QUARTERLY INSPECTION AND SERVICE ROUTINE
The following are in addition to those previously recommended for the monthly inspection.
Inspect all magnetic contractors and check operation.
Check contractor surfaces for wear or pitting, replace worn parts.
Check control items for weak springs, worn bearings, and replace worn items. Adjust and lubricate the
bearing points with a drop of oil.
Inspect limit switches and test operation. Check contacts and clean and adjust if necessary.
Crane and Carrier Drive Machinery:
Inspect line shaft for loose bearing support bolts.
Inspect couplings and drive wheel hubs for loose keys, bolts or set screws.
Inspect trolleys for loose axles, locknuts, or axle clamp bolts.
Inspect bridge connections to end trucks and tighten if necessary.
Check cross bridge conductors for bends or kinks and loose splices and correct if necessary.
Inspect motor mounting bolts and tighten if necessary.
Miscellaneous Accessory Equipment:
Inspect electrical conductor system for bends and kinks and loose splices and correct if necessary.
Inspect and adjust all limit switches on operating trips, replace any worn or pitted contacts or any other
worn or weak parts.
Inspect cab or special carrier structures for loose bolts or connections. Tighten if required.