[26] On 1 December 2016 Mr Ballam was working a day shift that had commenced at 6 am.
[27] At some time after 4 pm, Mr Ballam and Mr Arvidson were given the task of putting a Grader on the apron in a bay of the workshop. Once on the apron they were to jack up the Grader and put stands under it. The purpose of this exercise was to allow Mr Fox to remove the tyres from the Grader.
[28] Before commencing the work of moving the Grader, neither Mr Ballam nor Mr Arvidson completed a JHA. However, Mr Arvidson completed a 'Take 5'. Mr Ballam did not. Mr Ballam gave evidence that it was the first time that he had done this particular task.[22]
[29] The Grader was moved onto the apron by Mr Arvidson. Mr Ballam directed him through the use of hand signals. Mr Ballam then used a forklift to fetch two stands that would be placed under the back of the Grader in order to stabilise it for the removal of the tyres.
[30] Mr Arvidson lowered the rippers to the ground which caused the rear body of the Grader to push off the ground. Mr Ballam reports having given Mr Arvidson a signal to stop. Mr Arvidson is said to have showed him his open hands (indicating that his hands were not placed on Grader's operating controls) and Mr Ballam then pushed the right hand stand under the Grader using both hands and feet.
[31] The Appellant referred to various photographs and diagrams to assist us in understanding the nature of the Alleged Isolation Breaches. The photographs and diagrams are attached to this Decision at Attachments A, B and C. Attachment C includes reference to various positions on the Grader. Those positions are referred to when describing the Alleged Isolation Breaches.
[32] The first photograph, Attachment A,[23] shows the Grader. In the foreground of the photograph is the rear of the Grader and what the Deputy President refers to in her Decision as the rippers.[24] There are two sets of tyres that can be seen on the right-hand of the Grader.[25] These are the rear tyres of the Grader. There is another two sets of tyres on the left-hand side that were to be removed.[26] If one looks toward the background of the photograph the blade of the Grader is protruding to the right of the second tyre.[27]
[33] Counsel referred us to a diagram that was an imprint of the side view of the Grader labelled with various numbers, Attachment B.[28] At the left-hand side of the diagram is the rear of the Grader with the rippers. The cabin is in the middle of the Grader, just below the cabin to the right-hand side, is the blade, and to the far right-hand side are the front tyres.[29]
[34] An overhead view of the Grader was provided in another diagram, Attachment C.[30] This diagram showed the various tyres and the tyre positions which were numbered 1, 2, 3, 4, and 5.[31]
[35] Counsel explained that the back rear tyres that were to be removed were tyres 3 and 5. The area for the placement of the stands, which were the subject of the First Alleged Isolation Breach, are shown through the use of arrows and there are dark shaded points. The location can be seen between the rear tyres and the ripper. The isolation switch is a black dot inside tyre 3, between the tyre and the main body of the cabin, on the main body of the Grader. One has to go inside tyre 3, lean over into the space to flick the switch and to attach personal isolation locks.[32]
[36] On the other side of the vehicle, inside tyre 4, there are more arrows. The Appellant submitted that he thought this was an attempt to depict where Mr Ballam was with his arm leaning over when he was adjusting the articulation pin, to which we will refer to shortly.[33]