Case 580SR Service Manual page 484

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Screw the ring nut (10) in, using the wrench

380003218 for ring nut and for pinion retainer.

The torque setting is given by the preloading meas-

urement on bearings; tighten the ring nut (10) grad-

NOTE: if the tightening is excessive, the collapsible

spacer must be replaced and the procedure repeat-

ed. When you check the preloading, it is advisable

to beat slightly both pinion ends with a soft hammer,

so as to help setting the bearings.

Carry out the preloading measurement P of the pin-

ion taper roller bearings, using a dynamometer

whose cord is wound on the end of pinion spline.

The adjustment is carried out by increasing the ring

nut torque gradually, being careful not to exceed.

All preloadings must be measured without the seal

Once the requested preloading value is achieved,

stake the ring nut, using a hammer and a chisel.

SECTION 25 - FRONT AXLES

P = 9.2÷13.7 daN

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