Replacement - MTU 12V4000C*5 series Operating Instructions Manual

8.19 Fan Drive
8.19.1 Fan drive – Drive belt tension check / adjustment
Preconditions
☑ Engine is stopped and starting disabled.
Special tools, Material, Spare parts
Designation / Use
Optibelt TT belt tension tester
Preparatory steps
1. Remove protective cover.
2. Check belt condition visually (→ Page 237).
Result: For drive belt replacement (→ Page 242).
Checking V-belt tension – Rock-
ford S270 fan clutch
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.
Initial assembly at MTU
None
240 | Fan Drive | MS15041/03E 2018-08
Initial operation with fan
60 Hz ±1 Hz
Part No.
Y4345711
Re-tensioning
52 Hz ±1 Hz
Qty.
1