NH TS100 4WD Issue

[Sehnsucht]

Hello all,

I need some help from the community especially if you own a TS100/110 series or used them before.

I have the 16 speed transmission version with the cab.

Recently, i noticed that when i toggle the 4WD button ON the dash light does not illuminate. So i did some mechanical troubleshooting by raising the front and back and determined that the system is actually working but the light does not work.

However there is also some weird behavior with the light for the diff lock. The diff-lock switch is a 3 position. Lower position (AUTO), middle position (neutral/off) and upper position (Manual ON). When the switch is in the middle position with the brake applied the diff-lock light illuminates on the dash. With the switch in the ON manual mode the light does not illuminate. Also there is no good way for me to actually check whether the diff lock is working since the ground is not wet or muddy currently.

I believe the two dashboard light issues might be related to some type of electrical system. IF anyone has any idea where to begin troubleshooting please let me know.

Thank you all for your time

 

[Mike1955]

Schnscucht welcome. You have found the ideal starting place, just by starting. I suggest you determine if the differential is engaging and the light is acting accordingly. Always use these five senses the Good Lord gave us before doing a lot of unnecessary labor. Good luck and enjoy this forum

 

[Sehnsucht]

Thank you.

For anyone who has this issue and is interested. I opened the dash cluster ( Very easy), and found that the bulb had indeed burned. So that's an easy fix, but i am having issue sourcing such parts.. Looks like a good option is to install LED bulbs..


I am still looking for some answers on my Differential lock behavior. Asking for anyone who has a similar tractor to turn the diff lock manually ON and see if the light comes on right away or does the diff lock light only come on after the diff lock is engaged. For my case the diff lock light only comes on when the system is 'NEUTRAL' and i press the brakes. I need to know if this is normal behavior.