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Begin OCR Text:
P 1 2O. P 1 8OO
Before installing, check thaI the contact surfaces of
the caliper and retainer are cIean and undamaged
since it is ol vital importance fhat the caliper takes
up the correct position in relation to the brake disc.
Fit the caliper as shown in Fig. 16. Place on the
Iocking plate <4) and tighfen the attaching boIts
C3 and 5> and lock fhem. Connect ffe brake line
C6) and air-vent the wheel unit cylinders. On early
productěon models the brake line arrangement is
slightly different.
Check that the brake disc can rof8te between fhe
brake p8ds. Fit the wheel, see operation 6 under
''Replacing fhe brake pads''. VO_VO
2l932
Fig. l1 . Removing the fub.
_
If the brake disc cannot be reconditioned as descri-
bed above, or if it is cracked or damaged. it should
be replaced togefher with fhe hub. Regarding the
_ procedure lor this. see under ''Replacing or Bdjus-
ting fhe front wheel bec_rings'', Part 6.
When replacing the wheel studs. the old stud is
pressed out. alfer which an oversize stud is titted.
The latfer has a diameter of 16.3 mm <41(64''). The
hole in the hub should fherelore be 16.1_16.3O
, mm (O.6374.64l'') Cpress fit) and in the brake disc
16.5-16.7 mm CO.65_O.6S8'') Cclearance lit).
Rear _heeI _ra_e u_ilI
''O''_''' Dl_M__7LlH_
Fig. lO. Checking the run-out. h d
1. Remove the hUb Cap and 5pllt pln ln t e fIVe
shalt. Slacken the castle nut and wheel nuts
slightly. Jack up the car and place b1ocks
Bra_e djI_I unde_ the rear aKle. Remove the wheeI.
_ b k d h _d b d d h
The ra e l5C s DU e eKamlne aS regar G t e
friction surtace. run-out and thickness. There must
be no rust or scoring on tfe lriction surlace. The
run-out must not eKceed O.1 mm (O.OO4'') and is
_ measured as shown in Fig, lO, Cfeck firsf that the
wheet bearings are correctly adjusted and that the
h d_ __t _ th h b Th th_ k h _d
iSC i s seCUfe y on e U . e IC neS5 S OU
'' not vary more than O.O3 mm (O.OO1 2'') when the disc
is rotated one turn, since this can cause a vibrating
brake pedal.
The brake disc can be reconditioned by precision
turn'ing or grinding. Machining should be done
together wíth the hub. The fhickness of the disc
atter machining must not be less fhan 1 2.2 mm
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