MCi Crusader II 1989 Maintenance Manual page 50

Date
1-1-89 ·
Page _ _
2 _- 2 2 _ _
MC-9 MAINTENANCE MANUAL
BEARING
CAGE
Figure 2·60. Shim Pack Adjustment.
1. Measure the thickness of the old shim pack that
was
removed from under the pinion cage with a micrometer. Record
the measurement for later use (Figure 2-61).
Figure 2-61. Measuring Thickness Of Old Shim Pack.
2. Look at the pinion cone ("PC") bariation number on the
old drive pinion that is being replaced. See Gear Set Informa-
tion, step 4 in earlier pages of this section for examples and
locations of the number. Record the number for later use.
NOTE: The pinion cone number can be
either 1,000ths of an inch or 100ths of a
millimeter. See the following examples.
PC+3. PC-3. +3 or -3 equal .003 inch.
PC+.03, PC-.03. +.03 or -.03 equal .03 mm.
To change inches to millimeters, multiply inches by
25.40.
To change millimeters to inches. multipiy millimeters
by 0.039.
3. If the old pinion cone number is a plus (+), subtract the
number from the old shim pack thickness that was measured in
step 2.
4. If the old pinion cone number is a minus (-). add the
number to the old shim pack thickness that was measured in
step 2.
NOTE: The value calculated in step 3 or 4 is
the thickness of the standard shim pack,
without a variation. ·
5. Look at the pinion cone ("PC") variation number on the
new drive pinion that will be installed. Record the number for
later use.
6. If the new pinion cone number is a plus
(+).
add the
number to the standard shim pack thickness that was calcu-
lated in step 3 or 4.
7. If the new pinion cone number is a minus
H,
subtract the
number from the standard shim pack thickness that was calcu-
lated in step 3 or 4.
NOTE: The value calculated in step 6 or 7 is
the thickness of the new shim pack that will
be installed. See the example in the follow-
ing chart.
Examples: Inches mm
1. Old Shim Pack Thickness .030 .76
Old PC Number. PC+2 - .002 - .05
Standard Shim Pack Thickness .028 .71
New PC Number. PC+5 +.005 + .13
New Shim Pack Thickness
.033 .84
2.
Old Shim Pack Thickness .030 .76
Old PC Number, PC-2 +.002 +.05
.Standard Shim Pack Thickness .032 .81
New PC Number. PC+5
+.005 + .13
New Shim Pack Thickness
.037 .94
3. Old Shim Pack Thickness .030 .76
Old PC Number, PC+2 - .002 - .05
Standard Shim Pack Thickness .028 .71
New PC Number, PC-5 - .1
New Shim Pack Thickness .023 .58
4. Old Shim Pack Thickness .030 .76
Old PC Number. PC-2 +.002 +.05
Standard Shim Pack Thickness
.032 .81
New PC Number. PC-5
- .005 • .13
New Shim Pack Thickness .027 .68
IMPORT ANT: Remember that the drive pin-
ions and ring gears must be replaced as
matched sets.
_,
~ )
\
J