Introduction
Follow this guide to replace the lower V-belt on a 2018 Classen Sod Cutter model HSC18AHD.
Tools
Parts
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            Grab the plastic housing at the end of the spark plug wire. 
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            Pull firmly to disconnect the wire from the spark plug. 
 
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            Use a 1/2 inch socket to remove the first two bolts from the belt shield. 
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            Use a 1/2 inch socket to remove the third bolt from the belt shield. 
 
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            Use a 9/16 inch socket to loosen the nut securing the idler pulley until the pulley can freely move up and down the bracket. 
 
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            Use your fingers to roll the belt. If you cannot twist the belt more than a quarter turn, the belt is sufficiently tensioned. If the belt is too loose, set the idler pulley lower to tension the belt more. 
 
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            Move the cutter blade handle back to disengage the blade drive and relieve tension on the V-belt. 
 
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To reassemble your device, follow these instructions in reverse order.