1010
Model Code Page
67. Powered front axle Carraro
1. 10. 1999
8450--8950 670 2
Technical Data
Axle type Carraro 20. 29.......................................................................
Electro---hydraulic differential lock (HiLock) standard..........................................
Ratio, differential 2,538.................................................................
Ratio, hub reduction gears 6,923........................................................
Total ratio 17,570......................................................................
Ratio, front axle---rear axle 1,315.........................................................
Steering angle, adjustable max. 55˚.........................................................
Oscillation angle ±7˚.................................................................
Caster 6˚.........................................................................
KPI 7˚............................................................................
Camber 1,5˚........................................................................
Toe --- in 0 --- 5 m m........................................................................
Flange distance 1900.................................................................
Oils:
--- in differential 6litres..................................................................
--- i n hu b s 2x1,5 litres.......................................................................
--- o i l q u al i ty (e . g . Va lt r a A x l e) 8 0W / 90 GL --- 5 ( L S )......................................................
Setting values
Bevel pinion shaft:
--- b ea ri n g pr e --- l o a d (m e a s u r e d wi th a s p r i n g b al a n c e o n the sha f t , Ø 3 4, 8 m m ) 3 --- 5 k g...........
--- thickness of shims for positio n adjustment (with incr ement of 0,1 mm) 2,50---3,40 mm.................
Differential:
--- bearing pre---load (measured with spring balance on the bevel pinion shaft, Ø 34,8 mm)
is bevel pinion shaft bearing preload+ 6---9 kg..............................................
--- tooth backlash, bevel pinion---crown wheel 0,17---0,23 mm........................................
--- thickness of thrust washers for differential side gears (with increment of 0,1 mm ) 1,45---1,55 mm.......
--- tooth backlash, differential pinions---differential side gears 0,13---0,18 mm............................
--- t h i c kn es s of ste e l d i s cs i n di f f e r e n ti a l lock (8 p cs ) 1, 4 3 --- 1,57 m m...................................
--- thickness of friction discs in differential lo c k (7 pcs) 2,24---2,36 mm.................................
Others:
--- End float of central pivot bearing brackets 0,1---1,1 mm.........................................
Tightening torques
Hubs:
--- Hub cover (planet gear carrier) bolts (2 pcs) 25 Nm.......................................
--- Planet gear fixing bolts 80 Nm.........................................................
--- Ring gear support fixing bolts 230 Nm....................................................
--- K i ng p i n cov e rs 190 Nm................................................................
--- F r on t wh ee l b o l ts 550 Nm..............................................................
--- Front wheel stud bolts to hub flange (threads) 70 Nm.....................................
--- Tie---rod tapered joint to knuckle housing 220 Nm..........................................
Bevel pinion shaft:
--- Shaft nut is tightened until the bearing pr e---load is correct.
--- Bolts between bevel pinion shaft drive flange---propeller shaft driv e flange 70 Nm..............
--- drive flange attaching bolts on bevel pinion shaft ( 2 pcs) 60 Nm.............................
Differential:
--- Differential bracket bolts to axle housing 170 Nm...........................................
--- Bearing covers of differential bearings 265 Nm............................................
--- C r ow n wh e el fi x i n g b o lts 70 Nm........................................................
--- Locking nuts for differential bearing adjusting nuts 13 Nm..................................
Others:
---Frontaxlecentralpivotbearingbrackettotractorframe 380Nm..............................
--- T ie --- rod b a ll j o i n t 300 Nm..............................................................
--- Tie--- rod ball joint locking nut 250 Nm....................................................
--- Locking nut for st eering angle limiting bolts 150 Nm........................................
--- Bolts of steering cylinder end flange 120 Nm..............................................
--- Locking bolts for central pivot bearing brackets 200 Nm.....................................
--- Steering cylinder hoses 45 Nm.........................................................
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