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.
Tip: Use the thin 1/2-inch wrench to hold the hex-head bolts stationary as you reinstall and tighten the 3 flange lock nuts on the base of the hydraulic pump.