7.19 Fan Drive
7.19.1 Fan drive – Drive belt tension 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 154).
Result:
For drive belt replacement, (→ Page 161).
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 displayed.
Initial operation with fan
58 Hz ± 5 Hz
Belt tension adjustment
51 Hz ± 5 Hz
MS150029/02E 2013-03 | Task Description | 159
Part No.
Qty.
Y4345711
1