Tachometer stopped working on Task Master

oscarman · May 24, 2005

I have a Task Master 438D (Dong Feng) the Tachometer suddently stopped working. I did not see a cable going to the engine, however, there is a wire that looks like it goes to a sensor into the flywheel. Can this be replaced? Any ideas of where this part can be purchased? How easy is it to install a new one?

Greenacre · May 25, 2005

Hello Mark

Pls contact Taskmaster in Creswell Oregon ask for the parts dept Im sure they will be happy to help to get the part you need.
If could be the rotation speed sensor or could be the tach itself in the dash cluster either way they can help Im sure.

Mazama Products
Task Master Tractor Division
83371 Melton Rd N, Creswell OR 97426
541-895-2959, Fax: 541-895-2756
toll free 1-877- 223-2605

Hope this helps, enjoy your TM Tractor !

greg_g · May 25, 2005

</font><font color="blue" class="small">( I How easy is it to install a new one? )</font>
DF owners who have done what you're asking are possibly going to be in short supply. So I'm composing this response with the assumption that your DF tach sensor operates the same as those on my KAMA and two previous Jinmas.

This procedure is done with the engine not running. Once the conductor wire is disconnected from the sensor, there should be a lock nut on the sensor threads. Loosen it, then remove the sensor from the bell housing. Clean the opening if necessary. Screw in the replacement sensor till you feel the tip touch the flywheel. Back it out about 3/4 turn. Pull the compression release, and - with a socket wrench on the timing pulley - slowly rotate the crankshaft a full 360 degrees. When you've confirmed that the flywheel teeth will not strike the new sensor, tighten the lock nut and connect the sensor wire. Start engine, check tach for proper operation. Some fine tuning of sensor tip distance from flywheel teeth may be necessary if the tach action is erratic.

//greg//

oscarman · May 25, 2005

Thanks Greg and Greenacre. I will give it a try...

bill72562 · Apr 28, 2006

I have 2 taskmaster TM432 tractors. I can tell you just about anything about them since almost everything has gone wrong with them.
The tach stopped because the sensor failed. I have had front drive axles break (the wheel and hub falls off while driving), hydraulic lines break. on and on.
Now i have a cracked rear differential housing. A new one is about $350 from the importer in Creswell. Of course they want $3000 to install it.

By the way, my tractor is for sale.
bschmitz@npi-inc.com