Hello,
I have recently purchased an M120 powershift. I don't know any of the prior history. The hour meter is at 2,450 and appears to be original. The tractor has been finicky on shifting since purchased. The first caution that was thrown was (c) with the 3 beeps once the clutch was released. Once the tractor idled for around 20 minutes the issue seemed to resolve itself. I put 20hrs on issue free running a corn chopper. Now however the neutral light won't turn on. Meaning no shifting is able to take place and the gear indicator doesn't give any reading. I have traced all wires. Checked Ohms. Voltage is appropriate for all the tests per the manual. I had the voltage regulator/alternator tested and new components put in. When the key is cycled occasionally the neutral light will randomly come on and tractor will perform appropriately. The issue seems to be temperature dependent. If I slowly warm the powershift control unit the neutral light will start to flicker and then come on. Sometimes it doesn't and then if I come back 20 minutes later it will for one cycle of the ignition.
I have around 30hrs of trouble shooting into it. Has anyone heard of the powershift control unit failing? Does anyone have test units for verifying a malfunction? Part number is 3F250-78502. Tractor serial 50269.
When transmission neutral light is on I am able to go through all function pages and all checks pass per the manual.
Any help or thoughts would be greatly appreciated. I just want to make sure I'm not missing something simple before ordering a $1200 computer. Thank you in advance.
I have recently purchased an M120 powershift. I don't know any of the prior history. The hour meter is at 2,450 and appears to be original. The tractor has been finicky on shifting since purchased. The first caution that was thrown was (c) with the 3 beeps once the clutch was released. Once the tractor idled for around 20 minutes the issue seemed to resolve itself. I put 20hrs on issue free running a corn chopper. Now however the neutral light won't turn on. Meaning no shifting is able to take place and the gear indicator doesn't give any reading. I have traced all wires. Checked Ohms. Voltage is appropriate for all the tests per the manual. I had the voltage regulator/alternator tested and new components put in. When the key is cycled occasionally the neutral light will randomly come on and tractor will perform appropriately. The issue seems to be temperature dependent. If I slowly warm the powershift control unit the neutral light will start to flicker and then come on. Sometimes it doesn't and then if I come back 20 minutes later it will for one cycle of the ignition.
I have around 30hrs of trouble shooting into it. Has anyone heard of the powershift control unit failing? Does anyone have test units for verifying a malfunction? Part number is 3F250-78502. Tractor serial 50269.
When transmission neutral light is on I am able to go through all function pages and all checks pass per the manual.
Any help or thoughts would be greatly appreciated. I just want to make sure I'm not missing something simple before ordering a $1200 computer. Thank you in advance.