down shifting 10 speed

Discussion in 'Questions From New Drivers' started by Horse, Oct 2, 2010.

  1. Oct 2, 2010 #1
    Horse

    Horse Bobtail Member

    3
    0
    Oct 2, 2010
    0
    I have a nagging question about down shifting. I am not a driver yet but have been around some drivers. I was in a truck and the driver told me this -but I can not find any info from eaton or spicer or other manufacturers-. The driver said when downshifting from H range to 1st gear he has to go through 5th low before he can skip shift down to 1st. He showed me this: he came to a stop in 9th gear (high range) he shifted the range lever to low and tried to shift into 1st and the gears ground. He could not shift, he had to go back and pick up 5th grear before he could skip shift down to 1st.
    He said he always has to pick up 5th gear when skip down-shifting even when moving or the range control will not shift properly. Does anyone know what I am talking about?

    At standstill I think the clutch is spinning and no clutch brake.

    Respectfully
    Horse
     
    Horse, Oct 2, 2010
    Horse, Oct 2, 2010
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. Oct 2, 2010 #2
    Bent Wrench

    Bent Wrench Medium Load Member

    588
    205
    Aug 11, 2009
    Cornholio, OR
    0
    If I am sure I am going to stop I go into neutral as I am coasting down, then while slowing at about 3 MPH you can slip it into your starting gear 2,3,or 4 as the RPMs match and depress clutch before you stop.

    If you may need to take off without stopping completely you should split down. So you don't get lost.
     
    Bent Wrench, Oct 2, 2010
    Bent Wrench, Oct 2, 2010
    #2
  4. Oct 2, 2010 #3
    25(2)+2

    25(2)+2 Trucker Forum STAFF Staff Member

    18,759
    45,987
    Sep 18, 2006
    the road less travelled
    0
    Moving the shifter across the pattern is what actually switches the range when the selector is switched, moving the selector merely selects it. Did you mean from 6th to 1st?

    With your air pressure built up, try shifting without the engine running, switching the range makes whoosh sound(a weak one anyway), but when you move the shifter across neutral, you will hear the transmission being shifted, you may also feel it.

    I drove a really heavy duty 9 speed an a converted fertilizer applicator in 2004; shifting the range in motion with the engine running could be heard and felt.
     
    25(2)+2, Oct 2, 2010
    25(2)+2, Oct 2, 2010
    #3
  5. Oct 2, 2010 #4
    Allow Me.

    Allow Me. Trucker Forum STAFF Staff Member

    10,770
    12,594
    May 28, 2009
    Rancho Mirage, Ca.
    0
    :mconfused: I think I understand, sometimes you can't get into 1st, when that happens, shift into 4th or 5th ( it won't grind) then back into 1st (easy as pie)! But, i gotta say, if he's using 1st gear, especially when empty, he's in-experienced.
     
    Allow Me., Oct 2, 2010
    Allow Me., Oct 2, 2010
    #4
  7. Oct 2, 2010 #5
    Capt_Gruuvy

    Capt_Gruuvy Light Load Member

    264
    94
    Jul 29, 2010
    Middle of the Desert
    0
    It's all about RPMs.

    Unless you are hauling 80,000 you may want to leave 1st out of it.
     
    Capt_Gruuvy, Oct 2, 2010
    Capt_Gruuvy, Oct 2, 2010
    #5
  8. Oct 2, 2010 #6
    Trick Daddy

    Trick Daddy Bobtail Member

    37
    3
    Sep 13, 2010
    Loves Park, IL
    0
    Sounds like a straight ten, I have driven that trans, and you just need to get the range selector down and select the right gear...5, 4, 3, uh, 2 or 1...that seems a little slow for a downshift to begin with. Downs from 6th to 4th are pretty common in our group (class), so there is no need to get 5th on the way down...no. The splitter (range selector) just needs to be down when you go through neutral into the lower gear. Most of us (in our class) just drop it when we are in the higher gear so it's a simpler motion for downshifting. Just remember that you have that thing down...if the light changes and you don't need the down, you may find yourself trying a 7th to 3rd gear shift if you forget it....lol.
     
    Trick Daddy, Oct 2, 2010
    Trick Daddy, Oct 2, 2010
    #6
  9. Oct 2, 2010 #7
    Horse

    Horse Bobtail Member

    3
    0
    Oct 2, 2010
    0
    By 1st I meant 1st gear above his creeper gears. All that information is standard according to eaton transmission web site. He said he would shift 1l 2l 3l 4l 5l then high range repeat the pattern but with preselecting the high range and to down shift to low range he could skip to 6H but to skip to a lower gear such as 4l he would have to go through 5th(lo range) gear to keep the range control from grinding gears.

    I hope I am not confusing anyone. I mean 1L = 6H with range control on high
    2L=6H 3L=7H this is with out using any OD/UD splits just the range control.

    I don't have access to the truck anymore.
     
    Horse, Oct 2, 2010
    Horse, Oct 2, 2010
    #7
  10. Oct 2, 2010 #8
    Bent Wrench

    Bent Wrench Medium Load Member

    588
    205
    Aug 11, 2009
    Cornholio, OR
    0
    Unless you are at max load and going up hill you probably are not going to use Lo, 1 or even 2.
     
    Bent Wrench, Oct 2, 2010
    Bent Wrench, Oct 2, 2010
    #8
  11. Oct 2, 2010 #9
    Horse

    Horse Bobtail Member

    3
    0
    Oct 2, 2010
    0
    I am looking at the Fuller Roadranger instructions and they post no caveats about skip shifting from high range down to low range gears 1,2 or 3 skipping 4th. Maybe I misunderstood.
    On my side there are so many different models and variations or maybe his transmission was hard shifting and going through 4th gear or 5th seemed to work.

    Thanks for all the reply's
    Actually I have had a CDL for many years just not a class A
    I am kind of looking foward to see a dump truck driver haulling a 10,000# plus trailer get arrested for not having a class A license.

    Thanks.
     
    Horse, Oct 2, 2010
    Horse, Oct 2, 2010
    #9
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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