4-1 Inspection and Maintenance 4Inspection and Maintenance 4-1 Inspection and Maintenance Daily Inspection Basically, check the following during operation. 1) There are no errors in the installation environment. 2) There are no errors in the cooling system. 3) There are no abnormal vibrations or sounds. 4) There are no abnormal overheat or discoloration. 5) There are no abnormal odors. 4 Cleaning Inspection and Maintenance Always keep the Regenerative Braking Unit clean for operation. Lightly remove any dirt with a soft cloth moistened with a neutral detergent. Note: Do not use such solutions as acetone, benzene, toluene, or alcohol for cleaning.
Doing so may cause the Regenerative Braking Unit surface to dissolve or its coating to come off. Periodic Inspection Check the parts that cannot be checked without stopping operation, as well as those that require periodic inspection. 1) Check that there are no errors in the cooling system (Clean the air filter). 2) Check that all parts that need tightening are secure (Screws and bolts may become loose because of vibration or temperature change). 3) Check that there is no corrosion or damage to the conductors and/or insulators. 4) Measurement of insulation resistance 5) Check and replace the capacitor. 4-1