CASE Dx34 - Oil Change question

[ColbyCulbertson]

I bought a used 2006 Case Dx34 at an auction a few weeks past. There are two questions to this post.

1. I was using the tractor for some light work around the property, just testing it out and seeing how it runs. Everything was running great, and then I started to hear a light knocking, the knocking gets louder and faster as the throttle pushed to higher RPM's. Thoughts on what this could be?

2. Was changing the oil, and noticed there is an engine oil fill on top of the engine down below teh gas cap. There also appears to be a second fill on the side of the engine on the right hand side? The cap is completley warn so I don't want to add oil through here unless I am 100% confident that is a second fill section. Anyone know if this is indeed a second area to fill the oil or if its for different flueds?

 

[ColbyCulbertson]

I bought a used 2006 Case Dx34 at an auction a few weeks past. There are two questions to this post.


2. Was changing the oil, and noticed there is an engine oil fill on top of the engine down below teh gas cap. There also appears to be a second fill on the side of the engine on the right hand side? The cap is completley warn so I don't want to add oil through here unless I am 100% confident that is a second fill section. Anyone know if this is indeed a second area to fill the oil or if its for different flueds?

UPDATE for anyone with the same tractor: The fill port on the right side of the tractor is a secondary fill port for the engine oil per a tractor mechanic.