page 62 of 80
+
Assemble the original number of washers
(D) between diaphragm support disc (E)
and connecting rod (B).
➨
Screw diaphragm clamping disc (G), dia-
phragm (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 dia-
phragm 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.
Loosen the clamping brackets (S) on the valve
heads (O).
➨
Unscrew at each clamping bracket the two
countersunk screws with a Torx driver T20.
Remove the clamping brackets.
Loosen connection fastener slightly.
➨
Turn the fillister head screw (L) with a Torx
driver T20 at most one turn.
+
Do not detach the fillister head screw from
the square nut (K).
➨
Open the hinged cover of the connection
fastener (Q) with a slotted screwdriver.
Replacing the valves
F
G
Q
O
S
Summary of Contents for MD 4C NT
Page 32: ...page 32 of 80 ME 4C NT 1 5 4 7 6 8 2 ME 2C NT 1 5 4 7 6 8 2 ...
Page 34: ...page 34 of 80 ME 8C NT MD 4C NT 1 5 3 4 7 6 2 8 8 5 4 7 6 1 2 ...
Page 73: ...page 73 of 80 Declarations and certificates ...
Page 74: ...page 74 of 80 ...
Page 78: ...page 78 of 80 ...
Page 79: ...page 79 of 80 ...
