richard brack

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  • richard brack
    richard brack on Q1 Is the PTO Sx (labeled on the schematic) on an...public

    Thanks for the information regarding the schematic anomalies.  With the corrected document, I first checked the location of all components then immediately looked at the seat switch.  With your information, I quickly diagnosed a connector problem.  Thanks again.

    My electronic engineering degree was earned in '73; I experimented in the 60s.  I miss the days of SAMS which rarely contained an error or omission.  At that time P, I, and E were usual abbreviations.  I started learning acronyms when I got an FCC license, like Xmitter.  In the 90s, I was lost for 6 months when I went to one of the big 3 LD telcos (Long distance telephone companies).  A sentence usually had 4 or more acronyms in it.  Like "The sonet ckt at the KCMO ATT GTE demarc is datt."  All words in the sentence are acronyms except: The, at, the, & is.  We we told to use Sx as SW / Sw was a direction.  I became recognized for writing Scopes of Work that contained no English or grammatical errors; this minimized mistakes in the field.

    Again, thanks for your input, gotta go mow now.

  • richard brack
    richard brack on Q1 Is the PTO Sx (labeled on the schematic) on an...public

    Thank you for your speedy and knowledgeable reply.

    Mea culpa, Sx is used frequently for "switch" in the electronics industry; I should have spelled it out.

    My problem is that I started the mower, had mowed about 20', and the mower died.  It did not die like it was out of fuel, or a part (spark plug e.g.) was going into failure, but rather died like I had turned the ignition OFF (a sensitive difference that many might not recognize).  I put everything in "start-up" position and the engine started.  But as I released the parking brake, the engine died.  A quick brake-ON and the engine resumed; brake-OFF and it dies as the brake switch is activated.  It appears to be an electrical control circuit problem so I was reaching out for clarification of some schematic anomalies.  I am using ink to make note of your input.  Thanks. 

    Tnx (or rather Thanks) for the seat switch info.  I would never try to bypass it; a closed switch just looked weird on the schematic.  Technically, there should have been a "shorting device" shown in the switch connector.  Your input will save me much time in the diagnostic process.

    I would certainly appreciate any input to the possible cause of this problem.

    Again, thanks for you reply, Rick

     

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