TYM 233 Gauges and Tach going out

[TYMinColton]

I appreciate you trying. Even a a few photos from a phone of the original full-size schematic would be better than what I have. Ironically, I had an issue with my fuel pump yesterday, and after exploring a few hunches (e.g. no 12V to the fuel pump), I discovered that I had blown the 20A Eng stop/PTO fuse. The tractor "mostly" won't run with this fuse out. However, you can slightly push in the brake solenoid and hold the ignition in the start position and you can still keep the engine running. Probably not a good idea, but got me to within range of my shop and tools. Thankfully I had just filled the tank with fuel, so I had enough gravity feed to get it started. A proper wiring diagram would have made tracing wiring soooo much easier!

If I can figure out a way, I'll work on it. By the way does yours by any chance have the rear hydraulics. Would like to see the arrangement of how its plumbed. Dealer had a NOS kit but wanted $880 for it.

 

[TYMinColton]

If I can figure out a way, I'll work on it. By the way does yours by any chance have the rear hydraulics. Would like to see the arrangement of how its plumbed. Dealer had a NOS kit but wanted $880 for it.

Sorry. No further info on the rear hydraulics. I assume you mean the accessory hydro pump that would be used to run a backhoe? For the cost of plumbing and a backhoe I figure I could rent an awful to of backhoe time. . . .

You ever figure out what was up with your flaky instrument panel? When I had mine apart yesterday I definitely had some corrosion around the connectors. There are a couple of 20 pin connectors that come of the main harness and connect to the dash. You might try wiggling the connector and see if you can recreate what you're seeing. Sounds like you have loose wiring or corrosion.

 

[Bkjohns]

I would be looking into the ignition switch as a cause for the intermittent instruments.

 

[Walter L]

It just recently started with the gauges and tach not working. Sometimes they're fine others dead. It's from start up, they either work or they don't for as long as the tractor is running. Was thinking maybe a ground problem. Tractor is about 12 years old.

I would suspect a relay.

 

[kb12610]

I only have a digital copy of the owners manual. Adequate for most repairs, but not for the wiring diagram. Would you possibly be willing to make available a higher resolution photo/scan of the hard copy of the wiring diagram? I posted a thread about this and like 100 folks viewed the post, but no one responded. I'm willing to bet that a lot of us would benefit from the high res diagram.

I posted a phone picture of the copy I have in a new thread.

 

[kb12610]

It just recently started with the gauges and tach not working. Sometimes they're fine others dead. It's from start up, they either work or they don't for as long as the tractor is running. Was thinking maybe a ground problem. Tractor is about 12 years old.

These have worked the last few times out so I have let it ride. Mow again tomorrow so will find out then if was just fluke.