Quote:
Originally Posted by bluecrop  thanks all.
will be checking it this weekend. |
Just one more tip. . .
You don't have to have the tractor running to check the cruise control. First, release the parking brake (if it is ON), turn the key ON, press down on the
HST pedal, and select cruise with the switch. You should hear a click and cruise should engage to hold the
HST pedals where they are. Next, walk around the tractor and press both brake pedals at the same time. Cruise should cancel and the
HST pedals return to neutral. Now, release the brake pedals and flip the tab up so the brake pedals can be depressed individually. Set cruise as before and then press one brake pedal at a time. Cruise should hold until you press both pedals at once.
If this all works, there is nothing malfunctioning with cruise except maybe magnet air gap. While doing this test, you can check how firmly the
HST pedals are held while cruise is engaged. If they move easily, the magnet is weak or out of adjustment. If they hold firm, no adjustment is needed.
I have seen many relays over the years with intermittent contact problems, especially in inductive circuits like the electromagnet in the cruise control where arcing may occur. If you wish to replace the most expensive component first (The magnet as RickB suggests.) then you certainly may, but if I had an intermittent problem, I'd go for the relay possibly sticking or having dirty contacts. It's the lowest cost part of the two and most likely to have an intermittent problem in my opinion.