How do you change a drive-belt on stx38 John Deere lawnmower?
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Changing a JD STX38 tranny drive belt.

Today I undertook removing my almost failed transmission drive belt on a John Deere STX38. In order to do so (it had come off both the engine pully and the transmission pully but was not broken), I had to unbolt the brake pedal lock pin, and disconnect the front wheel steering bars (cotter pin and washer holding each bar to the front wheel axels). The belt then could be removed as the steering arms pass under the belt when it is in place, and the bars are attached by cotter pin and washer, one set at the wheels, and another set at the steering arms in the middle of the chassis. There is one idler pully in a v shape and another idler pully that is flattened between the transmission and the steering arms. The back of the belt pushes against the flattened pully, and the inside (v side) of the belt passes the v shapped pully as these 2 pullies provide belt tension. I hope that helps.



A bit of added information that might help: You can see the entire John Deere Manual on the STX38 if you go to the site below and insert
STX38 without the hyphen.

jdpc.deere.com/jdpc/servlet/com.deere.u90490.partscatalog.view.
servlets.H

It's a bit long but it works!!!



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First answer by ID1262746382. Last edit by Lopaka39. Contributor trust: 10 [recommend contributor]. Question popularity: 51 [recommend question]

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