Yesterday sucked, pumped about 110yds of a 150yd wall moved the boom to other side of the wall hit pump forward heard a loud metallic bang. Lost all my hydraulics had nothing, cleaned out hopper,barrels,blew out boom with air had to disconnect hyd lines to move stube by hand. Everything got cleaned out even with 2% in the Crete. Anybody have any thought on what happened I'm thinking my PTO took a sh#t anybody had problems like this?

is that with perfects pump? i ran it for a little bit before you!

Yes grass hopper, you the guy from VA?

yea. that sucks glad you got everything clean

sounds like your stabel box or hydraulic pumps took a crap.

Does the pump still go in drive ?

We had a pump that had the pumps went out with the boom straight up. Had to hook another truck up to it to fold it back up

goes into gear driveshaft spins but nothing happening past PTO truck still set up on job in A frame

Actually.. hold up.

I deleted my comments because I might have been wrong.

What might have happened is your PTO only partially engaged or hung up. If you pull the cover off the stabel box, and your shift fork IS engaged, there is a brass actuator fork at the bottom of the stabel box that is probably trashed.

How that gets messed up, is people will engage the PTO and not wait for it to fully engage so it wears out the brass little by little, and eventually it just clunks and doesnt work.

there are two air lines hooked on the front driverside RH side of the box. There is an aluminum plunger with a rubber o-ring connected on the box as well. This actuates the pump gear. With the truck off, try to move it one way or the other. If theres something broke in there you will either hear clanking, or it will be seized (Partially engaged). If it was partially engaged, it could have sheered off the shift fork. But you should be able to manually engage it to possibly get the pumps to engage, or if that fails, at least engage to get the truck driveable

the Actuator shaft is usually held in place by a cover. They normally have 3 or 4 bolts. Once you remove the bolts and pop the cover off, it will expose the shaft assembly. Forgot to add that.

Hope that helps.
By the way, I did not know any of this information. My father told me when I was talking with him about your issue.

Thanks dude I'm gonna go out to the job site Monday and see what I can do if anything to at least get it folded and drive it to Cole & Lambert in Maryland to get it fixed. If anybody else has any ideas I'd appreciate it thank you in advance

Yeah there pretty lucky a 46m happen to be cleaning out 5 mins down the street from the job site. Man that must have been a great company that came and rescued them after they bought there own pump and tried to take some customers from them. Hahahaha

Yes block that company is terrific. Even the owner came out and made sure everything went well when that beautiful 46m pulled up to finish my job. They are a great group of guys. Glad to see the owner being the bigger person and not taking it out on the operator. 

I Know The operator of the 46 meter that went for the rescue. He's a great guy and takes pride on his pump. 

Mudcup, what did you figure out buddy ? Find what the problem was ??

Horrible weather here today. I got a compayn coming out on thursday with me gonna make up the hyd lines and were gonna use our crane hydros to hook to the pump so I can fold her up

why not just throw your winter coveralls on, some gloves, a face mask, and climb under the pump and pull that cover off. It will be really easy to tell what the problem is. You might not even need to hook anything up to the pumps if you can get that plunger to engage

You ain't making $$$ if your pumps stuck on a job!!

We're closed all this week and most of next anyway

Well, good luck with the pump and hope you get it all figured out

You don't know all the issues the company that's gonna make up the hoses on can't be there till Thursday anyway and it's 2hrs from my house so if its not what you said it would be a wasted trip it has to go to cole & lambert anyway and the mech is in Wisconsin till mon of next week. Just don't be one of those guys that judge other operators. This is exactly why I don't post on here. Thanks for help though. 

I wasn't trying to judge you really. I should have just not posted anything because I just sounded like a dick and im sorry. I just know that if my pump was stuck on-location, no matter where it was or what day it was I would grab my truck / tools and go out to the job and try to remedy the problem (on my own time).

Who knows, you might be able to get away with taking that cover off that holds the plunger in place and it might be covered in oil and seized the plunger in place. With a swift movement of your hand, you could tell

1. It's faulty inside of the box. There is noise going on
2. It engaged the shift fork.

If it engages the shift fork, you MAY be able to get the pumps to work. Fold the pump up then shut er down and go the opposite direction with the plunger. See if the drive shafts work.

Like I said the cover that has the air lines attached to it is literally held on by two air lines, and 3-4 bolts. When you pull the cover off, it exposes the plunger assembly.

heres a basic diagram:

Air supplied to one side of the PTO switch makes plunger move one way, PTO switch other direction reverses the air supply.

These like to get coated with oil, or get worn out (loose the seal) so they will stop working.

Could Possibly be a simple fix

make sure you got 90 psi on your pto switch... sometime it's the air pressure regulator for pto switch