Disconnect and plug connection 5 (Y11 - switchover valve block) from the vacuum distribution block (36). Connect vacuum/pressure tester to the disconnected pneumatic line. Refer to the respective vacuum diagram in 33 depending upon the indicated code in the left display window (from 13 ). Permissible leakage of the actuators with pneumatic lines at 400 mbar vacuum per minute is 30 mbar.

Conventional tools, test equipment

Description	Brand, model, etc.
Plug	000 987 29 45
Connector	129 800 95 15