Hoefer VP200 - Manual (Page 23)

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8
Position new diaphragm (F) between diaphragm
clamping disc with square head screw (G) and
diaphragm support disc (E).
Note: Position diaphragm with pale side towards
diaphragm clamping disc (facing pump chamber).
Make sure that the square head screw of the
diaphragm clamping disc is correctly seated in the
guide hole of the diaphragm support disc.
9
Lift the diaphragm at the side. Place the diaphragm
carefully together with diaphragm clamping disc and
diaphragm support disc in the diaphragm key.
Avoid damage of the diaphragm: Do not excessively
bend or crease the diaphragm.
Assemble the original number of washers (D) between
diaphragm support disc (E) and connecting rod (B).
Screw diaphragm clamping disc (G), diaphragm
(F), diaphragm support disc (E), and washers (D) to
connecting rod (B).
!
Optimum torque for the diaphragm support disc:
4.4 ft lb
f
(6 Nm), it is recommended to use a torque
wrench. Attach torque wrench to diaphragm key
(hexagonal bolt 6 mm wide).
Note: Never use the diaphragm key with any
additional tools like tongs or Allen keys without
appropriate torque limitation.
Step 8
Step 10
F
G
E
F G