What Type of Grease Does a Weedeater Use?

Grease

• To lubricate the driveshaft, Weed Eater’s website suggests using its shaft lubricant. If you cannot use Weed Eater’s shaft lubricant, other brands of shaft lubricant are available at most home improvement or general merchandise stores.

Curved Shaft

• The curved driveshaft is on the electric and cordless trimmers. To grease the driveshaft on the curved-shaft trimmer, remove the driveshaft’s housing. It is green and located on the bottom of the trimmer. Locate the flex shaft and pull it out of the unit. Use a rag to wipe the flex shaft, then apply a small amount of shaft lubricant to the driveshaft. Return the flex shaft into the unit and reassemble it to the engine.

Straight Shaft

• Gas-powered trimmers have a straight-shaft unit. It is green and on the top of the trimmer. On a straight-shaft trimmer that requires lubrication, remove the screws with a screwdriver from the gear box, then remove the driveshaft. Wipe the shaft clean with a rag. Apply a small amount of the shaft lubricant to the driveshaft. Replace the shaft back into the unit and replace the screws tightly with a screwdriver.

Additional Maintenance

• Along with greasing the driveshaft, maintaining the trimmer’s other parts will extend its life. Change the spark plugs and fuel filter yearly. Every five hours of use, remove the air filter and wash it in warm water with mild detergent. In gas units, use a fuel oil mix ratio of 40 to 1. Weed Eater trimmers are calibrated for 87-octane fuel, and other octane fuels are not recommended. Do not leave fuel in the trimmer when it’s not in use.