Hello I need some help identifying some controls on a 1989 r900b that I’ve bought to use on my property I’m trying to work out what the two left pedals are for. I think one will be for the aux piping on the boom as the joysticks don’t have any other switches, but any help would be appreciated. My background of helicopters not excavators so still getting up to speed I’ve also had no luck finding a manual that covered my machine. I have bought a manual online but it was for a much newer serial numbers
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