Fig. 1. IH Single Reduction Tandem Rear Axle

Fig. 2. Power Divider and Diff Carrier In Rebuild Stand

TM-5-3820-256-24-5 Drilling System Well Rotary Truck Mounted Air Transportable 600 Feet Capacity Model LP-12 NSN 3820-01-246-4276 Manual
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SERVICE MANUAL Fig. 1. IH Single Reduction Tandem Rear Axle GENERAL This service manual covers rebuild procedures and specifications for the IH built Single Reduction Tandem Axle. Both forward rear and rear rear axles of the models RA-341, 351 and 355 rear axles are included. The repairs are performed principally on the power divider and differential carrier of the forward axle and the differential carrier of the rear rear axle after they are removed from the axle housing. DESCRIPTION The IH thru-drive tandem rear axle consists of a heavy-duty single reduction axle with integral power divider and inter-axle differential for the forward rear axle and a conventional heavy-duty single reduction axle for the rear -rear axle. Differential parts, ring gear and pinion sets, bearings, and axle shafts are common between the forward and rear axles. The forward axle has the power divider anc inter- axle differential mounted on the forward side of the differential carrier. A thru-shaft carries driving torque through the forward axle housing to the rear rear axle. Driving torque is delivered to the forward rear axle via the intermediate idler gear and a driven gear mounted on the pinion shaft of the forward axle. The complete differential carrier and power divider may be removed from the forward axle housing as a unit with the axle mounted in the truck as well as when the axle is removed. Also the power divider may be removed individually without removing the differential carrier. This permits servicing the power divider without disturbing the forward axle differential. REMOVAL FORWARD REAR AND REAR REAR AXLES Remove Axle Shafts From Wheels and Housings 1. Drain lube from both axle housings and the power divider. To drain power divider, remove plug from bottom of intermediate case. 2. Take off all nuts from studs around rear wheel hub. 3. Loosen shaft from hub by striking center of axle shaft flange with 2.3 - 2.7 Kg (5-6 lb.) hammer or sledge. 4. Pull axle shafts from housing. CTS-4044 PRINTED IN UNITED STATES OF AMERICA Page 3

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