Re: Re: IHC 1486
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Posted by Milan H. Dilworth on August 28, 1998 at 21:46:57:
In Reply to: Re: IHC 1486 posted by Milan H. Dilworth on August 27, 1998 at 21:41:59:
Mac,
I didn't get a photocopy of the service manual, but I did review the axle and bull pinion preload setup. I did make a couple of errors on the first post. Correction, but brief: Axle bearings setup for used bearings or bearings from different vendors.
:
1. Take load off both axles and loosen bearing endcap of opposite axle.
2. Tighten 3 of the 3/8" bolts [on the endcap] to 150 inch lbs. while rotating axle.
3. Loosen 3 bolts.
4. Retorque to 20 inch lbs. while rotating axle.
5. Torque to 50 inch lbs. not rotating axle.
6. Measure near 3 bolts with feeler gauge and average measurement.
7. Shim pack = average measured plus or minus .002".
Axle bearings setup for new bearings wherein cup and cone are from same vendor.
:
1. Take load off both axles and loosen bearing endcap of opposite axle.
2. Tighten 3 of the 3/8" bolts [on the endcap] to 250 inch lbs. while rotating axle.
3. Loosen 3 bolts.
4. Retorque to 50 inch lbs. while rotating axle.
5. Torque to 150 inch lbs. not rotating axle.
6. Measure near 3 bolts with feeler gauge and average measurement.
7. Shim pack = average measured plus or minus .002".
Bull pinion bearing setup, new or used.
1. Torque 3 - 5/8" bolts to 100 inch lbs while rotating shaft.
2. Loosen bolts.
3. Retorque to 50 inch lbs. while rotating shaft.
4. Torque to 100 inch lbs. not rotating shaft.
5. Measure with feeler guage near bolts and average measurement.
6. Add .015" (plus or minus .002") to the average gap measurement for the shim pack. NOTE: The bull pionion shaft has more endplay to allow it's gear teeth to meet with the large bull gear teeth. I hope this helps out. Milan
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