DescriptionThis video provides step-by-step repair instructions for replacing the brake assembly on a Briggs and Stratton small engine. The most common reason for replacing the brake is when the blades won’t stop immediately when the bail arm is released.
All of the information for this brake assembly replacement video is applicable to the following brands:
Briggs & Stratton, Toro, John Deere, Lawn Boy
Tools needed: Phillips-head screwdriver, 5/16th inch socket or nut driver, 3/8th inch socket or nut driver, pliers
Step-By-Step Instructions1
Before you replace the brake assembly on your engine first make sure the engine has cooled.
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Next, you should remove the wire and boot from the spark plug to prevent the engine from accidentally starting.
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We recommend performing this procedure with little or no fuel in the tank.
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Use a phillips-head screwdriver to unthread the mounting screws securing the engine cover.
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Next, release the starter rope from the retainer.
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Now use a 5/16th inch socket or nut driver to remove the screws securing the fuel tank.
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Use a 3/8th inch socket to remove the mounting bolt securing the tank to the side of the engine block.
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Remove the 3/8th inch bolts securing the blower housing.
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Pull off the blower housing and oil dipstick tube.
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Now depress the bail arm to release the brake and use a spring clamp to hold it in place.
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Press down on the tab to release the grounding wire from the brake bracket.
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Use the 5/16th inch socket or nut driver to remove the screws securing the bracket.
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Now remove the spring clamp to release the bail arm.
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Use pliers to squeeze the tabs to release the control cable from the bracket then unhook the z-end.
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Install the new brake assembly by positioning it on the engine housing.
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Thread and tighten the mounting screws to secure.
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With the assembly in place, remove the tension lock arm from the new component.
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Insert the z-end of the control cable into the bracket and snap the cable into place.
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Reconnect the grounding wire.
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Replace the blower housing making sure the attached dipstick tube is inserted into the sump.
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Thread the mounting bolts to secure and torque them to seven-and-a-half foot pounds.
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Confirm that the spacer is in place on the fuel tank then reposition the tank on the blower housing.
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Replace the bolt and mounting screws to secure.
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Realign the engine cover.
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Rethread and tighten the mounting screws.
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Depress the bail arm, extend the starter rope and secure it in the retainer.
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With the repair completed reattach the wire and boot to the spark plug refill the fuel tank and your engine should be ready for use.