Classen Over Seeder TS20HD 2012 Drive Pulley Replacement

Geschrieben von: Arthur Shi
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Classen Over Seeder TS20HD 2012 Drive Pulley Replacement

Schwierigkeitsgrad

Moderate

Schritte

15

Zeitaufwand

10 - 40 Minuten

Einleitung

This guide shows how to remove and replace the drive pulley.

Note: The pulley can be hard to remove and requires a suitably sized gear puller to extract it.

Note: The pulley bolt may be heavily seized on with thread-lock. You may need to use a blowtorch to heat up the bolt in order to soften the thread-lock.

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    • Before you begin, ensure that the machine is powered down and cool to the touch.

    • Disconnect the spark plug to prevent the engine from accidentally starting up during service:

    • Grab the plastic housing at the end of the spark plug wire.

    • Pull firmly to disconnect the wire from the spark plug.

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    • To prevent the over seeder from rolling during service, place wheel chocks behind a rear wheel.

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    • Push down on the main handle to tilt the over seeder back on its rear wheels.

    • Place some weights on the handle, or tie the handle down, to prevent the machine from falling forward.

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    • Place a wheel chock in front of a rear tire to keep the machine in place.

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    • Remove the four lock nuts securing the belt guard:

    • Two 1/2" lock nuts

    • Two 7/16" lock nuts

    • These lock nuts are recessed and require a socket extension to access.

    • Use box wrenches to hold the corresponding bolts in place as you loosen and remove the nuts.

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    • Remove the belt guard.

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    • Use your fingers to pry the belt off the drive pulley.

    • If you are having trouble, make sure that the machine is not resting on the bail bar up by the handlebars, which tightens the idler pulley.

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    • Squeeze the belt and unhook it from the engine pulley.

    • Remove the rake belt.

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    • Place a block of wood to jam the blades so they don't rotate forward, allowing you to unscrew the pulley bolt.

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    • Use a 7/16" socket and socket wrench to remove the center pulley bolt.

    • The bolt can be heavily thread-locked in place, and the bolt head can shear off easily. To prevent breakage, use a torch and heat the bolt for two minutes to weaken the thread-lock.

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    • Remove the bolt, along with the pulley retainer washer and crush washer.

    • Re-assembly tip: Replace the crush washer with a new one and apply red thread-locker to the bolt threads.

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    • Use a 5/16" box wrench to loosen the two set screws.

    • You don't need to remove the set screws completely—two full turns sufficiently loosens each set screw.

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    • Your pulley may be loose enough to remove by hand. If not, follow this step to use the gear puller to remove the pulley.

    • Attach a gear puller to the pulley.

    • If your gear puller's center pin is too thick for the pulley, use a 1/2" socket as a buffer.

    • Crank on the gear puller with a wrench to remove the pulley.

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    • Remove the drive pulley.

    • Remove the square axle key.

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    • Re-assembly tips:

    • Lubricate the axle and key with machine oil.

    • Set the square key in the pulley first, then align the pulley onto the axle. This makes it slightly easier to hammer the pulley in place.

    • Hammer the pulley in place with a rubber mallet.

    • Before you tighten the set screws, make sure that the drive pulley's belt path aligns with the idler pulley.

Abschluss

To reassemble your device, follow these instructions in reverse order.

Tinte & Feder

Arthur Shi

Mitglied seit: 03/01/18

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