Haroon,
As you say, you are a electronics engineer with two years experience. Your degree is helpful, but does it qualify you as a elevator mechanic!
You say you work at an elevator service company and your not alone. Then let the qualified mechanics at your company handle this. Stick to what you are qualified to do. If you want to be involved in more then repairing electronic boards, apply yourself and acquire the proper education needed.
I imagine you to be about 26 years old and eager to show your employer what you can accomplish. Be careful in doing so you don't force your employer into a bad situation.