6.9 Charge-Air Cooling
6.9.1 Intercooler – Checking condensate drain line for coolant discharge and
obstruction
DANGER
Unguarded rotating and moving engine components.
Risk of serious injury – danger to life!
• Take special care when working on a running engine.
WARNING
Engine noise above 85 dB (A).
Risk of damage to hearing!
• Wear ear protectors.
WARNING
Compressed air
Risk of injury!
• Do not direct compressed-air jet at persons.
• Wear protective goggles / safety mask and ear protectors.
Intercooler – Checking condensate
drain line for coolant discharge and
obstruction
1. With the engine running, check the conden‐
sate drain line on engine driving end for air
discharge.
2. If no air emerges, remove condensate drain
line and blow out with compressed air.
3. Replace obstructed drain line by new one.
4. Install condensate drain line.
5. If a large amount of coolant is continuously
discharged, the intercooler is leaking. Con‐
tact Service.
Emergency measures prior to engine start with a leaking intercooler
1. Remove injectors (→ Page 123).
2. Bar engine manually (→ Page 104).
3. Bar engine with starting system to blow out cylinder chambers (→ Page 105).
4. Install injectors (→ Page 124).
MS150031/03E 2011-10 | Task Description | 141
TIM-ID: 0000005300 - 002
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