TM 9-2320-272-24-4
NOTE
Coat bearings and races with clean gear oil before installation.
Using bearing replacer, install race (2) in bearing cap (1). Thick edge of race (2) must be toward
34.
small end (6) of bearing cap (1).
Install bearings (3) and (4) and race (5) in bearing cap (1). Use replacer to seat race (5) in bearing
35.
cap (1). Wide edge of race (5) must face away from face of cap (1).
Starting with same thickness of shims (9) as removed, place shims (9) over shaft (8) and on
36.
differential carrier housing (7). Carefully align holes in shims (9) to holes in carrier housing (7).
Place bearing cap (1) over shaft (8) and press bearing cap (1) into position on shaft (8) to differential
37.
carrier housing (7).
Install retaining plate (10) on shaft (8) with three screws (12). Tighten screws (12) 42-54 lb-ft
38.
(57-73 N-m) and install new safety wire (11) in screws (12).
Install new shims (13) and bearing cover (14) on differential carrier housing (7) with six new
39.
lockwashers (15) and screws (16). Select shims (13) of same thickness as removed. Tighten
screws (16) 60.100 lb-ft (81-136 N-m).
To measure helical pinion gear (17) bearing preload, wrap twine around helical pinion gear (17) and
40.
attach to bearing preload tester. Observe pointer and pull on bearing preload tester until helical
pinion gear (17) starts to rotate. Record value.
If original bearings are installed, bearing preload must be 4-8 lb-in. (.5-.9 N-m) If new bearings are
41.
installed, bearing preload must be 12-18 lb-in. (1.36-2.03 N-m).
NOTE
If preload is not within given limits, perform steps 42
through 45.
If preload is within given limits, go to step 47.
Remove six screws (16), lockwashers (15), bearing cover (14), and shims (13) from differential
42.
carrier housing (7). Remove shims (13) carefully to avoid creasing or damaging shims (13).
If preload scale (or torque) reading exceeds limits, add shims (13).
43.
44.
If preload scale (or torque) reading is less than lower limit, remove shims (13).
Install shims (13) and bearing cover (14) on differential carrier housing (7) with six lockwashers (15)
45.
and screws (16). Carefully align shims (13) with holes in differential carrier housing (7). Tighten
screws (16) 60-100 lb-ft (81-136 N-m).
Repeat steps 40 through 45 as necessary.
46.
5-450
