8.20 Fan Drive
8.20.1 Fan drive – Adjust and check drive belt tension
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 protective cover.
2. Check belt condition visually (→ Page 135).
Result: Measure for drive replacement (→ Page 143).
Checking V-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 suita-
ble tool.
3. Hold belt tension tester over belt drive until the measured value is indicated.
Part numbers Frequencies
Belt pulleys Fan drive Belt Initial assem-
bly at MTU
Initial opera-
tion with fan
Belt tension
adjustment
UPC.0K601A0515 UPC.06K01 2233 UPC.06K01B0324 47 Hz ±3 Hz 64 Hz ±1 Hz 56 Hz ±1 Hz
UPC.0K601A0515 UPC.06K01 2233 X00027176 46 Hz ±3 Hz 62 Hz ±1 Hz 55 Hz ±1 Hz
UPC.0K601A0515 UPC.06K01 2264 UPC.06K01B0325 43 Hz ±3 Hz 59 Hz ±1 Hz 52 Hz ±1 Hz
UPC.0K601A0515 UPC.06K01 2264 UPC.06K01B0326 39 Hz ±3 Hz 53 Hz ±1 Hz 46 Hz ±1 Hz
UPC.0K601A0516 UPC.06K01 2233 UPC.06K01B0324 46 Hz ±3 Hz 63 Hz ±1 Hz 57 Hz ±1 Hz
UPC.0K601A0516 UPC.06K01 2264 UPC.06K01B0325 43 Hz ±3 Hz 59 Hz ±1 Hz 53 Hz ±1 Hz
UPC.0K601A0516 UPC.06K01 2264 X00027176 45 Hz ±3 Hz 61 Hz ±1 Hz 55 Hz ±1 Hz
UPC.0K601A0517 UPC.06K01 2233 UPC.06K01B0325 46 Hz ±3 Hz 59 Hz ±1 Hz 51 Hz ±1 Hz
UPC.0K601A0517 UPC.06K01 2233 X00027176 48 Hz ±3 Hz 62 Hz ±1 Hz 55 Hz ±1 Hz
UPC.0K601A0517 UPC.06K01 2264 UPC.06K01B0326 40 Hz ±3 Hz 52 Hz ±1 Hz 45 Hz ±1 Hz
UPC.0K601A0518 UPC.06K01 2233 UPC.06K01B0324 48 Hz ±3 Hz 63 Hz ±1 Hz 55 Hz ±1 Hz
MS150049/04E 2017-04 | Fan Drive | 141
TIM-ID: 0000040791 - 003
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