4. Routine maintenance, inspection and operational testing of the emergency generator and associated. components must be overseen by a properly trained person [see MSFC(07), Sec. 604.5; NFPA. 99(99), Sec. 3-4.4.1.1(b)3; NFPA 110(99), Sec. 6-4.7; NFPA 110(02), Sec. 8.4.7].
If rain and wet roads are a concern, you should consider replacing your tires when they reach approximately 4/32 of remaining tread depth. Since water can't be compressed, you need enough tread depth to allow it to escape through the tire's grooves.f two of your tires have a lot of remaining tread depth, but you need to replace the other two because they were damaged or have worn out, you should replace them with a pair of tires that come as close as possible to matching your existing tires.
1 After researching many web pages and sources about using Nitrogen to inflate car tyres I summarise the information I have found here. 2  Car tyres are normally inflated with compressed air. 3  Air is approximately 80% Nitrogen, 20% Oxygen.4  Nitrogen is comparatively inert, Oxygen is a reactive gas.ack to Technical Index Page. 1  After researching many web pages and sources about using Nitrogen to inflate car tyres I summarise the information I have found here. 2  Car tyres are normally inflated with compressed air. 3  Air is approximately 80% Nitrogen, 20% Oxygen. 4  Nitrogen is comparatively inert, Oxygen is a reactive gas. 5  The Nitrogen used for 6  ... N