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Preventive Maintenance Schedule

Automobiles, Vans, Utility Vehicles and Light Trucks

  1. Level A Every 5,000 miles
  2. Level B Every 10,000 miles
  3. Level C Every 30,000 miles

Recommended: 5,000 mile maintenance schedule - A1, B1, A2, B2, A3, A4 & C

Sheriff Patrol Vehicles (Marked)

  • Level A Every 3,000 miles
  • Level B Every 6,000 miles
  • Level C Every 30,000 miles

Recommended: 3,000 mile maintenance schedule - A1, B1, A2, B2, A3 & C

Heavy Trucks* and Buse

  • Level A Every 5,000 miles
  • Level B Every 10,000 miles
  • Level C Every 30,000 miles
  • DOT Annually or every 25,000 miles

Heavy Equipment*

  • New Fleet Pieces 100 service hours or two weeks
  • Level A Every 250 service hours or monthly
  • Level B Every 500 service hours or 3 months
  • Level C Every 1,000 service hours or 6 months
  • Level D Every 2,000 service hours or 1 year

Recommended maintenance schedule: A1, A2, B1, A3, A4, B2, A5, A6, C1

The State of Maryland, Annotated Code of Maryland, Transportation Article. Title 23. Vehicle Laws - Inspection of Used Vehicles and Warnings for Defective Equipment, Subtitle 3. Preventive Maintenance Program, requires all trucks with a gross vehicle weight (GVW) of over 10,000 pounds carry the following appropriate required documents:

A record of the most recent inspection (at least every 25,000 miles or at least every 12 months, whichever occurs first), including any maintenance or repair work performed; or

A written certification that the vehicle is maintained under a preventive maintenance plan approved by the Administration and the Automotive Safety Enforcement Division of the Maryland State Police Division. Transportation will schedule preventive maintenance for all dedicated and motor vehicles according to the guidelines and will also complete an Annual Preventive Maintenance Report. This ensures efficient and continuous vehicle operation and increased useful life. User departments and agencies must bring in vehicles for preventive maintenance appointments. Additional information on the STS Transit system buses is available in the Transportation Policies and Procedures Manual.

Maintenance Status Chart
Maintenance Status Chart

Currently, individual vehicle operators are responsible to review the oil sticker date located in the left-hand corner of the vehicle to determine when the vehicle is due for preventive maintenance; STS Transit Buses maintenance is tracked by the Transportation Supervisor via an internal oil change spreadsheet. The Transportation Division plans to establish an automated fleet flagging system (HTE) for use by the Vehicle Maintenance Supervisor. If an employee is unable to deliver the vehicle for a scheduled maintenance appointment, they must inform the Vehicle Maintenance Supervisor immediately to schedule an alternative date.

Abuse of this responsibility may result in the confiscation of the vehicle by the Transportation Division, suspension of the privilege to utilize the vehicle(s), or another disciplinary action in accordance with the St. Mary's County Personnel Policies and Procedures Manual.

After completing each preventive maintenance service, the Transportation Division will place a sticker on the vehicle indicating the miles (or hours) when the next preventive maintenance check is due. The user must notify the Transportation Division if the vehicle is within one (1) week of the next required maintenance, based on reasonable anticipated use if they have not been previously contacted by the Transportation Division. It is essential for all operators of County vehicles to cooperate by making the necessary adjustments in their schedules to ensure that routine and preventive maintenance service performance goals are achieved. If needed, a temporary loaner vehicle and fuel will be provided by Vehicle Maintenance until the maintenance of an agency / Department's assigned vehicle is completed.

Sheriff's Patrol and emergency service units may be serviced for routine maintenance without appointment. Every reasonable effort will be made to accommodate drive-ups by Sheriff's Office Patrol units due to their 24 hour emergency operational status under the 2010 in-house "Quick Fix" / "Rapid Repair" Program initiative. Scheduling for regular maintenance for Sheriff's Department's vehicles is available from 7:00 am to 11:00 am, Monday through Friday. Advanced scheduling will normally guarantee faster turn-around time for Sheriff's Office, depending on the extent and nature of the repair.