TATA PUNCH-SERVICE MANUAL

AMT KIT 20 INSTALLATION: NOTE After ‘Transmission Control Unit’ dismounting the relevant screws must be discarded too.  Verify that the electro valves, pressure sensor and ground tab connections does not show any visible anomalies in displacement or damaging.  Verify the right cleanliness of the electro valve block on the ‘Transmission Control Unit’ mating side. No contamination from foreign materials is acceptable (oil, dust, metal burrs, etc.). If necessary, cleaning process must be previously approved by ‘MAGNETI MARELLI’.  Position the ‘Transmission Control Unit’ over the electro valve block, still using for reference the two threaded rods and moving it parallel towards the mating surface. Insertion of all the electro valves, pressure sensor and ground tabs must be obtained by appropriate load on the ‘Transmission Control Unit’ heat sink and following handling precautions.  Once the ‘Transmission Control Unit’ is positioned mated to the electro valve block, remove the two threaded rods.  Insert the new four ‘Transmission Control Unit’ fixing screws into the corresponding holes and tighten each screw by applying a torque of 6.0 ± 1.2 Nm, following the order shown in the image below. Please consider that screw on pos. 1 is M5 x 55and screws on pos. 2, 3 and 4 are M5 x 68.  Engage the two female connectors with the cable on the ‘Transmission Control Unit’. NOTE  If the TCU will be dismounted from EV Block it is not allow to mount it again.  After TCU dismounting the relevant screws must be discarded too  The surface of the electro valve block must be ABSOLUTELY clean and free from oil or other polluting substances  NEVER use improper tool (screwdrivers, etc) to lift and extract the TCU from the electro valve block  Any extraction tool (if any) that will be developed must be submitted to MM approval  MM will not be responsible for malfunctions or claims following operations not described in this document