Ahern Jobs

Class B Mechanic

Posted Date: 08-05-20
Location: Portland - OR
Manage Others: No
Availability: Full Time

We are an equal opportunity employer

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This is skilled mechanical work in the repair and maintenance of automotive and heavy duty equipment.  Incumbents are responsible for the performance of tasks in moderate repair of heavy automotive equipment and construction machinery.  Heavy equipment mechanics repair and maintain heavy machineries used in construction projects and other similar activities. They are highly trained to work safely and assure that they can protect themselves from injury.


Essential Duties and Responsibilities:


May or may not include:


  • Overhauls and repairs engines, disassembles engines, replaces defective parts, reassembles, makes adjustment to electric and fuel systems.
  • Repairs and maintains heavy duty and other construction machinery in the shop.
  • Assigns duties to assistants (if applicable)
  • Inspects work in progress to see that repairs and replacements are properly made and units are satisfactorily assembled.
  • Does skilled repair work in installing timing gears, fitting crankshafts, crankshaft cylinders, and repairing hydraulic systems.
  • Inspects, repairs and adjusts steering clutches
  • Must be able to satisfy class C requirements
  • Have basic knowledge to troubleshoot and repair electrical, gas and diesel customer owned equipment.
  • May be required to change out forks or attachments.
  • May have to run pressure washers to clean equipment.
  • May have to drive machines on public roadways.
  • May have to run an occasional service calls
  • Must be able to maintain a safe, reasonably clean and organized work environment.
  • Other duties or tasks may be assigned on an as-needed basis



  • Must have either a minimum 2 years High Reach mechanical experience or trade school training and 6 months High Reach mechanical experience.
  • Must be able to read English.
  • Must be able to safely operate various types of high reach equipment including forklifts, scissor lifts, boom lifts
  • Must be able to wear safety fall protection
  • Must be able to follow directions.
  • Must be able to work basic computer functions.
  • Must have Minimum Class "B" Hand & power tools
  • Must have Steel Toe Work boots.
  • Basic welding skills preferred
  • Must be able to read and understand Electrical Schematics
  • Must be able to read and understand Hydraulic Schematics
  • Must be able to properly use test equipment, gauges, meters & hand-helds
  • Must be able to properly use parts manuals to obtain parts and order parts.
  • Must be able to maintain a safe, reasonably clean and organized work environment.
  • Valid Driver's license and clean driving record is preferred.


Class B mechanics must have basic knowledge of power, electrical and hydraulic

systems. They need to be able to check and adjust hydraulic pressures, run electronic

self diagnostic systems & diagnose engine problems.


The following is the minimum tool requirement for class B mechanics:


  • Wrench sets 5/16” to 2”
  • Metric wrench set 6mm to 30mm
  • Complete set of screwdrivers
  • Pick set
  • Complete set of Metric & Sae ¼” & 3/8” drive sockets
  • Complete set of Metric & Sae ½” drive sockets
  • Spark plug sockets: 5/8”, 3/4” & 13/16”
  • 7/16-7/8” line wrenches
  • 8”, 10” and 12” adjustable wrench
  • 24” pipe wrench
  • Torque Wrench ½” drive ft lbs
  • ½” drive impact wrench
  • Die Grinder with cut off attachment
  • Power drill, (air or electric) at least 3/8”
  • Impact sockets; ½” to 1” & 10mm to 19mm
  • Hammers; Ball Peen, Dead blow & rubber mallet
  • Punch and Chisel assortment
  • Various pry bars, small, medium & large
  • Tape measure
  • Pliers: regular, slip joint & needle nose
  • Vice grips-assortment
  • Diagonal pliers (dikes)
  • Electrical Crimping/stripping tool.
  • Snap ring pliers both internal & external
  • Strap oil filter wrench
  • Basic Allen wrench set-metric and SAE
  • Seal pullers
  • Seal installation tools
  • Set screw extractors
  • Small Drill bits set 3/16”-3/8”
  • Tool box with lock
  • Spark tester
  • Spark plug gapping tool
  • Feeler gauges
  • Test light
  • Grease Gun with flexible tip
  • Battery terminal puller and Battery terminal cleaning tool
  • Digital Volt meter with various leads
  • Rolling Creeper
  • Working Flashlight
  • Work Boots – Must be steel toe


Physical Demands:

While performing the duties of this job, the employee is frequently required to use hands to finger, handle, or operate objects, tools, or controls; and reach with hands and arms. The employee is occasionally required to climb or balance; stoop, kneel, bend, crouch, or crawl. The employee is occasionally required to walk, sit, talk, write and hear.

The employee must frequently lift, push, pull, and/or move weights varying between 25 - 100 lbs. Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception, and the ability to adjust focus.

Work Environment:

While performing the duties of this job, the employee frequently works near moving mechanical parts or in outside weather conditions The employee is required to wear protective gear when exposed fumes, grease, oils, toxic or caustic chemicals. The noise level in the work environment is usually loud.

Mechanics typically work in repair shops or in outside work areas depending on the size of the facility. The work shops are well lighted and ventilated. An employee of this position may be exposed to poor weather conditions, including extreme heat. They may also work in cramped or awkward positions to efficiently service equipment. On occasion A class "B" Mechanic will be required to travel to a jobsite to perform maintenance on equipment rented by customers.

Mechanics and are exposed in hazardous work environment, must be able to be outside in the elements anywhere from 5% to 95% of shift, depending on the size of the location.

Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Ahern Rentals, Inc. is an Equal Opportunity Employer

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