Exhaust Turbocharger - MTU 20 V 4000 M93 x Operating Instructions Manual

7.7 Exhaust Turbocharger

7.7.1 Compressor wheel – Cleaning
Preconditions
☑ Engine is stopped and starting disabled.
Special tools, Material, Spare parts
Designation / Use
Cold cleaner
WARNING
Compressed air gun ejects a jet of pressurized air.
Risk of injury to eyes and damage to hearing, risk of rupturing internal organs!
• Never direct air jet at people.
• Always wear safety goggles/face mask and ear defenders.
WARNING
Chemical substances.
Risk of irritation and chemical burns!
• Observe the instructions of the cleaning agent manufacturer.
NOTICE
Incorrect installation of electric lines .
Damage to component!
• Note down line assignment to connections before removal.
NOTICE
Inappropriate cleaning tool.
Risk of damage to component!
• Observe manufacturer's instructions.
• Use appropriate cleaning tool.
Preparatory steps
1. Drain engine coolant (→ Page 158).
2. Remove air filter (→ Page 141).
3. Remove exhaust system after exhaust turbocharger.
4. Remove exhaust flap with actuators.
5. Remove air intake.
Compressor wheel – Cleaning
Note: Do not use wire brush, scraper or similar tools for cleaning!
1. Clean compressor housing with paint brush or smooth brush.
2. Clean compressor wheel and bearing housing with cold cleaner.
3. Thoroughly blow out all parts with compressed air to remove cold cleaner.
MS150048/04E 2013-07 | Task Description | 137
Part No. Qty.
X00056750 1