Installation of Air Handler, Air & Water Cooled Chillers & Pumps
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Published by SALUSRisk Assessment for Installation of Air Handler, Air & Water Cooled Chillers & Pumps
1. Potential Hazards
- Mechanical Hazards: Risk of injury from moving parts during installation.
- Electrical Hazards: Risk of electric shock from handling electrical components.
- Chemical Hazards: Exposure to refrigerants which can cause frostbite or inhalation risks [1].
- Ergonomic Hazards: Risk of musculoskeletal disorders from manual handling of heavy equipment.
- Environmental Hazards: Risk of fluid spillage and contamination [2].
2. Risk Assessment
- Mechanical Hazards: Likelihood is medium, severity is high due to potential for serious injury.
- Electrical Hazards: Likelihood is low with proper precautions, severity is high.
- Chemical Hazards: Likelihood is medium, severity is high due to potential for serious health effects [1].
- Ergonomic Hazards: Likelihood is high, severity is medium.
- Environmental Hazards: Likelihood is low, severity is medium [2].
3. Control Measures
- Elimination/Substitution: Use mechanical aids to reduce manual handling.
- Engineering Controls: Ensure all equipment is properly grounded and insulated to prevent electrical hazards.
- Administrative Controls:
- PPE: Provide protective goggles and gloves for handling refrigerants [1].
4. Monitoring and Review
- Regularly inspect equipment for wear and damage.
- Conduct periodic safety audits to ensure compliance with safety protocols.
- Review incident reports to identify trends and areas for improvement.
5. Recommendations
- Schedule regular training sessions on the safe handling of refrigerants and electrical safety.
- Use lifting equipment to handle heavy components to reduce ergonomic risks.
- Ensure all workers are equipped with appropriate PPE and trained in its use.
- Establish a clear communication protocol for reporting hazards and incidents.
By implementing these measures, the risks associated with the installation of air handlers, chillers, and pumps can be significantly reduced, ensuring a safer working environment.
Sources used for this answer
[1] CAT 345D, 349D, and 349D2 Excavators Operation and Maintenance Manual
Page 280
Open source documentSource excerpt
i05805860 ## Receiver Dryer (Refrigerant) Replace SMCS Code: 7322-710; 7322-510 <!-- image --> Personal injury can result from contact with refrigerant. Contact with refrigerant can cause frost bite. Keep face and hands away to help prevent injury. Protective goggles must always be worn when refrigerant lines are opened, even if the gauges indicate the system is empty of refrigerant. Always use precaution when a fitting is removed. Slowly loosen the fitting. If the system is still under pressure, release it slowly in a well ventilated area. Personal injury or death can result from inhaling refrigerant through a lit cigarette. Inhaling air conditioner refrigerant gas through a lit cigarette or other smoking method or inhaling fumes released from a flame contacting air conditioner refrigerant gas, can cause bodily harm or death. Do not smoke when servicing air conditioners or wherever refrigerant gas may be present. Use a certified recovery and recycling cart to properly remove the refrigerant from the air conditioning system. ## NOTICE If the refrigerant system has been open to the outside air (without being plugged) for more than 30 minutes, the receiver-dryer must be replaced. Moisture will enter an open refrigerant system and cause corrosion which will lead to component failure. Refer to Service Manual, 'Air Conditioning and Heating R-134a for All Caterpillar Machines' for the proper procedure to change the receiver-dryer assembly and for the procedure to reclaim the refrigerant gas. i05252968 ## Rollover Protective Structure (ROPS) - Inspect SMCS Code: 7323-040; 7325-040 S/N: FLA1-Up S/N: YAE1-Up S/N: KFH1-Up S/N: RBJ1-Up S/N: NLM1-Up S/N: KHS1-Up S/N: GAX1-Up S/N: LKY1-Up <!-- image --> Inspect the ROPS for loose bolts or for damaged bolts. Replace any damaged bolts or missing bolts with original equipment parts only. - · Tighten the M16 bolt (1) to125 ± 20 N·m (92 ± 15 lb ft). - · Tighten the M24 bolt (2) to 425 ± 50 N·m (315 ± 40 l…
[2] CAT 336 GC Excavator Operation and Maintenance Manual
Page 322
Open source documentSource excerpt
<!-- image --> Illustration 570 (1) Oil drain plug Note: Refer to Operation and Maintenance Manual, 'General Hazard Information' for information on Containing Fluid Spillage. - 2. Remove drain plug (1). Allow the oil to drain into a suitable container. - 3. Clean the drain plug and inspect the O-ring seal. If wear or damage is evident, replace the drain plug and/or the O-ring seal. - 4. Install drain plug (1). - 5. Open the access door on the right side of the machine. <!-- image --> Illustration 571 g06284424 (2) Oil fill cap (3) Sight gauge ## NOTICE Do not overfill the housing for the pump coupling. Overfilling will the cause the engine oil to overheat and engine damage can result. Sight Gauge <!-- image --> - 6. Remove fill cap (2). Fill the housing with new oil to area (A) of sight gauge (3). See Operation and Maintenance Manual, 'Lubricant Viscosities' and Operation and Maintenance Manual, 'Capacities (Refill)'. - 7. Clean and install the fill cap. - 8. Check for leaks. - 9. Close the access door on the right side of the machine. - 10. Install the cover plate. i07327147 ## Pump Coupling Oil Level Check SMCS Code: 5062-535 <!-- image --> Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.
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