Called half moon wrenches and yes you will still need to get the bucket arms up and out of your way, backhoe, another loader, a wrecker and release the controls so the hydraulics will allow the lift. Most better name tool dealers: MAC, Snap On, others will have "Starter" wrenches, I have a full set from decades ago purchase. If has six point standard Gr8 bolts go to a heavy engine dealer and buy the twelve point replacements or go to a reputable bolt distributor as Fastenal and order or buy twelve point "Space Saver" head bolts.