Simplicity 1691786 GTH Parts Manual
![Simplicity 1691786 GTH Tractor manual cover](/images/wZiLecpwKcbpcYSRTpVyIoWL/thumbs/thumb175x175.webp)
To change the oil, first warm up the engine to ensure the oil flows more easily. Turn off the engine and place a container under the oil drain valve. Open the valve to drain the old oil completely. Replace the oil filter, then close the valve and refill the engine with new oil as specified in the owner's manual.
If your tractor won't start, check the battery to ensure it's fully charged and the terminals are clean. Make sure the fuel tank has enough gas and the fuel valve is open. Inspect the spark plug for wear and replace if necessary. If the problem persists, consult the manual for further troubleshooting steps.
Sharpen the mower blades at least once per mowing season or after every 25 hours of use. Dull blades can tear the grass rather than cutting it cleanly, which can lead to brown tips and increased susceptibility to disease.
Check the sidewall of the tires for the manufacturer’s recommended tire pressure. Typically, the front tires should be inflated to 14 PSI and the rear tires to 10 PSI. Always verify using the specifications in your owner's manual.
To improve traction, consider using tire chains or installing rear wheel weights. Ensure the tire pressure is correct and that the tires are not worn out. Operating at a lower speed can also help maintain better traction.
Clean the tractor thoroughly to remove dirt and debris. Drain the fuel or add a fuel stabilizer to prevent the fuel from degrading. Disconnect the battery and store it in a cool, dry place. Cover the tractor with a tarp or store it in a garage to protect it from the elements.
Check if the mower deck is level and adjust it if necessary. Inspect the blades for sharpness and damage, and replace or sharpen as needed. Ensure that the tire pressures are equal on both sides of the tractor to maintain an even cut.
Regular maintenance tasks include changing the oil, replacing the oil filter, cleaning or replacing the air filter, sharpening the blades, checking and inflating tires to the correct pressure, and inspecting belts for wear. Refer to the maintenance schedule in the owner's manual for detailed intervals.
Locate the mower deck adjustment lever, usually found on the side of the tractor. Move the lever to the desired position to raise or lower the deck. Ensure both sides are adjusted to the same height for an even cut.
Stop the tractor immediately and turn off the engine to allow it to cool down. Check the coolant level if applicable, and inspect for any leaks or blockages in the cooling fins. Ensure the engine compartment is clean and free of debris that could obstruct airflow.