MTU 20V4000C55, Operating Instructions Manual

Page: 154 / 226

8.18.2 Fan drive belt – Replacement
Preconditions
☑
Engine is stopped and starting disabled.
Special tools, Material, Spare parts
Designation / Use Part No. Qty.
Torque wrench, 60–320 Nm
F30452768
Drive belt
(→ Spare Parts Catalog)
Preparatory steps
1. Remove protective cover.
2. Remove fan.
Version A – fan drive with belt tensioning pulley
Removing drive belt
1. Undo two hex nuts (4).
2. Increase the tensioning arm length by turning
the pull rod (3) until the tensioning lever (6)
can move freely.
3. Turn tensioning lever (6) to the outside.
Note: If necessary, shift fan clutch downwards
(→ Adjusting fan height).
4. Remove belt (1).
5. Clean belt pulleys.
Installing drive belt
1. Place new untensioned drive belt (1) on pul-
ley.
2. Turn tensioning lever (6) to the inside.
3. Install pull rod (3) with swivel heads (2, 5)
and hex nut (4).
4. Adjust fan height (→ Page 151).
5. Set belt tension (→ Page 151).
154 | Fan Drive | MS15043/00E 2016-04
TIM-ID: 0000060357 - 002