jammer48
Member
My 4 wheel drive quit working while mowing with finish mower. Not sure when it happened or what happened. It seems to go into 4 wheel drive. I can see the shifter working. What do I do first to try and figure out whats wrong?
Look at your driveline coming out of the front differential. There is a cover held in place with hose clamps. Loosen the clamps and slide the cover back so you can see inside. Now, jack up only one wheel off the ground (leave one wheel in firm contact with the ground). With 4wd disengaged, turn the wheel that's in the air and you should see the shaft rotating where you pulled the cover back. If it does not, then you have a problem in the front differential. Put the 4wd lever to engage. Rotate the tire again. If you can rotate the tire and the shaft turns, then your problem is in the 4wd gearbox or inside the transmission shifting mechanism. If the tire will not rotate when you are in 4wd, then 4wd is engaging as it should.
Are you sure your lever and mechanism to shift into 4wd are working properly? Look at the lever where it enters the transmission and operate it into and out of 4wd while watching the shaft turn. If nothing is bent and the lever rotates the shaft into the transmission properly, then you have an internal problem in the transmission, driveline coupling, or the front differential and the test above will tell you the major assy that is failing.