E101 to E199
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      3. E101 to E199

      E138 Front track twist mismatch! / E139 Rear track twist mismatch!

      Description of error

      Difference between the front track twist cant sensor and main cant sensor exceeds pre-set limit.

      Solution

      Position machine level and check all offsets for cant and grad on Mod 11, Type 14, 16 and 17 sensors.