During substation maintenance you need to follow the substation maintenance manual. This is necessary for you to be able to carry out the maintenance work perfectly. There are other maintenance tasks that will require a special procedure. Carrying out those processes without having a manual close to you can easily lead you to causing more harm to the machines in the substation instead of improving their condition. There are times you may follow the manual during your regular maintenance in the substation and you end up failing to get the meaning of some information on the substation maintenance manual.
Instead of guessing you need t consult the providers of the manual for them to explain to you the meaning of the procedures that you are not getting right. This is necessary because in case you forge a procedure it can consume your time in implementing the procedure which may end up turning out to be unnecessary.