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To clean the piston, we use Ajax soap, and towels wetted with isopropanol. When replacing the seals, we use silicone-based lubricant white lithium grease (per the manufacturer's recommendation) to avoid damage to the O-rings.
...
To clean the piston, we use Ajax soap, and towels wetted with isopropanol. When replacing the seals, we use silicone-based lubricant white lithium grease (per the manufacturer's recommendation) to avoid damage to the O-rings.