Change Hydraulic Filters and Drain Engine Oil

What happens here

The presenter retrieves a wrench to begin removing the filters. He first loosens the 25-micron hydraulic filter, which immediately starts to drip fluid. He then fully removes it, allowing the remaining hydraulic fluid to drain into a catch pan placed underneath. Next, he removes the smaller 10-micron hydraulic filter. After the hydraulic fluid drains, he uses a wrench to loosen the engine oil drain plug, which is conveniently positioned to drain directly into the same catch pan. He allows the engine oil to fully drain, noting the dark color typical of diesel engine oil.

Goal: Replace worn hydraulic filters and drain old engine oil.