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You don't need any machine to degrease the chain and pulley wheels. Buy 1l of mineral spirits and 1l of denatured alcohol from your local hardware store for 4€. Soak the chain in the spirits in a jar, shake it aggressively for 1min, then drain the spirits and repeat 2-3 times until it's all clean. Then soak in the alcohol and voila, clean as can be. Then you can re-wax.