Exchange the Rotor Seal
When
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Tools required
Qty. | p/n | Description | |
|---|---|---|---|
1 |  | 8710-0510 | Open-end wrench 1/4-5/16 inch |
1 | | 8710-2394 | Hex key 9/64 inch 15 cm long T-handle |
1 | | 05980-60051 | Cloths, clean, lint-free 15/pk |
1 |
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| Isopropanol or any other appropriate solvent |
Parts required
Qty. | p/n | Description | |
|---|---|---|---|
1 | | 5068-0007 | Rotor Seal, Vespel, 1300 bar for 1290 Injection Valve OR |
1 | | 0101-1416 | Rotor Seal, PEEK, 600/800 bar for 1260 Injection Valve |
Prerequisites
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CAUTION
Reduced life time of the injection valve
Component cleanliness is crucial for the life time of the injection valve.
- Replace the rotor seal in a clean environment.
CAUTION
Removing the stator head
The stator face is held in place by the stator head. When you remove the stator head, the stator face can fall out of the valve.
- Carefully handle the valve to prevent damage to the stator face.
- Carefully handle the stator face during sonication.
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Remember the correct plumbing.
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CAUTION
Damage to the rotor seal and cross-port leaks
- Before you replace the rotor seal, clean the stator.
- Inspect the stator head and swab it with the appropriate solvent. If more stringent cleaning is required, use a sonicator. Inspect the remaining valve components for contamination. Clean them as necessary.
- If the stator head is scratched, replace it.
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Tighten the bolts alternately two turns at a time until the stator head is secure.
NOTE
Do not overtighten the screws.
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Note the correct plumbing as shown on the safety cover of the module.
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Perform a System Pressure Test.
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