TN60A 4WD not engaging

   / TN60A 4WD not engaging #1  

klingen

New member
Joined
Oct 19, 2004
Messages
15
Tractor
NH TN60
4WD on my 2008 TN60A stopped working while I was pushing the bucket into a dirt pile. The front tires shuddered a little bit and have not engaged properly since.
I crawled underneath and discovered that the arm and fork where the linkage goes through the tranny wall were not operating freely. I have freed that up mostly I think but don't understand how that lever arm and fork are supposed to operate and the 4WD sounds like it is almost or trying to engage (sounds/feels like a gear not quite fully engaged).

Anybody know how the lever and fork are supposed to interoperate? The lever (with spring arm) attached to the control rod by the seat seems to move at full travel but the fork that moves separately behind it only hits the stop on the way up and not on the way down... IOW when you push the lever by the seat down to disengage 4WD the arm moves the fork fully against the stop, but when you pull the lever up to engage 4WD the fork does not move all the way against the stop.

I am trying not to break it but prying on the fork with a prybar will not move it beyond its center point. I am not sure if the fork needs to move fully against the stop for 4WD engagement and since it moves partway it doesn't seem to be frozen.

There is nothing more useless than a 4WD tractor without the 4WD... OK, OK, half useless.

aTdHvAaNnKcSe!
klingen
 
   / TN60A 4WD not engaging #2  
I have a TN95A with a 4WD problem also but mine won't disengage. I have not been able to figure it out so I now am waiting for a service manual to be delivered.
$$$$ over $400 through Messicks.

Good luck with yours.
 

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