5/9/2021 0 Comments Skilsaw Model 77 Oil Change
How often is this supposed to be done, what kind of oil do I use, and how do I even do the job Is it just a top-off procedure, or a drain-and-refill like in a car.Both types are configured similarly with a rear handle and a motor parallel to the blade.However, hypoid saws and sidewinder circular saws have sealed bearings and dont require any maintenance.Worm-drive saws have an oil-bath gearbox meant to provide cooling and lubrication to the gears that transfer motor power to the sawblade.
I called both Ridgid and Skilsaw, makers of the two most popular worm drives currently on the market. Both makers said you should change the oil after the first 10 hours of use. Since most cuts take seconds, this is actually a much longer service interval than it would first appear. After the first service, Ridgid says to change the oil every 50 hours, which is likely a lifetime for many users. Skilsaw, maker of the Skilsaw 77 and Mag 77, says you should change the oil every year. The Ridgid has a sight glass to make checking the level and refilling easier. Skilsaws gearbox should be filled to the bottom of the threads on the fill hole. This can be tough to find in small quantities, but I was able to find 4-oz. ![]()
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