Attachment 12 _ PMI Plan.pdf

REQUEST FOR PROPOSALS

ATL SOLICITATION # 26-002

TRANSIT OPERATIONS AND MAINTENANCE SERVICES

For ATLANTA-REGION TRANSIT LINK AUTHORITY and

GWINNETT COUNTY

ATTACHMENT 12

CONTENTS

Preventive Maintenance Inspection Plan

Preventive Maintenance Inspection (PMI) Plan – This plan outlines scheduled inspections, routine servicing, and detailed component evaluations based on manufacturer recommendations, regulatory requirements, and operational conditions.

The contractor will be responsible for providing a structured maintenance schedule based on mileage and/or time intervals with clearly defined procedures, inspection checklists, and documentation practices. —the plan aims to proactively identify and address potential issues before they lead to costly repairs or service disruptions. The PMI plan includes quality control measures, all structured to maximize vehicle uptime, extend asset life, and comply with Federal Transit Administration (FTA) guidelines and Original Equipment Manufacturer (OEM) standards.

The Maintenance Schedule establishes structured timeline for routine inspections, servicing, and component replacements to ensure optimal vehicle performance and safety. This schedule is developed based on manufacturer (OEM) guidelines, historical maintenance data, and industry best practices, incorporating both time-based and mileage-based intervals. This PMI plan specifies the minimum requirements necessary for compliance, quality assurance, and serving as a baseline for audits, performance assessments, and continuous improvement efforts.

Engine Air intake piping - Check Daily Cooling fans - Check Daily Crankcase breather tube - Check Daily Air tanks and reservoirs - Check Daily Coolant level - Check Daily Fuel/water separator fuel filter - Drain Daily Engine oil level - Check Daily DEF (diesel exhaust fluid) level - Check Daily After-treatment exhaust piping - Check Daily Air cleaner restriction indicator - Check Daily Charge air piping/system - Check Every 3,500 miles or every 250 hours Charge air cooler - Check Every 3,500 miles or every 250 hours Radiator - Inspect for leaks, dirt, debris Every 6,000 miles or every 450 hours Radiator hoses and hose clamps - Check Every 6,000 miles or every 450 hours Surge tank and pressure relief caps - Check Every 6,000 miles or every 450 hours Coolant - Test for replacement limits Every 6,000 miles or every 450 hours Coolant filter - Change (standard filter) Every 500 hours

(ESI filter) Every 4,000 hours Coolant SCA concentration level - Check Every 7,000 miles or every 500 hours Mounting hardware - Check Every 10,000 miles Cooling system - Flush Every 14,000 miles or every 1,000 hours Belt tensioners, automatic - Check Every 15,000 miles or every 1,500 hours Drive belts - Check Every 15,000 miles or every 1,500 hours

Overhead set - Adjust Every 22,000 miles or every 2,000 hours Engine / engine compartment - Steam clean Every 30,000 miles or every 3,000 hours or as needed Vibration damper - Inspect Every 30,000 miles or every 3,000 hours Air compressor discharge lines - Clean

Every 30,000 miles or every 3,000 hours

Engine oil and filter- Change Duty Cycle Dependent Engine brake assembly - Adjust

Every 45,000 miles or every 4,500 hours

Air intake connection - Clean

Every 45,000 miles or every 4,500 hours

Fuel/water separator primary fuel filter - Change

Every 50,000 miles or every 1,500 hours or 18 months

Standard secondary fuel filter - Change.

Every 50,000 miles or every 1,500 hours or 18 months

Engine mounts - Check

Every 60,000 miles

Exhaust Check for exhaust restrictions and leaks Every 12,000 miles Check for loose exhaust fasteners and straps Every 12,000 miles Visually inspect exhaust bellows and alignment

Every 12,000 miles

Remove bellows for complete inspection and realignment

Every 50,000 miles or 1 years whichever comes first

DPF (diesel particulate filter) - Clean Every 50,000 miles or every 5,000 hours

After-treatment DEF dosing unit filter - Change Every 60,000 miles or every 6,500 hours Replace exhaust bellows Every 250,000 miles

Transmission Change main & lube filters Every 75,000 miles, 3,000 hours, or 3 years, whichever comes first Change transmission fluid Every 150,000 miles, 6,000 hours, or 4 years, whichever comes first Inspect transmission mounts Every 60,000 miles

Driveline Lubricate U-joints and slip splines Every 8,000 miles

Check driveline fastener torque Every 24,000 miles Hydraulic System

Check hydraulic fluid level Monthly Replace hydraulic fluid filter element Every 100,000 miles or annually, whichever comes first Replace hydraulic fluid Every 100,000 miles or annually, whichever comes first

Drive Axle Check gear oil in drive axle Every 3,000 miles Change gear oil in drive axle- Conventional oil Every 25,000 miles or annually, whichever comes first Change gear oil in drive axle- Synthetic oil Every 100,000 miles or every 2 years, whichever comes first Inspect seals and gaskets for leaks. Every 6,000 miles Check axle mounting fastener torque Every 24,000 miles Check axle flange nut torque Every 24,000 miles Clean differential breather Every 42,000 miles Inspect wheel end hub bearings Every 100,000 miles or annually

Steering and Front Axle Check wheel end oil Every 1,000 miles Change wheel end oil. First 5,000 miles, then every 30,000 miles Check pitman arm for wear or damage Every 6,000 miles Grease drag link and steering arms Every 10,000 miles Lubricate steering column U-joints and shaft Every 12,000 miles Check steering gear mounting bolt torque Every 12,000 miles Check steering gear mounting plate for damage

Every 12,000 miles

Check tie rod ends for wear and loose nuts Every 12,000 miles Check steering arms for wear or damage Every 12,000 miles Check drag link anti-tilt bushing seal for wear or damage

Every 12,000 miles

Lubricate steering intermediate shaft Every 12,000 miles Check for excessive hub end play Every 15,000 miles or every 6 months Grease behind output shaft dirt-and-water seal .

Every 24,000 miles

Inspect steering shaft seal Every 24,000 miles Change wheel end oil Every 30,000 miles

Brakes Inspect brake air hoses for leaks or damage Every 6,000 miles Check brake chambers for air leaks Every 6,000 miles Check brake shoe lining thickness Every 6,000 miles Lubricate slack adjusters Every 6,000 miles Check slack adjuster operation Every 12,000 miles Perform brake valve preventative maintenance Every 25,000 miles Clean, and inspect brake valve, treadle, plunger boot, and mounting plate

Every 25,000 miles or every 3 months

Lubricate treadle roller, roller pin, and hinge pin

Every 25,000 miles or every 3 months

Apply a thin layer of Barium grease between the plunger and mounting plate, do not over oil

Every 25,000 miles or every 3 months

Lubricate brake cam bushings Every 50,000 miles

Wheels Check wheel stud nut torque First 100 miles, then every 10,000 miles

Rear Suspension Re-torque suspension fasteners First 5,000 miles, then every 50,000 miles Check suspension ride height Every 6,000 miles Check air springs for wear and damage Every 24,000 miles Check shocks and bushings for leaks and wear Check for loose or damaged mounting parts

Every 24,000 miles

Check kneeling system operation Every 24,000 miles Inspect suspension bushings and all suspension components for damage, looseness, and wear or cracks

Every 24,000 mile

Front Suspension Re-torque suspension fasteners Every 24,000 miles Check air springs for wear and damage Every 24,000 miles Check shocks and bushings for leaks and wear

Every 24,000 miles

Check external bump stops for wear and damage

Every 24,000 miles

Check for proper ride height Every 24,000 miles Check for loose or damaged mounting parts Every 24,000 miles Test height control valve operation Every 24,000 miles Test kneeling system operation (if equipped) Every 24,000 miles

Inspect suspension components for damage, looseness, and wear or cracks

Every 50,000 miles

Air System Check air compressor mounting fasteners Every 6,000 miles Check air tank mounting fasteners Every 6,000 miles Inspect air lines for cuts, swelling, kinks, pinching, melted, chafing, deterioration, or any damage

Every 6,000 miles

Inspect for loose or missing retaining clips, ties, grommets, and supporting parts to prevent excess vibration which could loosen or damage connections

Every 6,000 miles

Check that supports and brackets are in good condition and that clamps have not deteriorated

Every 6,000 miles

Perform brake valve preventative maintenance Every 25,000 miles Inspect air compressor lines Every 42,000 miles Check compressor discharge and inlet for carbon

Every 42,000 miles

Check compressor operation Every 42,000 miles Check all air lines and fittings for leaks Every 42,000 miles Test governor operation and check for leakage Every 50,000 miles Disassemble and clean PPV's Every 50,000 miles Disassemble, clean, inspect single check valves

Every 50,000 miles

Rebuild PP-1 parking brake valve Every 50,000 miles Rebuild QR-1, SR-1, R-12DC, R-14, double check valves

Every 100,000 miles

Rebuild air compressor Every 200,000 miles

Air Dryer Drain reservoirs, if oil or moisture is present, perform functionality tests

Every 30 days

Test air dryer operation and check for leaks. Every 25,000 miles Check air dryer mounting fasteners Every 25,000 miles Rebuild using OEM kit Every 14-18 months Check condition of safety valve, replace as needed

Every two years or as needed

Check continuity of heater with an ohmmeter, replace if no continuity is present

Every two years or as needed

Drain reservoirs, if oil or moisture is present, perform functionality tests

Every 30 days

Test air dryer operation and check for leaks Every 25,000 miles

Electrical - Batteries Check cables, hold downs, and boots Every 6,000 miles Check open circuit voltage with DMM & service any that are low (<12.4 VDC) & check system

Every 6,000 miles

Clean batteries of dirt and acid Every 6,000 miles Inspect for bulging case, damaged terminals... Every 6,000 miles Check battery electrolyte level and connection torques

Every 12,000 miles

Test conductance with Medtronic tester per manufacturer's procedures

Every 12,000 miles

Check voltage regulator settings Every 24,000 miles Electrical- Electric Cooling System Fan

Inspect fan blades and radiator core for debris Daily Inspect protective caps and retaining rings Every 6 months Inspect power and ground cables for corrosion or damage

Every 6 months

Electrical- Starter Inspect cables for damage or corrosion Every 6,000 miles Check torque on cables and re-torque as necessary

Every 36,000 miles

Inspect bolts, cable support clamp, and brushes

Every 36,000 miles

Inspect solenoid cap for cracks/damage Every 36,000 miles Check starter engagement protection circuit Every 36,000 miles Check pinion teeth for damage Every 120,000 miles Service starting motor Every 120,000 miles

Electrical- Alternator Inspect cables for damage or corrosion Every 6,000 miles Inspect support brackets at alternator, and torque bolts

Every 6,000 miles

Check alternator for dirt buildup and grime Every 6,000 miles Change bearings and complete teardown check

Engine overhaul

Electrical- Rear Main Fuse Panel Inspect cables for damage or corrosion Every 6,000 miles If cables exhibit damage or corrosion, remove cables, repair and replace cables as required, reapply Kopr-Shield and re-torque cables

Every 6,000 miles

Check torque on all connections Every 6,000 miles

Fuses should not be removed unless blown or improperly seated

Every 6,000 miles

Electrical- A/C Heater Unit Inspect power and ground cables, and all electrical connections inside of return air

Every 6,000 miles

Check torque on cables and re-torque as necessary

Every 6,000 miles

If cables exhibit damage or corrosion, remove cables, repair and replace cables as required, reapply Kopr-Shield and re-torque cables

Every 6,000 miles

Electrical- Chassis and Engine Harnesses/Cables Inspect for dirt and salt buildup in chassis and clean

Every 12,000 miles

Check clamps, chafing

Every 12,000 miles

Inspect for heat damage around hot areas, such as the turbo, muffler, etc

Every 12,000 miles

Clean ground connections Every 36,000 miles Check torque on cables and re-torque as necessary

Every 36,000 miles

Electrical- Battery Equalizer Inspect for dirt, damage or corrosion Every 6,000 miles If cables exhibit damage or corrosion, remove cables, repair and replace cables as required, reapply Kopr-Shield and re-torque cables

Every 6,000 miles

Check torque on cables and re-torque as necessary

Every 6,000 miles

Electrical- Main Disconnect Switch Inspect for dirt, damage or corrosion Every 6,000 miles If cables exhibit damage or corrosion, remove cables, repair and replace cables as required, reapply Kopr-Shield and re-torque cables

Every 6,000 miles

Check micro-switch for function (if equipped) Every 6,000 miles Check battery switch for function and for continuity in open and close

Every 6,000 miles

Electrical- Front Main Fuse Box Inspect cables for damage or corrosion

If cables exhibit damage or corrosion, remove cables, repair and replace cables as required, reapply Kopr-Shield and re-torque cables

Check torque on all connections Every 6,000 miles

Fuses should not be removed unless blown or improperly seated

Every 6,000 miles

Electrical- Rear Main I/O panel Inspect power and ground cables, fuses, and circuit breakers

Every 6,000 miles

If cables exhibit damage or corrosion, remove cables, repair and replace cables as required and re-torque cables

Every 6,000 miles

Check torque on cables and re-torque as necessary

Every 36,000 miles

Electrical- Front Main I/O panel Inspect power and ground cables, fuses, and circuit breakers

Every 6,000 miles

If cables exhibit damage or corrosion, remove cables, repair and replace cables as required and re-torque cables

Every 6,000 miles

Check torque on cables and re-torque as necessary

Every 36,000 miles

Electrical- Exit Door I/O Panel Inspect circuit breakers Every 6,000 miles

Electrical- Front Console Panel Inspect power and ground cables, fuses, and circuit breakers

Every 6,000 miles

Electrical- Driver's Heater / Fans / Booster Fan Inspect power and ground cables, switches, fuses, and circuit breakers

Every 60,000 miles

Inspect/replace brushes if equipped Every 80,000 miles Electrical- Ceiling Harnesses

Check clamps, chafing, lamp sockets, ballast, etc

Every 60,000 miles

Electrical- Console and Dash Check clamps, chafing, lamp sockets, switches, etc

Every 60,000 miles

Body and Chassis Lubricate wiper arm pivot posts Every 6,000 miles Inspect body for fluid leaks Every 6,000 miles Wash underbody/engine compartment and inspect for damage and corrosion.

Every 12,000 miles or as needed

Inspect fenders and splash aprons. Every 24,000 miles Check wiper arm adjustment Every 24,000 miles Inspect welds on frame, brackets, etc. Every 30,000 miles

Check bumper mounting fastener torque. Every 42,000 miles Check floor covering seam sealing Every year Reseal floor covering Every 3 years or as needed

Doors Check door panel alignment Every 6,000 miles Inspect door seals for leaks or damage Every 6,000 miles Inspect door sensitive edge Every 6,000 miles Test emergency door release mechanisms Every 12,000 miles Check door motor and base plate fasteners Every 18,000 miles Inspect lower door shaft pivot bearings - Check for excessive

Every 250,000 miles radial play (>0.06 inch) of pivot bearing within door shaft

Every 250,000 miles

Wheelchair Ramp Clean ramp platform surface As needed and every 6,000 miles Clean rising floor surface As needed and every 6,000 miles Clean drive platform assembly (under the rising floor)

As needed and every 6,000 miles

Check ramp platform surfaces (both sides) Every 6,000 miles Check rising floor surface Every 6,000 miles Check curb-side lugs, bearings, and curb-side rollers

Every 6,000 miles

Check chain/counterbalance assembly Every 6,000 miles Check drive train, sprockets, and couplings Every 6,000 miles Check stow latch mechanism and solenoid linkage

Every 6,000 miles

Check stow limit switch Every 6,000 miles Check all electrical cables Every 6,000 miles Check structural integrity of frame and ramp assembly

Every 6,000 miles

Clean and lubricate drive chain and chain/counterbalance assy

Every 6,000 miles

Lubricate stow latch bushings with thin coating of anti-seize.

Every 6,000 miles

Check for rust Every 6,000 miles Wheelchair Lift

Ensure all system covers, instruction information and placards are in place and good condition

Inspect hydraulic lines for leaks and proper routing

Every 6,000 miles

Inspect all Q straints, ensure E-Track bolts are tight. 8 Q-straint must be in vehicle

Every 6,000 miles

Ensure pump handle is in place/good condition.

Every 6,000 miles

Ensure jump seat is in good condition, wheelchair clamps are in good condition

Every 6,000 miles

Check reservoir fluid level Every 6,000 miles Ensure all lights are operational Every 6,000 miles Ensure all lift safety features are functioning properly ( example: lift will not operate with door closed)

Every 6,000 miles

Check for smooth lift operation, lift clears door, lift must be level with the floor and no excessive gaps

Every 6,000 miles

Ensure all lift handrails are in place and securely mounted

Every 6,000 miles

Inspect lift unit for stress cracks, proper mounting and alignment

Every 6,000 miles

Verify that lift towers and barrier operates properly

Air Conditioning Check refrigerant charge Every 6,000 miles Visually inspect refrigerant hoses & tubing Every 6,000 miles Visually inspect for refrigerant or oil leaks Every 6,000 miles Check dry eyes in bottom receiver sight glass and/or liquid line sight glass for moisture

Every 6,000 miles

Visually inspect clutch armature for wear Every 6,000 miles Inspect compressor drive belt & check tension Every 6,000 miles Check compressor oil level & color Every 6,000 miles Visually inspect unit for loose, damaged, or broken parts

Every 6,000 miles

Clean or replace return air filter Every 6,000 miles or every 3 Months, whichever comes first

Inspect condenser & evap coils for cleanliness

Every 6,000 miles

Install service gauge manifold set & check system pressures, temperatures, & suction line

Every 18,000 miles

Check clutch air gap (X426, X430 only). Every 18,000 miles

Check evap/heater blower & condenser fan motor speed, voltage, & amps

Every 24,000 miles

Lubricate evaporator fan shaft bearings Every 24,000 miles Inspect evap/heater blower & condenser fan motor brushes, commutator, bearings

Every 24,000 miles

Check EPR valve operation Every 48,000 miles Replace liquid line dehydrator Every 48,000 miles Check hot water control valve (if installed) Every 48,000 miles Steam clean compressor & clutch Every 48,000 miles Check clutch coil resistance & voltage Every 48,000 miles Lubricate clutch bushing Every 48,000 miles Check high & low pressure cutouts Every 48,000 miles Check compressor oil for acidity Every 48,000 miles Check compressor efficiency Every 48,000 miles Check compressor oil pump pressure Every 48,000 miles Check thermostat cycle sequence on all modes

Every 48,000 miles

Clean control panel area & return air sensor with compressed air

Every 48,000 miles

Check heater booster pump motor operation Every 48,000 miles Inspect wires/terminals for damage/corrosion Every 48,000 miles Check condenser pressure switch/condenser motor hi/low speed operation (if equipped)

Every 48,000 miles

Check freeze thermostat (if equipped) Every 48,000 miles Clean condenser/evaporator drains & check drain hose check valves

Every 48,000 miles

Visually inspect engine coolant hose & hose clamp on heater coil system

Every 48,000 miles

Clean condenser & evaporator coils Every 48,000 miles Check engine coolant for antifreeze protection down to 30° to prevent heater coil freeze

Every 48,000 miles lighten compressor, A/C unit, & fan motor mounting hardware

Every 48,000 miles

Check condenser air seals & air deflector (if installed)

Every 48,000 miles

Check evaporator blower shaft coupling adjustment/alignment (if installed)*

Every 48,000 miles

Replace booster pump bearings Every 6 years

Farebox Clean magnetic swipe utilizing four swipes with cleaning card

Every 30 days

Clean token and coin cup with sponge and isopropyl alcohol

Every 30 days

Clean trim unit ticket path with four passes of cleaning card

Every 30 days

Clean exterior of farebox with stainless steel cleaner ( Do not spray top of the farebox)

Every 30 days

Inspect wiring harness under coach for proper routing and damage

Every 30 days

Perform full function test of farebox Every 30 days Clean OCU with mild detergent Every 90 days Clean passenger display with soft damp cloth Clean coin validator externally with a damp cloth and mild detergent, internally utilize compressed air or Isopropyl alcohol

Every 90 days

Clean coin validator solenoid with cotton swab and Isopropyl alcohol

Every 90 days

Clean Coin/Token cup with all purpose cleaner

Every 90 days

Bill validator clean with mild detergent on a damp cloth externally and internally clean with compressed air

Every 90 days

Bill transport O-rings clean with mild detergent.

Every 90 days

Inspect Bill transport pulleys and belts for wear replace as needed

Every 90 days

Inspect Cash lock mechanism repair as needed

Every 90 days

Inspect Trim unit drive belt for wear Every 90 days Inspect and clean Trim unit drive belt roller Every 90 days Inspect and clean all black rollers Every 90 days Inspect and clean optical sensors on the Trim unit

Every 90 days

Lubricate Bill Transport idler post Every 180 days Lubricate 20 tooth spur drive Every 180 days Clean and lubricate Cashbox slide, coin stripper, and bill stripper. Clean using mild detergent

Every 180 days

Lubricate locking bar Every 180 days Lubricate electronic lock Every 180 days Inspect clean and lubricate Coin Bypass mechanism

Every 180 days

Clean and inspect magnetic heads on Trim unit

Every 180 days

Clean and inspect print head on Trim unit Every 180 days Inspect and clean Trim unit solenoids Every 180 days Clean and inspect Trim unit Gears Every 180 days Clean and inspect Trim unit Edge guides Every 180 days Clean and inspect Trim unit drive belt replace if necessary

Every 180 days

Clean and inspect drive pulleys Every 180 days Inspect Ticket cassette adjust stripper gap if necessary

Every 180 days

Inspect bearings, bushings, and motor for proper operation

Every 180 days

Replace cashbox ID and Trim unit battery

Every 3 years

Replace coin bypass spring Every 3 years

Destination Sign Inspect both front and side signs for proper operation

Every 6 months

Check driver display and control unit for proper operation

Every 6 months

Clean inside of destination sign glass Every 6 months Check all cables and wiring for wear, fraying, and proper clamp and routing

Every 6 months

Run test sign code and four other run codes to determine proper operation

Every 6 months

Check sign door for proper fit. Every 6 months Check all latches for proper adjustment and damage

Every 6 months

Inspect all hinges for possible defect Every 6 months Inspect sign housing for damage, cracks, loose mounting hardware

Every 6 months

Check destination sign lighting for proper operation.

Every 6 months

Clean all trash, dust, and debris from sign compartment

Every 6 months