Inspection and cleaning procedure
•Inspection: Automatic cooling fan coupling
Make an inspection of the following points. Replace the automatic cooling fan coupling if defective.
• the hydraulic oil sealed inside the coupling is not leaking;
• the coupling does not make any abnormal noise or rotate unevenly due to defects in the inside bearing when rotated manually; and
• the automatic cooling fan coupling does not move too much when pushed and pulled in the axial directions when the engine is cold.
• Cleaning: Automatic cooling fan coupling
When removing foreign matter from the bimetal, be careful not to press too hard against the bimetal.