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INSPECTION
DISASSEMBLY FOR INSPECTION:
The American AVK Series 67 Post / Flushing Hydrant is designed to be a trouble free, easy to maintain hydrant. The following
steps are recommended to provide trouble free operation.
WARNING:
For all of the following repair procedures, the hydrant must be isolated or the system depressurized and drained
before removing the hydrant components. Failure to do so may cause pressure to be released resulting in
severe injury or death.
NOZZLE INSPECTION
1. After making sure the hydrant is not pressurized, remove a hose cap (F19).
2. Locate the Set Screw (F23) hole. It is located approximately ½" in from the edge of the nozzle section and at about the
4:30 to 5:00 o'clock position. If this retaining screw is missing, ensure that the nozzle is correctly installed as shown in
Fig. 4, then immediately replace it (F23-Setscrew, M10 x 16 304 stainless steel) with a 5mm or 3/16” hexagon key.
3. There should be a small "dimple" or punch mark on the hose nozzle (F20), this mark should be in alignment with the
nozzle retaining screw as shown in Fig. 4. If it isn't, remove the setscrew (F23), rotate the nozzle until the alignment
is correct. Apply a drop of thread-locker (Loctite #242 or equal) to the end of the setscrew, tighten it until it contacts the
nozzle, and back off 1/8th of a turn. Replace the hose nozzle cap (F19).
Fig. 4
Nozzle Inspection
Dimple
Set Screw in
nozzle slot.
