TM 5-3810-300-24 & P2
both on top of the "fixed" spacer, 180 apart. Press bearing cone in place with two tons pressure and with a suitable
sleeve that will bear against NJ the cone race. This process will compress the bar lead (or solder).
D.
Press pinion out of outer bearing cone.
E.
Measure the compressed bar lead (or solder) thickness with a micrometer. To this figure add .004" to determine the
thickness of the required variable spacer to be employed to obtain pinion bearing pre-load.
F.
Install variable spacer over pinion stem against gear side.
G.
Place a support under pinion head and press on the outer pinion bearing cone with a suitable sleeve that will bear
against the bearing inner race. Apply press pressure of approximately two tons to seat bearing rollers. Rotate
carrier and cap in this process. Remove from under press.
H.
Assemble pinion washer and nut. Tighten to specified torque of 800-1100 pound feet. To apply proper torque hold
pinion by placing a hardwood block between pinion teeth and carrier wall.
I.
Check for proper pinion bearing pre-load of 5-15 pound inches by installing appropriate wrench socket over pinion
nut. Wrap a cord or soft wire around socket and pull on horizontal line with a pound "fish" scale. Use rotating
torque, not starting torque. If rotating torque is not within 5 to 15 pound inches, use thinner hardened spacer to
increase, or thicker spacer to decrease, pre-load.
EXAMPLE: Assuming socket diameter to be 4 inches, the radius would be 2 inches and with 5 pounds pull would
equal 10 pound inches pre-load torque.
9.
Reassemble Differential and Gear Assembly.
Follow instructions as before for installing the differential and gear assembly ) in subsequent steps:
1. Adjust for differential bearing pre-load.
2. Adjust for hypoid gear backlash and check for tooth contact.
10. Assemble Inter-Axle Differential and Through-Shaft Cage Assembly.
A.
Install the input forward radial bearing snap ring into cage.
B.
Press the input shaft oil seal into cage, from forward side, flush with snap ring.
C.
Press the forward radial bearing on input shaft with suitable sleeve bearing against inner race.
D.
Position the input shaft radial bearing into the cage bore flush with forward snap ring and install the rear radial
bearing snap ring.
If input cage "O" ring has been scuffed or damaged in any way, replace with new.
E.
Install yoke or flange on splines and install washer, is used, and nut. Nut may be run up on threads only sufficient
for handling assembly in chain falls and later tightened to correct torque when assembly is mounted into housing.
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