McCulloch M46–450 CMDWA Spare Parts List
![McCulloch M46–450 CMDWA manual cover](/images/KVmbtlTJgwKvmWSsLVYmWcqX/thumbs/thumb175x175.webp)
To start the McCulloch M46–450 CMDWA lawn mower, ensure the fuel tank is filled and the oil level is adequate. Pull the choke lever to the 'on' position if the engine is cold. Hold the operator presence control lever against the handle, then pull the starter cord firmly until the engine starts.
Use SAE 30 oil for temperatures above 40°F (4°C) and SAE 10W-30 for temperatures below 40°F (4°C). Check the oil level before each use to ensure optimal performance.
The mower blade should be sharpened at least once per mowing season, or more frequently if the grass is tough or if there are visible signs of wear and tear on the blade.
If the lawn mower won't start, check the fuel level and ensure fresh fuel is used. Verify that the spark plug is clean and properly connected. Make sure the air filter is clean and the choke is set correctly.
To adjust the cutting height, use the height adjustment levers located on each wheel. Move the levers to the desired position to raise or lower the cutting height. Ensure all four wheels are set to the same height for an even cut.
Excessive vibration may be caused by a damaged blade or loose parts. Inspect the blade for damage and replace if necessary. Tighten any loose bolts and ensure the blade is balanced.
After use, disconnect the spark plug wire for safety. Use a brush or compressed air to remove grass clippings from the undercarriage. Avoid using water as it can cause rust and damage to the engine.
To improve fuel efficiency, regularly maintain your lawn mower by cleaning or replacing the air filter, using fresh fuel, and ensuring the spark plug is in good condition. Additionally, avoid mowing wet grass as it requires more power.
Perform regular maintenance checks before each use, including checking the oil level and ensuring the blade is sharp. Change the oil after every 25 hours of use, and replace the spark plug and air filter once per season.
If the lawn mower stalls, it may be due to old or contaminated fuel, a dirty air filter, or a clogged fuel line. Replace the fuel with fresh gasoline, clean or replace the air filter, and check the fuel line for blockages.