31 WEBM1000 Safety Section (D6T LGP (OEM)) Sound Information and Vibration Information Table 2 Table 3 (1) If equipped Note: Refer to “ISO/TR 25398 Mechanical Vibration - Guideline for the assessment of exposure to whole body vibration of ride on operated earthmoving machines” for more information about vibration. This publication uses data that is measured by international institutes, organizations and manufacturers. This document provides information about the whole body exposure of operators of earthmoving equipment.
Refer to Operation and Maintenance Manual, SEBU8257, “The European Union Physical Agents (Vibration) Directive 2002/44/ EC” for more information about machine vibration levels. a. Tire pressures b. Brake and steering systems c. Controls, hydraulic system and linkages 3. Keep the terrain in good condition. a. Remove any large rocks or obstacles. b. Fill any ditches and holes. c. Provide machines and schedule time in order to maintain the conditions of the terrain. The Caterpillar suspension seat meets the criteria of “ISO 7096”. This represents vertical vibration level under severe operating conditions. This seat is tested with the input “spectral class EM6”.
The seat has a transmissibility factor of “SEAT 4. Use a seat that meets “ISO 7096”. Keep the seat maintained and adjusted. a. Adjust the seat and suspension for the weight and the size of the operator. The whole body vibration level of the machine varies. There is a range of values. The low value is 0.5 meter per second squared. The machine meets the short term level for the design of the seat in “ISO 7096”. The value is 1.61 meter per second squared for this machine. b. Inspect and maintain the seat suspension and adjustment mechanisms. 5. Perform the following operations smoothly. a. Steer Guidelines for Reducing Vibration Levels on Earthmoving Equipment b. Brake Properly adjust machines.
Properly maintain machines. Operate machines smoothly. Maintain the conditions of the terrain. The following guidelines can help reduce the whole body vibration level: c. Accelerate. d. Shift the gears. 1. Use the right type and size of machine, equipment, and attachments. 6. Move the attachments smoothly. 7. Adjust the machine speed and the route in order to minimize the vibration level. 2. Maintain machines according to the manufacturer's recommendations. a. Drive around obstacles and rough terrain.
“ISO Reference Table A - Equivalent vibration levels of whole body vibration emission for earthmoving equipment.” Machine Type Typical Operating Activity Vibration Levels Scenario Factors X axis Y axis Z axis X axis Y axis Z axis Track-Type Tractors dozing 0,74 0,58 0,70 0,31 0,25 0,31 ripping 1,25 1,19 1,02 0,40 0,41 0,28 transfer 0,87 0,80 0,97 0,43 0,40 0,34 “ISO Reference Table A - Equivalent vibration levels of whole body vibration emission for earthmoving equipment.” Machine Type Typical Operating Activity Vibration Levels Scenario Factors X axis Y axis Z axis X axis Y axis Z axis Pipelayers(1) work cycle 0,21 0,23 0,24 0,09 0,11 0,14