Definition and role
- The “intake gasket” on an MF20 small square baler is the seal between the feeder/intake housing and the bale chamber (or the mating face of the intake cover/ throat). Its job is to maintain a tight, correctly shaped feed passage so crop is guided into the bale chamber without escaping, and so the plunger and apron act on the charge with the intended geometry and pressure.

Ordered procedure (do this exact sequence)
1. Safety and preparation
- Park tractor/baler on level ground, engine off, key removed. Chock wheels and lower/secure any hydraulics.
- Disconnect or remove the PTO shaft and lock out the baler driveline. Wait for moving parts to stop.
- Wear gloves and eye protection.

2. Remove exterior guards and access panels
- Unbolt and remove the shields that cover the pickup, feeder and intake throat so you can access the intake cover and its bolts.

3. Relieve tension on aprons/chains and remove interfering parts
- Loosen or remove apron/feeder tension (follow the machine’s arrangement) so you can pull the intake cover or housing away without stretching belts/chain.
- If necessary, remove the pickup teeth or retainer bars only as needed for clearance.

4. Unbolt the intake cover/housing
- Remove the bolts that hold the intake cover or throat plate in place. Keep bolts and any spacers in order.

5. Remove old gasket and inspect mating faces
- Pry off the old gasket material and scrape both mating surfaces clean of old gasket, paint, dirt and compressed fiber. Use a gasket scraper and solvent if needed.
- Inspect both faces for flatness, burrs, gouges or corrosion. Light surface pitting is acceptable; deep gouges or warped plates must be repaired or replaced.

6. Prepare replacement gasket and mating surfaces
- Use the correct OEM replacement gasket or gasket material sized to the part. If manufacturer recommends a sealant, use a thin even coat compatible with the gasket material.
- Ensure bolt holes line up and the gasket is fully seated without bunching.

7. Refit intake cover and hand-start bolts
- Reposition the cover/housing, align the gasket and hand-start bolts so everything seats evenly.

8. Tighten bolts in a cross/diagonal pattern
- Tighten progressively and evenly in a cross pattern to the manufacturer’s torque spec. If you don’t have a spec, snug them evenly then give a final incremental tighten — do not overtighten (crushing gasket or distorting the housing).

9. Reassemble aprons, tensioners and guards
- Restore apron/feeder tension, reinstall any removed parts, reattach shields and guards. Replace any damaged or stretched fasteners.

10. Functional checks and adjustment
- Rotate the drive by hand (with PTO disconnected) to make sure the feeder flows freely and there is no contact or binding.
- Reconnect PTO, start the tractor, run baler at low speed and observe the intake/feeder for leaks, crop escape or abnormal vibration.
- Make one low-speed test bale, then inspect bale formation, density and knotter/tying. Re-check fasteners after first use.

Why the gasket fails (theory)
- The intake gasket sees vibration, dust, crop abrasion, compression and sometimes heat. Over time the gasket material compresses, becomes brittle, or is abraded by debris. Uneven bolt clamping or a warped mating surface will shear or crush the gasket locally. Damage or gaps let crop and air leak around the intended feed path.
- A compromised seal changes the geometry of the incoming charge: crop can spill, the apron/plunger charge is reduced or inconsistent, and the plunger cannot compress and form the proper bale mass. Loss of a controlled feed path can also cause localized wear or jamming where material rubs against edges the wrong way.

How the repair fixes the fault (theory)
- Replacing the gasket and restoring flat, evenly clamped mating surfaces recreates a controlled, sealed feed passage. That:
- Prevents crop escape and ensures the full intended charge enters the chamber.
- Restores repeatable feed geometry so the apron and plunger compress material to design density.
- Removes leak paths that caused turbulence or material packing that led to blockages and uneven wear.
- Eliminates vibration/looseness caused by an uneven seal that accelerates secondary damage.

Quick notes and common pitfalls (no fluff)
- Always use the correct gasket material and avoid over-tightening bolts — distortion causes immediate problems.
- Clean mating surfaces thoroughly; a new gasket on a dirty warped face will fail quickly.
- If the mating face is bent or deeply scored, replace or machine it — a gasket alone won’t fix a warped plate.
- After first bales re-check bolt torque and seating.

That’s the end-to-end theory and ordered procedure.
rteeqp73

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