751 noise from chain drive area?

[Ptjeep]

The front inspection plate(plate on floor between pedals) on my 751 would be wet after using machine. I wasnt sure what was under the plate so i took it off to see only to find the chains and sprockets. Turns out the bolts were just loose. Figured since i had it off i would change the fluid, glad i did cause it had some water in the hyd oil. I cleaned the case out after draining the fluid, put new hyd fluid in and got a new gasket to reinstall the plate. Now when driving the machine i hear some noise coming from the chain drive area and feel a very slight vibration in the boom lift pedal. I figured it might just be some grit in the chains so i drove it up and down the driveway and it didnt go away. From what i've read theres nothing in there but the chains and sprockets, is this correct? I dont see what could be making a noise since all i did was drain the fluid and fill it back up. Are there some unsealed bearings in there? I hate to drain out the new fluid just to look in there cause its not easy to drain it out and catch it all. Any help or ideas wpuld be appreciated. Thanks

 

[Cyclone Ranger]

Are you missing any tools?
Unless you substaintially changed the oil level in the chain case is seems unlikely that fresh fluid would affect the sounds coming from it.
Rather than draining the new fluid from the bottom you might consider siphoning it out from the case cover. This might help avoid contamination and allow you to drain into a clean bucket of suitable volume. Once drained and wheels elevated you could inspect to see what if anything is creating the noise you are hearing.

 

[Tazza]

Are you missing any tools?
Unless you substaintially changed the oil level in the chain case is seems unlikely that fresh fluid would affect the sounds coming from it.
Rather than draining the new fluid from the bottom you might consider siphoning it out from the case cover. This might help avoid contamination and allow you to drain into a clean bucket of suitable volume. Once drained and wheels elevated you could inspect to see what if anything is creating the noise you are hearing.

The only other thing i can think of is the bolts, from memory there were longer and shorter ones. If the longer ones went in the wrong place, they may come in contact with the moving chain.
Just a thought.

 

[Ptjeep]

The only other thing i can think of is the bolts, from memory there were longer and shorter ones. If the longer ones went in the wrong place, they may come in contact with the moving chain.
Just a thought.

Matter of fact there are longer and shorter bolts. I didnt see any need for them except to help pull down the thick gasket. I might try to pull some out and stick the longer ones in the center holes. I dont think i left any tools inside, that could be disasterous!

 

[Ptjeep]

Matter of fact there are longer and shorter bolts. I didnt see any need for them except to help pull down the thick gasket. I might try to pull some out and stick the longer ones in the center holes. I dont think i left any tools inside, that could be disasterous!

Good call Tazza, one of the longer bolts was rubbing a chain. Swapped with a shorter one, easy fix.

 

[Tazza]

Good call Tazza, one of the longer bolts was rubbing a chain. Swapped with a shorter one, easy fix.

Excellent, glad it was an easy fix

 

[7LBSSMALLIE]

Excellent, glad it was an easy fix

buy the way lose the cork gasket. reinstall poly seal or always going to leak .the cork or styro wicks.out oil. you can get by with a qual silocone and it sets faster.