Spicer Tandem Drive Axles Pro-40 Single Reduction and Single Reduction with Differential Lock - Manual (Page 50)

47 50
Forward Assembly
Change Backlash Setting
If you have too much backlash the ring gear needs to move
closer to the pinion. Back off the plain half adjuster, count the
number of notches you back it off, each notch equals about
0.003" of backlash.
In order to maintain the differential bearing preload you will
need to turn the flange half bearing adjuster the same
amount in the same direction. If you need more backlash
reverse this procedure.
1. Install carrier bearings caps and torque carrier cap
bolts to 350–428 lbs. ft. (475–580 N•m).
2. Recheck backlash: if the bearing adjusters were not
in straight or fully seated the backlash will change.
c. Used Gearing: Reset to backlash recorded
before disassembly.
d. New Gearing: Backlash should be between
0.006 and 0.018".
3. Check ring gear tooth contact pattern. Paint ring gear
teeth and check tooth contact pattern. Correct tooth
patterns. Checking and adjusting procedures are on
pages 61-62.
4. Install bearing adjuster cotter pins.
Measure Ring Gear Runout
Measure Ring Gear Total
1. Measure ring gear total radial run out. (Indicator
reading should not exceed 0.010").
2. Measure ring gear total back face run out (Indicator
reading should not exceed 0.010").
IMPORTANT
Fo
rward Assembly