Honeywell North 5400,7600, RU6500 Series Instruction Manual

3. Reassemble your facepiece after following all steps outlined on the printed manual in the INSPECTION section. Use the REPLACEMENT PARTS schematic at the end of the mentioned User Instructions or on the Honeywell Facepiece Replacement Part Poster. a. Inspect all components as they are being assembled. Replace any that are damaged or missing. Place the grommet (P/N 80871A) in the lens, making sure that the larger flange is on the inside and the inner and outer flanges lie flat against the lens. b. Put one set of inhalation valves (P/N 770017) on the cartridge connectors (P/N 770016), making sure they lie flat against the connectors. c. Insert the cartridge connectors by pushing through the grommets from the inside of the facepiece. Make sure the connectors are all the way through and lying flat against the flanges. d. Insert the exhalation valve into the exhalation valve seat, (P/N 54007), so the stem is showing on the side with the P/N information. Pull gently on the tab until you hear a low click as the valve locks in place. e. Make sure the flat black O-ring on the exhalation valve is in place and lying flat. Insert the assembly into the exhalation port. Note that the port is uniquely keyed so there is only one way to insert the exhalation assembly. Turn clockwise 45 degrees until it locks into place. f. Snap the exhalation valve cover (P/N 54008) onto the assembly so the Honeywell logo is right side up. Note that there are two slots at 3 and 9 o’clock that fit over the two wings on the assembly. g. Put the remaining inhalation valves (P/N 770017) on the valve seats (P/N 80814A) for the oral/nasal cup, making sure they lie flat against the seats. Insert the seat and inhalation valve assembly into the oral/nasal cup. h. Work the oral/nasal cup onto the groove of the exhalation housing that is furthest from the lens. i. Make sure the flat black O-ring on the exhalation valve is in place and lying flat. Insert the assembly into the exhalation port. Note that the port is uniquely keyed so there is only one way to insert the exhalation assembly. Turn clockwise 45 degrees until it locks into place. j. Snap the exhalation valve cover (P/N 54008) onto the assembly so the Honeywell logo is right side up. Note that there are two slots at 3 and 9 o’clock that fit over the two wings on the assembly. k. Put the remaining inhalation valves (P/N 770017) on the valve seats (P/N 80814A) for the oral/nasal cup, making sure they lie flat against the seats. Insert the seat and inhalation valve assembly into the oral/nasal cup. l. Work the oral/nasal cup onto the groove of the exhalation housing that is furthest from the lens. RU6500 RESPIRATOR 1. Remove the respirator components: a. Remove the oral/nasal cup by gently pulling it away from the nozzle assembly (Figure 31). b. Remove the inhalation valve seats from the oral/nasal cup (Figure 32). c. Pull out the inhalation valves from the valve seats (Figure 33). d. Dismount the nozzle cover from the assembly by pushing the tabs inwards and lifting the cover upwards (Figure 34). e. To remove the nozzle, grasp the outside of the lens with both hands so that both thumbs can push inward and downward (Figure 35). f. Remove the exhalation valve from the nozzle by pulling it frontward (Figure 36). g. To remove the cartridge connectors, lift the locking tab and rotate the connector counter-clockwise, then push inwards the facepiece (Figure 37). h. Remove the O-rings from the cartridge connector by pulling the tab (Figures 38 and 39). i. Pull the inhalation valve from the cartridge connector to remove it (Figure 40).

Figure 31

Figure 32

Figure 33

Figure 34

Figure 35

Figure 36

Figure 37

Figure 38

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