A35 FDNY EXAM 2024 GRADED A

The Cooling System - The cooling system should be tested every 6 months to make sure that it is working correctly. The water supply control valves should always be open when the air compressor is in operation. The Air Intake system - The air intake filter should be inspected and cleaned weekly. It should be replaced every 6 months. If at any time the filter is damaged it should be replaced. The lubrication Oil - The Certificate of Fitness holder should refer to the manufacturer's manual to determine the safe operating temperatures of the lubrication oil. The level of the lubricating oil (lube oil) should be checked weekly using the dipstick. The lube oil is designed to lubricate the moving parts on the air compressor. The oil used must be of the grade specified by the compressor manufacturer. The lube oil should be replaced every six months. The Automatic low-level Inidicator - The automatic low-level oil indicator switch should be tested every 3 months. This is tested by manually draining the oil from the air compressor when it is running. The indictor switch will shut down the air compressor within a few minutes if it is working correctly. When testing the compressor in this way, do not run the air compressor for a long period of time. If the switch is defective, it should be repaired or replaced. The air compressor should be refilled with oil before it is used again. The air receiver - Water builds up in the moisture separator assembly and the air receiver must be drained daily; however, there is one exception. Do not drain moisture from the air compressor when the ambient temperature drops below 40 degrees Fahrenheit. This is done by opening the drain valve and draining off the excess water. All safety valves should be manually operated every week. This is to ensure that they will function correctly in case of an emergency. It is recommended that the air receiver tank be pressure tested at a minimum of every 5 years by a qualified technician.