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7.12.8 Exhaust flaps – Coupling rod replacement
Preconditions
☑
Engine is stopped and starting disabled.
☑
Operating voltage is not applied.
Special tools, Material, Spare parts
Designation / Use
Part No.
Qty.
Torque wrench, 6-50 Nm
F30027336
1
Ratchet adapter
F30027340
1
Assembly paste (Ultra-Therm MTU)
50547
Coupling rod
(→ Spare Parts Catalog)
1
Coupling rod
(→ Spare Parts Catalog)
2
Locknut
(→ Spare Parts Catalog)
Locking screw
(→ Spare Parts Catalog)
Washer
(→ Spare Parts Catalog)
WARNING
Exhaust flaps / air flaps close rapidly.
Risk of crushing!
• Using a suitable tool, check exhaust flaps / air flaps by pressing the actuating linkage to its limit
several times and releasing it.
WARNING
Component is hot.
Risk of burns!
• Wear protective goggles.
Removing coupling rods (bypass and EGR shutoff flaps)
Note:
For installation position of exhaust flaps, refer to overview (→ Page 144).
1.
Remove guard plates of exhaust flaps.
2.
Remove locknuts (2).
3.
Take off washers (1).
4.
Remove locking screws (5) and (4).
Result:
Lever detached from actuator output shaft.
5.
Remove coupling rod and lever.
6.
Remove washers (3).
MS150112/01E 2014-10
| Task Description | 149
TIM-ID: 0000044549 - 003