Clutch for Triaxle dump

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Don379, Apr 15, 2021.

  1. lester

    lester Midwest's #1 Feed Hauler

    2,819
    7,479
    Jan 2, 2012
    NW, Iowa
    0
    Guess what I meant to say or ask, does putting a heavier torque rated clutch than what you are actually putting out help the clutch last longer?
    In your case @Don379 running a C-12 in a dump truck, I assume not grossing over 60-70k. I know off road work is hard on a clutch especially following the trimmer or milling machine but will the higher rating really help with life of a clutch that just gets used a LOt
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Don379

    Don379 Heavy Load Member

    714
    1,285
    Jan 7, 2021
    0
    Hey bud yeah i actually put a brand new 18918b in her. everything is new
    Welp did some more poking around, its just not the clutch for heavy duty dump truck use. Lots of slipping doing the clutch with millings. lots of stop and go, etc. I dont use the clutch while shifting but lots of starts and stops during the day. A live and haul around of alot of steep grades and traffic lights on steep grades. I haul the legal lmit in my state all day which is 73280. WHich im usually dead on at the quarry and go across the scale at almost exact. the loaders have scales. But doing dirt work and millings, we get overloaded alot of times. Sometimes around 80k. I check my weights sometimes at the quarry scales and tell the operators to lighten up.
     
  4. jamespmack

    jamespmack Road Train Member

    19,160
    207,379
    Mar 25, 2014
    OH
    0
    Was the input shaft changed?
     
  5. Don379

    Don379 Heavy Load Member

    714
    1,285
    Jan 7, 2021
    0
    As far as the little c12 impression that c12 wont hurt a clutch during the usage triaxle uses it for, and no offense taken at all my friends. My truck is worked, i can pull away or hang with some of the older 3406 and cummins. No new macks or other run of the mill emission trucks especially automatics cant hang with my truck at all un steep grades. Everyone always syas, that have a c15 in it? im like nope, just a little c12. Anyhow, just for your viewing pleasure i took some video with my cam i have been using for mechanic work. Im behind a buddy of mine in his 2004 frightliner fld with big 14l detroit completely worked over with bigger injectors turbo, etc. Both of us left quarry maxed out around 73K. HArd to tell from video, but this is a nasty hill to take and cant get momentum. He pulled all the way up in 6 high and left me but i had to drop to 6 low. HE didnt get too far away. I have 02 379 pete. Not bad for a little c12. enjoy
     
    AModelCat Thanks this.
  6. Don379

    Don379 Heavy Load Member

    714
    1,285
    Jan 7, 2021
    0
    CAme with brand new input shaft. All i had to do is reuse my old belllhousing bud. NEw trans full assembled
     
    jamespmack Thanks this.
  7. ClineER

    ClineER Light Load Member

    229
    139
    Apr 27, 2016
    N.E. Oklahoma
    0
    Just my 2 cents. I work alot on mixer trucks, similiar application and have noticed anything over 1700ft lbs on clutch seems to be too jerky and doesnt have good manners.
    I usually install the 308925-82 on trucks rated to 1750ft lbs and they hold just fine and seem to get best life without being jerky or making noise. I have replaced a few that shops install a 2050 or 2250 clutch and they get shorter life with higher failures in hub, not sure why they have higher failures.
     
    black_dog106, BoxCarKidd and Don379 Thank this.
  8. Don379

    Don379 Heavy Load Member

    714
    1,285
    Jan 7, 2021
    0
    Thank you i appreciate it
     
  9. jamespmack

    jamespmack Road Train Member

    19,160
    207,379
    Mar 25, 2014
    OH
    0

    I'm not being smart. Just have worked on them, longer than I have driven them. See alot of clutch complaints from someone who changed clutch, yet never changed worn input shaft. Worn, they get graby.
     
    BoxCarKidd and Don379 Thank this.
  10. Don379

    Don379 Heavy Load Member

    714
    1,285
    Jan 7, 2021
    0
    oh yeah i understand that and i truly appreciate you brainstorming and helping out my friend.
     
  11. jamespmack

    jamespmack Road Train Member

    19,160
    207,379
    Mar 25, 2014
    OH
    0
    I only own a 1850 clutch in a 16713 trans behind a 12.7l detroit that is known to gross 90-100k on 5 axles.

    Driving habits are a bigger problem than parts. About 400k on a clutch currently. I double clutch however.
     
    spsauerland and BoxCarKidd Thank this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.