Question about Mtd 22" Yard Machine Push Mower

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How to remove and replace rear wheel tire on my mtd self propelled lawn mower model #126-478n134 part #634-0020 tire sized 8 inches.

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Part # 634-0020 is listed for the FRONT wheel. Your post asks about the rear wheel. I was unable to determine if the same part number fits the rear.

FRONT
1) Remove plastic hub cab with a screwdriver around the outer edge.

2) Loosen the shoulder bolt in the center of the wheel (My guess is that you will need a 3/4 inch socket).

3) Leave the bolt and all washers/bushings together and remove the entire wheel assembly as a unit (the bolt serves as the axle).

4) Note the component locations and install the new wheel exactly as the old came off. Do one side at a time to be sure the reassembly is in correct order.

Working from the bolt-head to the mount hole, the assembly should go as follows: Shoulder-Bolt, Wave-Washer, Wheel-Bushing, Wheel, Wheel Bushing, Bell-Cone Washer, Mounting-Hole.

REAR
1) Remove plastic hub cab with a screwdriver around the outer edge.

2) Straighten and remove 1/8 inch cotter pin from center of axle and slide ratchet-spur off the axle while making note of the tooth direction.

3) Slide the remainder of the wheel assembly off the axle.

4) Remove the small shoulder bolt from the ratchet-pawl and note the direction. Remove the ratchet-pawl and ratchet-plate from the wheel. On the inside of the wheel is a "pem-nut" which may need to be held with pliers.

5) Reassemble Ratchet-Plate, Pawl, Pem-Nut, Spur and Cotter Pin in the reverse order.

As was mentioned before, doing one at a time will help keep the parts in the proper order.

Hope this helps!

Posted on Sep 30, 2009

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Posted on Jan 02, 2017

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