Flat Idler for Exmark Lazer Z mowers 109-8590, 116-9639 Mowers 280-737

Q: What are some of the most popular Lawn Mower Parts needed to maintain a dependable starting mower, and get razor sharp cut results every mow?
A: To maintain a dependable and efficient lawn mower with a razor-sharp cutting performance, it’s essential to keep various parts in good condition. Here are some of the most important lawn mower parts to focus on:

1. Air Filter and Spark Plug:
   Regularly clean or replace the air filter for optimal air intake, and replace the spark plug to ensure efficient combustion.
2. Blade Maintenance:
   Keep the mower blade sharp for a clean cut, avoiding tearing grass. Sharpen or replace the blade as needed.
3. Oil and Fuel System:
   Change the oil regularly to maintain engine lubrication and clean the fuel filter and lines to ensure a consistent fuel supply.
4. Deck and Wheels:
   Clean the mower deck to prevent debris buildup and inspect wheels for proper height adjustment and lubricate if necessary.
5. Battery and General Checks:
   Regularly check and maintain components such as drive belts, controls, exhaust system, and tire pressure.

Q: Is a clean air filter really that important?
A: Yes! A clean air filter is essential for maintaining a dependable and efficient lawn mower. It not only protects the engine from damage but also contributes to fuel efficiency, extended engine life, and overall better mower performance. It’s advisable to follow the manufacturer’s recommendations for air filter maintenance, including regular cleaning or replacement.
Q: How often do I need to change my spark plugs?
A: Inspect the mower blade annually and replace it if worn, damaged, or dull. Consider more frequent replacement for intense usage or challenging conditions. Sharpening is an option, but eventual replacement is necessary. Looking at your lawn is a great way to judge the condition of your blades. If it looks cleanly cut, then the blades are going their job. But if the grass looks scalped or choppy, it’s time for a blade sharpening or replacement.
Q: What is the number one cause of premature belt wear?
A: The significant cause of premature belt wear in lawn mowers is excessive tension or improper adjustment. When a mower’s drive belt is too tight, it can lead to increased friction, heat, and accelerated wear. Additionally, misalignment or issues with pulleys and other components can contribute to premature belt wear. Finally, mowing the deck too low so that blades scuff or rub against the ground address stress to belts. Regularly inspect and adjust belt tension according to the manufacturer’s guidelines to ensure optimal performance and longevity.
Q: When to replace my belt?
A: Replace your lawn mower belt when you observe visible wear like cracks or fraying, notice significant slack or slipping during operation, hear unusual noises, experience inconsistent cutting, or as per the manufacturer’s recommended maintenance schedule. Regular inspection and prompt replacement help prevent unexpected failures and ensure efficient mower performance.
Q: What do I need to know about my belt tensioner?
A: Make sure the belt tensioner is greased and free to move. If not, the belt will be too loose and slip, or too tight and then stretch and rip. When you grab the belt and pull on it, the tensioner spring and idler pulley should move the same amount. If it will not move or it is stuck, it must be serviced.
Q: Can a PTO clutch be adjusted?
A: Yes, some PTO clutches can be adjusted. As always though refer to the OEM’s specific service and adjustment procedures manual to know if your mower has an adjustable PTO. All this information can be found in your OEM’s service maintenance or owner’s manual and can vary from Make, Model, and Serial Number. An important note: Sometimes even the date it was produced can influence the design of the PTO clutch within the same serial number!