Gradall (Download)
Gradall Excavators 1 Introduction to G radalls The Gradall is a type of Hydraulic Excavator that utilizes a rotational, telescoping and titling boom rather than a knuckle boom. The Gradall comes in three main types wheeled on-road, wheeled off-road and tracked. Telescoping Boom Knuckle Boom 2 Uses The Gradall is a fairly versatile tool that can be used for: -Excavation -Demolition -Mining -Brush Clearing -Industrial Maintenance -Railroad Maintenance 3 Safety Concerns When using a Gradall the driver and all workers in the vicinity need to be aware of the boom swing and more notably the counterweight swing The driver’s view is often obstructed which can lead to many accidents Counterweight hanging over cab 4 OSHA Fatality Statistics for Gradalls During the period from 1990 thru 2007 five deaths involving Gradall equipment were investigated by OSHA. Three of these five deaths were classified as a caught-in-between involving the counterweight Source: Extracted from OSHA Accident Investigation Data 1990-2007 5 Case Study An operator was advised to fill a small hole in the road with the Gradall . He was being helped by another worker. The operator was aware of the worker’s position until he swung the boom to load gravel. He lost sight of the worker and swung the boom back crushing the worker between the counterweight and the cab. The worker had moved to put away his shovel. The worker died from his injuries. Source: Extracted from OSHA Accident Investigation Data 1990-2007 6 OSHA Regulations No specific OSHA regulation’s pertain to the Gradall Source: Extracted from OSHA Accident Investigation Data 1990-2007 7 Safety Equipment Basic PPE should be worn at all times, this includes: Hard hat Work boots Hearing protection Safety glasses Reflective safety vest Note: Thick work gloves should be used only if they do not interfere with control operation 8 Operational Safety The Gradall should have a certified operator at all times. The operator can be certified through Gradall’s SAF-T training course. Gradall can be contacted at 330-339-8468 for more info on the operators training course 9 Before Using The Gradall Scout the work to be done Formulate a plan with employees on how work will be accomplished Know the machines limits Make sure all systems are checked and functional Check to make sure attachments are functional and properly attached 10 Think Safely Work Safely 11