We bought the Husqvarna YTH20K46 at Lowes in Fort Smith Arkansas. We also had to purchase a trailer to get the mower home. We brought it home, read the owners manual and were excited about the “first run” on our new pretty orange mower. It started up just fine and it ran good until we engaged the blades for mowing. It seemed very sluggish, like something was too tight and not wanting to mow. It had a slight grinding noise while the PTO blade engage lever was on. The grass was not very tall, as it was still mostly winter grass. The mower ran with speed only once, but then bogged down and ran...