE
3-8) and recheck end play.
Check control rack (39) sliding resistance by tipping pump back and forth. Check that rack moves freely.
aa. Using measuring device (1057826280) check the stroke of control rack (39). The stroke should be 0.83 in.
(21 mm) from position where control rack is fully pushed toward governor to position where it is fully pulled
toward drive end. If stroke is not 0.83 in. (21 mm) it will be necessary to change engagement of sleeve pinions
(30) with control rack to obtain proper stroke.
ab. Attach coupling (1578424420) to camshaft and hold coupling using spanner (157916-5420). Tighten nut on
ac. Rotate camshaft (18) until tappet (23) is in TDC position.
ad. Remove tappet holders (FIGURE D-1, Appendix D) and continue to rotate camshaft until all the tappet holders
are removed. Confirm that camshaft rotates freely by manually rotating camshaft slowly.