Auxiliary Foot Pedal No Detent

[V-Rod]

All was well with my Thomas 173 skidsteer, however the detent on the auxiliary pedal will not stay in the detent position, is this an issue with the hydraulic valve body that controls hydraulic pressure or a switch that's not activating correctly?

The bucket can be raised and lowered with out any issues but not the auxiliary pedal will not stay in the detent position. Has anyone had this issue?

 

[brdgbldr]

All was well with my Thomas 173 skidsteer, however the detent on the auxiliary pedal will not stay in the detent position, is this an issue with the hydraulic valve body that controls hydraulic pressure or a switch that's not activating correctly?

The bucket can be raised and lowered with out any issues but not the auxiliary pedal will not stay in the detent position. Has anyone had this issue?

I'm not familiar with that particular machine but normally the detent is in the control valve. All it is, is a couple of springs and ball bearings that when the pedal is pressed all the way the balls go into the groove/detent and hold the pedal there.

The springs and balls wear out or rust out and then the detent no longer works. The hardest part of replacing them is keeping the new ones in place without a special tool. There are videos online that show how it's done.

You can normally locate the valve you need to work on by tracing the pedal linkage to it.

 

[Sgtbass64]

All was well with my Thomas 173 skidsteer, however the detent on the auxiliary pedal will not stay in the detent position, is this an issue with the hydraulic valve body that controls hydraulic pressure or a switch that's not activating correctly?

The bucket can be raised and lowered with out any issues but not the auxiliary pedal will not stay in the detent position. Has anyone had this issue?

I don't have a answer for your question. But I have a question of my own. I have a M700 with the aux pedal. But I have no idea what it is used for. I'm working on the machine for friends of mine. And he doesn't know either. Just curious. Thanks.

 

[V-Rod]

Hi glad to help answer that! Hope it helps for what it worth.
So my auxiliary pedal is engaged by stepping on the toe (front part of pedal) semi hard and quick. It's like a rocker pedal. Once activated It supplies hydraulic pressure to a attachment/implement such as a grass shredder, auger, or a grapple. It has hydraulic hose couplers somewhere on your tractor. To release hydraulic pressure I press down on the heel side of the auxiliary pedal and the implement will stop. Hope this helps!

 

[V-Rod]

I'm not familiar with that particular machine but normally the detent is in the control valve. All it is, is a couple of springs and ball bearings that when the pedal is pressed all the way the balls go into the groove/detent and hold the pedal there.

The springs and balls wear out or rust out and then the detent no longer works. The hardest part of replacing them is keeping the new ones in place without a special tool. There are videos online that show how it's done.

You can normally locate the valve you need to work on by tracing the pedal linkage to it.

Thanks for the lead!
I'll see what I can find online. Hopefully the repair procedure is not so difficult.

 

[Sgtbass64]

Hi glad to help answer that! Hope it helps for what it worth.
So my auxiliary pedal is engaged by stepping on the toe (front part of pedal) semi hard and quick. It's like a rocker pedal. Once activated It supplies hydraulic pressure to a attachment/implement such as a grass shredder, auger, or a grapple. It has hydraulic hose couplers somewhere on your tractor. To release hydraulic pressure I press down on the heel side of the auxiliary pedal and the implement will stop. Hope this helps!

Thank you. Very much.

 

[V-Rod]

I'm not familiar with that particular machine but normally the detent is in the control valve. All it is, is a couple of springs and ball bearings that when the pedal is pressed all the way the balls go into the groove/detent and hold the pedal there.

The springs and balls wear out or rust out and then the detent no longer works. The hardest part of replacing them is keeping the new ones in place without a special tool. There are videos online that show how it's done.

You can normally locate the valve you need to work on by tracing the pedal linkage to it.

brdgbldr I have found a link to a video mentioning the springs and detent ball bearings. This service does not look too complicated. Thank you for the lead, much appreciated, brdgbldr and person filming the vid. Hope this helps others too! See vid below.

 

[ward]

I have seen machines that don't have attachments or are just operating a cylinder and the detent automatically clicks out to protect the bypass valve, units like a mower or backhoe has the fluid flowing through i would guess that backhoes are set about 200 psi lower to keep the auxiliary from kicking out.

 

[ward]

I have seen machines that don't have attachments or are just operating a cylinder and the detent automatically clicks out to protect the bypass valve, units like a mower or backhoe has the fluid flowing through i would guess that backhoes are set about 200 psi lower to keep the auxiliary from kicking out.

200 psi* lower than the auxiliary relife.