HEO Crawler Crane NC III study guide
HEO Crawler Crane NC III · Work through your exam, one topic at a time.
The HEO Crawler Crane NC III is a Philippine TVET competency-based credential for crawler crane operators. It is intended for operators who already have basic crane experience and want formal recognition of their ability to inspect, set up, plan lifts, operate, maintain, and document work with crawler-mounted lattice-boom cranes. The HEO Crawler Crane NC III study guide has 8 sections and about 2,795 words.
01Pre-operation inspection of crawler crane and accessories
This domain tests whether you can prove a crawler crane is fit for the shift before the engine starts: structural, rope, safety-device and fluid checks, and the judgement to reject a machine. Structure: track shoes, grousers, links, pins, sprocket and idler wear, track frame and carbody cracks, boom chords and lacings, boom foot pins and retainers, pendant (boom suspension) ropes, boom stop, and sheave condition (flange wear, gauge, free rotation, cracked webs).
370 words, about 2 min02Site preparation, rigging, and load handling planning
This domain tests the planning done before the crane moves: ground conditions, access, clearances, and the rigging that connects the load to the hook. Estimate ground bearing pressure: crane weight + counterweight + load + dynamic allowance, divided over the track contact area; compare with soil capacity and add steel mats or cribbing where needed.
360 words, about 2 min03Crawler crane setup, stabilization, and boom configuration
This domain tests assembly and set-up: getting the machine level, building the boom correctly, and configuring reeving and counterweight so the load chart actually applies. Prepare a level, drained, compacted assembly area; block boom sections on timber so chords and lacings are not damaged.
325 words, about 2 min04Crane operation and load movement
This domain tests the lift itself: control of the load, staying within the chart, and the discipline that stops a routine pick becoming an incident. Verify weight, radius, chart capacity and rigging before the lift; set the RCL/LMI for the actual configuration.
336 words, about 2 min05Load charts, capacity calculations, and lift planning
This domain tests the numbers: reading the right column, deducting rigging, and building a lift plan that is provably within capacity. Columns are boom length (lattice) or boom angle, rows are radius, cells are rated capacity.
339 words, about 2 min06Occupational safety and health, including crane signals and exclusion zones
This domain tests the safety system around the lift: who signals, who is excluded, and what stops the job. One designated signalman, identifiable by vest or gloves, with a clear view of the load and the operator.
361 words, about 2 min07Maintenance, troubleshooting, and shutdown procedures
This domain tests whether you keep the machine serviceable, diagnose faults safely, and shut down so it is fit for the next shift. Follow the manual's daily, weekly and periodic intervals: lubrication chart, track shoe bolt torque, track tension, brake adjustment, hydraulic filters and oil sampling.
367 words, about 2 min08Documentation and reporting
This domain tests the paper trail that proves the crane was inspected, the lift was planned and defects were handled - the part candidates most often treat as optional. Machine documents: operator's manual, load charts in the cab, RCL/LMI calibration certificate, third-party inspection and load test reports, wire rope certificates, maintenance and lubrication records.
337 words, about 2 min