hello iowagold,
you'll be hard pressed to find any books online for this unit unless your willing to pay for them. Generally you can call the local dealer and have them look it up and give you the part numbers and pricing and order them for you. I can tell you Yale will not give you any service or parts books, they would most likely sell you one but you probably wouldn't want to pay their price for them, they are expensive. If this is an older machine earlier than 2000? good luck even getting them to locate and sell it to you. Most of their older machines were purged from their system long ago, they only have post 2k material now online.
As for your 'brass' distributor cap and rotor? i'm assuming you mean brass electrodes and contacts? You can't just order those that way, you get whatever they are making them out of these days, most have some sort of brass in them but it is usually a mix of other metals like nickel etc now.
The hose kit is another thing, these are difficult to get, especially if you have an older machine. You will need these things to get the right hose kit, the mast group number off the side of the mast, know which function you want to add? 3rd or 4th or 5th function? (they come standard with lift and tilt), and quite a few do come with a sideshifter 3rd function. So be specific as to what you want, a full installation kit(with hardware) or just hoses?. Also is it a single stage? duplex stage? or triplex stage mast? (this is why the group number is important).
Now if your just replacing hoses you would be better off removing the ones you have and taking them to a hydraulic hose shop and have them make you new ones using the old ones as a template.
So what model and serial number unit do you have and i might can help, if it's too old i'm not so sure but i will try.