C6.4 Maintenance Flashcards
When to use a PTW
When work method is critical to safety
when working on complex machinery
Purpose of PTW
management check of what is necessary for an operation, that it’s been done and to inform workers how to do the work
elements of a PTW
definition of job to be done specifies risks involved identifies controls to be implemented responsibilities time limit for task authoriser for work acceptor of permit hand over arrangements
PUWER reg 19
work equipment is provided with suitable means to isolate it from all its sources of energy
isolation methods
locked in the off position by padlock or key switch
key retained by person in danger
remove energy containing material, e.g. batteries
disconnection of pipes
spades in pipes
work with unguarded machinery
reduce to minimum
remote lubrication methods
use of jigs, push sticks, clamps, holders
SSW
use of tools to keep clear of hazard, e.g. swarf rake
replace guards after setting a machine
ensure stopped before cleaning away waste materials
sources of energy
electrical hydraulic pneumatic gravity steam thermal
