I am a maintenance specialist working at the Amundsen-Scott South Pole Station and we have a Budgit model BEH0116 Chain Hoist mounted on a Lift-Tech Part# 43950910 Stk# 95E08577 IC Trolley. The trolley is low on lubrication but we do not have a manual that lists which type or weight oil/lubrication to re-fill it with. Where can I find this information and where can I find a service and parts manual for the Lift-Tech trolley?