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33.14
Checking/adjusting tooth backlash
•
Lock drive bevel gear in position with 36 mm
(1.4173 in) insert, BMW No. 33 1 720.
•
Fit measuring ring, BMW No. 33 2 600, with dial
gauge on crown wheel and secure to housing
with knurled screw (1).
•
Secure measuring arm,
BMWNo.332604,centrally on crown wheel.
•
With the palm of the hand, press crown wheel
into housing and check gear backlash by turning
backward and forward.
L Note:
Check the backlash at three points offset by 120 °,
turn bevel gear with crown wheel.
•
Take up excessively large gear backlash by fit-
ting a thin spacer and too little gear backlash by
fitting a thick spacer (1).
Gear backlash:
(adjust without oil) ...........................0.07...0.16 mm
........................................ (0.002756...0.006299 in)
33 2 604
RT330190
1
33 2 600
RT330200
90°
RT330210
1