Cat D4 undercarriage work (part 1)

Follow me on Instagram for pictures of rusty junk:   / pacific.northwest.hillbilly   Here are the previous videos from this project:    • Caterpillar D4-7U Rebuild   Email: [email protected] Mail: PNWH PO Box 2515 Hillsboro, OR 97123 0:00 intro and lighting 1:38 walkaround 5:15 chain and wear 11:17 rollers 14:00 sprocket and idler 15:50 removing idler arm 20:00 idler arm disassembly 26:24 spring removal 31:07 conclusion #caterpillar #d47u