Specifications

Problem:
The belt drive fails because of a broken tensioning pulley.
Cause:
The pulley has been split in the middle as a result of an
unacceptable external action (spring contact).
Solution:
Always check that the tensioning spring has been positioned
correctly. Otherwise, dangerous contact can occur with the
tensioning pulley’s running surface which is irretrievably
damaged as a result.
Tension spring
Broken tensioning pulley
CT 738 K1
Mitsubishi, 1.3/1.5 Motortyp 4 G, various
ContiTech Technical Info 40
Pulley failure as a result of incorrectly itted tension spring