128. The pneumatic propulsion control system used on your anchor-handling supply vessel uses a diaphragm-operated relay valve as shown in the illustration. Periodically, the valve is to be disassembled for cleaning and inspection. What statement best describes the proper method for servicing the in-line strainers

128. The pneumatic propulsion control system used on your anchor-handling supply vessel uses a diaphragm-operated relay valve as shown in the illustration. Periodically, the valve is to be disassembled for cleaning and inspection. What statement best describes the proper method for servicing the in-line strainers

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