3-10 Maintenance
Replacing the seals and O-ring
This procedure involves replacing the:
• Plunger seal
•O-ring
• Plunger wash seal
Required materials
• Plastic tweezers (part number 605000106)
• Replacement seal kit (part number 700001494)
• Seal insertion/extraction tool (part number 405001667)
• Squeeze bottle with methanol (or an appropriate miscible solvent)
To replace the plunger seal:
1. Remove the head (see page 3-4).
2. Insert the seal insertion/extraction tool into the head and use a rocking
motion to lift the seal from the head.
Removing the plunger seal
Caution: To avoid damaging the sealing surfaces, use the seal
insertion/extraction tool. Do not use a sharp or metallic tool to
remove or install seals.
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