- 1). Drill a 1/2-inch diameter hole in the center of two of the T-couplings. The hole will be in the middle of the top-of-the-T section of the coupling, directly opposite the bottom opening.
- 2). Place a reducer on the bottom opening of both drilled couplings. The hole in the reducer aligns with the drilled hole.
- 3). Insert a 3-inch pipe into the remaining openings on one drilled T-coupling, then place a 45-degree coupling on the end of both pipes. Rotate the couplings so that the T-coupling lies flat on the ground and each angled coupling's open end points up at an angle.
- 4). Insert a 3-inch pipe into the remaining opening on both 45-degree couplings, then place a T-coupling on the open end of each pipe. Rotate the two new T-couplings so their bottom-of-the-T openings point directly in the opposite direction as the drilled coupling's bottom-of-the-T opening.
- 5). Insert a 3-inch coupling into the remaining top-of-the-T opening of both non-drilled couplings in the current assembly, then place a 45-degree coupling on each pipe.
- 6). Put an elbow on both ends of an 18-inch coupling and a 3-inch coupling in the remaining opening of both elbows.
- 7). Press the open end of the 3-inch pipes attached to the elbows into the remaining openings on the last two 45-degree couplings put on the current assemble. The pipes will now be joined to make an angular-D shape.
- 8). Build a matching assembly with the remaining couplings, 3-inch pipes and 18-inch pipes.
- 9). Connect the two assemblies together by inserting a 12-inch pipe into the bottom openings of the two non-drilled T-couplings on one assembly, then pressing the matching openings of the second assembly over the other ends of the two pipes. The two D-shapes now sit 1 foot apart, with their 18-inch tops aligned.
- 10
Drill a 3/16 inch diameter hole through the steel rod approximately 1/4 inches from one end of the rod, and a second hole approximately 1/4 inch from the other end of the rod. - 11
Thread the rod through one reducer and out the T-coupling it is attached to. Then thread across the gap between the two sides and through the other T-coupling and reducer. - 12
Place a washer, a lawnmower wheel and a second washer on both ends of the rod. - 13
Insert the cotter pins through the holes in the rod to hold the wheels in place.
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