MTU — Battery-charging generator drive - Drive-belt check and adjustment
Adjustments
From a MTU operator's manual covering: 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.
Applies to: MTU 12V 2000 G43 engine, MTU 12V 2000 G83 engine, MTU 16V 2000 G43 engine, MTU 16V 2000 G83 engine, MTU 18V 2000 G83 engine
Procedure
- Remove guard cover.
- Check belt for contamination by oil, cracks, wear and overheating; replace if defective.
- Place belt-tension tester onto drive belt midway between the belt pulleys.
- Press button uniformly down until spring disengagement can be heard and felt.
- Take off belt-tension tester without changing position of indication arm.
- Read off measuring value at intersection of indication arm and 'KG' scale.
- Specified belt tension for new drive belt: 450 N -50 N; used drive belt: 350 N -50 N.
- If measured value deviates, readjust belt tension.
- To adjust: loosen securing screws, tension belt with tensioning nut, tighten securing screw (2) to 40 Nm +/- 4 Nm, tighten securing screw (3).
- Install guard cover.
Tools required
- Belt-tension tester Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- New drive belt 450 N -50 N
- Used drive belt 350 N -50 N
- Securing screw (2) 40 Nm +/- 4 Nm
Source: MTU operator's 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.