12 Speed Shifting Pattern

5 speeds on the stick in the standard quotHquot pattern, reverse is on the air shift knob, enabling the use of all 5 speeds in reverse as desired, also on the air shift knob is a hilo splitter which you can use to split each of the 5 gears in half, similar to operating a 2 speed rear.

I havent had much practice with shifting mack trannys. Pretty much just drove an automatic and an Fuller 8LL a little. Any advice the truck will be a e9 v8 w 12 speed mack 464 rears. I heard that many shift a 12 speed just like a 5 speed and just split the top gear for overdrive. Any advice wou

Recently bought a Case 1490 with the 12 speed Syncromesh transmission. The operators manual shows the schematic pictured, Figure 45. Sitting in the tractor at about the right calf position is the main shifter with the four basic positions of 1-2-3-R in an H pattern.black knob At your left hand side are the two large levers with grey knobs which are used to select range 1 thru 4 with each

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Maybe it was the 1st time I was exposed to this and didn't realize there was 2 speeds plus the transmission and the shift pattern IIRC was screwy. I came away from that video with a great appreciation for what drivers do. Just stick with shifting your 4 speed chevette and leave the 12 speed shifting to the professionals . Reactions

Forget about gear numbers at a particular speed. An Eaton 13-speed on a set of 3.90 rears is going to shift differently than one on 3.73, 3.55 or 3.28. Even tire size will effect shift points. First, figure out how much RPM drop there is between gear changes. Then figure out where the motor likes to shift at. Then go up and down through the gears.

need to have some advise on shifting a Mack 12 speed tranny . many people are saying . 1- push clutch. 2- pull stick on 1st direct. 3- release clutch. 4- apply fuel pedal. 5- push knob on HI. 6- release fuel pedal. 7-push clutch. 8- release clutch. 9- apply fuel pedal again. 10- push clutch. 11- pull out stick from 1st to neutral and push knob

I recently ordered a shifter and a shift knob with range and splitter buttons, and decided to put together a visual aide for myself with each available shift pattern. I've got it mostly done, but I can't seem to find any references to the layout differences between the Scania 12 speed and 122 speed or the Volvo 12 speed and 122 speed.

Hauling a heavy load of concrete in a 1990 R-Model Mack truck with 350hp and a 12 speed.This will be my last video taken while driving for insurance purposes

I'm not an expert but I'll do my best to show how to shift a 12 speed Mack transmission.