Service Technician (HD Journeyman) (310T, 421A, 425A, 310S)

Custom Truck One Source•North Dumfries, ON

10d•Onsite

About The Position

Service Technicians (310T, 421A, 425A, 310S) Journeyman, or Red Seal. You will play a critical role in keeping specialized utility trucks and equipment safe, reliable, and ready for the field. This is a hands-on role where you will inspect, troubleshoot, repair, and maintain utility trucks, aerial devices, cranes, and other vocational equipment used by essential industries across North America.

Requirements

Ontario Certificate of Qualification (preferred): 310T – Truck and Coach Technician, 421A – Heavy Equipment Technician, 425A – Agricultural Equipment Technician, 310S – Automotive Service Technician
Strong experience with hydraulic and electrical diagnostics
Ability to work independently and as part of a team
High school diploma or equivalent
Valid Ontario Class G Driver’s License (clean abstract preferred)
Must have own tools

Nice To Haves

Welding and fabrication experience is an asset
Experience with OEM diagnostic software preferred

Responsibilities

Diagnose, service, and repair utility trucks, aerial devices, cranes, and related equipment
Perform preventive maintenance and safety inspections
Troubleshoot mechanical, hydraulic, electrical, and pneumatic systems
Repair truck chassis, PTO systems, aerial lifts, booms, and attachments
Read and interpret schematics, blueprints, and manufacturer specifications
Use diagnostic tools and software (e.g., Cummins INSITE, DTNA, or similar)
Perform component rebuilds (gearboxes, cylinders, outriggers, etc.)
Conduct inspections, testing, and quality checks after repairs
Complete accurate service documentation and work orders
Ensure all work meets safety and quality standards (CSA, ANSI, dielectric testing where applicable)
Collaborate with team members in a professional shop environment
Participate in safety meetings and maintain a safe workplace