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Sealing the N55 Bed Plate - Attempt 2 - Success!
After researching the adhesive cartridge, I learned it's a standard Nordson EFD product meant to be pressurized pneumatically (rather than with a plunger). Fortunately I was able to borrow the correct fitting from my work, but you could also make something similar fairly easily.
On the second trial, again I used the orange tip (with no needle) and pressurized the air compressor to about 40 psi. As long as I held the orange tip firmly against the one-way valve fitting, I was able to inject sealant with almost no spilling or overflow. I maintained flow until I saw adhesive spilling out both the left and right sides of the block.
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