This class includes repair and maintenance of industrial machinery and equipment like sharpening or installing commercial and industrial machinery blades and saws or the provision of welding (e.g. automotive, general) repair services; the repair of agricultural and other heavy and industrial machinery and equipment (e.g. forklifts and other materials handling equipment, machine tools, commercial refrigeration equipment, construction equipment and mining machinery), comprising machinery and equipment of division 28.

This class includes :

Repair and maintenance of non-automotive engines, e.g. ship or rail engines

Repair and maintenance of pumps and related equipment

Repair and maintenance of fluid power equipment

Repair of valves

Repair of gearing and driving elements

Repair and maintenance of industrial process furnaces

Repair and maintenance of materials handling equipment

Repair and maintenance of commercial refrigeration equipment and air purifying equipment

Repair and maintenance of commercial-type general purpose machinery

Repair of other power-driven hand-tools

Repair and maintenance of metal cutting and metal forming machine tools and accessories

Repair and maintenance of other machine tools

Repair and maintenance of agricultural tractors

Repair and maintenance of agricultural machinery and forestry and logging machinery

Repair and maintenance of metallurgy machinery

Repair and maintenance of mining, construction and oil and gas field machinery

Repair and maintenance of food, beverage, and tobacco processing machinery

Repair and maintenance of textile apparel, and leather production machinery

Repair and maintenance of papermaking machinery

Repair and maintenance of other special purpose machinery of division 28

Repair and maintenance of weighing equipment

Repair and maintenance of vending machines

Repair and maintenance of cash registers

Repair and maintenance of photocopy machines

Repair of calculators, electronic or not

Repair of typewriters

This class excludes installation, repair and maintenance of furnace and other heating equipment, see 4322.