City And Guilds NPTC LEVEL 2 CS30 201 Flashcards
Identify three hazards and risks with the working area
- Power lines
- Keep people working 2 tree lengths apart or 5 metres
- Exclusion zone e.g. water courses - keep fuel away from them and don’t fall in them
- Weather - stop in adverse conditions
- Public footpaths - use signs, barrier tapes
Identify three hazards and risks with the proposed work
- Using a chainsaw - use PPE and have suitable training
- Felling trees - maintain correct distance from other operatives (2 tree lengths)
- Hanging dead wood - be aware of it and do not walk under it
- Dead trees, be aware and undertake suitable safety procedures when cutting it
- Be aware of things that might make you slip, trip or fall. Keep site tidy
- Central place for fuelling - relatively flat preferably, first aid kit here, meeting point
- Fuel safety - keep out of the sun, stay clear of water course or pond by 30m
Outline emergency procedures relevant to working area. (state 5)
- Location/site name
- Grid reference
- Designated meeting place for emergency services
- Nearest access point
- Street name/district
- Type of access - public road, light vehicles only, four wheeled drive
- Suitable helicopter landing site for air ambulance
- Location of nearest A&E and number
- Location of nearest doctors
- Works manager/supervisor contact details
- Your own contact details
Outline 2 key health and safety legislation and industry good practice for Health and Safety at work act 1974 (HSWA)
- Follow training received
- Take reasonable care of their own and other people’s safety
Outline 2 key health and safety legislation and industry good practice for Provision & Use of Work Equipment Regulations 1998 (PUWER98)
- Equipment is maintained
- Equipment is fit for purpose
- Chainsaw should be fully operational with all safety features working correctly
- Adequate training
- Use manufacturers instruction manual
Describe how environmental damage can be caused and minimised
1 cause
1 prevention
Causes:
incorrect storage of fuel and oil
defective machinery
poor work practices
other
Prevention:
following principles of industry good practice
good housekeeping
appropriately trained operators
other
Use appropriate tools, equipment and Personal Protective Equipment (PPE)
Correct tool for the job
PPE - Helmet, visor, ear defenders, gloves, chainsaw boots and trousers
Explain why it is important to maintain chainsaws to manufacturer’s recommendations
- Safe to use
- Takes less effort
- Uses less fuel and oil
- Always works properly
State steps to be taken when a chainsaw is not repairable, faulty or non- operational
- Label chainsaw and remove from service
- Operator maintenance
- Arrange service/repair
Explain why it is important to maintain chainsaw to manufacturers recommendations
- Chainsaw is safer to use
- Reduces machines repair downtime.
- Takes less effort to use it
- Uses less fuel and oil needed
- It will always be working properly
Identify and explain the function of all the key safety features
- On/off switch - stops the engine
- Rear chain break guard - protects the rear hand
- Safety decals (hand/eye/ear defender symbols) - provides mandatory information
- Throttle trigger lockout - stops accidental throttle operation
- Chain catcher - catches derailed chain.
- Anti vibration mounts (rubber or spring mounts) - reduces vibration for user
- Exhaust - noise reduction and reduces emissions and directs fumes away from operator
- Combined chain brake an front hand guard - stops the chain rotating and protects the hand
- Chain with low kick back characteristics (guard links or ramp on depth gauges)- reduces kick back
- Guide bar cover - protects and covers the bar and chain
Select appropriate maintenance tools for the power unit and cutting systems in accordance with operator’s handbook
Assessor will observe you correctly pick the right tools.
Scrench, screwdriver, depth gauge, chainsaw file, depth gauge file, dressing bar file, brush, spark plug electrode gap measurement device,
Who are the providers of industry good practice
Forestry industry safety accord (FISA)
Regional forestry bodies
Arboricultural forestry advisor group AFAG
Arboricultural Association (AA)
Other
Explain the function and maintenance requirements of individual components
Spark plug - provides ignition. Maintenance may include inspection, cleaning and checking of the electrode gap. Make a comment on the colour of spark plug deposits (gives us an idea if engine is running rich or lean)
Practical
- engine cover and spark plug removed
- plug cleaned or replaced as necessary
- wear/damage assessed
- gap size checked and set if necessary
Air filter - prevents debris entering the carburettor and helps maintain the correct air/fuel ratio, maintenance may include inspection and thorough cleaning.
Practical:
- Excess debris removed from around air filter prior to removal
- filter removed, protecting carburettor
- Filter inspected, maintained and cleaned appropriate to condition
- Filter refitted correctly.
Chainbrake - stops the chain, Maintenance may include inspection of the chainbrake system, cleaning or replacement.
Practical:
- clear debris from chain brake mechanism/clutch housing
- chain brake band checked for wear
Cooling system - keeps the engine cool and prevents the engine
from over heating. Maintenance may include
inspection, and cleaning
Practical:
- remove covers where appropriate and remove excess debris from fins and cylinder
Exhaust system - directs fumes away from the operator,
maintenance may include inspection, security of
nuts/bolts and removal of residue
Practical::
- check all nuts and bolts for security
- remove excess residue from the silencer
- check condition of spark arrestee if applicable
Clutch/drive system - provides drive to the chain; maintenance may include inspection, cleaning and removal of the
clutch
Practical:
For inboard clutch:
- remove retaining clip
- dismantle sprocket assembly
- sprocket checked for wear and condition
- clean crankshaft stub and grease needle cage where appropriate
- reassemble
Maintenance for outboard clutch:
- if appropriate piston locked as manufacturers guidance
- unscrew clutch weights to manufacturers recommendation
- Clean crank shaft stub and grease needle cage where appropriate
- reassemble.
Sprocket - drives/pushes the chain along the guidebar,
maintenance may include inspection and replacement due to wear exceeding manufacturers tolerances.
Starter mechanism - engages the flywheel, maintenance may include cleaning, inspection
Practical:
- starter cover removed and air ways cleaned.
- cord and coil spring tension released
- cord inspected for wear
- cord and coil spring re-tensioned
- re-coil checked to ensure spring tension is correctly applied
- pull toggle checked for security
Greasing/lubrication - may prevent excess wear of components
Practical:
- greasing of component parts as appropriate
Guidebar - carries the chain, maintenance may include
inspection, general upkeep, cleaning or replacement
Practical:
- identification of uneven, damaged rails and maintain as appropriate
- checking the straightness of bar
- checking the the bar groove depth
- identification of any over heating (blueing of metal), cracking and burring
- removing burrs
- clearing the bar grooves and oil holes
- inspecting the sprocket nose for security and condition
- greasing the bar nose and sprocket if applicable
- turning the bar following maintenance to reduce wear
Chain - carries the cutting components, maintenance may include inspection and sharpening.
Practical:
- checking cutters for damage and selecting the first cutter to sharpen
- having the chain secured in a chain vice or on bar in a bench vice or timber vice
- selecting and using a file of the correct size with a handle fitted to sharpen all of the cutters
- maintenance of top and side plate angles throughout sharpening of the whole chain
- ensuring a consistent cutter length is maintained
- removing burrs when applicable
- maintaining the height and profile of depth gauges
Fuel and oil filters - prevents debris entering the engine components (fuel filter) and guide bar (oil filter). Maintenance may include cleaning or replacing if appropriate.
Practical:
- Fuel and oil cap removed
- filter located and removed where applicable from tank using appropriate tool.
- condition of filter determined
- (oil tank) cleaning procedures using non flammable detergents followed by rinsing and drying
- replacement as appropriate (oil and fuel)
What hazards are associated with battery powered equipment
Incorrect compatibility of battery/machine
Machine being live when the battery is in place
Machine may not have an on/off switch
Battery misalignment
Battery storage
Battery disposal
Battery dislodging and falling from the machine
Electric shock
Short circuiting and combustion when charging
Malfunction due to water contamination
Lack of power
Charge time and charging requirements
Other
