Renewing Poly-V Belt; (Every 60 000 Km/36 000 Miles); (Inspection Iii); Poly-V Belt Adjusting Procedure - BMW R 1200 C Repair Manual

Renewing Poly-V belt

(every 60 000 km/36 000 miles)

(Inspection III)

12 3 510
•
Remove the cover.
•
Use the spark plug cap assembly tool from the
toolkit to pull off the spark plug caps.
•
Use spark plug wrench, BMW No. 12 3 510, to
unscrew and remove the spark plugs.
TDC
•
Remove the horn with its mount.
•
Remove front cover.
•
Remove vent line (1).
C000060
1
C000070
3
4
1
•
Slacken off alternator mounting screws (1,3,4)
and install a new Poly-V belt if necessary.

Poly-V belt adjusting procedure:

Poly-V belt installation procedure:
•
Place the Poly-V belt in position, tension it and
turn the engine over once, then release belt ten-
sion.
Poly-V belt tensioning procedure:
1. Screw hex nut (1) on adjusting screw (2) up
handtight (no tools to be used)
2. Tighten adjusting screw (2) with a torque wrench
and keep it under tension.
3. Tighten upper retaining nut (3), then release the
tension at the adjusting screw.
4. Tighten all screws and nuts.
X
Tightening torque:
Poly-V belt preload......................................... 8 Nm
Alternator to alternator support cover........... 20 Nm
Vent line at generator mount cover:
Banjo screw ................................................. 25 Nm
Machine screw............................................. 10 Nm
e
Caution:
Install the vent line with new O-ring seals.
2
RS110480
00.17