Service Manual - Dana Corporation
Service Manual - Dana Corporation
Service Manual - Dana Corporation
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Final Pinion Bearing Preload Test<br />
Axle Model<br />
Forward Axle<br />
Nut Torque ft. lbs. (N.m) Press Load- Tons (Metric<br />
tons)<br />
D340, 380(P), 400-P 560 - 700 (759 - 949) Self<br />
Locking Nut<br />
D341, 381(P), 401-P, 402(P),<br />
403(P), 451-P<br />
780 - 960 (1057-1301) Self<br />
Locking Nut<br />
840-1020 (1140-1383) Metric<br />
Nut<br />
840* (1139) Slotted Nut and<br />
role pin<br />
13.5 - 15.5 (12.2 - 14.0) 5-12 (2.3-5.4)<br />
17 - 19 (15.4 - 17.2) 5-12 (2.3-5.4)<br />
17 - 19 (15.4 - 17.2) 5-12 (2.3-5.4)<br />
17 - 19 (15.4 - 17.2) 5-12 (2.3-5.4)<br />
Rear Axle (All models) 560-700 (759-949) 14-15 (12.7-13.6) 6-14 (2.7-6.4)<br />
Adjustments<br />
Spring Seal Reading (without<br />
pinion seal)- lbs (kg)<br />
*Torque nut to 840 ft-lbs. (1 139 N.m), Then continue tightening nut to align nut slot to nearest hole in pinion shank.<br />
4. Adjust Pinion Bearing Preload - If necessary, adjust pinion bearing preload. Disassemble the pinion bearing cage as recommended<br />
in this -manual and change the pinion bearing spacer. A thicker spacer will decrease preload. A thinner spacer will<br />
increase preload.<br />
IMPORTANT<br />
Use the correctly sized spacer. Do not use shim stock or grind spacers. These practices can lead to<br />
loss of bearing preload and gear or bearing failure.<br />
28<br />
<strong>Service</strong> Procedure
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