Welcome aboard Fixer,!! Fine looking machine and great advice from Binderdan
An original parts book is invaluable for these old girls , Ebay is a great source
Not sure what series your machine is ,but a quick search showed this Genuine Original Hough H30R Payloader Wheel Loader Parts Catalog Manual | eBay
few more Genuine Original Hough H30 Payloader Wheel Loader Parts Catalog Manual | eBay