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 TM 10-3930-660-24-2
REAR DIFFERENTIAL CARRIER ASSEMBLY MAINTENANCE - CONTINUED
0298 00
ASSEMBLY - CONTINUED
NOTE
Bevel pinion spigot end number can be in 1000ths of an in. or 100ths of a millimeter. Millimeters will be
indicated with a decimal point. Example: +3 = 0.003 in., + 0.03 = 0.03 mm. Be sure to convert millimeters to
inches by multiplying by 0.039 before performing the following calculations.
29.
If old bevel pinion cone number is a plus (+) value,
subtract number from old shim pack (28) thickness
measured in step 27. If old bevel pinion cone number
is a minus (-) value, add number from spigot end of
old bevel pinion (26) to old shim pack (28) thickness.
This is the thickness of the standard shim pack, with-
out a cone variation.
30.
Read number on spigot end of new bevel pinion (26).
Record number.
31.
If number on spigot end of new bevel pinion is a plus
(+), add number to standard shim pack (28) thickness
+1
calculated in step 27. If new pinion cone number is a
minus (-), subtract new pinion cone number from stan-
dard shim pack (28) thickness calculated in step 25.
This is the thickness of the new shim pack with cone
409-1245
variation.
Example 1
Example 2
Old shim pack thickness,
0.030
Old shim pack thickness
0.030
Old bevel pinion spigot end number, PC+2
-0.002
Old bevel pinion spigot end number, PC-2
+0.002
Standard shim pack thickness
0.028
Standard shim pack thickness
0.032
New bevel pinion spigot end number, PC+5
+0.005
New bevel pinion spigot end number, PC+5
+0.005
New shim pack thickness
0.033
New shim pack thickness
0.037
Example 3
Example 4
Old shim pack thickness
0.030
Old shim pack thickness
0.030
Old bevel pinion spigot end number, PC+2
-0.002
Old bevel pinion spigot end number, PC-2
+0.002
Standard shim pack thickness
0.028
Standard shim pack thickness
0.032
New bevel pinion spigot end number, PC-5
-0.005
New bevel pinion spigot end number, PC-5
-0.005
New shim pack thickness
0.023
New shim pack thickness
0.027
0298 00-7
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