Controller
3-3
element
TM
Series
Every Six Months
Controller General
•Monthly routine
• Clean and inspect drive cooling fan. Verify proper operation.
• With car idle and empty, cycle power to rope gripper and observe operation.
• If available, check drive fault log. Troubleshoot per drive manual.
• Verify connection integrity on drives, starters, line contactors, and discrete relays.
• While the car is operating, check for “flashing” or buzzing from contactors or discrete
relays. Replace defective components.
Air Conditioned Cabinets
•Monthly routine
• Replace filters.
Load Weighers
•Monthly routine
• EMCO rope tension weigher: Perform zero calibration per controller manual.
• K-Tech: Verify load adjustments per controller manual.
Lead/Acid Batteries
•Monthly routine
Car
•Monthly routine
Landing System
• Check mounting integrity and alignment.
• Check for wear on sensor head tape guides. Replace if needed.
• Visually inspect sensors. Clean if needed.
• Inspect tape. Clean with soft, lint-free cloth.
Power Supplies
• Check supply voltages at supply or at board testpoints. Adjust or replace if needed.
Brake
• Verify brake pick and hold voltage.
• Verify pick, running clearance, and drop.
• Verify minimum 95% contact between shoe and braking surface when dropped.
• Verify brake will hold 125% of rated load.
• Verify brake (position monitor) switch if present.
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