Replacing Poly-V Belt; (Inspection Iii); Poly-V Belt Tensioning Procedure - BMW R 1150 RT Repair Manual

Replacing poly-V belt

12 31 240

(Inspection III)

Replace poly-V belt every
60,000 km (37,000 miles)
e
Attention:
Work on the poly-V belt only when the engine is
cold.
•
Remove left side fairing panel.
•
Remove front intake pipe.
•
Disengage fairing bracket from end cover on left.
•
Remove front cover (1).
•
Loosen alternator mounting bolts (2, 3, 4).
•
Remove old poly-V belt.
•
Start by mounting the new poly-V belt on the
crankshaft pulley, then proceed to mount it on
the alternator pulley.
•
Install new poly-V belt.
1
4
3
12 3 551

Poly-V belt tensioning procedure

Poly-V belt installation procedure:
•
Mount the poly-V belt on the pulleys and tension
it slightly, then turn the crankshaft through one
revolution and relieve the tension on the belt.
•
Tension the poly-V belt in accordance with the
specified procedure.
Poly-V belt tensioning procedure:
1 Remove nut (2) and install tensioning
nut BMW No. 12 3 551.
2 Loosen the alternator mounting bolts (3, 4).
3 Tighten and hold tensioning
nut, BMW No. 12 3 551, with torque wrench.
4 Tighten upper retaining nut (4), then remove
torque wrench from adjusting screw.
5 Tighten all screws and nuts.
•
Installation is the reverse of the removal proce-
dure.
X
Tightening torque:
Preload for poly-V belt.................................... 8 Nm
Alternator
to alternator mount cover ............................. 20 Nm
2
RS2000181
00.57