1. Steering Mechanism:
The steering mechanism is essential for controlling and changing the direction of the tractor, directly impacting its safety. A thorough inspection of the steering system is crucial to ensure it remains in optimal condition at all times.
Key points to check:
1. Inspect the tightness of the tie rod, steering arm, and steering base, as well as the locking of the split pin. Ensure all components are securely fastened.
2. Check the axial pre-tightening of the steering shaft. Gently push and pull the steering wheel; there should be no noticeable play or shaking.
3. Verify that the steering wheel's free play is between 15 to 30 mm. If it's too loose or too tight, adjust it promptly.
4. Lubricate the ball joints with grease immediately to prevent wear and tear.
5. If any cracks or damage are found in the steering components, do not attempt to weld them. Replace the damaged parts with new ones.
6. When parking, make sure the steering doesn't lock up or jam. If it does, address the issue before continuing use.
7. If you experience vibration or directional drift while driving, stop and repair the issue immediately—do not continue driving for long periods.
8. If the steering feels "sinking" or unresponsive, investigate the cause and fix it right away to avoid further complications.
2. Braking System:
The braking system is responsible for slowing down and stopping the tractor. It plays a vital role in ensuring road safety, so regular checks are necessary.
Important checks include:
1. Inspect the brake lines for wear and ensure all connections are secure. Pay special attention to whether the lines are rubbing against the frame or other components.
2. Check the level of brake fluid. If it's low, top it up using the same type of brake fluid.
3. Confirm that the brake pedal has a free travel of 10–15 mm. Adjust if necessary to maintain proper function.
4. If the brake pedal sinks, it may indicate a leak in the hydraulic system or a faulty master cylinder. Investigate and repair immediately.
5. Weak braking could be due to excessive drum clearance, hardened brake linings, or improper adjustment of the brake drum.
6. A spongy or elastic feel on the brake pedal usually means air has entered the system. Bleed the brakes to remove the air.
7. Address any issues like brake drag or runaway braking to ensure safe operation.
8. After driving, touch each wheel hub to check the temperature. They should all be roughly the same. If one is excessively hot, it might mean the brake is dragging; if it’s too cold, the brake may be weak.
3. Driving System:
The driving system serves as the structural framework of the tractor, consisting of the frame, axles, wheels, and suspension. Regular maintenance is key to keeping it in good working order.
Things to check:
1. Ensure the frame and axles are properly fastened and show no signs of looseness or damage.
2. Check tire pressure and wear. If tires show uneven wear, identify the cause and correct it. Always maintain standard tire pressure regardless of load or road conditions.
3. Test the preload on the wheel bearings by gripping the top of the wheel and pulling. There should be no noticeable play.
4. When adjusting the front wheels, check the kingpin clearance and ensure it is properly lubricated.
5. Inspect the leaf springs for cracks or damage. Apply grease to the spring pins regularly to prevent rust and wear.
6. When parked, visually inspect the tractor’s body and check the alignment of the front wheels to ensure they are straight and even.
4. Transmission System:
The transmission system transfers power from the engine to the drive wheels, enabling movement and control.
1. Clutch:
a. Check the clutch pedal free travel (typically 25–35 mm). Adjust if needed.
b. Monitor the clutch for slippage, incomplete disengagement, or rough engagement during use.
2. Gearbox:
a. Look for oil leaks around the gearbox.
b. During operation, check for unusual noises or gear slipping. If problems occur, repair them promptly.
c. After driving, test the temperature of the gearbox. It should be warm but not too hot to touch. If it’s too hot, check the gear oil level and quality, and replace if necessary.
d. Listen for abnormal noises from the gearbox. This can be caused by worn gears, bearings, or misalignment. Low oil levels can also cause noise, so ensure the oil is at the correct level.
3. Drive Shaft:
a. Inspect the flange bolts at both ends of the drive shaft. Tighten any that are loose.
b. Lubricate the cross shaft regularly. Use a grease gun to ensure all needle bearings are adequately greased. However, avoid over-greasing the universal joint to prevent damage to the dust cover.
4. Rear Axle:
a. Check for oil leaks around the rear axle housing.
b. After use, feel the rear axle housing. If it’s too hot, check the oil quantity and quality, and top up or replace as needed.
c. Listen for unusual noises from the rear axle. Worn gears or improperly adjusted bearings can cause noise. This is often more noticeable when accelerating or decelerating.
d. To check the rear axle gear clearance, lift the rear wheels, engage the parking brake, and manually rotate the axle. Measure the gap visually or by touch to determine if adjustments are required.
Xuzhou Xinbaisheng Protective Equipnent Co., Ltd. , https://www.xinparkson.com