Spreadsheet: 06c77395-6f1e-4d12-9904-4db7d9d8212a
Sheet: MOC

DP 5. Machine Operation & Controls | Potential Unwanted Events
Detailed Potential Unwanted Events (PUEs) | Musculoskeletal injury from manual tasks risk factors | Struck by protrusion into work space | Harm from adverse environmental conditions | Harm from whole-body vibration exposure | Collisions due to restricted visibility | Loss of machine stability | Inadvertent/erroneous operation of controls | Incorrect understanding of displays or labels | Missed or ineffective communication | Alarms being undetected, misunderstood or ignored
1. Musculoskeletal injury or illness due to workstation design, including seat and seatbelt design, openings and cab height, that promotes biomechanically compromised postures for the 5th percentile female to 95th percentile male body dimensions including:     a. Inappropriate or compromised head / neck posture due to restricted visibility and/or control and display positioning     b. Inappropriate or compromised hand/wrist posture due to mechanism required to manipulate/grasp control     c. Inappropriate or compromised shoulder and back posture due to extended reach to controls     d. Excessive forces required to appropriately operate buttons, triggers, hand & foot controls, levers and other devices     e. Inappropriate or compromised posture due to lack of adjustability of seat, pedals, steering wheel / controls, monitors/displays     f. Postures arising from  poor seat and belt design, resulting in improper operator utilization e.g.          i. Inadequate lumbar support and adjustability          ii. Inadequate reduction of exposure to whole-body vibration | 5.1 |  |  | 5.1
2. Injury due to workstation design & external structures, including:      a. Protruding structures      b. Sharp edges      [NAME] not adequately fixed to equipment      d. Roll over protection structures (ROPS)      e. Intrusion into the cab by other equipment, such as the tray of another haul truck |  | 5.2
3. Injury or illness from physical and/or mental fatigue due to:      a. Inadequate control of environmental conditions in the cab e.g. heat, cold, dust      b. Inadequate illumination of cab and displays       c. Glare from reflective sources      d. Whole-body and hand/arm vibration |  |  | 5.3 | 5.3
4. Harm from impaired visibility (including distorted or degraded vision) or impaired awareness of hazards in a variety of operating conditions due to:     a. inadequate lighting for headlights, tail, reversing, turn, brake, strobe, flashing lights, etc     b. inadequately lit inspection areas     c. lack of fit for purpose receptacles for light fittings that suit standard & alternative lights     d. devices (mirrors, cameras, windscreen wipers and washers etc) that are not fit for purpose |  |  |  |  | 5.4
5. Harm from restricted or impeded operator vision of the surrounding environment and for tool operation, due to:      a. Cab layout, location of windows and external structures (catwalks, handrails, protective structures, line of site mirrors, etc.)      b. Poorly located or designed internal attachments, such as screens, hardware, equipment displays, sun blinds, etc |  |  |  |  | 5.5
6. Harm from collisions due to persons and small vehicles being encouraged/forced, by the equipment design, to locate on the operator’s blind side |  |  |  |  | 5.6
7. Harm from loss of machine stability while operating, tramming, articulating or relocating due to       a. Inappropriate gear selection or over speed conditions on a grade      b. Working outside limits of lifting capacity and operating radius      c. Incorrect load placement or overloading, which may cause loss of steering control      d. Failure of stability devices (eg.  outriggers)      e. Failure to warn operator when design limits are being exceeded |  |  |  |  |  | 5.7
8. Harm from incorrect use of equipment controls, incorrect/inaccurate calibration or ineffective maintenance due to poorly designed controls and displays, including:      a. lack of understanding  or misunderstanding about function of the control or display      b. counter-intuitive design and configuration      c. inconsistency in display or function in comparison with other controls or displays (within vehicle)      d. not appropriately considering simultaneous control operation      e. ability for unintentional operation or selection       f. unexpected operating mode (mode errors)      g. frequently used and/or safety critical controls not being located within the zone of reach      h. insufficient clearance around controls and other workstation equipment |  |  |  |  |  |  | 5.8
9. Harm from misinterpretation of information due to displays or labels being:      a. Illegible      b. Incomprehensible      c. Not visible      d. Inappropriately located      e. Not using universal symbols or standardized terminology      f. Not durable |  |  |  |  |  |  |  | 5.9
10. Harm due to difficult access to communication systems, such as no two-way radio provision in cabin |  |  |  |  |  |  |  |  | 5.1
11. Harm, including mental overload, from warnings and alarms being overlooked, ignored or not heard due to these:       a. Not being seen/heard or understood       b. Not being reliable or sufficiently sensitive       c. Being over sensitive       d. Not fully integrated or interlocked with other warning systems       e. Being over-used,  tampered with or compromised in any way e.g. being turned off |  |  |  |  |  |  |  |  |  | 5.11