Operating instructions

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
TIM-ID: 0000007438 - 001