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BS EN 16517:2021:2022 Edition

$167.15

Agricultural and forestry machinery. Mobile yarders for timber logging. Safety

Published By Publication Date Number of Pages
BSI 2022 40
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This document gives safety requirements, and the means of verification, for the design and construction of mobile yarders for logging of forest products and their mounting. It counts for all logging operations with cable yarders both in sloped and flat terrain. In addition, it specifies the type of information on safe working practices (including residual risks) meant to be provided by the manufacturer. It deals with the significant hazards (as listed in Table 1), hazardous situations and events relevant to mobile yarders used as intended and under the conditions of misuse foreseeable by the manufacturer (see Clauses 4 and 5). Emission of noise (with regard to airborne noise) is not covered by this document. It is not applicable to: – rope splicing; – ancillary loaders or cable cranes; – cableways for material transport (other than wood); and – skidder winches (skidding). The specifications of cabin in this context are only relevant for the yarder or a yarder-loader combination. The cabin and the chassis of the vehicle (prime mover), to which the yarder is mounted are not part of this document. This document is not applicable to mobile yarders manufactured before the date of its publication.

PDF Catalog

PDF Pages PDF Title
2 undefined
10 1 Scope
2 Normative references
12 3 Terms and definitions
16 4 List of significant hazards
20 5 Safety requirements and / or protective risk reduction measures
5.1 General
5.2 Structural calculations
5.2.1 General
21 5.2.2 Information to be given in the calculation
5.2.3 Loads and forces
5.2.4 Load combinations
22 5.3 Stress analyses
5.4 Mechanical arrangements
5.4.1 Tower
5.4.2 Guying
5.4.3 Stabilizers
5.4.4 Securing for transport
5.5 Rope drive – Drive mechanism
5.5.1 General
23 5.5.2 Ropes
5.5.2.1 General
5.5.2.2 Steel wire ropes
5.5.2.3 Synthetic rope
24 5.5.3 Winches
5.5.3.1 Powered winches
5.5.3.2 Manual winches
5.5.4 Designs of blocks, drums, traction sheave
5.5.5 Brake
25 5.6 Carriage
5.6.1 Derailing
5.6.2 Stopping devices
5.6.3 Carriage clamp
5.6.4 Drums and pulleys
5.6.5 Load balance
5.6.6 Diameter of pulley and roller
26 5.7 Hydraulic system
5.8 Limiting and indicating devices
5.8.1 Load limiter
5.8.2 Motion limiters
5.8.3 Speed limiters
5.8.4 Acoustic/visual warnings
5.8.5 General safe stop (GSS)
5.9 Controls
5.9.1 General
27 5.9.2 Control from different control stations
5.9.3 Controls automatic returning to neutral position
5.9.4 Controls with holding position
5.9.5 Emergency devices against uncontrolled ‘carriage’ downhill movement
5.9.6 Symbols
5.10 Control stations
5.10.1 General
28 5.10.2 Operator cabin
5.10.3 Safety
5.10.4 Ground control
5.10.5 Control station for setting up
5.11 Platform and ladder
5.11.1 Platform
5.11.2 Ladder
29 5.11.3 Strength and rigidity of components
5.12 Electrical systems
5.13 Assembly of machine components
5.13.1 Attachment to three-point hitch system
5.13.2 Combination of components of different manufacturers
6 Verification of safety requirements and measures
30 7 Information for use
7.1 Mounting instructions
7.1.1 General
7.1.2 Instructions for assembly
31 7.2 Markings
7.2.1 General
7.2.2 Manufacturer’s plate
32 7.2.3 Installer’s plate
7.2.4 Load signs
7.2.5 Warnings
7.3 Operator’s manual
34 Annex A (informative)Risk zone
36 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC aimed to be covered
BS EN 16517:2021
$167.15