CSCS Telescopic Handler common mistakes
CSCS Telescopic Handler · Understand the traps and how to avoid them.
Reading the load chart only at the start of the lift and continuing once the boom is extended or the load is raised without re-checking the chart for the new radius and height combination.
Candidates treat the capacity chart as a single lookup rather than a matrix, and underestimate how quickly radius grows as the boom extends and the machine settles.
What to do instead
Practise reading the chart as a grid: locate the boom length column, then the radius row, and confirm the height limit for that cell. Re-check after every change in boom length, radius, or attachment, and remember capacity falls as radius increases.
Using the machine's rated capacity or the attachment's marked capacity as the lift limit without accounting for the weight of the attachment, pallet forks, or load-handling devices.
The headline capacity figure is memorable and candidates conflate 'machine can lift X' with 'I can lift X on these forks'.
What to do instead
Treat the chart value as the total load including attachment and rigging. Subtract attachment weight before deciding the payload, and state the net allowable load out loud before lifting.
Travelling with the boom raised and the load high, or slewing/turning with the boom up, instead of travelling with the boom lowered and retracted.
Candidates prioritise visibility over stability and do not connect a raised boom to a raised centre of gravity and reduced forward/backward stability.
What to do instead
Adopt the rule: travel with the boom fully retracted and lowered to the travel position, load close to the ground, and only raise the boom when the machine is stationary and level at the pick or place point.
Failing to confirm ground conditions and outrigger/wheel loading before setting up, then operating on soft ground, slopes, or over voids and drains.
Candidates focus on the machine and load and treat the ground as a given; they also do not know typical allowable bearing pressures or how to spot backfilled areas.
What to do instead
Before setting up, walk the area, look for soft spots, recent excavation, drains and manhole covers, check the slope with the machine's inclinometer or a level, and use spreader plates under outriggers or wheels where bearing pressure demands it.
Skipping or rushing the pre-use inspection, signing the checklist without physically checking tyres, hydraulic hoses, load charts, seat belt, and warning devices.
Candidates see the check as paperwork and assume the previous operator or the last shift covered it.
What to do instead
Work through the check in a fixed sequence (walk-round, fluids, tyres and wheels, hoses and rams, structures, cab controls, alarms and interlocks), physically touch and test each item, and record defects with the action taken rather than a bare tick.
Not recognising when a defect is a 'do not operate' fault versus a minor one, and continuing to use the machine with a damaged tyre, leaking hose, or faulty load-moment indicator.
Candidates lack a clear threshold and fear the consequences of stopping work.
What to do instead
Learn the categories: safety-critical defects (brakes, steering, structural cracks, load-moment indicator or alarm faults, damaged tyres or wheels, hydraulic leaks) mean stop, isolate, tag out, and report. Any fault affecting capacity, stability, or control is a stop item.
Relying on the load-moment indicator or audible alarm as the primary control rather than as a backup, and ignoring or silencing warnings to complete a lift.
Candidates treat the electronics as the decision-maker and do not understand that the indicator warns of overload but does not prevent instability or tip-over from dynamic effects.
What to do instead
Plan the lift against the chart first; use the indicator as a cross-check. Never override or mute alarms, and stop the lift if the indicator warns. Understand that shock loading, wind, and travelling with a load are outside the indicator's protection.
Poor communication during lifting: no agreed signals, no banksman, no exclusion zone, and moving the machine while a person is guiding the load by hand.
Candidates underestimate blind spots and assume the person guiding can step clear in time.
What to do instead
Agree the signalling method and the person in charge before the lift, keep hands off the load and use tag lines, establish a pedestrian exclusion zone under and around the load, and stop the machine if you lose sight of the signaller.
Incorrect slinging: selecting slings by eye without checking SWL, using damaged or unmarked slings, wrong sling angle, and no protection over sharp edges.
Candidates focus on the machine and forget the rigging is part of the lifting system, and they do not adjust for sling angle effects on tension.
What to do instead
Check each sling's tag and SWL, inspect for damage, use edge protection, and remember that as the included angle widens the tension in each leg rises sharply. Match the rigging to the load's weight and centre of gravity and confirm the load is balanced before lifting.
Choosing the wrong PPE or wearing it incorrectly for the task, and misunderstanding occupational health risks such as silica dust, noise, vibration, and hydraulic fluid injection.
Candidates treat PPE as a box-ticking exercise and do not link specific tasks to specific hazards, and they are unfamiliar with health effects that are not immediately visible.
What to do instead
Match PPE to the task: hard hat, high-visibility clothing, safety footwear, and eye and hearing protection where required; gloves appropriate to the task, and respiratory protection with water suppression for dust. Know that hydraulic injection injuries are a medical emergency and that hand-arm vibration exposure must be limited.