how to drain hyd fluid from BX42 chipper?

[woodchuckcanuck]

I picked up this yesterday. First time owning one, and still a newbie with anything hydraulic. I had the seller run the chipper first and it performed ok. But I noticed the fluid dripping out of his remotes when he disconnected was a muddy brown/coffee and cream sort of color. So I am guessing there's water in it? I quick call to my local dealer says I should drain it and its as simply as pushing the pin on one of the hoses. That simple? I'm thinking that all of those gear housings would want to drain out too?

What's the best way to tackle this as a DIY? Thanks for any help.

 

[J_J]

I picked up this yesterday. First time owning one, and still a newbie with anything hydraulic. I had the seller run the chipper first and it performed ok. But I noticed the fluid dripping out of his remotes when he disconnected was a muddy brown/coffee and cream sort of color. So I am guessing there's water in it? I quick call to my local dealer says I should drain it and its as simply as pushing the pin on one of the hoses. That simple? I'm thinking that all of those gear housings would want to drain out too?

What's the best way to tackle this as a DIY? Thanks for any help.

I would take the fitting/QD off the return hose and place in a bucket and connect the pressure up and run the chipper for about 10 or 15 secs.

When the fluid looks the same as in your tractor, should be good enough.

Replenish the fluid in your tractor.

 

[woodchuckcanuck]

That's a good idea. Now, the question is, which is the return hose?

 

[J_J]

That's a good idea. Now, the question is, which is the return hose?

Ports on motors are usually the same because they run both fwd and rev, same pressure.

You could look up the data for the hyd motor if it is available.

Did you get a parts manual with the chipper? Could download the manual.

 

[gf5205]

Ports on motors are usually the same because they run both fwd and rev, same pressure.

You could look up the data for the hyd motor if it is available.

Did you get a parts manual with the chipper? Could download the manual.

Just confirming what JJ said. The hydraulic feed motor on my BX62 runs in either direction so it doesn't matter which hose you hook up and which goes in the bucket.
Greg

 

[woodchuckcanuck]

I guess I'll have to download the manual from somewhere. I don't know which motor is the hyd motor. :confused2:

 

[Zebrafive]

In the bottom of your picture there is a hydraulic motor to run the toothed cylinder. I can tell what else the hoses go to from the angle of your pictures.

It's possible you have another hydraulic motor on roller higher up, just can't tell from the pictures, wrong angle.

 

[gf5205]

I guess I'll have to download the manual from somewhere. I don't know which motor is the hyd motor. :confused2:

You don't need to know. There are only two hoses. To flush, hook one up and take the end off of the other. I think you're going to want to have someone holding the hose in the bucket because it is not a low pressure return line but a high pressure line. Have the tractor at low idle.
Greg

 

[J_J]

After fluid has gone through a hyd motor there is no resistance, and therefore no or very little pressure.

Are the hyd motors in series or parallel.

Anyway, just add enough fluid to rotate the hyd motors.

If they are 3 cu in hyd motors, then it will take about 3 cu in of fluid to rotate the motor one revolution.

 

[tractchores]

I guess I'll have to download the manual from somewhere. I don't know which motor is the hyd motor. :confused2:

Wallenstein posts the manual online. You can find them here: Parts Books, Manuals & Instructions - Wallenstein I believe what you have there is a BX42R (the R denotes the hydraulic feed).

 

[woodchuckcanuck]

I've DL'd the manuals. Thanks for all the help guys. I'll let you know how I make out with it. Some other pics.

 

[Ductape]

I know I'm just repeating what has already been said, but it won't matter what QD you remove to flush it out. However, when you are done it will matter which hose is 'in' or 'out'. When running the chipper, you will want to make sure that the safety bar is back toward you when the feed rollers are pulling brush into the chipper. That way should you get snagged on a branch, smacking the safety bar will cause the rollers to reverse.

 

[woodchuckcanuck]

I ... That way should you get snagged on a branch, smacking the safety bar will cause the rollers to reverse.

That's a good point. The current setup the previous owner has, is to bungee the handle away from the operator so that the infeed rollers are moving as soon the pto kicks in gear.


On a side note, I notice in the flywheel that there is a slot for what I assume would be the twig breaker. But there's no twig breaker in/on the machine (part#6 in the attached pic) I had asked the seller about it, but he wasn't even aware of what the slot was for.

 

[gf5205]

Ports on motors are usually the same because they run both fwd and rev, same pressure.

Thanks for the correction!
Greg

 

[woodchuckcanuck]

Ok. Not having much success here. I've done a shot 1 min youtube video. Maybe someone can look over there and maybe the vid can provide something I missed in my earlier comments.

DIYer needs help - How to drain fluids from Wallenstein BX42R wood chipper - YouTube

Jim

 

[J_J]

I have to ask, did you activate the lever for the remote hyd in order to feed fluid to that valve with the lever , which is a speed control.

 

[woodchuckcanuck]

Umm, just figured out why there was no flow. Dummy me, forget to engage the rear remotes :confused2:


J_J... looks like we posted at the same time.

 

[J_J]

I believe that other valve is an emergency shut off. Make sure the emergency shut off is disengaged.

 

[woodchuckcanuck]

Ok, got it to work. I bled out what looks like 3, maybe 4 quarts. The fluid coming out looked ok at 3 so I gave it another for good measure.

I checked the bubble on the rear axel and there's no sign of a drop. That's my next to-do. Prior to hooking up the chipper I got the tractor on level ground and checked the bubble. But I can't tell if its too full or too low. I remember seeing what it looked like at delivery.

Anyway, ran a couple sticks through. Running ok.

One thing to note. If you looked at the video, I had the hyd line running from the lower rear remote to the cylinder that controls the feeder on my attempt to get things to work. That didn't work, so moved that line to the upper rear remote. Works ok now. So at least for this tractor, the lines are not interchangable.