Lawn mower repair services require mechanics skilled in dealing with small engines. Repairing and cleaning carburetors is common, as is replacing belt drives. As mowers have two stroke carburetors, their engines are a little different to maintain than car engines, but not excessively so. Ride on and tractor style mowers often have diesel engines. Small hand propelled ones are usually electric. Ride on mowers also generally have push button ignition, whilst smaller ones may have a string pull. The latter are known to break, often at inconvenient times, and need to be replaced.
Mechanics also need to know how to fix attachments such as sprayers and aerators. Thorough cleaning is another important part of maintenance, especially of the mower deck.
The second major area is the sharpening of blades. Services often also sharpen pruners, tree and bush trimmers and other garden tools. Edge trimmers and some small rotary trimmers have cables or strings instead of blades, which are generally replaced. Heavy duty mowers designed to deal with tough weeds have thicker and more powerful blades. The best mowers are of the cylinder type. Due to the variety of mowers for different sizes of yard and outdoor area, sharpeners have to be ready to deal with different sizes and thicknesses of blade. They need to keep parts on hand for various mowers and other equipment. In some cases, they may even be called upon to replace or repair seats. Automatic or self driving mowers require a certain amount of computer knowledge.
Mower repair services are often attached to dealers or garden centers. Those attached to dealers may specialize in a specific brand of mower. Others are more independent.