Diesel Mechanic, Solid Waste Collection - 3313

Career Purpose

This is skilled mechanical work at the journeyman level in the maintenance and repair of heavy motorized equipment and related motive and fire equipment.


  • Performs needed repairs and complete approved work, insuring that clearances, fittings, adjustments, settings, replacements and repairs are correct and precise in accordance with existing technical manuals, specifications or instructions.
  • Determines causes of mechanical operating problems, traces and locates defects, and makes repairs to heavy mobile equipment and vehicles.
  • Repairs, overhauls or rebuilds engines and does other major repair of systems such as diesel, gasoline and other types of internal combustion engines, automatic and standard transmissions, heavy duty drive line systems and hydraulic utility systems and controls.
  • Repairs and maintains heavy equipment such as bulldozers, road graders, rollers, front end loaders, backhoes and similar power shovels; mobile cranes and similar heavy construction and earth moving vehicles. Repairs and maintains heavy special purpose vehicles such as large fire trucks which have hydraulic, pneumatic and mechanical utility systems and controls and features not commonly found on motive and ordinary transport trucks and buses.
  • Fits and installs parts, pistons, piston rings, valves, bearings, gears, and cylinders to appropriate tolerances.
  • Makes changes or modifications in accordance with specifications and guidelines.
  • Connects, meshes, aligns and adjusts items and systems to assure proper operations of the complete system or vehicle and tests completed work to assure proper performance of equipment repaired.
  • Performs other duties as assigned.


To perform this job satisfactorily, the individual must be able to perform each essential function satisfactorily.  The requirements listed below are representative of the knowledge, skills, and ability required.  Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.

  • Possession of a Class B Commercial Drivers License upon hiring
  • Knowledge of the methods, materials, tools and standard practices of the motive trade as applied to the repair and maintenance of heavy trucks, heavy construction equipment, and fire equipment. Knowledge of the principles of operation and maintenance of heavy motorized equipment.
  • Knowledge of the hazards and safety precautions of the trade and the ability to understand and carry out oral and written instructions.
  • Knowledge of the mechanical makeup, operation and working relationship of a variety of heavy duty systems, assemblies and parts, including major systems such as diesel multi-fuel and gasoline engines, drive train assemblies and hydraulic lifting, loading, turning and positioning systems including their mechanical, hydraulic and pneumatic controls.
  • Ability to use technical manuals, illustrations, diagrams, specifications, schematics and similar guides to make repairs and modifications.
  • Ability to select the best work methods to find and correct mechanical defects and make the appropriate repairs.
  • Graduation from an accredited high school, vocational school or possess a G.E.D and Five (5) years experience in maintaining and repairing motive equipment including work on fire equipment and/or heavy construction equipment, or an equivalent combination of training and experience.
  • Possession of own mechanic's tools.


The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of the job.  Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions. 

The work involves responsibility for performing skilled repair work on specialized equipment used in municipal service. Work involves application of specialized knowledge of hydraulic systems, electrical and mechanical power take-off and drive systems, and heavy equipment attachments.  The employee is subject to extreme physical conditions.


Regularly = 67% of the work time or greater;

Frequently = 34% - 66% of the time;

Occasionally = 12% - 33% of the time;

Rarely = less than 1 hour in an 8-hour shift.

Regularly: Basis is required to smell to detect presence of petroleum based products.

Frequently: Required to lift or carry 20 to 100 pounds, push, pull, turn, reach, handle, finger, grasp, stand, walk, speak, see, (shape/size/distance/motion/color), and hear, also required to handle shop tools and start/stop/observe panels and equipment.

Occasionally: Required to climb, stoop, kneel, crouch, sit, and touch.

Rarely: Required to crawl.


The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of the job.

Regularly: Exposure to methane gas, hydrogen sulfide and other toxic gases and fumes; petroleum products such as gasoline, diesel and solvents.

Frequently:Exposure to heat, cold, wetness, dust, dirt, and noise.                            

Occasionally: Overtime for: call-out for emergency equipment repairs. 


First Application Review:

The first application review date will commence on March 26, 2021.  All application submitted after that date will be placed in a separate folder awaiting the outcome of the initial review.  Should none of the original applicants be selected, the second set will be available for review.


Safety Sensitive:

This position is a “safety sensitive” position as defined by the US DOT drug and alcohol testing regulations, the Oklahoma Standards for Workplace Drug and Alcohol Testing Act and/or Oklahoma Medical Marijuana laws. The “safety sensitive” positions in the following categories may be subject to periodic random drug testing pursuant to City of Lawton Administrative Policy 3-02: Drug & Alcohol Free Workplace. Marijuana is one of the substances included in the drug panel screening. Possession of a medical marijuana license will not excuse you from the testing process, or the consequences of testing positive for marijuana. The categories listed are inclusive of City of Lawton jobs only.

  1. Police Officers or Peace Officers;
  2. Employees authorized to carry firearms;
  3. Employees with drug interdiction responsibilities;
  4. Employees that work in direct contact with inmates;
  5. Employees engaged in activities which directly affect the safety of others.


FMCSA-DOT Clearinghouse Requirement

Licensed commercial drivers are required to register and create a profile with the Federal Motor Carrier Clearinghouse at https://clearinghouse.fmcsa.dot.gov/register.   Positive drug screen information shall be reported in the Federal Motor Carrier Safety Administration’s Clearinghouse.  Periodic queries shall be ran on all commercial licensed drivers.


The duties listed in this description are intended only as illustrations of the various types of work that may be performed. The omission of specific statements of duties does not exclude them from the position if the work is similar, related or a logical assignment to the position. The job description does not constitute an employment agreement between the employer and employee and is subject to change by the employer as the needs of the employer and requirements of the job change.  

Equal Opportunity Employer

The City of Lawton affords equal employment opportunity to all individuals regardless of race, color, national origin, sex, religion, age, disability status or genetic information. Persons selected for employment into any position must pass a drug test. Some positions may require passing an alcohol test. Previous employment and any additional experience will be subject to verification prior to employment processing. A driver’s license and driving record check will be conducted if driving is a job requirement. A post offer employment medical examination may be conducted prior to job placement.

Vacancy #
Closing Date
Career Type
$1,242.40 Bi-weekly
Hiring Organization
Solid Waste Collection

How To Apply ?

Application Instructions

Note: You need to have Adobe Reader installed on your device to complete the application. Download and complete the attached application in Adobe Reader. Instructions to submit application is mentioned in the application form.