11 28 010 Removing and installing/replacing drive belt for alternator (N47)
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Special tools required:
Necessary preliminary tasks:
- Remove intake silencer housing . See 13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE SILENCER HOUSING (N47) or 13 71 000 REMOVING AND REFITTING/REPLACING INTAKE FILTER HOUSING (N47 WITH SCR) .
- Remove clean air pipe . See 13 71 150 REMOVING CLEAN AIR PIPE (N47) or 13 71 150 REMOVING CLEAN AIR PIPE (N47 WITH SCR) .
- Remove acoustic cover at front.
Check drive belt for coolant and oil residues, replace if necessary.
IMPORTANT:
The drive belt must be replaced if it is contaminated with hydraulic fluid.
IMPORTANT:
Belt tensioner (1) is preloaded.
Increase preload on tensioning pulley (1) with tool (2) until special tool can be positioned on tensioning pulley 11 3 340 (1).
Preload belt tensioner (1).
Both bore holes, see arrow, must be flush.
Remove drive belt.
Assemble engine.