John Deere hydraulic pump tips

What I was able to share, that I thought is important .

[Thagen]

Good video, the "Washer A and Washer B" or the Black "square packing" and the white "backup washer" are the primary sealing device. The external seal is basically a dirt seal. As you mentioned, anything that gets past washer a and washer b goes back to the transmission. If washer a and washer b get wore out they will leak and overcome the external dirt seal. The dirt seal is not made to hold the full pressure inside the pump. Something else to check is the drain line that goes back to the transmission sump can sometimes get plugged causing the dirt seal to fail as a small amount of leakage is expected past washer a and washer b. Also I noticed your dime valves showed quite a bit of wear, the ones sitting on the rear plate. Those are cheap and easy to replace. Like you said, many times the main bearings and races do not need to be replaced. Good work, keep it up. Also good english, easy to understand. God Bless

[guanocoterepaima]

Very dedicated man out there. Good job

[guanocoterepaima]

Are you sure Vaseline is fine to use? Yes is grease and lubricate but, might burn at a lower temperature than the grease for the pump, at least that pumps doesn't run too hot. IDK mho

[cgittoes]

I loved the video as I am about to tackle a leaky pump myself. I am curious how did you press off the bearings with that cam in the way?

[arnaldoravicini]

ME GUSTARIA TENER IDEA EN DONDE COMPRAR LOS RECAMBIOS DE ESA BOMBA EN EEUU Y QUE PUEDAN MANDAR A ARGENTINA GRACIAS

[OnTheRoadAgain-S]

How does the pressure limiting system keep the pistons off the cam? Does the pressure compensating (relief) valve feed oil pressure to the pump case?

[pierrelombaard]

Do not spin a bearing like that
If you want to inspect the bearing thek the outer ring
If it have a dul and not shiny surface or is steaky replace it

[Laurel-Crowned]

Great vid! What tractor is this out of? I just bought a 300b and can hear a bad bearing sound (growl) from the pump area. What kind of noise was yours making?

[MSCrappieSlayer]

Great video. Did the new bearings fix the noise issue?

[louisshubert]

Was wondering what model machine it came off of. I have a slightly different hose location set up and am trying to figure out a different problem. But will be doing going through it the same as you are. Did your noise go away or get better when you used a hydraulic function?

[solartechnik]

Witam czy pompa bez elektrozaworu, będzie działać .bo mam problem z dokupieniem w Polsce. Tylko w AMERYCE. AT37169

[grgacvarak]

ABOUT THAT SOUND ITS VERY HARD TO HEAR DIFFERENT BECAUSE YOUR NOISE INSIDE YOUR ROOM ..YOU HAVE SOMETHING LIKE FAN INSIDE ROOM...