A man kneels down by a machine .
A man is kneeling to fix a machine .
A man kneels down by a machine.
A man is kneeling to fix a machine.
The man is kneeling next to a machine, but we do not know why he is kneeling next to it.  He could be taking a break and looking at it without the intent to fix it.  We have no indication from the photo that the machine is broken.
The man is kneeling next to a machine , but we do not know why he is kneeling next to it . He could be taking a break and looking at it without the intent to fix it . We have no indication from the photo that the machine is broken .