This seems like a stupid question, but I'm gonna ask it anyhow. I know where the master cylinder is on the M105 trailer, but my question is how am I expected to fill it? On mine, the master cylinder is only maybe 3-4 inches off the bottom of the bed, hardly enough to get a bottle up to and have a controlled pour. I can check the fluid level by dipping my finger in, so that's not a huge deal, I just can't figure out how the military expected someone to fill the master cylinder if it were low. The TMs just say to fill it...