Replacing the Stem O-ring
Preparations
Turn off all shut off screws (see video)
Steps
- Remove the two screws on the button plate (PH10-3) and remove the button plate (PH10-2)
- Remove the two screws (PH10-7) holding the butterfly plates (PH10-9-1HR | PH10-9-1HL | PH10-9-2 | PH10-9-3H | PH10-9-3HR) and remove the butterfly plates(PH10-9-XX)
- Remove the stem O-ring retainer (PH10-110)
- Place the the sharp twisted side of the stem O-ring (XXX) tool onto a stem O-ring (M4H-10B) and turn. The pin should grab hold of the O-ring (M4H-10B), then pull out to remove the stem O-ring (M4H-10B).
- Place the new stem O-ring (M4H-10B) onto the stem (PH10-89) and the use the opposite side of the stem O-ring tool to seat the stem O-ring (M4H-10B) onto the stem (PH10-89)
- Replace the stem O-ring retainers (PH10-110) ensuring that the crossed side of the retainers is facing up.
- Replace the butterfly plates (PH10-9-XX)
- Reinsert the butterfly screws (PH10-7) and butterfly retainer (PH10-8) and screw tightly (don't overtighten!), make sure the butterflies (PH10-9-XX) are snuggly seated
- Place button plate (PH10-2) back on the handle and tighten screws (PH10-3)
Cleanup
Turn the shut-off screws back to the on position
Parts needed
| Part No. | Description |
|---|---|
| PH10-3 | Button Plate Screw |
| PH10-2 | Button Plate (Black) |
| PH10-7 | Bottom Plate Screw |
| PH10-110 | |
| PH10-8 | Butterfly retainer |
| M4H-10B | |
| PH10-89 | Valve Stem - Santoprene |
| PH10-9-1HL | Plate - 1Hole-Left Hand |
| PH10-9-1HR | Plate - 1Hole - Right Hand |
| PH10-9-2H | Butterfly plate - 2 hole |
| PH10-9-3HL | Butterfly plate - 3 hole left |
| PH10-9-3HR | Plate - 3Hole - Right Hand |