Calling D17 hydraulic lift experts (Series 1)

To get the lift to actually work, I have to tighten the transport valve knob. When I set the lift lever on the steering wheel column, nothing will happen unless I slowly tighten the transport valve knob. The lift will either go up or down but will not hold a position without a constant adjustment on the lift lever or the transport valve. (I assume this might be a holding valve problem.) This makes for very difficult (or impossible) box-blading or grading work. Another piece of info--the belly pump makes a noticeable ticking or tapping noise once I start using the lift. When the lift goes all the way up, the
Traction Booster gauge approaches the "pegged" position and the needle fluctuates rapidly up and down.

Within our family we lost three homes to the hurricane and I'm the only one that owns a tractor so the tractor (and me the operator) are in high demand to perform clean-up and salvage operations. I'd like to get this rig working properly ASAP.

Thanks to all replies.

The noises you hear are perfectly normal. When you have control all the way up in the locked position it will tick constantly but nothing to worry about. As for the transport valve if you don"t need it get rid of it. Take the supply line that comes out of the top of the torque tube and run it direct to an external remote if there is one. If not cap it off.

I'm not experienced with the transport valve. My D-17 has the oil distribution housing which does permit lift and hold.

I'll send you what I have if you send me an email. However, I second Hurst's suggestion to look for more information.

The ticking sound is normal with the piston pump.

Good luck.

Hurst