MTU 12V4000M73 series Operating Instructions Manual page 189

WARNING
Internal load and residual pressure in the HP fuel system. Parts may be expelled at high speed on re-
lease.
Fuel may spurt out.
Risk of injury by flying parts and sprayed fuel!
• Only use specified tools and devices.
• Always wear protective goggles / safety mask.
NOTICE
Contamination of components.
Damage to component!
• Observe manufacturer's instructions.
• Check components for special cleanliness.
Preparatory steps
1. Allow HP system to cool down.
2. Shut off fuel supply to engine.
3. Remove cylinder head cover (→ Page 182).
Removing injector
1. Disconnect cable connector on injector.
Note: When the plug screw (1) is removed, fuel
emerges.
2. Place a suitable collecting vessel underneath.
3. Remove plug screw (1).
MS150045/03E 2018-08 | Injection Valve / Injector | 187