TM 5-3810-307-24-1-2
I-3-2
Rear Seal and Adapter Replacement. (Refer to Figures I-3 and I-4.)
NOTE
This procedure covers the replacement of the Single Cylinder Air
Compressor Rear Seal and Adapter Kit, Cummins kit part number
4089222. The repair kit includes an adapter, O-ring, gasket, and two flat
head screws.
Removal.
a.
Remove two bolts (1, Figure I-3) securing the back cover (2).
b.
Remove and discard cover gasket (3).
c.
Remove two flat head screws (4), if installed. Then remove and discard the metal pump
adapter (5).
d.
Remove and discard O-ring seal (6).
Installation.
a.
Lube new O-ring seal (6, Figure I-3) with clean oil, MIL-L-2104. Then insert the seal into
the fillet pocket formed by the corner of the rear bearing and the wall of the crankcase.
Refer to Figure I-4.
b.
Install new pump adapter (5, Figure I-3) into compressor while aligning the mounting
holes for the two flat head screws (4). Install and torque the flat head screws (4) to 5 ft-
lbs (6 Nm).
c.
Install back cover (2) with new cover gasket (3) and secure with two bolts (1). Torque
bolts (1) to 15 ft-lbs (20 Nm).
6
5
3
2
1
4
Figure I-3. Air Compressor Rear Seal and Adapter
I-8 Change-1