DescriptionThis video provides step-by-step repair instructions for replacing the governor arm on a Toro snowblower.
All of the information for this video is applicable to the following brands:
Toro
Step-By-Step Instructions1
Toro Snowblower - Model 38752
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Snowblower Governor Arm Replacement
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You will need a 3/8th inch socket, a phillips-head screwdriver, an 8mm socket, a half-inch socket, a 10mm socket, a 10mm wrench and a small flat-head screwdriver for this procedure.
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Make sure the engine has cooled.
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Be sure to perform this procedure with no fuel in the tank.
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Use a 3/8th inch socket to unthread the three mounting bolts securing the chute handle and the chute itself.
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Remove the assembly and detach the handle.
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Using a phillips-head screwdriver, unthread the screw to release the chute ring seal.
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Unthread the two front housing mounting screws.
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Unthread the three screws from the right side of the housing.
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Use the 3/8th inch socket or nut driver to unthread the mounting bolt securing the housing to the rear bracket.
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Unthread the screws to release the two retaining clamps holding the housing to the handle.
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You can now fully remove the housing.
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Use an 8mm socket to unthread the six bolts securing the muffler cover.
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Use a half-inch socket to fully unthread the upper bolts securing the handle assembly.
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Lower the handle to fully remove the muffler cover.
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Detach the primer hose from the carburetor ? be prepared for some fuel to spill.
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Disconnect the wires from the key switch terminals.
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Use a 10mm socket to unthread the nuts securing the control housing.
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Pull the housing off of the mounting bolts.
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Use a 10mm socket to unthread the two nuts and an 8mm socket to unthread the screw securing the side access cover.
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Use the 8mm socket to unthread the two mounting screws securing the trim and fuel tank.
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Unthread the additional screw on the left securing the tank.
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Release the clamp to detach the fuel hose and you can fully remove the tank.
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Note the locations of the governor spring, the throttle return spring, and the throttle rod, then detach them from the governor arm.
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Using a 10mm wrench, loosen the nut and bolt securing the governor arm.
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Note the orientation of the arm and the shaft, then use a small flat-head screwdriver to pry the end of the arm apart to remove it.
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Install the new governor arm by aligning it on the shaft.
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Slide the throttle return spring onto the throttle rod, then insert the appropriate ends of both the rod and the spring into the holes in the governor arm.
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Connect the rod and spring to the appropriate holes in the carburetor throttle lever.
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Hook the long end of the governor spring into the lower hole in the speed control lever and the short end into the appropriate hole in the governor arm.
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To calibrate the arm, pull it back to open the carburetor to full throttle, then use pliers to rotate the governor shaft clockwise until it stops.
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Tighten the nut and bolt to secure the arm.
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Reinstall the fuel tank by first connecting the fuel hose to the port and securing the clamp.
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Reposition the tank and thread the left-side screw.
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Realign the trim and thread the screws.
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Realign the side access cover and thread the screw and nuts to secure.
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Reposition the control housing, then thread and tighten the mounting nuts.
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Connect the wires to the key switch terminals.
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Reattach the primer hose to the carburetor.
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Reposition the muffler cover and thread the six bolts to secure.
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Reposition the handle assembly and rethread the upper bolts.
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Reposition the housing.
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Align the two retaining clamps and thread the screws to secure the housing to the handle.
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Rethread the mounting bolt to secure the housing to the rear bracket.
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Replace the three right-side screws.
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Rethread the two screws securing the front of the housing.
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Reposition the ring seal on the housing so the phillips-head screw hole aligns with the appropriate screw hole in the gear ring, then thread the screw.
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Realign the handle on the chute, then reposition the assembly on the ring seal and thread the three mounting bolts to secure.
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Fill the tank with fuel.
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Congrats! Your snowblower is ready for use.