Description of defect

In the cooling system of a prime mover, some fastening bolts between the electric fan motor and the cover are not tightened properly. If the fan motor continues to be used in the same condition, the bolts may loosen and fall off, causing interference between the fan and the cover, which may cause abnormal noise and damage to the fan.

Improvement details

Remove said bolts, apply adhesive, and retighten to the specified torque.

Chassis number of target vehicles

Legacy

BL5-００２０４０ ～ BL5-００６７８５
BP5-００２０１９ ～ BP5-０１７０２３

Automotive maintenance cannot determine the cause based on symptoms alone.
Be sure to perform diagnosis and inspection before determining the cause of the failure.