64
3 Pump Head Maintenance (Quaternary and Flexible Pumps)
Primary Pump Head
Disassembling the Primary Pump Head
Tools required p/n Description
8710-0510 Wrench open 1/4 — 5/16 inch
G4220-20012 Torque wrench 2 – 25 Nm
G4220-20013 4 mm hex bit
01018-23702 Insert tool
Damage of pump piston
The pump piston is made of ZrO
2
-based ceramic, which is a very hard and resistant
material, but it is sensitive to shearing forces from the side.
➔ Do not try to remove the pump piston from the rear.
➔ Do not use the piston for removing pump seals.
1 Remove the outlet valve at the top of the pump head and
the inlet valve at the bottom of the primary pump head.
2 For disassembling the pump head, remove the 4 hex
screws at the rear of the pump head.
To Next Page
Loading...
