Forklift Tip-Over from Overloading or Instability
HighForklift tip-over represents the most severe hazard in forklift operations, occurring when equipment's combined centre of gravity (forklift plus load) moves outside stability triangle formed by front wheels and rear axle centre point. Forward tip-over occurs when load capacity is exceeded, loads are raised to excessive heights whilst stationary or travelling, or sudden braking with elevated loads shifts momentum forward. Lateral tip-over results from operating across slopes (perpendicular to slope direction), turning too sharply at excessive speed particularly when loaded, driving over curbs or edges causing one side to drop, or hitting obstacles causing sudden directional changes. Rearward tip-over occurs when descending ramps without loads or with inadequate counterweight, or when loads fall off forks rearward. Contributing factors include inaccurate assessment of load weights, operating beyond rated capacity, raising loads too high before travelling, excessive speed on slopes or uneven ground, worn or damaged tyres affecting stability, and operator error including sharp steering inputs at speed. Load characteristics significantly affect stability - off-centre loads create asymmetric weight distribution, loads with high centres of gravity reduce stability compared to compact loads, and non-rigid loads can shift during handling changing centre of gravity. Uneven ground surfaces create dynamic loading during travel, whilst slopes fundamentally change stability characteristics requiring capacity derating and modified operational procedures. Once tip-over is initiated, the event progresses rapidly with operators having 1-2 seconds maximum before impact, insufficient time for evasive action beyond bracing within operator cage and maintaining restraint system engagement.
Consequence: Fatal crushing injuries when operator cage impacts ground and operator is crushed within deformed cage, or when operators attempt to jump from tipping forklift and are crushed in tip-over path. Severe injuries including spinal trauma, fractures, internal injuries, and head trauma even when operators survive tip-over. Permanent disability affecting quality of life and employment capacity. Equipment damage requiring extensive repairs or replacement. Investigation, prosecution, and potential imprisonment for responsible parties following fatal incidents.
Collision with Pedestrians in Shared Work Areas
HighForklifts operating in warehouses and construction sites share space with pedestrian workers conducting manual handling, construction tasks, order picking, and traffic through areas. Pedestrian collisions occur when forklift operators have insufficient visibility due to loads obstructing sightlines, when pedestrians walk into forklift travel paths without awareness of approaching equipment, when forklifts reverse without adequate rear visibility or spotter assistance, or when both forklifts and pedestrians approach blind corners or intersections simultaneously without warning systems. Forklift design creates significant blind spots including directly in front when loads are raised, rearward where mirrors provide only limited coverage, and immediately around forklift sides particularly near front wheels. Pedestrians focused on their own tasks may not monitor for approaching forklifts, whilst high-noise construction environments prevent pedestrians hearing forklift approach particularly electric forklifts operating very quietly. Congested work areas with narrow aisles, multiple simultaneous activities, and temporary storage in traffic routes create numerous potential conflict points. Forklift speed affects both collision likelihood and severity - faster travel reduces reaction time for both operators and pedestrians whilst increasing impact forces and stopping distances. Pedestrians wearing headphones for noise protection or entertainment cannot hear audible warnings from reversing alarms or horns. Some workers become habituated to reversing alarms and warning sounds, no longer responding appropriately to warnings that sound continuously throughout shifts. Seasonal workers or contractors unfamiliar with site traffic management may not understand designated routes or right-of-way protocols.
Consequence: Fatal crushing injuries when pedestrians are struck by forklifts and knocked down then run over, or when pedestrians are crushed between forklifts and structures. Severe impact injuries including fractures, head trauma, spinal injuries, and internal injuries requiring emergency treatment and extended hospitalisation. Permanent disabilities affecting mobility and work capacity. Psychological trauma affecting both injured pedestrians and forklift operators involved in collisions. Prosecution and imprisonment for gross negligence causing death. Business disruption during investigations and implementation of control improvements.
Falling Loads from Forks During Lifting or Transport
HighLoads can fall from forklift forks during lifting, lowering, or transport operations if loads are insecure, loads are not properly centred on forks, or load stability is compromised by forklift movements. Common scenarios include loads sliding off forks during acceleration or braking if loads are not secured or tilted adequately against mast, pallets collapsing under load weight if pallets are damaged or deteriorated, loads tipping sideways if loads are asymmetric or off-centre on forks, and loads caught on overhead structures or racking during lifting dislodging from forks. Sudden stops can cause loads to slide forward off forks even if initially positioned correctly, whilst sudden acceleration can cause loads to tip backward. Inadequate mast tilt failing to nest loads against load backrest allows loads to slide rearward particularly during braking or descending ramps. Damaged or bent forks reduce load support creating potential for loads to slip between forks. Lifting operations near other workers position pedestrians beneath or adjacent to elevated loads where falling load consequences are most severe. Material types affect falling load risks - loose materials including bricks or blocks can spill from pallets striking workers nearby, long materials including timber or steel can pivot during falls creating wide impact zones, and heavy dense materials generate tremendous impact forces even from moderate heights. Workers positioned under forklifts during load placement on elevated racking, or working adjacent to forklifts loading trucks, are in direct fall paths if loads detach from forks.
Consequence: Fatal crushing injuries from heavy loads falling onto workers, particularly loads falling from elevated heights gaining substantial impact energy. Severe fractures, spinal injuries, head trauma, and internal injuries requiring emergency medical treatment. Multiple workers potentially injured simultaneously if loads spill across wide areas. Material damage requiring replacement and project delays. Regulatory investigation and potential prosecution if falling loads cause serious injuries or fatalities.
Struck by Forklift Mast or Load During Reversing Operations
HighReversing forklifts present struck-by hazards from rear forklift components, raised masts, or loads extending rearward contacting workers positioned behind forklifts. Forklift operators have extremely limited rear visibility particularly when loads are carried, relying on mirrors providing only partial coverage and creating blind zones immediately behind equipment. Workers positioned in blind zones are invisible to operators, with particular risk during reversing when operators focus attention rearward whilst potentially missing workers in direct reversing path. Raised masts and overhead guards extend significantly above operator cab level, creating overhead hazards striking workers' heads or upper bodies when forklifts reverse near workers. Loads extending rearward beyond forklift wheelbase, or loads with irregular shapes, can strike workers even when forklift body has adequate clearance. Construction sites often have workers at various levels including ground level, working from ladders, or on scaffold platforms, creating three-dimensional hazard space around reversing forklifts. Reversing alarms provide audible warnings but are ineffective if workers are wearing hearing protection blocking alarm sounds, in high-ambient-noise environments masking alarm tones, or if workers have become habituated to continuous alarms no longer registering alarm sounds as requiring response. Operators reversing in confined spaces may focus on avoiding structures or other equipment whilst missing pedestrians in complex environments with multiple simultaneous hazards.
Consequence: Fatal head injuries or crushing injuries when workers are struck by reversing forklifts or elevated mast components. Severe impact injuries including skull fractures, spinal trauma, and internal injuries. Workers knocked from elevated positions including ladders or platforms when struck by forklift components, causing fall injuries in addition to initial impact. Investigation and prosecution following serious reversing incidents with potential for imprisonment if gross negligence is identified.
Contact with Overhead Power Lines or Structures
HighForklift masts, raised loads, or overhead guards can contact overhead power lines creating electrocution risks, or strike overhead structures causing structural damage and load or forklift instability. Outdoor forklift operation near overhead power lines including site boundary lines, service connections to buildings, or temporary site power presents electrocution risk if mast or raised loads approach within minimum safe clearances. Electricity can arc across gaps if approach distances are inadequate, with arcing distance varying based on voltage - high voltage lines require greater clearance than low voltage. Forklift structure provides conductive path for electrical current if contact occurs, with operators at severe risk of electrocution if touching forklift controls or structure during power contact. Wet conditions increase electrical conductivity of forklift components and ground surfaces increasing electrocution risk. Indoor operations present overhead structure hazards including building structural elements, heating/ventilation ducting, sprinkler pipes, lighting, and cable trays. Contact with overhead structures can damage services, dislodge structures onto forklift or surrounding workers, or snag loads causing load instability or forklift tip-over if loads are pulled rearward. Door headers, mezzanine edges, and building entries present recurring overhead hazards that operators may become complacent about if traversed frequently without incident. Loads extending above normal forklift height including tall palletised loads or loads on raised forks require particular awareness of overhead clearances.
Consequence: Fatal electrocution when forklift contacts overhead power lines with current travelling through operator body to ground. Severe electrical burns and cardiac arrest requiring immediate emergency medical intervention. Arc flash burns to operators and nearby workers from electrical arcing. Falling structures if overhead services are dislodged, causing crush injuries to workers beneath. Facility damage from ruptured sprinkler systems, damaged electrical systems, or structural damage requiring expensive repairs and business interruption during repairs.
Forklift Brake Failure or Loss of Control on Slopes
MediumBrake system failures or inadequate brake capacity when operating on slopes can cause uncontrolled forklift movement resulting in collisions, tip-overs, or run-away equipment incidents. Hydraulic brake systems can fail due to low hydraulic fluid, deteriorated brake lines or seals, worn brake pads or discs, or hydraulic pump failures. Warning signs of brake deterioration include increased pedal travel, spongy brake feel, brake fade during sustained use, or unusual sounds during braking. Operators descending slopes with inadequate braking capacity may attempt to use steering to control speed, increasing lateral forces and tip-over risk. Loaded forklifts descending ramps gain significant momentum with gravity assistance, requiring greater braking force than level ground operation. Engine braking provides supplementary braking on combustion forklifts but electric forklifts may have limited engine braking capability depending on motor configuration. Operators may under-estimate slope gradients particularly when slopes are gradual but extended, not recognising braking demands until already committed to slope descent. Wet or contaminated surfaces reduce tyre traction compounding brake inadequacy. Brake failures on slopes can result in forklifts running away at accelerating speeds beyond safe operation, striking structures, other equipment, or workers unable to clear forklift path. Operators attempting to jump from run-away forklifts can be crushed if they land in travel path or are struck by forklift during dismounting.
Consequence: Uncontrolled forklift collision causing injuries to operator from impact forces, pedestrians or workers struck by run-away forklift suffering crush injuries, structural damage from high-speed forklift impact with buildings or equipment. Forklift tip-over if high-speed collision causes directional change exceeding stability limits. Operators crushed attempting to jump from run-away forklifts. Major equipment damage requiring extensive repairs or replacement. Investigation and potential prosecution if brake maintenance inadequacy contributed to failure.