Discussion:
Mast controls locked

My up/down and tilt controls are locked up and I have the mast light and exclamation mark light is flashing? Can someone help?
  • Posted 10 Jan 2017 06:38
  • By seth_n
  • joined 10 Jan'17 - 1 message
  • Missouri, United States
Showing items 1 - 4 of 4 results.
Did you ever figure out this problem?
  • Posted 12 Mar 2021 10:53
  • By Matt_Cade
  • joined 12 Mar'21 - 9 messages
  • Tennessee, United States
Did you ever figure out this problem?
  • Posted 12 Mar 2021 10:53
  • By Matt_Cade
  • joined 12 Mar'21 - 9 messages
  • Tennessee, United States
What is your full model and serial number? It sounds like the Operator Presence System is not sensing a operator in the seat. Like Prentice said - check seat switch and seat sw wiring. How many times is the ! light flashing? This is a code to point you in the right direction.
  • Posted 19 Jan 2017 23:12
  • By Jeff
  • joined 8 Feb'07 - 61 messages
  • Georgia, United States
There is nothing worse than a sharp image of a fuzzy concept.
-Ansel Adams
We worked on a Komatsu Diesel in the summer( Might be the same??) they have a solenoid lock on the bottom of the control valve. Check Seat switch and and voltage to solenoid. I think you can physically pull out ( Watch out for the mast dropping...Safety First :) )
  • Posted 10 Jan 2017 07:02
  • By Prentice
  • joined 25 Jun'08 - 600 messages
  • Ontario, Canada

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Fact of the week
At the opening ceremony of the Sydney Harbour Bridge in 1932, marching bands were instructed to walk out of step as they crossed the bridge. This unusual directive was given as a precaution due to concerns about the bridge's structural integrity during its early use.