100
9.Bridge and Trolley Conductors and Collectors
Annual. Check the contact surfaces of open conductors and collectors for signs of arcing damage, pitting,
and corrosion. Check condition of insulators. Clean as required. Check that festoon type conductor cable
moves freely with bridge and trolley movement. Check the condition of insulation and for kinking in cable.
and corrosion. Check condition of insulators. Clean as required. Check that festoon type conductor cable
moves freely with bridge and trolley movement. Check the condition of insulation and for kinking in cable.
10. Gears, Shafts, Bearings, and Wheels
Monthly. Check lubrication and look for excessive wear.
Annual. Listen for excessive noise or vibration from bearings. If possible, check clearances of journal
bearings. Replace or repair as required. Examine gears for signs of abnormal or excessive wear. Check
lubricant levels and check the oil of enclosed gear cases for metal filings. Check drive shafts and couplings
for signs of misalignment. Check wheels for excessive wear or other damage. Repair or replace as
required.
bearings. Replace or repair as required. Examine gears for signs of abnormal or excessive wear. Check
lubricant levels and check the oil of enclosed gear cases for metal filings. Check drive shafts and couplings
for signs of misalignment. Check wheels for excessive wear or other damage. Repair or replace as
required.
11. Catwalks, Access Ladders, and Handrails
Annual. See that handrails and ladders are firmly secured and rigid. Check catwalks for obstructions,
damaged floorway, or other safety hazards. Walking surfaces of catwalks and ladder landings should be an
antiskid type. Check all steel members for corrosion. Clean and paint as required.
damaged floorway, or other safety hazards. Walking surfaces of catwalks and ladder landings should be an
antiskid type. Check all steel members for corrosion. Clean and paint as required.
12. Cab
Annual. Check cab for loose articles which would interfere with operation and for general housekeeping.
Check for broken windows or doors. Check guard rails and doors. Check bolts and rivets for tightness.
Check welded joints for cracks. Look for corrosion of steel member. Clean and paint as required.
Check for broken windows or doors. Check guard rails and doors. Check bolts and rivets for tightness.
Check welded joints for cracks. Look for corrosion of steel member. Clean and paint as required.
13.Hoist Drums and Sheaves
Monthly. Visually inspect drums and sheaves for cracks or other damage. Check bearings for wear and
proper lubrication. Check grooves of drums and sheaves for wear with sheave gauge. Repair or replace as
required
proper lubrication. Check grooves of drums and sheaves for wear with sheave gauge. Repair or replace as
required
14. Hydraulic Systems
Monthly. Check that pump delivers full pressure. Check piping and cylinder packing for leaks. Check
condition of oil filters. Clean or replace as required.
condition of oil filters. Clean or replace as required.
Not Scheduled. Inspect cylinder walls and piston for scoring and wear. Check condition of pump. Inspect
valve seats for wear. Repair or replace as required.
valve seats for wear. Repair or replace as required.