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For plunger-type manual injectors, insert the purge fitting into the low-loss fitting. Inject the dye into the hose assembly until the dye exits the purge fitting.
An additional hose assembly is recommended for each lubricant type, so no dye is wasted.
Important: The valve core on a system's service port must be fully depressed to allow dye to enter the system. Always make sure the hose coupler is fully threaded onto the service port before turning the handle of a plunger-type manual injector.