en
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The chain brake should always be engaged before lowering a
running saw onto its strop.
Operators should always ensure that the saw has sufficient fuel
before undertaking critical cuts.
One-hand use of the chain saw
Operators should not use tree service chain saws one-handed in
place of unstable work positioning or in preference to a handsaw
when cutting small diameter wood at the branch tips.
Tree service chain saws should only be used one-handed where:
- the operator cannot gain a work position enabling two-handed
use; and
- they need to support their working position with one hand; and
- the saw is being used at full stretch, at right angles to and out
of line with the operator’s body (Fig. 6).
Operators should never:
- cut with the kickback zone at the tip of the chain saw guide bar
- ‘hold and cut’ sections
- attempt to catch falling sections
Freeing a trapped saw
If the saw should become trapped during cutting, operators
should:
- switch off the saw and attach it securely to the tree inboard (i.e.
towards the trunk side) of the cut or to a separate tool line;
- pull the saw from the kerf while lifting the branch as necessary;
- if necessary, use a handsaw or second chain saw to release
the trapped saw by cutting a minimum of 12 in. away from the
trapped saw.
Whether a handsaw or a chain saw is used to free a stuck saw,
the release cuts should always be outboard (toward the tips of the
branch), in order to prevent the saw being taken with the section.
6
SAFETY RULES