MCi Crusader II 1989 Maintenance Manual page 59

Date
1-1-89
Page 2-31
MC-9 MAINTENANCE MANUAL
pinion will move toward the ring gear (Figure 2~93). To correct a
low contact pattern (Figure 2-91), increase the thickness of
shim pack und.er the bearing cage. When the thickness of the
shim pack is increased, the drive pinion will move away from
the ring gear (Figure 2-94).
c. Install the drive pinion; bearing cage and shims into
the carrier. See the procedure on previous pages.
d. Repeat steps 2 to 5 until the contact patterns are in the
center between the top and ;bottom of the gear teeth.
6. Adjust backlash of the ring gear within specification
range to move the contact patterns to the correct location in the
length of the gear teth. See the procedure on previous pages.
a. Decrease backlash to move the contact patterns
toward the toe of the ring gear teeth (Figure 2-95).
MOVE PATTERN TOWARD TOE
LOOSEN ADJUSTING RING
THIS SIDE
TIGHTEN ADJUSTING RING
THIS SIDE
Figure 2-95. Moving Contacf Pattern Toward
Top Of Ring Gear Teeth.
b. Increase backlash to move the contact patterns toward
the heel of the ring gear teeth (Figure 2-96).
MOVE PATTERN TOWARD HEEL
TIGHTEN ADJUSTING RING
THIS SIDE
~•______,.
•
INCREASE
BACKLASH
LOOSEN ADJUSTING RING
THIS SIDE
Figure 2-96. Moving Contact Pattern Towcrd
Heel Of Ring Gear Teeth. .
c. Repeat steps 2 to 4 and 6 until the contact patterns are
at the correct location in the length of the gear teeth.
7. Install cotter keys, pins or lock plates that hold the two
'\laring adjusting rings in position. Use the following proce-
Jres.
a. Cotter Keys - Install cotter keys between lugs of the
adjusting ring and through the boss of the bearing cap. Bend
the two ends of the cotter key around the boss (Figure 2-97).
b. Pins - Install pin through boss of the bearing cap until
the pin is between lugs of the adjusting ring. Use a drift and
hammer to install the pin (Figure 2-97).
c. Lock Plates - Install lock plate on bearing cap so that
the tab is between lugs of the adjusting ring. Install the two
capscrews that hold the lock plate to the bearing cap. Tighten
the capscrews to correct torque value. See the torque chart
later in this section (Figure 2-97).
COTTER
KEY.
THREADED HOLES IN
CAP WHEN LOCK
PLATE IS USED
SHOWN WITH COTTER
KEY INSTALLED
Figure 2•97. Fastening Bearing Adjusting Rings.
INSTALLING AND ADJUSTING
THE THRUST SCREW
Specification:
Clearance between thrust screw and ring gear - .025 to .045
inch (.65 to 1.14 mm). Loosen the thrust screw½ turn. 180°.
1. Install the jam nut on the thrust screw. one half the dis-
tance between both ends (Figure 2-98).
2. Install the thrust screw into the carrier until the screw
stops against the ring gear !Figure 2-98) .
Figure 2-98. Installing Thrust Screw.