nicste Posted November 26, 2023 Share Posted November 26, 2023 Good day I am looking for information on the air system on a RS797T. I would like to redo all the piping that is currently a mess. Does anyone have schematics, picture or information on the layout of valves and pipe the systems correctly? Quote Link to comment https://www.bigmacktrucks.com/topic/73579-r-model-tractor-air-system/ Share on other sites More sharing options...
nicste Posted November 27, 2023 Author Share Posted November 27, 2023 Did the R models have 4 circuit protection valves before the primary and secondary reservoirs after the supply reservoir? I am working from the Bendix schematic, I believe there should be a third reservoir for auxiliary functions like the diff lock and wipers that would be supplied last from the 4 circuit protection valve. Quote Link to comment https://www.bigmacktrucks.com/topic/73579-r-model-tractor-air-system/#findComment-542592 Share on other sites More sharing options...
Solution mrsmackpaul Posted December 23, 2023 Solution Share Posted December 23, 2023 I have finally fiund the diagram of how Australian R models are plumbed Should give you a good idea of whats what Paul 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73579-r-model-tractor-air-system/#findComment-543990 Share on other sites More sharing options...
nicste Posted March 8 Author Share Posted March 8 Thanks, that is great Quote Link to comment https://www.bigmacktrucks.com/topic/73579-r-model-tractor-air-system/#findComment-547797 Share on other sites More sharing options...
Icehole Posted May 4 Share Posted May 4 Thanks, was trying to figure a few things. I know the tank isn't that big compared to most trucks I've run. I can get the low air buzzer going just moving it around the yard and having to jocky around stuff going forward/reverse/brakes. Considering putting an air dryer, the wet tank had oil, and it's made it's way through the whole system over the years. In the dash it's a lovely blend of misted oil from the air switch exhausts and caked on dust. Quote Link to comment https://www.bigmacktrucks.com/topic/73579-r-model-tractor-air-system/#findComment-551063 Share on other sites More sharing options...
mrsmackpaul Posted May 4 Share Posted May 4 If you don't have a drier you need to drain the tanks of moisture everyday Paul Quote Link to comment https://www.bigmacktrucks.com/topic/73579-r-model-tractor-air-system/#findComment-551073 Share on other sites More sharing options...
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