The 9 speed shift pattern is the same start as a regular 5 speed having reverse at the top left. The upper and lower range of the transmission is chosen by means of a lever switch, choosing first the low range, (lever down for 1st thru 5th gears) ...then the upper range. (Lever up for 6th thru 9th) 1st gear is left and down, and progressing to the regular H shift pattern for 2nd 3rd 4th and 5th. The air splitter lever is then flipped up (high range), and the H shift pattern is repeated for 6th thru 9th gears. The upper transmission range is never used for reverse.
R 2nd / 6th 4th/ 8th
1 3rd / 7th 5th/ 9th
First gear is such a low gear it is usually only used when pulling a loaded trailer. or have a low powered truck.
Same shift pattern as a 9 speed. Youtube has a great video straight from eaton fuller on it that would be better than me typing it.
The Eaton-Fuller and Rockwell websites should have them. Google images will be able to find images, as well.. you just put in "8LL shift diagram", "9 speed shift diagram", "10 speed shift diagram", etc.
I've never heard of an Eaton Fuller 12 speed, nor am I able to find any references to one via Google. I've driven Eaton Fuller 8LL, 9 speed, 10 speed, 13 speed, and 18 speed transmissions - could you be thinking of one of these? IIRC, Volvo marketed a proprietary 12 speed transmission, and Meritor offered a 12 speed automatic, but not Eaton Fuller.
Depends on whether you have the synchronised gearbox (more common in Europe) or the unsynchronised gearbox (such as an Eaton-Fuller or Rockwell).
It's the same as the shift pattern for the Eaton Fuller nine speed transmissions, albeit with additional gears on the low side. For the sake of not wanting to type out a long winded explanation, there is a related link posted - 'Eaton Fuller 18 speed shifting diagram'. Click on that link to see a visual representation of the shift pattern.
50W synthetic, or 70W mineral.
No you cannot change a 13 to a 18 speed, however you can change a 18 speed to a 13 speed just by changing the shift knob.
Keep rpm between 1400 to 1600
No you can not, it is a different transmission. The 18 speed has a splitter for the lower range as well as high range.
9 speed doesn't have a gear splitter, just the range selector.
Depends on the final drive ratio.
................2...............4---------------6/7...............10/11 1..............3...............5---------------8/9------------12/13 ................low range......................high range with splitter on each gear