Remove toothed belt - see operation "Toothed Belt, Remove and Install".
Remove toothed belt tension roller (1) from oil pump.
Install, Connect
[Connect] Toothed belt tension roller to oil pump - ensure that the locking lever (1) engages in the oil pump guide faces. [Connect] toothed belt tension roller to oil pump - tightening to torque moment takes place after setting the toothed belt tension.
Install toothed belt - see operation "Toothed Belt, Remove and Install".
Remove, Disconnect 
Install, Connect 