Question about Craftsman 21 HP 42 in. Zero Turn Tractor Mower - CA Model
You'll be working underneath the mower, so it is helpful to raise the mower chassis up -- at least in back. Use your automobile jack, then put jackstands underneath the chassis to do this. Take off the deck drive belt first by releasing the idler spring(s). Unbolt and remove the "anchor" that keeps the PTO clutch from rotating. Disconnect the electrical wires leading to the PTO. Release the tension on the idler for the hydrostatic drive belt. Now you can thread the new hydrostatic belt over the engine pulley and around both wheel motor pulleys. The idler pulley presses it inward to provide tension. Refasten the idler spring - a pair of channellock pliers works well to hold and pull the spring. Now reinstall the wires and the PTO anchor, then the mower deck belt. Good luck! Please rate my answer if helpful, thanks!
Posted on Jul 03, 2010
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Posted on Jan 02, 2017
I'm having the same problem, except mine is not hydrostatic. A 1996 craftman tractor 15.5 briggs 42 ' deck. About to start pulling out my hair!!! Just put on a new drive belt and still no movement.
Posted on Jun 07, 2009
Sometimes there is a diagram under the left foot rest on the under side of the metal showing the motion drive belt placement. you have to lay down and look up to see it
Posted on Apr 27, 2010
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