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7.19 Fan Drive
7.19.1 Fan drive belt– Tension check / adjustment
Preconditions
☑ Engine is stopped and starting disabled.
Special tools, Material, Spare parts
Designation / Use
Part No.
Qty.
Optibell 2 belt tension tester
Y4345711
1
Preparatory steps
1.
Remove guard cover.
2.
Check belt condition visually (→ Page 119).
Result:
If required, replace drive belt (→ Page 127).
Checking Vee belt tension
1.
Switch on belt tension tester.
2.
Hold measuring tip of belt tension tester over belt drive. Tap drive belt (arrowed) with a suitable tool.
3.
Hold belt tension tester over belt drive until the measured value is indicated.
Initial assembly at MTU
Initial operation with fan
Belt tension adjustment
36 Hz ± 5 Hz
49 Hz ± 5 Hz
44 Hz ± 5 Hz
M015675/05E 2011-10 | Task Description | 125
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