Mack 12 Speed Shift 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.

Mack 12 Speed Splitter transmission shift pattern diagram. This item's part number is 9RJ44M3, new, ready to ship worldwide. For help on your transmission parts with compatibility or availability, do not hesitate to call us at the number above.

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

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. I thought I bookmarked the video but can't find it. Super 10 mack 12 speed, are very simple and fun to drive for what

2016 Mack Trucks. SS-MDRV-0316-VSA MACK mDRIVE TRANSMISSION EASY SHIFT Provides smooth, precise and less aggressive shifting. It is recommended for livestock hauling, liquid bulk haul and similar applications where load shifting must be minimized. LOW-SPEED MODULATION CONTROL Provides smooth, low-speed control at idle speed without the use

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.

Refer to the shift pattern and move the shift lever to the Lo speed gear Lo range, Lo split position. position. Apply the accelerator, engage the clutch and accelerate to governed speed. Shift up through first, second, third and fourth speed gears, double-clutching between the gears. 12. Slide the Loreverse shift rail from the shift

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

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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