If you are not wheeling when keep it covered. The sunlight will slowely destory the synthetic line. While I'm wheeling I leave it covered unless I need it but thats just me.
After you use make sure the rope is spooled back on the drum evenly. If it get dirty I would hose it off not that you have to. My synthetic line is 1.5 years old, and I have done the above and it's in good shape.
YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE DUCT TAPE.
IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.