DAF CF65 Series Service Manual page 311

4
CF65/75/85 series
3.3 INSPECTION AND PRESSURE TESTING, AIR INLET SYSTEM
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When pressure testing the air intake
system, the plugs may spring off if
they are not properly secured.
Check the condition and mounting of the air inlet
channels/pipes of the air intake system.
In case of doubt as to the proper sealing of the air
intake system, which is indicated by the following:
1. loss of power
2. high fuel consumption
3. unusual noises
carry out a pressure test to check the air inlet
system for leaks.
1. Remove the front engine encapsulation.
2. Remove the air inlet hose between the air
cooler and the inlet manifold.
3. Connect the inlet pipe, fitted with the special
tool (DAF no. 0694831) slightly turned, to the
air cooler.
4. Remove the air intake pipe between the air
filter housing and the turbocharger intake
port.
5. Install special tools (DAF no. 1329310) and
(DAF no. 1329311) on the turbocharger
intake port.
6. Connect an air pipe with reducer valve to the
sealing plug (A), and charge the system to
approx. 1 bar.
7. Use a soapy solution to check the whole inlet
system for air leaks. Also check whether the
pressure gauge of the reducer valve drops.
©
200324
XE ENGINE INLET/EXHAUST SYSTEM
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Inspection and adjustment
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