Husqvarna manufactures zero-turn lawn mowers, lawnmowers, lawn tractors and thrust cutters. All sitting cutters and some manual machine models are equipped with cutting blade coupling systems that are separate from the engine start-up system. However, it is possible to lose the engine power when the blades are attached. A thorough inspection of your clipper's starting system and conditions can help you find the problem.
Operator presence
Husqvarna lawn mowers, lawn tractors and zero-turn mowers use an operator presence detection switch. This keeps certain functions of the mower from incurring, such as the blade operating system, without the pilot in the correct position. If you leave the seat and the blade is turned on, the mower will turn off. You also have to keep your body completely focused on safety by operating in difficult conditions. Otherwise, the mower will hesitate or cut.
Dirty Bottom surface
Keep your Husqvarna cleaner clean under it or your performance may be affected. Each time the blade is activated, it rotates on a crankshaft to cut the grass. But if there is an interference in this rotation, the motor will overload and turn off or lose power. Check the crankshaft connection to see if it turns freely. Inspect the connection hardware for damage or corrosion. The blade must be free of dirt, grass or debris as well.
Grass Status
If the grass is too high, your Husqvarna cutter may have difficulty cutting it. The blade will try to feed it through, resulting in the loss of engine power. The same can happen if the grass is the average height, but on a slope beyond the recommendations of the operating manual. If you are using a Husqvarna manual machine, try adjusting the wheels if necessary to cut the high grass. Also inspect the straw grass or natural debris before cutting.
Engine oil
Engine oil provides lubrication, cleaning and cooling properties for Husqvarna lawnmower engines. However, the oil cannot be above the capacity in the engine. Any excess oil is spilled from the crankcase into the combustion chamber. If the mower requires additional energy such as during blade coupling, the presence of oil may hinder combustion of fuel vapor. Excess oil will also leak into the exhaust and block it, which restricts the flow of air for combustion.