Red Seal HEO case studies
Red Seal HEO · Put your knowledge to work in context.
The Red Seal Heavy Equipment Operator (HEO) certification is a Canadian interprovincial trade credential that recognizes an operator's competence across the machines and tasks common to earthmoving work. It is intended for operators with trade experience who want their skills formally recognized and portable between provinces, and for apprentices working toward journeyperson status. The Red Seal HEO case studies are 5 cases and about 3,773 words.
1Faded Locate Marks and a Shifted Trench Line
You are the excavator operator on a road-widening contract along a two-lane municipal street. A locate request was submitted 16 days ago and the response marks were painted on the asphalt and boulevard.
751 words, about 4 min2Loading a 13.6 t Excavator on a Wet Lowbed
You must move your 13,600 kg tracked excavator 60 km on a provincial highway. The trailer is a tri-axle lowbed with a 25,000 kg GVWR, a 6,500 kg tare, and a 3.0 m wide, 8.5 m long deck.
731 words, about 4 min3Failed Density Test on a Rained-On Building Pad
You are the lead operator on a 3,200 m² building pad that must receive 600 mm of engineered fill under a slab-on-grade. The geotechnical specification calls for 200 mm loose lifts at moisture within 2% of optimum, compacted to 98% of Standard Proctor maximum dry density, with one field density test per 500 m² per lift.
761 words, about 4 min4Boom Drift, Hot Oil, and a Red Filter Indicator
Mid-afternoon on a 22-tonne excavator with 8,600 hours, the operator reports that with the boom and arm raised and the engine off, the boom settles about 250 mm in ten minutes, and that arm cycle times have slowed noticeably. Hydraulic oil temperature reached 92 °C after 90 minutes of trenching in 28 °C ambient; it normally sits around 70–75 °C.
728 words, about 4 min5Ruptured Dipper Hose Over an Occupied Trench
A backhoe is loading spoil from a 1.6 m deep utility trench beside a curb. The operator swings the loaded bucket over the trench while a labourer is at the bottom hand-trimming.
802 words, about 4 min