How to replace a log splitter flexible pump coupler

Disconnect the spark wire so there's no chance that the log splitter engine could accidentally start.

Using the thin 1/2-inch wrench to keep the hex-head bolts from moving, remove the 3 flange lock nuts from the hex-head bolts that secure the pump to the flexible pump coupler shield.

Pull the pump off of the engine.

Slide the coupling shield off of the hex-head bolts on the side of the engine.

Pull the flexible pump coupler out of the coupler halves.

Clean any residue from the broken flexible pump coupler out of the coupler halves.

Reinstall the coupling shield.

Position the new flexible pump coupler on the pump-side coupler half.

Slide yourself under the coupling shield so you can guide the coupler halves together.

Push the pump onto the hex-head bolts and guide the pump-side coupler half into the engine-side coupler half, rotating the pump-side coupler half to line up the coupler halves.

Reinstall the 3 flange lock nuts on the hex-head bolts to secure the pump on the engine. Tighten the 3 flange lock nuts securely.

Attach the spark plug wire and make sure the log splitter engine works properly.

Start the log splitter and test the operation of the hydraulic pump and the flexible coupler.