Hydraulic oil change John Deere 6620 year 2005

[bcharolais]

Please could someone tell me how to do it as the book picture is not very good have removed drain plug behind drive prop for front axel and also one just behind front of pick up hitch. Book says there is one more which should then remove gauze and wash with full can not find it?Also do I drain black extra oil tank by chassis also?many thanks any help great fully received. ps tractor new to me not done it before. Thanks again.

 

[NZ Tech]

Theres one on the mfwd drop box... theres two under the puh 1/2" square drive. Then the suction screen is behind the plastic plug.. 22mm socket fits it.. located under the final drive on the lh rear. Cant really miss it as its the only plug under there. Only remove this screen once the Oil has been drained.

Good luck

 

[marcot]

And yes you do need to drain the extra oil tank.....

 

[bcharolais]

Thank you both one more question do I need to remove both of back drain screws as can only get at one without removing pickup hitch ? Many thanks again.

 

[Kevtherev]

Make sure you put the correct oil back in.
NOT hydraulic oil.
JD hyguard is best

 

[bcharolais]

Thanks everyone dropped puh down much easier all done now and topped back up with correct oil many thanks bcharolais.

 

[Timbo]

use a short length of hyd hose into 205 l drum into a spool valve and pump 90% out. Then start on the drain plugs. Much easier.

 

[mf290]

From the manual on a 6630 there is just 2 drain plugs and then one for the additional oil reserve? Is that correct, Thanks

 

[mf290]

From the manual on a 6630 there is just 2 drain plugs and then one for the additional oil reserve? Is that correct, Thanks

Bottom one to the side of the puh doesn’t come out... do I remove the two either side of the puh?

 

[carbonfibre farmer]

@Phil P

 

[mf290]

There were filings on the magnet of the screw for dropping the oil from the mfwd.
should I be worried or is that a normal find?

 

[marco]

if there are just a few its not a problem. was there alot?

 

[mf290]

if there are just a few its not a problem. was there alot?

3-4 pinchfulls I'd say

 

[Kevtherev]

Have the brakes been done recently?

 

[mf290]

Have the brakes been done recently?

No, it's only done 3500hrs. Probably better off get them done. It's hard convince the "bosses" but filings in the hydraulics might just frighten them into it.

 

[Karliboy]

Ignore bit of plastic and hay but this is looking a bit black from a 6630p Deere to me. It’s not mine either. I’m Thinking brakes gone ?

 

[NZ Tech]

How many hours has the machine done?.

 

[Will 1594]

The suction screen is on the long pipe what has a curve on it and 3 bolts on the triangular flange ,13/14 mm spanner
then pull it outbof whol , and you will see a strainer in there , pull it out ,have fun can be pig to pull out , maybe get another by time you have mullered it trying to get it out , make sure very thing clean when goes back as straight into the heart of tractor ,

 

[Karliboy]

How many hours has the machine done?.

7800

 

[solo]

If the brakes are delaminating the suction screen will have bits in it as per Will 1594 post above.