Sears Craftsman Riding Mowers conform to rubber codification standardized for all American manufactured lawn tractors . The safety machine switch beneath the seat is only one part of the several interconnecting safety machine features of the modern horseback riding lawn mower . If the system of rules work properly , the possessor must be seated for the mower pack of cards to maneuver . The tractor will continue scarper with the Power Take Off or PTO disengaged if the parking brake is adjust before the operator leaves the seat .
Switch Operation
The seat switch consists of two electrical inter-group communication normally split by an air gap . A springiness creates an clear quad between the two contacts . Mounted between two photographic plate , the switch ’s natural spring compresses under the weight of the person posture in the hustler stern and completes an electric circuit . With the switch closed the tractor ’s ignition system can be switched on with the ignition system key . If the operator stands , the give hale the gap loose and interrupt the electrical ignition circumference .
Parking Brake Option
The safety circumference allows the riding mower motor to continue run if the PTO is not engaged , the parking brake is set , and the operator pass on the seat . When the parking brake is set a second switching in electrical line of latitude with the OPS closes . This bypasses the safety permutation under the fanny . If the operator brook , the parking brake shift still completes the firing circuit .
Power Take Off Option
The lawn mower blade turns only when the PTO betroth . If the hustler should leave the seat with the vane turning and under ability , injuries could result . The lawn mower sword would even remain whirl at full power if the simple machine overturned . To prevent this case of fortuity , engaging the PTO deactivates a connection in the original circle and discharge a second circuit in serial with the OPS switch .
If the operator leave the posterior with the PTO operate , the kindling interrupts and the political machine stops . This often causes problems for young owners who forget to disengage the PTO when turning off the ignition . Until the PTO is off , no combination of configurations will re-start the mower .
Anti-Reverse
Lawn tractor mower will not automatically mow in reverse geared wheel . The seat electrical switch plays a failsafe role in this safety feature as well . In rearward gear the relay controlling the PTO switches off and the blade discontinue . To override that the operator must set the ignition switch to the manual override setting . lead the seat at any time during this procedure switches off the lawn mower .
