I have a Husqvarna MZ54 that is due for an oil change on the transaxles. I have the commercial oil change kit in hand and it specifies to add 2 quarts to each transaxle then fill reservoirs, while the husqvarna manual recommends filling to the fill/check port, then filling reservoir. My issue is that on these MZ series, one of the fill plugs(the right I believe) is blocked by idler/tension arm and pulley for the transaxle belt. How are you guys changing your oil? It looks as if I would need to remove the whole arm to get to the fill plug. Any help is greatly appreciated.