MECHANICAL HANDLING - NEBOSH Quick Revision Sheet
Fork Lift Trucks (FLT’s)Hazards / Controls
- Accidents:
- Overturning, due to high speed turns, ramp turns, driving with raised load, uneven road surface (most fatalities);
- Overloading, unstable loads;
- Collisions with
-Racking systems (e.g. Wrexham warehouse);
-Pedestrians, other vehicles.
- Main causes:
- Lack of driver training
- Lack of maintenance (for safety purposes)
- Horizontal instability:
- Tyre pressures
- Centre of gravity
- Live loads
- Turning with raised loads
- Turning at speed
- Driving across inclines
- Uneven ground
- Longitudinal instability:
- Parallel drops
- Over loading
- Braking at speed
- Inclines
- Undercutting loads
- Exceeding safe lift height
- Other hazards:
- Fire and explosion;
-Flammable atmosphere (e.g. paint factory);
- Exhaust gas/fumes in confined spaces;
- Hydraulic failure on lifting forks;
- Unauthorised use as a working platform.
- Selection of equipment:
- Type of power source; battery/LPG/diesel
- Size and capacity
- Type of tyres; solid, pneumatic depending of surface
- Height/reach of mast
- Warning systems fitted
- Protective systems fitted; ROPS and/or FOPS
- Operators:
- Selection e.g. physical/mental fitness and intelligence
- Training given specific to type of FLT
- Establishment of:
- Suitable traffic routes
- Parking areas
- Battery charging facilities if applicable
- Storage of LPG gas bottles if applicable
- Operational rules for fork lift trucks
- Procedures for security of keys when not in use
- Maintenance by competent personnel
- Well-lit operational areas
- Segregation of vehicles and personnel
- Operator pre-use checklists
- Operator Pre-Use Checks:
- Safe Working Load (SWL) and size
- Lights (including warning beacon)
- Brakes
- Horn
- Seatbelt
- Tyre pressures
- Hydraulics (leaks)
- Condition of mast for chains
- Function of controls
- Condition of windscreen etc (if applicable)
Hazards / Controls
Pallet trucks
- Overloading & tipping
- Collision with other people or fixed object
- Loss of an unsecured or unstable load
- Crushing operative between pallet truck and a fixed object; especially if being pulled
- Hydraulic lift failure
- Manual handling
- Correct SWL for the load to be moved.
- Equipment subject to maintenance and inspection to ensure it is kept serviceable
- Pallet loads shrink wrapped to prevent loss of load
- Safety boots and gloves
- Training of operatives on safe use
Sack Barrows
- Manual handling
- Loss of load
- Crush injuries
- Falling objects
- Mechanical failure
- Correct SWL for the load to be moved.
- Equipment subject to maintenance and inspection to ensure it is kept serviceable
- Securing load to the barrow
- Safety boots and gloves
- Training of operatives on safe use
Lifts and Hoists
- Being trapped in a lift whilst being operated
- Mechanical failure
- Falls from height
- Because loads lifted to height (e.g. materials hoist on construction site) the loads can fall onto people below if:
- Unsecured; or
- People are allowed under hoist while it is working.
- Manual handling loads onto/off of lift/hoist
- Sound mechanical construction - strength & stability
- Interlocked doors or gates
- Marked with SWL
- Operated from 1 position either inside the lift/cage or outside
- If carrying people fitted with appropriate safety devices to prevent carrier from falling
- Moving parts guarded
- Signage and restricted access
Conveyers and Chutes
- Conveyers:
- In-running nip between drive-rollers and belt (quarry accidents during cleaning at bottom roller);
- Entanglement:
-Conveyor belt/slats.
- Loads falling from the conveyer
- Head impact on overhead conveyer
- Noise and vibration
- Manual handling
- Chutes:
- Materials spilling out of the chute hitting people etc.
- Noise
- Collapse of chute
- Conveyers:
- In-running nip guards
- Trip devices
- Bump caps / hard hats
- Warning signs and restricted access
- Removal of sharp edges
- Edge protection for high level conveyers
- Chutes:
- Signage
- Barriers to restrict access
- Erected by competent operatives
- Use of plastic construction to reduce noise
- Have chute feed directly into a protected skip to prevent materials hitting people.
Lifting Equipment
Definition of Lifting Equipment / Definition of Lifting Accessories
- Work equipment used for lifting and lowering loads including attachments used to fix or support the equipment (e.g. runway on an overhead crane)
- Equipment for attaching loads to machinery for lifting
Equipment Examples
- Cranes – mobile and tower
- Workplace passenger and goods lifts
- Construction hoists
- Dumb waiters used in restaurants
- Scissor lifts
- Vehicle tail lifts
- Bath hoists
- Telehandlers and industrial lift trucks
- Vehicle lifts
- Slings textile and chains
- Hooks
- Shackles
- Eyebolts
- Ropes used for climbing or work positioning
- Spreader bars
Hazards with the Use of Cranes / Control Measures in the Use of Cranes
- Mechanical failure / collapse
- Failure of lifting ropes, slings etc
- Uneven, unstable ground
- Overturning
- Overloading
- Collision with people
- Collision with fixed/stationery objects
- Unauthorised operation
- Swinging loads as a result of:
- High winds
- Slewing the crane jib too fast
- Driving with the load suspended.
- Every employer shall ensure that every lifting operation involving lifting equipment is:
- Properly planned by a competent person
- Appropriately supervised
- Carried out in a safe manner
- Person planning the lift should have practical and theoretical knowledge
- The plan will need to address the
- Risks identified by the risk assessment
- Resources required
- Responsibilities
- Plan to ensure that the equipment remains safe
- Degree of planning will vary considerably and depends on:
- Type of lifting equipment used
- Complexity of operation
- Consideration of weight / size / centre of gravity etc. of load
- Where two or more items used simultaneously for lifting a written plan is required
- Outriggers to be extended sufficiently to ease load on vehicle springs
- Area of slew by crane jib to be kept clear at all times
- Crane not to be left with load suspended
- Vehicle not to be driven with load suspended
- Crane to be stowed safely away prior to movement of vehicle
Routine Lifting Operations
- Planning usually a matter for the people using the lifting equipment e.g. Slinger or Fork Lift Truck(FLT) operator.
- An initial plan may only be required once but reviewed occasionally e.g.
- FLT in warehouse
- MEWP
- Vehicle tail lift
- Suspended cradle for window cleaning
Thorough Examination and Inspection
Equipment (Prime Mover)
- 12 monthly thorough examination/inspection
- If used for lifting people will 6 a monthly thorough examination/inspection
- Visual inspection daily before first use
- A daily inspection is required to be recorded at least once every 7 days (in reality it generally gets recorded every day)
- Thoroughexamination/inspection 6 monthly.
- Visual inspection before every use (could have been damaged during its previous use)
- Lifting Accessories will not normally require an inspection as long as they receive a thorough examination
- Will need a proper pre-use check by the slinger/ signaller
Rope Faults / Textile Sling Faults / Chain Faults
- Broken wires;
- Worn wires;
- Corroded wires;
- ‘Bird Caging’ of wires;
- Kinked wires;
- Crushed wires.
- Webbing damaged by heat, chemicals, rot etc.
- Cut or nicked webbing;
- Abraded webbing;
- Stretched and deformed webbing.
- Deformed links;
- Stretched links (noticeable thinning of chain) usually from using above its Safe Working Load (SWL)
- Cracked links;