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Inching Pedal installed on D17 , Who has seen one

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=148632
Printed Date: 02 Sep 2025 at 7:50pm
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Topic: Inching Pedal installed on D17 , Who has seen one
Posted By: Macon Rounds
Subject: Inching Pedal installed on D17 , Who has seen one
Date Posted: 19 Mar 2018 at 9:48pm
Anyone have photos of an inching pedal installed on a D17 ?
Share please .  Thanks in advance !!!!
  


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The Allis "D" Series Tractors, Gravely Walk behind Tractors, Cowboy Action Shooting !!!!!!! And Checkmate



Replies:
Posted By: CAL(KS)
Date Posted: 20 Mar 2018 at 7:53am
I was of the understanding that inching pedals were used with hydraulic clutches,  how would an inching pedal work on a traditional clutch?

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Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20

Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15


Posted By: Brian G. NY
Date Posted: 20 Mar 2018 at 9:15am
Foot pedal on the PD clutch?.....just a wild guess!


Posted By: Macon Rounds
Date Posted: 20 Mar 2018 at 10:09am
Inching pedal attaches to left side of PD shaft and is strictly mechanical function using your left foot.
Not sure if this was ever a factory accessory or just creative farmer invention.   

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The Allis "D" Series Tractors, Gravely Walk behind Tractors, Cowboy Action Shooting !!!!!!! And Checkmate


Posted By: Allis dave
Date Posted: 20 Mar 2018 at 10:48am
Seems Like Doc theoreticcaly explain how to build one on here a few weeks ago


Posted By: Macon Rounds
Date Posted: 20 Mar 2018 at 7:06pm
Here is were it would be installed.
 


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The Allis "D" Series Tractors, Gravely Walk behind Tractors, Cowboy Action Shooting !!!!!!! And Checkmate


Posted By: JayIN
Date Posted: 20 Mar 2018 at 7:46pm
PleASE explain. Been around AC 63 years. Never heard of it. Always nice to learn something new!

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sometimes I walk out to my shop and look around and think "Who's the idiot that owns this place?"


Posted By: Nathan (SD)
Date Posted: 20 Mar 2018 at 8:26pm
I have seen a pedal on the left to run the F-R shuttle.


Posted By: Travis2766
Date Posted: 20 Mar 2018 at 8:27pm
I’ve always wondered what that stub shaft was for.

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190XT Series III, D17 Series IV, D15 Series II, All Crop 66 and a whole mess of equipment.


Posted By: Ken(MI)
Date Posted: 20 Mar 2018 at 9:23pm
A true inching pedal is incorporated into a torque converter drive and releases the brakes and engages the clutch in a timed motion which,  if everything is adjusted correctly, will prevent rolling in the opposite direction of desired travel, anyone with forklift experience knows exactly how this works and what a benefit it is, especially in rigging and spotting operations. A pedal on the PD shaft would only allow foot control of the clutch and not combine the releasing of the brakes, might be handy, but I'm not sure what for.


Posted By: MACK
Date Posted: 20 Mar 2018 at 9:34pm
I have a I600 fork lift with what I would call a inching pedal. You would not want it on a tractor or a fork lift.
It is a valve about like drag link steering, with a small cylinder hooked to PD LINKAGE WITH FOOT pedal going to valve.
I don't like it.       MACK


Posted By: Macon Rounds
Date Posted: 20 Mar 2018 at 9:40pm
Yea Mack, This hydraulic activated one was on my I600/D15. "Yea someone painted the tractor green"  This type completely engagesengages the power director in fwd or aft and was mostly used on industrial shuttle tractors and a similar set up was on reverse tractor fork lifts.
 
The inching pedal I am referring to only lets you slip the power director clutch when in situations you need to just inch the tractor, it will not fully engage the PD. 


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The Allis "D" Series Tractors, Gravely Walk behind Tractors, Cowboy Action Shooting !!!!!!! And Checkmate


Posted By: Macon Rounds
Date Posted: 20 Mar 2018 at 9:50pm

It would really be handy for inching backwards to hook up equipment. As its hard to reach the power director handle and see the hitch at the same time.

In addition my helpers "Wife and kids" are not as smooth with the foot clutch as one would like. Safe just not smooth. And having a smooth inching capability would make for a much more harmonious day around the farm.  Smile


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The Allis "D" Series Tractors, Gravely Walk behind Tractors, Cowboy Action Shooting !!!!!!! And Checkmate


Posted By: DrAllis
Date Posted: 21 Mar 2018 at 7:12am
The extra length of the P.D. shaft was for a left-hand control lever. Usually this was a Fwd-Rev "shuttle-shift". The foot pedal design was hydraulic and totally eliminated the left side hand lever.  I suppose you could rig up some sort of manual "inching" pedal, but you'd have to eliminate the neutral latch in order for it to work as you hoped for.


Posted By: Macon Rounds
Date Posted: 21 Mar 2018 at 9:52am
Dr Allis you explained it exactly as i understand it. However no need to eliminate the neutral latch. Just posion the leaver up out of the notch and a little foward when you need to use the inching feature.
I guess i am just gonna have to engineer one if i cant find a prototype to design off of.


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The Allis "D" Series Tractors, Gravely Walk behind Tractors, Cowboy Action Shooting !!!!!!! And Checkmate



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