Easy hydrostatic oil refresh/change

[bobdoo]

I have a John Deere X380. I was able to change out 400 cc of old hydrostatic oil, using a Mityvac.

On my transmission, there's a vent plug at the top, left, rear of the tranny. I pulled off the cover, then the plug, and was able to fit the small hose from the Mityvac, down the opening. I pulled out 400 cc of old oil, then used the Mityvac to force back in the same amount of new 20w-50 Pennzoil.

I did not need to bleed the hydro section of the pump, the tranny worked normal upon startup.

For those of us who don't have a drain plug, this method might work.

 

[Brian123]

I have a John Deere X380. I was able to change out 400 cc of old hydrostatic oil, using a Mityvac.

On my transmission, there's a vent plug at the top, left, rear of the tranny. I pulled off the cover, then the plug, and was able to fit the small hose from the Mityvac, down the opening. I pulled out 400 cc of old oil, then used the Mityvac to force back in the same amount of new 20w-50 Pennzoil.

I did not need to bleed the hydro section of the pump, the tranny worked normal upon startup.

For those of us who don't have a drain plug, this method might work.

I wish you lived in Maryland! Good Job.

 

[loneryder]

Is that a Z turn?

 

[Sequoiasoon]

I have a John Deere X380. I was able to change out 400 cc of old hydrostatic oil, using a Mityvac.

On my transmission, there's a vent plug at the top, left, rear of the tranny. I pulled off the cover, then the plug, and was able to fit the small hose from the Mityvac, down the opening. I pulled out 400 cc of old oil, then used the Mityvac to force back in the same amount of new 20w-50 Pennzoil.

I did not need to bleed the hydro section of the pump, the tranny worked normal upon startup.

For those of us who don't have a drain plug, this method might work.

I did that with my LTR166 which is just riding lawnmower.

The 20W-50 didn't seem to work the best for mine unless it was just so dirty and wearing some prior. End of season it was having loss of power. I swapped next season to the Tuff Torq 5W-50 and that has been working well (knock on wood). It is time to change it again though.

Who knows maybe next time we'll see what Dave has for HPL choices.

 

[RazorsEdge]

I've looked several times on the craftsman lawnmower and I cannot find any kind of plug. I've honestly given up.

 

[Drew7a]

I did that with my LTR166 which is just riding lawnmower.

The 20W-50 didn't seem to work the best for mine unless it was just so dirty and wearing some prior. End of season it was having loss of power. I swapped next season to the Tuff Torq 5W-50 and that has been working well (knock on wood). It is time to change it again though.

Who knows maybe next time we'll see what Dave has for HPL choices.

I am running the HPL 5w-50 Hydrostatic Oil in two tuff torq transmissions.

 

[burbguy82]

I have a John Deere X380. I was able to change out 400 cc of old hydrostatic oil, using a Mityvac.

On my transmission, there's a vent plug at the top, left, rear of the tranny. I pulled off the cover, then the plug, and was able to fit the small hose from the Mityvac, down the opening. I pulled out 400 cc of old oil, then used the Mityvac to force back in the same amount of new 20w-50 Pennzoil.

I did not need to bleed the hydro section of the pump, the tranny worked normal upon startup.

For those of us who don't have a drain plug, this method might work.

Might be a silly question, but is there a spot that you could drill and tap for a plug?

 

[cptbarkey]

Did the same method from the vent on my X354 with a manual extractor, worked good enough to repeat. I have seen later units have an exterior reservoir. There are a few YT videos that have also documented adding one. I think that is interesting but overkill.

 

[Lawnman23]

Might be a silly question, but is there a spot that you could drill and tap for a plug?

Actually, there is indeed.

 

[SHOZ]

Actually, there is indeed.

I need to do this to my Z320m. But I never get to see the video , nothing but commercials on Youtube now.

 

[Lawnman23]

I need to do this to my Z320m. But I never get to see the video , nothing but commercials on Youtube now.

Firefox with uBlock Origin will help with that

 

[SHOZ]

Firefox with uBlock Origin will help with that

This just started with Brave. Might need to see abut the Ublock.

I have uBlock installed.

 

[burbguy82]

Actually, there is indeed.

Great info. I dont not need this, but some may. If done correctly, this fights the "engineered obsolescence/failures"

If it was me, and I was going to keep the mower long term, might be worth trying. But Mityvac, does a great job also.

 

[Lawnman23]

This just started with Brave. Might need to see abut the Ublock.

I have uBlock installed.

May need to adjust your block lists, here is what I have and do not see YT ads on any video: