Gary Fowler
Super Star Member
- Joined
- Jun 23, 2008
- Messages
- 11,917
- Location
- Bismarck Arkansas
- Tractor
- 2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010
I posted this on Oils and lubricants but am getting no response so I am going to copy it here also. Anyone that can confirm type/ grade of oil manufacturer recommends also appreciated. Dealer said he used AW 32 but I am now having trouble as described below and am not sure this is the right oil.
As posted on Oils and Lubricants:
I have a Yanmar 4220D and bought all the operations manuals with it, but all the parts etc are in Japanese. Can anyone tell me the type of hydraulic oil it takes. Local parts houses either have AW 32 or JD303 equivalent. I have replaced it with AW 32 but have got to thinking that since Yanmar made some tractors for John Deere, maybe the JD hydraulic oil would more nearly match.
The filter screen stopped up on it with green slime and black jelly looking material and it took 3 oil changes to get it all flushed out, but now the hydraulics are jerky and slow and it takes a few minutes of circulation before it will lift the FEL. I have been advised by one of the Net members that the pump may be bad now. It was working good till the screen fouled,and I may have damaged it by letting it run with the screen stopped up. IT took me a while to find the screen to clean it. While the screen was stopped up, nothing worked and it would not move as the hydraulic clutch would also not engage.
ANY ADVICE on this. IF new Pump is needed, Where can I find a NEW one.
As posted on Oils and Lubricants:
I have a Yanmar 4220D and bought all the operations manuals with it, but all the parts etc are in Japanese. Can anyone tell me the type of hydraulic oil it takes. Local parts houses either have AW 32 or JD303 equivalent. I have replaced it with AW 32 but have got to thinking that since Yanmar made some tractors for John Deere, maybe the JD hydraulic oil would more nearly match.
The filter screen stopped up on it with green slime and black jelly looking material and it took 3 oil changes to get it all flushed out, but now the hydraulics are jerky and slow and it takes a few minutes of circulation before it will lift the FEL. I have been advised by one of the Net members that the pump may be bad now. It was working good till the screen fouled,and I may have damaged it by letting it run with the screen stopped up. IT took me a while to find the screen to clean it. While the screen was stopped up, nothing worked and it would not move as the hydraulic clutch would also not engage.
ANY ADVICE on this. IF new Pump is needed, Where can I find a NEW one.
