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Read articles →This is a hands-on owner video showing the prep work before a first service on a John Deere 3520 at 127 hours: removing the quick-attach loader and auto-connect mower deck, capping hydraulic lines, warming the engine, and laying out new parts (oil filter, air filter, fuel filter, oil). It ends as the actual oil drain begins, so it's most useful to owners wanting to see teardown steps rather than the full service itself.
Posted by the JD Tractor channel, an owner walking through DIY maintenance on his own 3520.
Pull the quick-attach pins, move the joystick to release hydraulic pressure, then pull and cap the hydraulic line caps (blue, yellow, and black) before lifting the loader off.
Lower the deck fully using the rear SCV, pull a pin, push it in, then simply drive the tractor forward off the deck to disconnect it.
An outer air filter, a screw-on fuel filter, a new oil filter, and John Deere Plus-50 engine oil, since the engine takes five quarts total.
