By Bernard R Kestel
The Chainsaw Operator's handbook is the fundamental defense software for all specialist and leisure clients of chainsaws. The e-book contains easy-to-follow charts, color illustrations and directions to steer chainsaw clients via easy pass slicing, basic tree felling and challenge tree felling, together with computer assisted tree felling suggestions The sections of the booklet correspond to the nationwide Competency criteria for chainsaw operators, which shape the root for accreditation in govt organizations. those criteria are noted in every one part. The 6th variation has been considerably revised in response to new safeguard measures and competency criteria and likewise illustrated with new color line drawings and color photos.
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Additional resources for Chainsaw Operator's Manual: The Safe Use of Chainsaws
Depth gauge too high Chain loses self feeding characteristics and extra pressure is required to get the chain to cut. Leads to rapid wear on all components. Gives excessive vibration and chain chatter. Uneven depth gauge setting Sawchain sharpening Check depth gauges every 3rd or 4th sharpen. In order to maintain maximum performance throughout the entire life of the chain, the depth gauges must be lowered progressively as the cutter’s length is reduced. The potential for kick-back is reduced by rounding the front of the depth gauge.
2. It is very important to observe the tensions in the wood, particularly on large branches. g. eucalyptus (hardwoods) B A B A A B C C C B A C Refer to the section on ‘Types of binds’ for the correct cutting techniques Step cut When limbing large limbs it may be necessary to incorporate a step cut. • Step is located on stationary portion of limb. • Chainsaw will not fall down with moving limb. 48 | Chainsaw Operator’s Manual 2 1 Level 1 Butt trimming Butt trimming Butt trimming or pre-limbing trees may be necessary in order to remove branches that may get in the way during the felling operation.
Always use the correct diameter file for the particular chain. File diameter is governed by the chain’s pitch. 5 mm to 6 mm) Generally the larger diameter file is used until the cutter is half worn, then smaller diameter file is used. Points to remember when filing: • File using a full length stroke. • The art of sharpening is to ‘hone’ rather than the removal of a lot of metal. • Don’t attempt to sharpen an oily chain. • Cut some dry wood to clear oil from chain. • File a little bit often, rather than a lot occasionally.