John Deere 410B - no forward movement

Greasemonky

New User
Hello everyone.
I have a john deere backhoe model 410B. Will not go forward. Reverse works fine and all other hydraulics work fine. Just won't move forward. Found a blown gasket on reverser selector valve but did not fix problem. Seems like a pressure loss thing. I can push clutch in and let out slowly and about 1/2 way up it starts to move and jerk slightly like it wants to go , but let out clutch all the way and it just gives up. Keep in mind reverse is fine , so I don't think it's a linkage adjustment problem.
Has anyone had this problem , or some knowledge on this model of tractor ? Or does anyone have a link to somewhere I could find some diagrams on the reverser/trans hydraulics ?
Really don't wanna start taking stuff apart (splitting) without knowing how this thing works. Especially if it may be a simple fix , such as something in the reverser control valve. etc.
Any help or info would be greatly appreciated.
Thanks.
 
Thanks for the speedy reply and info. I have the control valve off at the moment but will get it back together today and see if I can get a pressure reading .... Question on the test port, I see two plugs that tap into two different ports on the control valve. Is one for forward and one for reverse ? ... Can't upload pics right now but working on it. Thanks again.
 
(quoted from post at 18:12:34 12/28/14) Thanks for the speedy reply and info. I have the control valve off at the moment but will get it back together today and see if I can get a pressure reading .... Question on the test port, I see two plugs that tap into two different ports on the control valve. Is one for forward and one for reverse ? ... Here's pic. Thanks again.
mvphoto14409.jpg
 
The Reverser control valve (contains clutch pedal valve and
direction selector valve) is located on left side of tractor behind
a "trim panel;" which has the service data decal on it. There
are "service ports" on this valve, one on the outlet of the pedal
valve called "port P". Pressure here should be on the order of
180 psi @ 1500 RPM with oil warm.
The 410B pressure regulating valve is located on the right side
of the reverser, but doesn't have any input linkage arm, to my
knowledge.
Question - Is this really a 410B? I don't recognize the valve
pictured in the following comment.
 
Hi Greasemonky; In case you are relying on email replies, I
addressed your question, but to a different participant. I am
having a similar problem with my 410B and have been in the
manuals, both test and repair, to dope it out. Still working on it
- cold wx. limits my activity. Yesterday I got the pressure
gauge on port P and started tractor. 0 psi for about 5 minutes,
then it slowly came up to 140 psi. Before I had a chance to
depress the clutch pedal, the engine quit. I suspect ice in the
fuel filter or line. Oh well!
 
Thanks branflakes for the reply. Yes it is in fact a 410B. I'm away from house right now but will get the serial # as soon as I can. To the best of my knowledge this model of tractor could be 1983-1986 if that helps. I've seen diagram pics of other 410B's containing electric shift solenoids but I'm assuming those are newer models. Which may be the one your describing with the reverser on left side. Mine does NOT have solenoids and the valve I pictured above was off of the right (passenger) side. Clutch linkage rod comes across from left side and links to the valve , shift rod (If remembering correctly ) comes straight down to valve on right side.
That's all I have time for now but will get back maybe tonight to update post. Thanks again.
 
(quoted from post at 14:25:54 02/19/15) Thanks branflakes for the reply. Yes it is in fact a 410B. I'm away from house right now but will get the serial # as soon as I can. To the best of my knowledge this model of tractor could be 1983-1986 if that helps. I've seen diagram pics of other 410B's containing electric shift solenoids but I'm assuming those are newer models. Which may be the one your describing with the reverser on left side. Mine does NOT have solenoids and the valve I pictured above was off of the right (passenger) side. Clutch linkage rod comes across from left side and links to the valve , shift rod (If remembering correctly ) comes straight down to valve on right side.
That's all I have time for now but will get back maybe tonight to update post. Thanks again.

OK: Looking in PC-1843, (June 85 rev.) Parts Catalog John Deere 410B Backhoe Loader; page 0360-six "Reversere Control Valve"
This valve is located on left side behind battery box. Clutch valve and direction control valve spools are mechanically connected to clutch and reveerser controls. On the right side of the reverser housing, the Reverser Pressure Regulating Valve (page 0360-8) attaches directly to the housing with no lines or hoses, all directly ported. Neither port pattern (from gasket diagram) matches the back side of the valve in your picture, and there is no mechanical input linkage on this valve. According to the PC, these valves cover the entire span of SNs for the 410B Tractor, Loader, Backhoe (up until Jun. 85).
Sorry about the emotacons - can't get rid if them
The components in the PC match the Torque Converter and Reverser Schematic provided in TM-1468 (Oct. 88), Technical Manual; Backhoe Loaders Operation and Tests; 410B, 410C, 510B & 510C, as well as in the repair manual, TM-1469 (Dec.-88) same series.

So, this is a puzzlement. You have a 410B that is different from my 410B (SN 708839) and different from JD's documentation for the 410B series of TLBs. I'll be interested in hearing what your S# is. It should be on a frame mounted tag inboard of the left front wheel.
 

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