Any tricks to pulling the hydraulic pump 350c ??

[sullyt28]

The hydraulic shaft stripped out at the coupling I had it apart to change fan belt not sure what happened? I removed the 2 bolts each side pump and it won't budge. Don't want to hit the pump to hard for risk of damaging it. There isn't 2 bolts that run through the pump housing that have to be removed or dowel pins ? Any help with this would be appreciated.

[papa15]

If you can, look at john deere's catalog (jdpc.deere.com), enter your model number and then search for the hydraulic pump. it will show you how the pump is mounted. I just pulled the hydraulic pump on my 455E yesterday. After removing the two mounting bolts, had to "tap" the pump with a hammer and then use a screw driver to get the pump to come away from the mounting bracket. Once that was done, it just lifted out....then pulled the coupling out the front....

[sullyt28]

It shows the 2 bolts. I'm going to try and grind 2 slots to fit pry bar in to see if I can get it to budge that way. I've been hitting it pretty hard not much luck. Thanks for response.

[papa15]

My friend used my 3 lb sledge hammer to tap on both sides of the pump....once saw the pump break the bond to the mounting plate, was able to get the screw driver in.....it did take a while to get the pump to move though....

[papa15]

If it is the coupling, I was able to get an aftermarket one from Reliable Aftermarket Parts for around $45 with shipping included...about $10 less than other places I checked....

[sullyt28]

Got it off with some heat and a pry bar. The coupling stripped out at the pump pump shaft looks okay. I ordered a replacement from john deere ag for about $50 less than Nortrax. It's still $95 dollars. Hopefully button it back up and it holds together. Is it common for this to happen ? All the circlips were still intact.

[papa15]

Don't know anything about the frequency of failure but the coupling is the designed wear point....it should go first to protect the pump....or so I have been told....

[sullyt28]

Put the new coupling in and all is good. Your theory must be accurate. The coupling stripped out completely yet the hydraulic pump shaft didn't suffer any damage.