I have a ProGator 2020. The dump bed is down and I need to raise it to service the engine. The oil has been drained from the engine, so I can't start the engine to raise the bed. How can I raise the dump bed without the engine running? I was considering having someone hold the dump lever in the 'down' position while lifting the bed with the bucket on my tractor. My thinking is the lift cylinder could suck hydraulic oil from the tank as the bed was being raised. Is this a solution or is there a better way?