David Sum Email & Phone Number

Nunavut, Canada

London, Ontario, Canada

• Managed the day-to-day mobilization of the 85 employees belonging to the Operations Support Team; providing technicians, parts people and leadership for various assemblies, rebuilds and personnel requests across Canada
• Provided schedules and quotes for certified machine rebuilds as well as assemblies of new Cat equipment at greenfield mine sites

Multiple Locations Across Canada

• Service Supervisor at Canadian Malartic Gold Mine
• Supervised an overhaul disassembly and reassembly of a CAT 6050 shovelService Supervisor at Quebec Iron Ore Bloom Lake Mine
• Supervised the assembly of new CAT 793 haul trucks, MD6640s drills, 6060 shovel and auxiliary equipment. Also, organized the completion of warranty repair work on other equipment. Service Supervisor at Kirkland Lake.
• Supervised running repairs, planned component replacements, PMs, etc. on CAT 794AC fleet.Customer Support Supervisor at Agnico Eagle Meadowbank/Amaruq Gold Mine
• Supported the on site relationship between Toromont and Agnico Eagle. Ensured operational excellence of our on site technicians and seamless integration with the mine planning.

London, Ontario, Canada

• Completed services and maintenance on CAT excavators, rock trucks, bulldozers, loaders, etc.
• Efficiently performed Clean and Inspects for CAT Heavy Rentals as well as new equipment PDIs
• Aided apprentice technicians in various tasks to ensure they were performed safely and efficiently

Debeers Victor Mine, Ontario, Canada

• Performed scheduled preventative maintenance on CAT 777F, 992G, D6T, D8T, 16M etc.
• Troubleshot electrical, mechanical and hydraulic system failures on the mining fleet
• Worked in a shop environment as well as on a service truck in the open pit and surrounding area

Victoria, British Columbia, Canada

• Fulfilled various tasks on CAT graders, loaders, bulldozers, excavators, etc.
• Demonstrated troubleshooting and preventive maintenance on various CAT equipment
• Aided in certified rebuilds on CAT 994 for gravel pits on Vancouver Island

Richmond, British Columbia, Canada

• Troubleshot and serviced CAT engine and generator failures in the lower-mainland
• Safely worked on CAT marine engines, back-up power systems at hospitals, airports, etc.
• Regularly participated in engine rebuilds, valve lash adjustments and dynamometer testing

Sparwood, British Columbia, Canada

• Diagnosed and repaired failures on CAT D11T, D10T, 797F, 24M, etc.
• Rebuilt D11T and D10T bulldozer hydraulic, mechanical and electrical components
• Involved in Pre Delivery Inspections for certified rebuilds on D11T and D10T

Heavy Equipment Maintenance Technology/Technician

Bachelor Of Engineering - Be, Chemical Engineering