I recently inqired about gear ratios for this box, which we have now fitted to my R600.I am pleased with it as it gives me a lower 1st. and reverse than the old 5 speed box with the ability to do 100 KPH at about 1450 RPM in 5th.Can anybody tell me how to use it? Starting off in low 1st. and spliting up to high is ok.It looks as though going back to low third from high second would be an advantage then high third, but not in the other gears.The question is am I supposed to be able to split third and how? Pre selecting makes a lot of noise so is obviously not right. Any ideas.
If U don't like my Driving .... well then get off the footpath ...... LOL
Thank you received: 1079
Old Dog nose hiz cogz
the 2 stik 6 speed mack Maxidyne was Gr8
the next best thing to drive n an auto
U do half the gear changes compared toa screemer n Road Ranger
the only disadvantage we found over many years
twaz U tend to cum off a hill to fast n burn the brakes out
one gear too hi next gear too Low
Luvd the 5 gears reverse n used m all
me posted this B 4
Happy Grind n
OF ALL THE THINGS EYE MISS ................. EYE MISS MY MIND THE MOST
hi there i drove a 73 mack with 237 with 6 speed for 5 years carting logs it was 5 speed with reverse on main box direct neutral then overdrive on compound stick you left compound stick in direct then 1 to 5 in main box then shift compound stick from direct to over drive pretty big gap needed to wind it up in 5th first that old maxidyne pulled likea train could stay with the 285 with 12 speeds we had cheers ray
You are certainly not wrong, old dog! The T2060 had a 5-speed plus reverse main box combined with an air operated 2-speed. As has been said, this 2-speed was NOT a splitter as the ratios did not give splits between the main gears. The Mack instruction label said something like:
SHIFT SEQUENCE Lo 1, Hi 1, Hi 2, Hi 3, Hi 4, Hi 5
Lo Range is to be used in 1st and Reverse gears only
I've never driven a 6 speed Mack box, but I thought they had 2 levers. I think there was interlock to stop you using the split lever once it out of first gear that I think some bloke took out so they could split the other gears. But I could be wrong there, Murranji would know I reckon.
I have driven the 5 and 10 speeds, the 10 speed has the splitter neutral and reverse on the knob and the 5 gears on the stick. The 12 speeds have 2 levers with the same knob as a 10 speed with the split neutral and reverse on it, and the second lever as the low gear, like a 6 speed with a splitter.
I think Mack have made more models of gearboxes than the years you and I have been alive, Cam. The T2060 and T2070 ones I have seen had a pull-up knob for the air change 2-speed mounted on the gearstick like the old RR range-change or deep reduction buttons. The 2070 was a 7-speed in which you used Lo and Hi in Reverse, 1st and 2nd only.