MTU — Ventilator drive - Drive-belt check and adjustment
Adjustments · Ventilator belt drive
From a MTU service manual covering: 12/16/18V 2000, 12V 2000 G23, 12V 2000 G43, 12V 2000 G63, 12V 2000 G83, 16V 2000 G23, 16V 2000 G43, 16V 2000 G63, 16V 2000 G83, 18V 2000 G63, 18V 2000 G83. Check it applies to your exact model before use.
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Procedure
- Remove screws and guard cover
- Check V-belt for contamination by oil, cracks, wear, chunking and overheating; replace if required
- Place belt-tension tester onto V-belt midway between pulleys (12/16V) or as applicable (18V)
- Press button uniformly until spring disengagement can be heard and felt
- Read off measuring value at intersection of indication arm and KG scale
- If measured value deviates, readjust belt tension
- Loosen securing screws and locknut, screw in tensioning screw to set tension
- Tighten locknut and securing screws with torque wrench
- Install guard cover
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 12/16V new V-belt 660 N; used 510 N
- 18V new V-belt 670 N -50 N; used 570 N -50 N
- 12/16V securing screws 100 Nm
- 18V securing screws 69 Nm
Source: MTU service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.