Best way to purge air from series 2/3/4 hydraulic systems after filter changes (compact/utility)

[Alan]

If you’ve just changed the hydraulic filters on your compact Deere and it’s now feeling all spongy and slow, it’s a sign that air is trapped in the system. What’s the best way to bleed it out? Is it necessary to cycle everything a hundred times, crack open the bleeders, and follow a specific order? What’s the most effective method to get it done without spending all day on it?

 

[deerestjohn]

Absolutely, air's the issue. I typically move the loader and backhoe slowly through all their functions a few times while keeping the engine idling. This helps eliminate that spongy feel without making it a big ordeal.

 

[MydeerestOne]

I just crack open the bleeders a little to let any bubbles escape, then cycle through each control several times.
It takes no more than ten minutes and is way easier than dealing with those lengthy 'hundred cycles' procedures.

 

[myBarnside]

Here's a quick tip: lift, lower, tilt, scoop, just repeat that a few times. Do a couple of passes for each function, top off the fluid, and usually, the sponginess goes away. No need for a marathon session.

 

[DeereDitz]

Honestly, I just jog all the hydraulics through their motions and keep an eye on the fluid level.
That trapped air typically frees itself up without needing to go through an extensive bleeder order process.

 

[Alan]

These tips are really effective, just simple cycling, a quick bleeder check, and adding some fluid usually get the job done without making it a whole-day affair.