1100 Series Nano Pump Service Manual 125
Repairing the Pump 3
Exchanging the Plungers
When required:
• When scratched
Tools required:
• 3-mm hexagonal key
• 4-mm hexagonal key
Parts:
• Plunger 5063-6586
1 Disassemble the pump head assembly (see
“Removing and Disassembling the Pump Head
Assembly” on page 120).
2 Check the plunger surface and remove any deposits
or layers. Cleaning can be done with alcohol or tooth
paste. Replace plunger if scratched.
3 Reassemble the pump head assembly (see
“Reassembling the Pump Head Assembly” on
page 127).
Plunger surface