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Service Department
Dare
J
NCMEMBER 1gg1
*r
Da*rabution
IDDE, 9OO
No. 900-77L-L3BuK
Sulcject: IIAI{GER OF OVRTIG{TENING I/,IHEEL NUIS
Al,P S$ERy'I. oF Wiffiil Jg{rS_rro}r
.USEp
'...1",:i,iitl'
- 1:o;'i:,;+ *
'
Sore instancres of incrcrrectly tightened l,frreeI nuts harre been bror.lght'tot orili,'
attention. We woril-d, therefore, rernind dealers to be aware of th6 follcnring
points during nornnJ- servicing procedures.
Steel htreels
Used wheels should be checked arotu:d the wheel_ nut holes fon any deformity
of the nut locating boss and the forrnation of cracks frorn ttre hlle
Ersure that the oonical face,,of the ld:eel- nut does not protmde toooutwards.
far through
tlie imle.
i
t"
Position of vrheel nut in neur wheel
Limit of permissible wear using new vrheel
nut
/A\
If the l*reel nut protnrdes too far thror:gh the rafrreel dtre to over_
tightening or wear of ttre v,ireel nut/*reel conical seat, cracks can
form in the boqf of ttre wheel.
Tlorque lftee1 nuts to 64-73ft 1bs.
Dc not use inpact wrenches.
i".
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continuedr/
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Tclephone
Ofilcr:: &lah Hc'-r"i, F
Page 2
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Page 2 of 2-,
900-771-l-38rK
Whee1 Nuts
A re\rie$, of tte variorr-s t,ttreel huts available is picttrred belot'r' Do not
in@r<jharrge.
a
iillfr tilisrrlt'":" i j' - "''t':
"'..r"r d,Firiilllla$..S!6
3
Conical wheel nut for steel wheels up to
IgBl year models'
Part. No. 89 09 I45
Wheel nut with flsnge for aluminium
wheels up to 1981 year models
Part No. 89 19 656 (J9) 1197, EMS
"
la
89 19 787 (19) ?2988 Turbo
al
#
Conical wheel nut for steel wheels as from
lgBZ year models
Part trlo. 89 47 277
Conical wheel nut for aluminium wheels as
from l9B2 year models
Part I'Jo. B9 47 28,
i^
t*rlIst
TR)( ltreel'
Special attentisr stpuld be paid to ttre fact that the 1982
nut locaticn
v*reel
sjmilar at firsJ g1an* to pierrior:s wheels' has crcnical
instead of sleeve nuts.
IIIIDGS
^