I have a used 2500 hr cat 307b excavator. What fluids do i need to watch and change? Specific fluids/grease to use? Didnt come with a manual so im not sure the manufacturers recommended maint intervals and fluids. Thanks.
Try here for a manual. Plug in your Serial Number and it lists all the options. The Operation & Maintenance Manual (O&M) is what you need, it will have all the information on fluids, maintenance jobs and intervals. Available for your machine for $36.99 on CD or $45.99 in a paper version. Money well spent TBH. https://servicemanualpro.com/