TM 3-4310-100-20 & P
(3) Installation. Install components in
(1) Removal.
(a) Unscrew and remove the drain plug
the reverse order of removal in (1) above.
b. Oil Breather Assembly. The oil breather
from the bottom of the compressor sump.
(b) Remove the preformed packing from
assembly consists of the oil breather cap and oil breather
the drain plug.
(fig. 2-7). To replace, unscrew the defective oil breather
(2) Cleaning and Inspection.
assembly and remove it from the compressor crankcase.
(a) Clean drain plug with a clean dry
When installing a new oil breather assembly, be sure not
to cross the threads.
cloth.
(b) Inspect the preformed packing and
c. Drain Plug.
(1) Removal.
drain plug, for damage or deformation,
Replace
(a) With a clean cloth (item 9, Appendix
preformed packing and drain plug as required.
(3) Installation.
F), wipe dirt, grit, and oil from the area surrounding the
(a) Position preformed packing into
drain plug (fig. 2-7).
(b) Remove the drain plug and drain the
packing groove on the drain plug.
(b) Screw the drain plug into the bottom
oil from the oil reservoir. Remove the preformed
of the compressor sump. Tighten the drain plug to 35 +
packing.
5 inch-pounds.
(2) Cleaning and Inspection.
(a) Use stoddard solvent (item 8,
c. Oil Strainer.
Appendix F) to clean the drain plug. Wipe the drain plug
(1) Removal.
dry with a clean cloth (item 9, Appendix F).
(a) Disconnect .the end nut and remove
(b) Check for defective threads, distorted
the oil supply tube from the oil strainer.
or rounded wrenching features. Replace the drain plug if
(b) Unscrew the oil strainer from the
unserviceable.
compressor sump and discard preformed packing.
3. Installation. Installation is the reverse of removal (a
(2) Cleaning and Inspection.
above), except for the following procedure:
(a) Clean the oil strainer in stoddard
(a) Discard and replace the preformed
solvent and air-dry.
packing if damaged.
(b) Replace the preformed packing and
(b) Lubricate compressor assembly
oil strainer., if defective.
(3) Installation.
(a) Reassemble the oil strainer and
preformed packing to the compressor sump and torque
2-18.
Compressor Unit, Model AN-M4D
the oil strainer to 35 ± 5 inch-pounds.
Organizational Maintenance personnel are authorized to
replace the dipstick, drain plug and oil strainer.
(b) Reassemble the oil supply tube to the
oil strainer and torque the oil supply tube end nut to 70 ±
a. Dipstick.
(1) Removal.
10 inch-pounds.
(a) Unscrew and remove dipstick from
the top of the compressor oil sump (fig. 2-4).
2-19.
(b) Remove the preformed packing from
WARNING
the dipstick.
Gasoline is highly flammable, and
(2) Cleaning and Inspection.
can cause DEATH or severe burns.
(a) Clean dipstick with a clean dry cloth.
When removing, cleaning, inspecting
(b) Inspect the preformed packing and
and installing the fuel filter, some gas
dipstick for damage or deformation. Replace preformed
spill will occur. Keep open flame
packing and dipstick as required.
away from working area.
(3) Installation.
Organizational maintenance personnel are authorized
(a) Position preformed packing into
to replace the fuel filter. Refer to TM 5-2805-256-24P
packing ,groove on the dipstick.
for fuel filter service and accessories.
(b) Screw the dipstick into the oil fill port
on the compressor sump. Hand-tighten the dipstick.
b. Drain Plug.
2-14
