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7.8 Attach Exhaust Suction System
Danger of poisoning by exhaust gases in the test room!
• Use an exhaust suction system.
1 Place the exhaust suction system close to the exhaust pipe and switch it on.
Risk of damage!
A certain distance should be maintained from the vehicle because of possible heat
accumulation in the exhaust suction unit which may cause damage to vehicle or paint.
7.9 Position Cooling Air Fan
1 Position the cooling air fan in front of the vehicle’s radiator.
2 To make sure that the fan remains in place during operation, use the fixing levers on the
casters of the fan.
3 Switch on the air cooling fan.
Risk of damage!
Cables and tightening straps can get between tires and rollers due to the air flow.
7.10 Bring the Vehicle up to Operating Temperature
This can be done using the load simulation, e.g. with a constant traction (see section "Load
Simulation").
7.11 Vehicle Ready for Testing
The vehicle is ready for testing when all the preparation steps for testing have been completed.
Risk of hearing damage due to high noise level!
• Use ear protection which is approved for up to 120 dB(A).
Noise levels of over 100 dB(A) are possible during vehicle testing.
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