TM 5-3810-307-24-1-2
Lubricating Oil System Oil Pump. (Refer to Figure K-34.)
The oil pump is normally removed for replacement.
Removal.
a.
Close the oil pump feed shutoff valve (handle perpendicular to the lines).
b.
Using a suitable container to catch any oil, loosen the hose clamp (1, Figure K-34)
securing the rubber oil line (2) to the oil inlet fitting on the oil pump (3) and disconnect
the line from the fitting.
c.
Loosen the hose clamp (4) securing the rubber oil line (5) to the oil outlet fitting on the oil
pump (3) and disconnect the line from the fitting.
d.
Loosen the hose clamp (6) securing the rubber oil line (7) to the waste oil outlet fitting on
the oil pump (3) and disconnect the line from the fitting.
e.
Remove the four oil pump mounting bolts (8) securing the oil pump (3) to the lower
cylinder.
f.
Remove the oil pump (3) from the lower cylinder.
Installation.
a.
Align the oil pump (3, Figure K-34) with the mounting holes on the lower cylinder.
Place Loctite 272 (red) on the four oil pump mounting bolts (8). Secure the oil pump (3)
b.
to the lower cylinder with the four oil pump mounting bolts (8). Tighten the bolts and
torque to 150 ftlb (203 Nm).
c.
Connect the rubber waste oil line (7) and hose clamp (6) to the waste oil outlet fitting on
the oil pump (3). Tighten the hose clamp (6).
d.
Connect the rubber oil line (5) and hose clamp (4) to the oil outlet fitting on the oil pump
(3). Tighten the hose clamp (4).
e.
Connect the rubber oil line (2) and hose clamp (1) to the oil inlet fitting on the oil pump
(3). Tighten the hose clamp (1).
K-78 Change-1