I'm looking for tips or tricks to keep my steering from locking up due to the freezing temperatures. When first arriving to work the lift starts excellently (I plug in the block warmer). I can usually slowly raise/lower extend/retract the boom. I can also shift into gear and drive forward and backward. However I will not be able to steer. The steering wheel will not budge. Something must be freezing overnight but I have no clue what or how to fix it. Any help would be greatly appreciated.