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Ever blade backwards?

Discussion in 'Motor Graders' started by Fat Dan, Jan 30, 2020.

  1. Welder Dave

    Welder Dave Senior Member

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    Are you a certified grader operator now? Did you write the manual for Cat? I answered your question, more importantly I answered the OP's question and provided credible back up to support it as did others. The OP and other posters accepted it. You hijacked the thread to offer your opinion. At this point that's all it is, your opinion. You're disputing what it says in several operators manuals. Now answer my question. Show me in a manual where is specifically says not to grade in reverse? No more of this back and forth, show me a page from a manual to support your opinion.
     
  2. John C.

    John C. Senior Member

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    So you have never operated, maintained or repaired a grader of any kind. My parent’s generation called that talking through a paper bung hole. You keep trying make yourself look smart by standing on some one else’s shoulders.
     
  3. GaryHoff

    GaryHoff Senior Member

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    Interesting thread to say the least. Grading backwards isn't something I have personally ever seen or would have considered. I can see that it could have its places, and may have been more common before all wheel drive graders existed. However, I don't believe most operators possess the skill to do this, and it is not common practice.

    With that being said, lets not be taking any personal attacks on anyone.

    Quote from 160M series 2 operators manual:

    Intended Use
    This Motor Grader is an earthmoving machine as described in "ISO 6165:2001" and is classified as a grader. This is a self-propelled wheeled machine which has an adjustable blade positioned between the front and rear axles. This Motor Grader can also be fitted with a front mounted blade or a rear mounted ripper. This Motor Grader is intended for use in grading, sloping, ditching, and scarifying of materials through a forward motion.



    I have checked my Deere, Case, Cat and Volvo operator manuals, and none of them make any specific mention of grading in reverse (that I could find). Although, Case did make some mention of back dragging and operating angles.



    Case 885 Tier 3 Manual

    Using the moldboard to back drag material should
    be avoided if possible. This can cause heavy wear
    on the moldboard guides and possibly damage
    the side shift cylinder piston rod. If back dragging
    cannot be avoided, make certain material does
    not contact the positioning piston rod.

    Although the grader permits the circle turn 360°,
    most of the grading operations are done with the
    blade between 15° and 45° in relation to the work
    direction.



    TLDR Reverse grading is permitted, but not the main intended operating method.
     
    Last edited: Oct 16, 2020
    John C. likes this.
  4. Welder Dave

    Welder Dave Senior Member

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    I figured the name calling was coming. It's a pattern with you. You obviously can't provide anything other than your own opinion so feel the need to resort to name calling and insults. It certainly doesn't make you look smart! I think when you have such a closed mind it makes you lose credibility but people can decide for themselves.

    Several experienced operators and operating manuals going back to 1938 have confirmed the moldboard can be turned around and used in reverse. You dispute this despite seeing pictures and detailed explanations of it being done. It's right there in front of your eyes but you're more interested in arguing and voicing your personal opinion with nothing to back it up. Sorry but if Randy Krieg who wrote the operating manual for Cat, helped develop the H series, demoed the first 24H and has decades of experience including patents on graders shows definitive proof it can be done that's good enough for me and several others on this forum.
     
  5. Welder Dave

    Welder Dave Senior Member

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    M series are a little different beast. Cutting Edge has already replied that his Volvo manual states it can be done. Now in these manuals you have does it specifically state that the blade should not be turned around and used to grade in reverse? The Case manual almost alludes to it being able to be done. Copying your post another line comes up. Not sure why it doesn't show on your original post but is pretty conclusive. THANKS!

    TLDR Reverse grading is permitted, but not the main intended operating method.[/QUOTE]
     
  6. cuttin edge

    cuttin edge Senior Member

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    NB Canada
    [/QUOTE]
    My Volvo is a 2011. Manual is almost identical to the champion in the operating section. Says it is possible but not recomended. Like I said, I back drag small amounts of lose material sometimes when there isn't room to turn, just to feather out. Can't see myself taking the time to swing the MB around for that. I do peatmoss fields every year. The haul roads are only 16 feet wide and some are almost a mile long with no place to turn. It would be more convenient to grade in, rotate MB and grade out, but it is course shale, and even though it says it's possible, I think it would put a lot of pressure on the timing and rotational gears. If it were gravel, I would try it in a heart beat. But for now, grade in, back out, back in, grade out.
     
  7. Welder Dave

    Welder Dave Senior Member

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    It has been done successfully by experienced operators. Even one of the manuals states it is an advanced technique for experienced operators. If you get a chance you should try it and post the results.
     
  8. 20/80

    20/80 Senior Member

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    I have and sometimes back drag when doing some spot grading but no amount of distance, I have also swung the blade around and pulled material out of the ditch in reverse, but working on a shoulder you may find yourself being pulled into the ditch, I find you lose traction easier pulling material in reverse, but be careful not to shear your gearbox pinion off swinging your mouldboard around, to much back dragging will wear out the back of your holders if you are using stinger blades, so proper pitch on the blade is important, I believe back dragging and reverse grading may not be recommended but is important and useful if done cautiously.
     
  9. ovrszd

    ovrszd Senior Member

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    I agree with 20/80.

    I'm a bit baffled that this has become an argument. It's certainly possible. And in specific situations might be beneficial. As graders have evolved so has their versatility. All operators should be open to that. If not the operator is limiting their own potential.

    I have received several comments over the years from observers saying they didn't know a grader could do that. Makes me proud to be an operator when I hear that.

    The cutting edge is a simple extension of my hand.
     
    plowking740, GaryHoff, 20/80 and 2 others like this.
  10. ih100

    ih100 Senior Member

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    There’s things every machine can do that aren’t “normal” or accepted operation, but it isn’t a criminal offence to keep them in your arsenal for that once-in-a-while situation where you need to think out of the box. It gets a bit ridiculous when people get personal over a difference of opinion. I have a total of possibly forty hours on graders, but I’ve lost count how many on dozers and it still makes me laugh that I’m going to hell or Portland for dragging the blade backwards for ten feet.
     
    bccat, plowking740 and Welder Dave like this.