Specifications, Assembly Clearances And Permissible Wear Of Steering Mechanism (Steering Box), Tie Rods And Levers; Steering Tests - Fiat 411 R Service Manual

Steering {@518-
After adjustment. check the steering wheeis aiignment with the tractor axis; nevertheless a toe—in of abeut
5 mm (0.'|Q69") and a camber of 2° are acceptable.
Check tightening of the steering lever baits and the cross tie~rod ciamps and check tie-rods and levers
fgf gtraightness, to avoid eariy front tire wear.
sP£c%r=z<:A"r1o:~ss, ASSEMBLY CLEARANCES mm PERMISSEBLE WEARVOF swaaams
mscmmssm rsvzsrasm BOX), "ma-zoos AND LEVERS
_ ~—~ * — *' "f "W ! *" "' ' "*** """"" 3 ' ' ' ' 7"" "' i
: 5 1 i i
i g Wear 1
r i nah?) , Assernbiy clearances mm (in) E limiis 3
I mm U" I mm {in}
i i
Steering box bush inner diameter 34,925 to 34,050 ' 2
0.3750 to 1.3160} ~ -
Between steering roiler shaft | 0,025 to 0,075 . 0,15
and its steering box bush (00010 fio 0.0030] E (00059) k
Steering roiier shaft diameier 34, Q00 to 3d B75
~ 0.3740 xG 1.3.30) , 5 '
P . . . .
i Coverbushinnerdiameier{afierpress | 34[g12m 34.93? I
i fining) 1 (13745 to1.3755) ' _
i l Ba-.weera steering roiler shaft 0312 10 {L052 5 '
"i "" mi i iwl anditsbush °"s'e""'g hm' (00005 \° 00024) - moose) '
Steering control rolier shaft diameter 34,875 to 313,900 Cover - ;
1 (153730 'I0 1.3740) '
Y Upper bush inner diameter of steering
transrnissinn lever
29,020 10 29.0729};
_ (1-1425 *9 31445) Between upper bush inner
_ _ _ ,_ __ i_, _ _ diameter and ihe steering 0,020 to 0,105 : 0,35
i ' transmission lower iever (00003 to 0.0041') (00138) ;
Steering transmission ieverpivot diam- 28,96'! to 29,000(°) pivot _
i 9421' (Section A-A, Fig. 126) ('M404 io 1.1417) ' '
i !
inner diameter of lower bush of steer» 38,025 ta 38,087 w
¢ !
mg arm 0.4910 to 1.-£995} B , 0 I b h . ;
EIWEEI1 DWQF U5 IHFEEF E 0625100126 0'35
~ K —— ---z' V —r — i diameter and the steering 5 '6 . ' r
arm iower pivot - ((100.0 10 0.0050) (00138) i
Steering arm pivot diameter ! 37,961 to 32,000 1 Z
I 0
7 (14945 in 1.-mar) i
i __ _____ _ _ _____________ ___§ __ _________i M _ ________ _ __ _________ __,__
| " " i . 1
I i
1 M
' Drag-link bush inner diameter 12,000 to 12,043 ;
' ' (04724 to 0.4741)
___ _W___ W __ _,_ Beiween drag-fink end bush 0,000 is 0,070 0,3 '
f and its paw (mono to 0.0025) <u.e11a)
; Drag-fink pivct djameier ' 2 1i,9T3 to 12,000 '
= i (06714 To 0,4724)
1 Note. - The steering arm upper and iuwer bushes shali be mounted into their seats on the support wiih an inierference
i i of 0,05 io 0,28 mm (CL0020 in 0.0091 in), bushes §or steering bu: side cover shalt be mounted with an inierference
i , of o,o1s to 0,053 mm 01.0005 to o.ua2s in}. ' 5
Assembiing iorque sf steering transverse tiered ciamp screws is of 2.5 kgm {:83 'it.ib).
(O) The data are the pre-modification ones; the post-modification ones (from Tractor with irame Na. 402251) have been increased
of 1 mm (D.il391$" in}.
76
!
i
|
i
1
I
\
I
i
¢
i
I |
. . . . . . . . . . - . . . . . . . . . . v ~ _ ' _
€ ' , . ' \ u . ' _ _ _ , . .