Description
When you notice hydraulic fluid where it shouldn’t be around your MF 135’s lift mechanism, or your three-point hitch starts dropping implements unexpectedly, this small O-ring might be the culprit. The pusher arm O-ring creates a critical seal in your lift system – without it, you’re losing the hydraulic pressure you need to operate implements properly.
What This Seal Does for You
- Seals the pusher arm to prevent internal hydraulic leaks that rob lifting power
- Keeps hydraulic pressure where it belongs for reliable implement control
- Prevents contamination between hydraulic fluid and transmission oil
- Restores proper three-point hitch operation when other seals are functioning
Essential for Daily Farm Work
Your MF 135 handles everything from front loader work to three-point implements like plows, cultivators, and mowers. The pusher arm transfers hydraulic force from the control valve to your lift arms, and this O-ring keeps that system sealed tight. When it fails, you’ll notice implements won’t stay where you set them, reduced lifting capacity, and hydraulic fluid mixing where it shouldn’t.
Built to Handle the Pressure
This isn’t just any O-ring – it’s specifically sized and made from materials that handle the pressure and heat cycles your hydraulic system creates. The rubber compound resists hydraulic fluid breakdown and maintains its seal even as temperatures fluctuate from cold mornings to hot afternoons in the field.
Installation Notes
Replacing this O-ring requires partial disassembly of the lift cover to access the pusher arm assembly. While you’re in there, it’s a good time to inspect the pusher arm itself and the hydraulic lift shaft bush for wear. Clean everything thoroughly during installation – dirt is the enemy of hydraulic seals.
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