Fairbanks 6020 Titan Series - Manual (Page 15)

A. Maintenance Inspections
• Ensure that the system is maintaining proper ground connections
• Check module to module bolts for tightness
• Check that the frame has not shifted, that all bolts are secure
• Check for 'give' or washout under any temporary pier structures
• Check load cells for a level condition
• Examine load cell cables and module interconnect cables for problems
• Ensure that the SSCs and the PPSs covers are secure
B. Load cell Replacement
• Remove power from the system at the instrument
• Jack the scale at the 'bad' load cell location
• Remove the old load cell.
• Apply a small amount of grease to the load cell buttons (top and bottom), then install
the new load cell.
• Gently lower scale assembly ensuring proper placement of load cell.
• Loosen the gland nut, unwire the defective load cell from the SSC, record the wire
color code
• Wire the new cell into SSC, tighten the gland nut around the cable.
• Close the SSC and tighten all screws to 10-12 in.-lbs..
• Reapply power to the instrument
• Check operation, calibrate as necessary
C. Smart Sectional Controller Replacement
• Remove power from the system at the instrument
• Remove cover, disconnect all wiring, noting colors and terminal locations
• Remove screws securing PC board
• Carefully remove prom and insert in new PC board, note DIP switch settings
• Set DIP switches for proper address on new PC board
• Install PCB and secure with all screws
• Connect all wires
• Secure cover with all screws torqued to 10-12 in.-lbs.
• Tighten all gland nuts to secure.
D. Pit Power Supply Replacement
• Remove power from the system at the instrument
• Remove PPS cover and disconnect all wiring
• Remove screws securing power board
• Remove old PCB, secure ground wire to new PCB
• Remake all connections, install the new PCB and secure all screws
• Secure cover with all screws torqued to 10-12 in.-lbs..
• Tighten all gland nuts to secure.
Section 5: Maintenance
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