How does a range change gearbox work?
An alternative to the ‘splitter’ type are ‘range change’ gearboxes, where, instead of splitting each gear, the driver will use all four, then flip a button whilst moving from fourth back into what was first, but becomes fifth! Smaller trucks are more straightforward, however, some with none or just six gears.
What type of gear is used in a range change?
Range transmissions use an “H” pattern through a narrow range of gears, then a “range” control shifts the “H” pattern between high and low ranges. For example, an 8-speed range transmission has an H shift pattern with four gears. The first through fourth gears are accessed when a low range is selected.
How to troubleshoot an Eaton heavy duty transmission?
Guide to servicing and repairing Eaton Fuller heavy-duty truck transmission, assistance locating the issue of transmission trouble, analyze the cause and make necessary repairs for 7, 8, 9, 10, 13, 15 and 18 speed Eaton transmissions. For more in-depth assistance refer to your transmission model service manual or give us a call at 877-776-4600.
Where is the Air Line in an Eaton transmission?
At the rear of the transmission, disconnect the 1/4″ rubber air line from the low range supply port on the range cylinder. Check for air flow from the low range port. Air flows from the low range port. Remove range cylinder cover and repair leaking range piston or piston seal.
Where is the exhaust port on an Eaton Fuller transmission?
The air from the low side of the range cylinder is exhausted as air pressure is applied to the high range side. Likewise, air from the high range side of the piston is exhausted as air pressure is applied to the low range side. The exhaust port is located at the slave valve to transmission mounting interface. Internal leak in range cylinder.
Where does the air pressure go in an Eaton Fuller?
When the range selector on the shift knob is moved down to select low range, air pressure will flow through the shift knob to the “P” port on the slave valve. The slave valve will direct air pressure through the low range 1/4″ rubber hose to the range cylinder to shift the range.
https://www.youtube.com/watch?v=zL0LX0oo0Mg