We’re elbows deep in Summer weather and even if you did everything we suggested in the Spring to prep for Summer, you still need to follow up because hot weather is very, very tough on mechanical engines and forklifts are no different.
Start with the battery. Sure, you check it at the start of every shift but take a minute or two and really check it out. Hot Summer weather can result in excess corrosion and severely reduce your fluid levels. Check your battery cells and make sure the fluid hasn’t evaporated away. It happens before you know it. Refill if necessary (checking for the proper pH).