L295DT Tachometer stopped working

[gunslinger69]

The tachometer on my 1980 L295DT has stopped working. The arrow on the gauge does not move when the engine is operating. I checked the connection on the back of gauge and it appears to be secure. Any ideas on what could be causing it? I have been using the tractor for a year using the engine sound as my gauge.

 

[rbargeron]

There's a black flexible cable running from the back of the dash out to the right front corner of the engine. The core usually breaks a couple inches from where it goes into the engine. A new cable is part number 35300-34650 and costs about $30. Can order from tractorsmart.com or local dealer.

 

[jandpp]

Yep. It's probably the cable. The cable connects to front of the engine to the hour meter drive that spins in sync with the fuel camshaft. On my B8600, both the cable and the engine connection was broken. If you disconnect the cable from the dash meter, you should see the center of the cable spinning with the engine running. Probably won't be. If you then disconnect the other end of the cable from the engine, with a flashlight you should see a little flat thing spinning inside the engine connection when the engine is running. If the engine connection is spinning and the gauge side of the cable wasn't spinning in the first experiment, then you know the cable only is bad. If the engine side is not spinning, then you need to replace the hour meter drive on the engine. Cable could also be bad and you can test that by grabbing both sides with needle nose pliers and seeing if they are connected.

 

[Popster]

Do you know if he drawing for the hour meter drive in on the camshaft parts drawing?

 

[jandpp]

Do you know if he drawing for the hour meter drive in on the camshaft parts drawing?

No, it's on the gear case diagram, the engine front cover.

 

[gunslinger69]

Thanks everyone,
Now I have a plan and directions for something to focus on. This forum is a great resource.............Gunslinger

 

[Popster]

No, it's on the gear case diagram, the engine front cover.

Thank youi!

 

[Russ7127]

I have a 1977 Kubota L-185DT and the tachometer spins when the engine runs. The higher the RPM the faster it spins. Is this just the cable or the tachometer broken. Any thoughts?