TM 5-3895-369-14
(21) Note +, -, or 0 etched on bottom of both
new and original ring and pinion gear sets.
Adjust shim thickness to compensate for the
PINION ETCH
difference between both figures as shown in
Table 5-4, Pinion Markings. Use Table 5-4
as follows:
(a) Locate +, -, or 0 number, from bottom
of original pinion shaft, in appropriate
column in Table 5-4.
MATCHED SET
(b) Locate +, -, or 0 number, from bottom
NUMBER
of new pinion shaft, in appropriate
column in Table 5-4.
(c) Find the box where original and new
numbers intersect.
(d) Either add to, or subtract from, original shim build-up as recorded in step (20). For example: If
the original pinion shaft is etched +2, and new pinion shaft is etched -1, subtract 0.003 inch
(0.076 mm) from total thickness of original shims. Remove or replace shims as appropriate.
Table 5-4. Pinion Markings
Old Pinion
New Pinion Marking
+1
+2
Marking
-1
0
+4
+3
-3
-2
-4
-0.003
-0.005
-0.004
-0.002
-0.001
-0.006
-0.008
-0.007
+4
0
.076
.051
.025
.127
.102
.178
.152
.203
-0.002
+0.001
-0.004
-0.003
-0.005
-0.001
-0.007
-0.006
0
+3
.051
.102
.076
.152
.127
.025
.178
.025
-0.001
+0.001
-0.003
-0.002
-0.004
+0.002
-0.006
- 0.005
0
+2
.025
.076
.051
.025
.051
.127
.102
.152
+0.001
+0.002
-0.002
-0.001
+0.003
-0.003
-0.005
-0.004
0
+1
.051
.025
.127
.076
.102
.025
.051
.076
+0.001
+0.002
+0.003
+0.004
-0.001
-0.002
-0.004
-0.003
0
.025
.025
0
.051
.076
.102
.076
.051
.102
+0.002
+0.001
+0.003
+0.004
+0.005
-0.001
-0.003
-0.002
-1
.051
O
.025
.076
.102
.05 1
.025
.127
.076
- 0.002
-0.001
+0.001
+0.002
+0.003
+0.004
+0.005
+0.006
-2
0
076
.025
.051
.102
.127
.152
.025
.051
+0.001
+0.002
+0.003
+0.004
+0.006
-0.001
+0.005
+0.007
-3
0
.127
.152
.102
.051
.076
.178
.025
.025
+0.005
+ 0.004
+0.006
+0.007
+0.003
+0.002
+0.008
+0.001
-4
0
.127
.076
.102
.152
.178
.203
.025
.051
0.000 TOP (INCHES)
.000 BOTTOM MM)
5-409
