3-Attachment A.pdf
PDF 196 KB Posted
- Solicitation number
- 26-0225
- Issued by
- Tarrant County, Arlington City, Texas
About this file
This is a Maintenance Tasks attachment document for the City of Fort Worth's RFP 26-0225 for Elevator and Escalator Maintenance and Repair Services. The document outlines comprehensive maintenance requirements for both traction and hydraulic elevators, as well as escalators, to be performed on an "as needed" basis for the Property Management Department and Public Events Department. The scope of work includes detailed preventive maintenance tasks scheduled at four-week, sixteen-week, twenty-six-week, and fifty-two-week intervals, encompassing inspections, cleaning, lubrication, adjustments, and component replacements across multiple elevator systems including the cab, machine room, car top, hoist-way, and pit areas. For escalators, maintenance tasks include upper/lower landing inspections, machine room and pit operations, interior examinations, and exterior component assessments on a four-week interval with specified checks for safety switches, comb and floor plates, step treads, handrails, brakes, chains, and controllers. The document specifies detailed technical requirements aligned with ANSI A17.1 standards, including Fire Service Phase I and II testing on a monthly basis, meg-ohmmeter readings for motor components, brake assembly disassembly and testing, and comprehensive cleaning and repainting at annual intervals.
The document does not contain pricing information, set-aside requirements, incumbent contractor identification, funding sources, or contract award details. All maintenance tasks are presented as technical specifications without associated costs, labor rates, or material pricing. The attachment serves primarily as the scope of work definition for prospective bidders to understand the full extent of maintenance obligations required under the contract. Contractors will be expected to reference these detailed maintenance tasks when developing their proposals and pricing submissions for the City of Fort Worth's elevator and escalator maintenance and repair services contract.
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CITY OF FORT WORTH - PURCHASING DIVISION –
MAINTENANCE TASKS
RFP Ref. #: 26-0225 Doc. Ref#: Attachment A Page 1 of 11 RFP Title: Elevator and Escalator Maintenance and Repair
Traction Elevator Maintenance Tasks
Every Visit: General • Examine any/ all non-functional signal fixture light bulbs and/ or
LED’s from a City generated list.
Every Four (4) Weeks:
Cab
• Check for leveling tripping hazards.
• Check door closing force.
• Inspect position and direction indicators for proper functionality.
• Check the alarm bell for functionality.
• Check the emergency lighting for functionality.
• Check the in-car two-way communication device.
• Clean the door protection device lenses.
• Examine handrails and ceiling panels, replace ceiling fixture light bulbs as necessary.
Machine Room
• Visually inspect all controllers and line starters.
• Examine the governors and lubricate as necessary.
• Thoroughly clean the machine room floor and all controllers.
• Examine the bearings for heat, noises and wear, lubricate as necessary.
• Examine the brushes' wear pattern and commutator for proper glazing and replace brushes as necessary.
• Examine the brake assembly for proper functionality.
• Geared Units: Inspect the oil level in the gearbox and worm gear assembly.
Car Top
• Examine the roller guides for proper tracking and tension, adjust as necessary.
• Examine the roller guides bearings, lubricate as necessary.
• Examine, clean and lubricate the car top sheave.
• Examine the cab steadiers, replace if damaged or worn and adjust as necessary.
• Thoroughly clean the car top and associated equipment.
• Examine the exhaust fan and lubricate if necessary.
• Examine the safety operated switch, leveling devices, tape and/or hitches, repair/adjust as necessary.
• Examine the door operator operation, repair/adjust as needed.
• Examine, thoroughly clean and lubricate the car door rollers, linkages, tracks, up-thrust rollers and relating cables, repair/adjust as necessary.
• Examine the suspension means for wear and proper equalization, repair/adjust as necessary.
RFP Ref. #: 26-0225 Doc. Ref#: Attachment A Page 2 of 11
Hoist-way
• Examine both car and hoist-way: door sills, deflectors and counterweight sheaves, repair/ adjust as necessary.
• Examine the overhead deflector sheave bearings for heat, noises, or wear, lubricate and/ or replace as needed.
Pit
• Examine the door interlock and pick-up roller assemblies and replace any/all missing/worn parts as needed.
• Clean the pit floor and pit equipment.
• Replace pit light bulbs as required.
• Examine the door gibs and door restrictor device and replace any/all missing/worn parts as needed.
General Items • Test Fire Service Phase I & II monthly and log the results in the City’s Fire fighter’s logbook
Every Sixteen (16) Weeks
Machine Room
• Examine the controller’s and motor drive’s relays, solid state electronic boards, transformers, capacitors, etc., repair/ replace as necessary.
• Examine all controller contacts and adjust as needed.
• Examine the main contacting contactors and adjust or replace as needed.
• Check the controller motor overloads.
• Clean the hoist motor brush rigging and commutator.
• Examine the velocity encoder (transducer) connections and coupling device, tighten as needed.
• Examine the position encoder (transducer) connections and coupling device, tighten as needed.
• Clean and lubricate the brake pins and linkages.
Car Top
• Check the roller guides for equalization and adjust if needed.
• Inspect the door operator bearings for noises, heat and wear, lubricate and/or replace as needed.
• Examine the door operator belts, adjust or replace as needed.
• Examine the traveling cables for tracking and wear.
• Examine the suspension means' shackles and springs, repair/replace as necessary.
• Examine terminal limit and slow down switches, adjust and lubricate as required.
• Examine the elevator cab's emergency light, replace any/all inoperative components as needed.
Hoist-way
• Thoroughly examine, clean and lubricate the counterweight sheave bearing.
• Examine all spirators for noise, replace as necessary.
RFP Ref. #: 26-0225 Doc. Ref#: Attachment A Page 3 of 11
• Examine the pickup rollers for freeness and damage, replace as necessary.
Pit
• Examine the governor tail sheave bearing, lubricate as needed.
• Examine the governor tail sheave tensioning and adjust as necessary.
• Examine the pit terminal switches, repair/replace or adjust as needed.
• Examine the level of the oil in the buffer and fill as needed.
Every Twenty- Six (26) Weeks
Cab • Examine the car door gibs and replace as needed.
Machine Room
• Tighten all controller connections.
• Clean the fuses and fuse holder.
• Examine the resistor tubes and replace as needed.
• Examine the controller timers, repair/replace or adjust as necessary.
• Examine the governor for proper operation and adjust/repair as necessary.
• Examine the sheave and its cable grooves for cracks, repair/replace as needed.
Car Top
• Examine the door operator motor's commutator and brushes, repair/replace as needed.
• Examine the door operator's clutch assembly and repair/replace or adjust as needed.
• Examine the suspension means for wear and proper equalization.
• Examine the governor rope for wear and proper equalization.
• Examine the compensation ropes for wear and proper equalization.
• Examine the suspension means, governor and compensation ropes shackles, hitches and "S" hooks and repair/replace as necessary.
Hoist-way
• Examine the overhead deflector cable sheave and its grooves for cracks and repair/ replace as needed.
• Examine the deflector sheaves bearings, lubricate if necessary or replace as needed.
Every Fifty
Cab • Examine the door protection devices for functionality and repair as necessary.
RFP Ref. #: 26-0225 Doc. Ref#: Attachment A Page 4 of 11
Two (52) Weeks
Machine Room
• Tighten all controller terminal block connections.
• Thoroughly clean the controller(s) (relays, solid-state electronic boards, transformers, etc.) free of any/all contaminants.
• Examine and adjust all controller relay contacts.
• Examine the resistor tubes, tighten connections and replace as needed.
• Check the power supply voltages in the controller.
• Comprehensively disassemble the motor-drive assembly, clean the motor-drive assembly, renew worn components if needed, reassemble, readjust and torque as per OEM specifications.
• Perform and record meg-ohmmeter readings for the hoist motor armature and motor fields.
Car Top
• Comprehensively clean the hoist-motor free of any/all contaminants.
• Examine all hoist motor connections and tighten if loose or warm to the touch.
• Examine the hoist machine drive sheave for any wear and/or cracks.
• Change the geared hoist machine's gearbox oil.
• Examine and lubricate the sleeve bearings as necessary.
• Examine and test the governor for proper operation.
• Examine and lubricate the governor roller bearings (if applicable).Comprehensively disassemble the brake assembly; the scope of work should include but not be limited to freeing all the removable pins, removing the brake core assembly, re-greasing the core and plunger piece and removing all paint and/or grease buildup from said brake assembly and its affiliated components. Perform and record in Maintenance Records all required ANSI A17.1 brake-related tests.
• Examine the deflector sheaves and their cable grooves for cracks and repair/replace as needed.
• Thoroughly and professionally clean the machine room floor and paint said floor as needed.
• Examine and lubricate the roller guide bearings, if required.
• Thoroughly clean and lubricate the car top sheave.
• Examine the cab steadiers and adjust if necessary.
• Thoroughly clean the car top and repaint if necessary.
• Examine, thoroughly clean and lubricate the safety linkages, guides and steadiers.
• Examine the switches, leveling devices, tape and hitches and adjust/replace as necessary.
• Thoroughly clean and lubricate, as necessary, the door operating assembly and adjust the tension of the drive belt(s) as needed.
• Tighten all electrical connections including terminals and resistor.
RFP Ref. #: 26-0225 Doc. Ref#: Attachment A Page 5 of 11
• Verify proper door operator switch functionality.
• Examine, thoroughly clean and lubricate the rollers, tracks, up thrust rollers and relating cables.
• Examine the suspension means for wear and proper equalization.
• Examine the governor rope for wear and proper equalization.
• Examine the compensation ropes for wear and proper equalization.
• Examine the suspension means, governor, compensation ropes shackles, hitches and "S" hooks and repair/replace as necessary.
Hoist-way
• Examine the overhead deflector sheave and its cable grooves for cracks and repair/replace as needed.
• Examine the deflector sheaves bearings, lubricate/replace as needed.
• Disassemble the interlock assemblies, renew worn components and readjust accordingly.
• Check the spirators for noise and proper tensioning and replace/readjust accordingly.
• Check pickup roller assemblies for freeness; remove, renew and adjust pickup roller assemblies accordingly.
• Check hoist-way door relating cable assemblies, replace any/all worn components, adjust and/or lubricate accordingly.
• Examine and lubricate the overhead terminal switches and repair/replace as needed.
Pit
• Examine, thoroughly clean and lubricate the car safety devices.
• Examine, thoroughly clean and lubricate the safety linkages and car roller guides.
• Examine the safety-operated switches for full functionality.
• Examine and test the load weighing device(s) for full functionality.
• Thoroughly and professionally clean the pit then paint the pit floor and equipment as needed.
• Examine the pit safety devices (run/stop, compensation, buffer, etc.)
for full functionality.
• Examine the traveling cable hitch and loop and adjust as necessary.
General Items
• Check and test both Fire Service Phase I & II, including the machine room, main floor and alternate floor smoke detector recall systems.
• Check and test the emergency power operation, if applicable.
RFP Ref. #: 26-0225 Doc. Ref#: Attachment A Page 6 of 11
Hydraulic Elevator Maintenance Tasks
Every Four
(4) Weeks:
Cab
• Check for leveling tripping hazards.
• Check door closing force.
• Inspect position and direction indicators for proper functionality.
• Check the alarm bell for functionality.
• Check the emergency lighting for functionality.
• Check the in-car two-way communication device.
• Clean the door protection device lenses.
• Examine handrails and ceiling panels, replace ceiling fixture light bulbs as necessary.
Machine Room
• Visually inspect of all controllers and line starters.
• Clean and inspect the power unit, control, valves, motor and belts.
• Thoroughly clean the machine room floor and all controllers.
• Examine the roller guides for proper tracking and tension, adjust as necessary.
• Examine the roller guides bearings, lubricate as necessary.
• Examine, clean and lubricate the car top sheave.
• Examine the cab steadier's, replace if damaged or worn and adjust as necessary.
• Thoroughly clean the car top and associated equipment.
• Examine the exhaust fan and lubricate if necessary.
Car Top
• Examine the safety-operated switch where provided, leveling devices, tape and/or hitches, repair/adjust as necessary.
• Examine the door operator operation, repair/adjust as needed.
• Examine, thoroughly clean and lubricate the car door rollers, linkages, tracks, up-thrustrollers and relating cables, repair/adjust as necessary.
• Examine the suspension means for wear and proper equalization, repair/adjust as necessary.
Hoist-way
• Examine both car and hoist-way doorsills and clean/repair as necessary.
• Examine the door interlock and pick-up roller assemblies and replace any/all missing/worn parts as needed.
• Examine the door gibs and door restrictor device and replace any/all missing/worn parts as needed.
Pit
• Clean the pit floor and pit equipment.
• Replace pit light bulbs as necessarily required.
RFP Ref. #: 26-0225 Doc. Ref#: Attachment A Page 7 of 11
• Clean and inspect buffers and jack packing; clean the pit and check the travel cable loop.
General Items
• Replace any and/or all signal fixture light bulbs and/or LED's from a City generated list.
• Test Fire Service Phase I & II monthly and log the results in the Owner's Fire Fighter's logbook.
Every Sixteen
(16) Weeks
Machine Room
• Examine power drive (belts and coupling) and pump.
• Examine all controller contacts and adjust as needed.
• Examine the main contacting contactors and adjust/replace as needed.
• Check controller motor-overloads
Car Top
• Check the roller guides for equalization and adjust if needed.
• Examine the door operator bearings for noises, heat and wear, lubricate and/or replace as needed.
• Examine the door operator belts, adjust/replace as needed.
• Examine the traveling cables for tracking and wear.
• Examine the suspension means shackles and springs (if applicable).
• Examine the limit switches, adjust and lubricate as required.
• Examine the elevator cab's emergency light and replace any/all inoperative components as needed.
Hoist-way
• Examine the spirators for noise and replace as needed.
• Examine the pickup rollers for freeness and damage and replace as needed.
Pit • Examine the pit terminal switches, repair/ replace or adjust as needed.
Every Twenty-Six
(26) Weeks
Cab • Examine the car door gibs and replace as needed.
Machine Room
• Tighten all controller connections.
• Clean the fuses and fuse holder.
• Examine the resistor tubes and replace as needed.
• Examine the controller timers, repair/replace or adjust as necessary.
Car Top • Examine the door operator motor's commutator and brushes and repair/replace as needed.
RFP Ref. #: 26-0225 Doc. Ref#: Attachment A Page 8 of 11
Hoist-way
• Examine the door operator's clutch assembly and repair/replace or adjust as needed.
• Examine the suspension means (if applicable) for wear and proper equalization.
• Examine the suspension means' shackles hitches and "S" hooks (if applicable).
• Examine the overhead deflector cable grooves and sheaves for cracks and repair/ replace as needed (if applicable)
Every Fifty- Two (52) Weeks
Cab • Examine the door protection devices for functionality and repair as necessary
Machine Room
• Tighten all controller terminal block connections.
• Thoroughly clean the controller(s) (relays, solid-state electronic boards, transformers, etc.) free of any/all contaminants.
• Examine and adjust as necessary all controller relay contacts.
• Examine the resistor tubes, tighten their connections and replace as needed.
• Check the power supply voltages in the controller.
• Check drive belt tension and adjust the valves as necessary.
• Filter the hydraulic oil.
• Perform and annual valve control adjustment and check logic operation.
• Perform an annual pressure test and lubricate the motor.
• Thoroughly and professionally clean the machine room floor(s) and paint as needed.
Car Top
• Examine and lubricate the roller/slide guides if required.
• Examine the cab steadier's and adjust if necessary.
• Thoroughly clean the car top and repaint if necessary.
• Thoroughly clean and lubricate (as necessary) the door operating assembly and adjust the tension of the drive belt(s) as needed.
• Check and tighten all electrical connections (including terminals and resistor).Check and verify proper door operator switch functionality.
• Examine, thoroughly clean and lubricate the rollers, tracks, up thrust rollers and relating cables.
• Inspect the suspension means (if applicable) for wear and proper equalization.
Hoist-way
• Disassemble the interlock assemblies, renew worn components and readjust as necessary.
• Check the spirators for noise and proper tensioning and replace/readjust accordingly.
RFP Ref. #: 26-0225 Doc. Ref#: Attachment A Page 9 of 11
• Check the pickup roller assemblies for freeness, remove, renew and adjust said pickup roller assemblies accordingly.
• Check hoist-way door relating cable assemblies and adjust and/or lubricate accordingly.
• Examine and lubricate the overhead terminal switches and repair/replace as needed.
Pit
• Examine the traveling cable hitch and loop and adjust as necessary.
• Thoroughly and professionally clean the pit and paint pit floor and equipment as needed.
• Examine the pit safety devices for full functionality.
General Items
• Check and test both Fire Service Phase I & II, including the machine room, main floor and alternate floor smoke detector recall systems.
• Check and test standby battery lowering operation (if applicable).
RFP Ref. #: 26-0225 Doc. Ref#: Attachment A Page 10 of 11
Escalator Maintenance Tasks
Every Four
(4) Weeks:
Upper / Lower Landings
• Check all stop/start and key switches for proper functionality.
• Check both the comb and floor plates for wear and possible tripping/slipping hazards and repair/replace as necessary.
• Check for proper clearance between the step treads and comb teeth.
• Check for bent or broken comb teeth and repair/replace as necessary.
• Check for bent or broken step treads and repair/replace as necessary.
• To ensure proper operation, run the escalator in the reverse direction(if possible)
• Check the handrail brush condition and protective action then clean and/or replace as necessary.
Machine Room / Pit
• Perform a general inspection of the machine, sprockets, worm, gears, motor, brakes, bearings and chain and lubricate as required.
• Examine machine's brake linings for wear and adjust the brake as per OEM tolerances require.
• Examine the oil level in the bull gear oilier and automatic oiler system and then add oil as necessary.
• Perform a general inspection of the controller, contactors, contacts, connectors and terminals and then clean the controller of all contaminants.
• Examine the tachometer and its fasteners/tensioning devices.
Interior • Examine the comb plate lighting and replace any bulbs as needed.
• Lubricate the step chains and wheels as necessary.
Exterior
• Examine for loose screws, breakage and proper illumination on the step treads and repair/replace as necessary.
• Examine the step risers, balustrade and skirt for proper clearances and tripping hazards and repair/replace as necessary.
• Examine the balustrade illumination and replace any inoperative bulbs as needed.
• Examine the overall condition of the handrail (i.e., cracks, splits, pinch points, etc.) and replace if necessary.
• Verify that the handrail has "adequate" tension.
Machine Room / Pit
• Examine the main drive broken chain device, non-reversing switch and emergency brake switch for proper functionality.
• Examine all controller contacts and adjust as needed.
RFP Ref. #: 26-0225 Doc. Ref#: Attachment A Page 11 of 11
• Examine the main contacting contactors and adjust/replace as needed.
• Examine controller motor-overloads.
Interior
• Examine the step chain and step rollers for wear and replace as necessary.
• Examine the settings of both the chain tension device and the broken chain switch to verify that they are set to OEM requirements.
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