I'll try to explain, but there are times when it simply won't "fire'
new starter, new battery, new glow plugs... just seems to bog down. Honestly its weird. We don't get that "cold" here, but cold weather makes things worse. Multiple start attempts wear the battery down, Have had to use a jump...
Weird.... 5 yrs, never had an implement detach unexpectedly...
But, with 2500hrs, having some starting issues. one of the selling points for us was it was supposed to be good , with maintenance, for 5000...
The first definitely is the float feature. Have same switch on our 528... however, it is not functioning. in other words, we didn't purchase that feature. I think of it as a pretend missile launcher.. key point, it does nothing. That is how it was explained to me when we received our unit.