- **Tools Required:**
- **Tape Measure:** Used to measure the distance between the front tires for alignment. Accurate measurements are critical for proper alignment.
- **Wrench Set:** Necessary for loosening and tightening the bolts on the tie rods and steering components. A standard or metric set may be needed depending on the tractor's specifications.
- **Level:** To check the level of the tractor and ensure that the alignment process is performed on a flat surface.
- **Alignment Gauge (optional):** While not mandatory, this tool can provide more precise measurements for toe-in and toe-out adjustments.
- **Jack and Jack Stands:** To lift the front of the tractor, providing access to the steering components if needed.

- **Preparation:**
- Ensure the tractor is on a flat, level surface. This is crucial for accurate measurements.
- Check tire pressure; all tires should be inflated to the recommended pressure for accurate alignment.
- Inspect tires for uneven wear, which may indicate misalignment or other issues needing attention.

- **Measuring Toe-In:**
- **Measure Tire Width:** Use the tape measure to measure the distance between the front edges of the front tires. Record this measurement.
- **Measure Rear Width:** Move to the back edges of the tires and measure the distance again. This distance should be slightly less than the front measurement for proper toe-in (typically around 1/8 inch).
- **Adjust if Necessary:** If the rear measurement is wider than the front, adjustments are needed.

- **Adjusting Toe-In:**
- **Loosen Tie Rod Lock Nuts:** Use the wrench to loosen the nuts on the tie rods, which connect the steering linkage to the wheels.
- **Adjust Tie Rods:** To increase toe-in, turn the tie rod ends inward; to decrease toe-in, turn them outward. Make small adjustments and re-measure until the desired toe-in is achieved.
- **Tighten Lock Nuts:** Once the correct toe-in is set, re-tighten the lock nuts securely to hold the adjustment.

- **Check for Worn Parts:**
- Inspect tie rods, ball joints, and other steering components for wear or damage. If any parts are worn or damaged, they should be replaced to ensure safe and effective alignment.
- Common replacement parts may include tie rod ends, ball joints, or steering arms. These parts can wear out over time and affect alignment.

- **Finishing Up:**
- After adjustments, recheck all measurements to confirm proper alignment.
- Take the tractor for a short test drive to feel for any steering issues or vibrations.
- Recheck tire wear after some use to ensure that the alignment has been successfully corrected.

- **Additional Notes:**
- Regularly check alignment, especially if the tractor has hit obstacles or if tires are replaced.
- Maintaining proper alignment helps extend tire life and ensures better handling and performance of the tractor.
rteeqp73

Repairing a starter motor on a Massey Ferguson MF35 tractor involves understanding the components and their functions. Here's a theoretical explanation of the process:

### 1. **Diagnosis of the Fault**
- **Understanding Symptoms:** The starter motor may fail to engage or crank the engine due to issues like a dead battery, faulty solenoid, or worn-out motor components.
- **Testing Voltage:** Use a multimeter to check for voltage at the starter motor terminals when the ignition is turned on. This helps determine if the issue is electrical (battery, wiring, solenoid) or mechanical (inside the starter motor).

### 2. **Removing the Starter Motor**
- **Disconnecting the Battery:** Always disconnect the negative terminal to prevent electrical shorts or shocks.
- **Accessing the Starter:** Remove any covers or components blocking access to the starter.
- **Unbolting the Starter:** Disconnect the wiring (noting their positions) and remove the bolts securing the starter motor to the engine.

### 3. **Disassembling the Starter Motor**
- **Understanding Components:** The starter motor consists of the housing, armature, field coils, brushes, and solenoid.
- **Removing the End Plate:** Unscrew the end plate to access the internal parts, which may include the armature and brushes.
- **Checking Components:** Inspect for wear or damage:
- **Brushes:** Worn brushes may not make good contact with the armature, leading to insufficient current flow.
- **Armature:** Look for burnt windings or shorts.
- **Field Coils:** Ensure they are intact and not shorted.

### 4. **Repairing or Replacing Parts**
- **Replacing Brushes:** If the brushes are worn, replace them. This restores proper contact with the armature, ensuring adequate electrical flow.
- **Rewinding the Armature:** If the armature is damaged, it may need to be rewound or replaced. This restores the magnetic field necessary for the motor to turn.
- **Testing the Solenoid:** The solenoid engages the starter gear with the engine flywheel. If it’s faulty, replace it to ensure proper engagement.

### 5. **Reassembling the Starter Motor**
- **Reinstall Components:** Carefully reassemble the motor, ensuring all parts fit correctly and are secured.
- **Testing Movement:** Manually turn the armature to ensure it spins freely, indicating no internal binding.

### 6. **Reinstalling the Starter Motor**
- **Positioning and Bolting:** Place the starter back onto the engine and secure it with bolts.
- **Reconnecting Wiring:** Attach the electrical connections as per the noted positions.

### 7. **Final Testing**
- **Reconnecting the Battery:** Reattach the negative terminal and ensure all connections are tight.
- **Testing the Starter:** Turn the ignition key to see if the starter motor engages and cranks the engine. If it does, the repair has been successful.

### Theory Behind the Repair:
- **Electrical Flow:** Ensuring good contact in the electrical system is crucial for the starter motor to receive adequate voltage.
- **Magnetic Field Operation:** The starter relies on the interaction between the magnetic fields generated by the field coils and the armature to create rotational motion.
- **Mechanical Engagement:** The solenoid's function in pushing the starter gear into the flywheel ensures that the engine can be cranked effectively.

Understanding these principles helps in diagnosing issues effectively and performing repairs that restore functionality to the starter motor.
rteeqp73