MTU 12 V 4000 G73 Operating Instructions Manual page 137

7.19 Fan Drive
7.19.1 Fan drive – Drive belt check / adjustment
Preconditions
☑ Engine is stopped and starting disabled.
Special tools, Material, Spare parts
Designation / Use
Optibell 2 belt tension tester
Preparatory steps
1. Remove protective cover.
2. Check belt condition visually (→ Page 133).
Result: For drive belt replacement, (→ Page 139).
Checking Vee belt tension
1. Switch on belt tension tester.
2. Hold measuring tip of belt tension tester over belt drive. Tap drive belt (arrow) with a suitable tool.
3. Hold belt tension tester over belt drive until the measured value is indicated.
Initial operation with fan
58 Hz ± 5 Hz
Part No.
Y4345711
Belt tension adjustment
51 Hz ± 5 Hz
MS150054/02E 2012-02 | Task Description | 137
Qty.
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