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Machine guarding shall be in place per equipment manufacturer <br />specifications. The following methods of guarding shall be used: <br />• Fixed enclosures (the preferred method). They prevent access to <br />dangerous parts by enclosing the hazardous operation with <br />barriers. <br />• Interlocking devices. These automatically stop a machine if a <br />barrier is removed or a door to the operating parts is opened. The <br />device may also be in the form of a barrier that quickly stops the <br />machine when any part of the operator's body contacts the barrier. <br />The barrier may be a bar, a rod, a wire, or an electric -eye beam <br />extended across the danger zone. <br />• General -Lockout, blocking, or equivalent measures shall be <br />employed to ensure that systems and equipment that need to be <br />deactivated (to do the planned service) are not reactivated at <br />inopportune times. <br />Excavation Cave-in's <br />Do not leave open excavations or trenches unattended or uncovered. <br />In accordance with 29 CFR 1926.652 and CCR Title 8 Section 1540-1541 the <br />walls and faces of excavations and trenches over 4 feet deep must be <br />guarded by either a shoring system, sloping of the ground, or some other <br />equivalent means, such as trench boxes (movable enclosures for workers) <br />or trench shields (movable shoring systems). Trenches/ excavations less <br />tilan 4 feet deep where hazardous ground movement could occur (e.g., <br />earthquake) shall also be excavations protected against collapse. <br />A competent person (e.g., Certified Engineering Geolo(y <br />ist) should make <br />any inspections of trenches and excavations to assure adequate slopes, <br />shoring, and bracing, and to check for evidence of possible slides or cave- <br />ins. More frequent inspections may be necessary as work progresses or <br />after rain or snowfall (if applicable). <br />Control s -General: <br />Machine Guarding <br />Machine guarding shall be in place per equipment manufacturer <br />specifications. The following methods of guarding shall be used: <br />• Fixed enclosures (the preferred method). They prevent access to <br />dangerous parts by enclosing the hazardous operation with <br />barriers. <br />• Interlocking devices. These automatically stop a machine if a <br />barrier is removed or a door to the operating parts is opened. The <br />COSTERA WASTE &ENVIRONMENTAL, INC. 11 <br />MAY 4, 2021 <br />