................2...............4---------------6/7...............10/11
1..............3...............5---------------8/9------------12/13
................low range......................high range with splitter on each gear
Keep rpm between 1400 to 1600
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.
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.
Fuller Transmission shift diagrams.There are several places on or offline where you can obtain and Eaton fuller 15 speed gear shifting diagram. It depends what method you prefer. such as from your Truck dealer or a Truck Transmission Re-builder or someone who offers fuller transmission parts and service. For more information of sources online, see the Related Links section further down this page.
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.
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.
No you can not, it is a different transmission. The 18 speed has a splitter for the lower range as well as high range.
Could be a few different things. Bad shift forks would be the most likely culprit if it were a manual transmission. For an auto, probably either a faulty transmission ECM or worn synchronizer gear.
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.
The ideal RPM range depends on your engine, and the speed depends on your transmission gear ratios, rear end gear ratio, and tire revolutions per mile.
On an unsynchronized manual transmission, you either have to double clutch (which will be required on any road test or "float" the gears. For the actual shifting patterns, diagrams should be readily available online.
I want to see the shift patterns