Greetings
On a 1994 VF4 I had the dreaded high gear sticky solenoid but only intermittently (my air was not dry enough). I started the machine with a power up restart, it did not shift into high gear and a 117 High gear spindle fault alarm was generated. I continued to start the machine using zero single axis and started the spindle at 200 RPM (this has helped in the past...maybe enough vibration to get the valves moving). With the spindle running for about 3 mins., a loud grinding noise was heard and the spindle was off within 2 seconds. I have since cleaned up my air and got the valves going again.
My problem/question is, now when the spindle is stopped while in high gear, a significant rubbing noise is present. Haas said they do not service motors or transmission, only replace so they didn't help. Does anyone have any thoughts or experience or do I keep running it until the problem makes itself
obvious...and expensive
Thanks
Fastfrank