Note: Before starting, ensure that you have the necessary tools, parts (new clutch plate, pressure plate, release bearing, etc.), and a workshop manual for your specific John Deere Model M tractor.
1. Preparation:
- Disconnect the battery to ensure the tractor is electrically isolated.
- Position the tractor on a flat surface and engage the parking brake.
- Remove the seat and any other components that may obstruct access to the clutch housing.
2. Drain the Transmission Oil:
- Place a drain pan under the tractor.
- Locate the transmission oil drain plug (usually at the bottom of the transmission housing).
- Remove the drain plug and allow the transmission oil to drain completely.
3. Remove the Clutch Housing:
- Remove the bolts securing the clutch housing to the transmission housing.
- Carefully separate the clutch housing from the transmission housing.
4. Inspect the Clutch:
- Check the condition of the old clutch plate, pressure plate, and release bearing for wear and damage.
- Compare the thickness of the old clutch plate with the new one to assess its wear level.
5. Install the New Clutch Plate:
- Position the new clutch plate onto the splines of the transmission input shaft.
- Make sure the clutch plate is seated properly.
6. Install the Pressure Plate:
- Place the pressure plate over the clutch plate.
- Install the pressure plate bolts and tighten them evenly and gradually.
7. Install the Release Bearing:
- Inspect the release bearing for any damage or wear. Replace it if necessary.
- Install the release bearing onto the clutch fork.
8. Reattach the Clutch Housing:
- Carefully align the clutch housing with the transmission housing.
- Secure the clutch housing using the bolts that were removed earlier.
9. Adjust the Clutch:
- Loosen the locknut on the clutch control linkage.
- Turn the adjusting screw until there is slight free play in the clutch pedal (usually around 1 inch).
- Tighten the locknut to secure the adjustment.
10. Refill the Transmission Oil:
- Refill the transmission with the required amount and type of transmission oil.
- Consult your tractor's manual for the specific oil capacity and type.
11. Reattach the Battery:
- Reconnect the battery terminals to restore electrical power to the tractor.
Note: After replacing the clutch, it's advisable to drive the tractor cautiously for a few hours to allow the new clutch components to properly seat and break in.