IM-P149-06
CMGT Issue 8
8
start of text under grey section header box
start of text continuing from previous page
TRANSLATION RUN OVER
6.2 How to fit the main valve:
-
Undo the cover bolts (
2
) and lift of the cover (
4
).
-
Withdraw the pivot pin (
11
) to release the float and lever (
8
) from the pivot frame (
10
).
-
Push out the main valve head (
9
) and replace with a new one. Reassemble the float and lever (
8
).
-
Check operation by raising and lowering the float several times making sure that the valve head is
centring properly on the seat.
-
Refit the cover (
4
) using a new cover gasket (
3
).
-
Tighten cover bolts (
2
) uniformly to the recommended tightening torque (see Table 1).
-
Open up the isolating valves slowly until full system pressure is achieved.
-
Check for leaks.
6.3 How to replace the main valve assembly:
-
Undo the cover bolts (
2
) and lift of the cover (
4
).
-
Withdraw pivot pin (
11
) and release the float and lever (
8
) from the pivot frame (
10
).
-
Undo main valve assembly screws (
7
) and remove pivot frame (
10
).
-
Unscrew main valve seat (
5
) and gasket (
6
).
-
Replace with new and tighten main valve seat (
5
) to recommended torque (see Table 1).
-
Re-assemble the float and lever (
8
).
-
Check operation by raising and lowering the float several times making sure that the valve head is
centring properly on the seat.
-
Refit the cover (
4
) using a new cover gasket (
3
).
-
Tighten cover bolts (
2
) uniformly to the recommended tightening torque (see Table 1).
-
Open up the isolating valves slowly until full system pressure is achieved.
-
Check for leaks.
6.4 How to fit the stop valve assembly (AE14SV and AE14ESV):
Warning: Before attempting this operation it is essential to isolate the automatic air vent other
than by its inbuilt stop valve and to lower the water level.
-
Remove the complete stop valve assembly by unscrewing the housing (
12
).
-
Replace with a new stop valve assembly (
12, 13, 14
), fitting new seals (
15
) and gaskets (
16
) tighten to the
recommended tightening torques (see Table 1).
-
After re-commissioning ensure that the new inbuilt stop valve is in the open position.
Summary of Contents for AE14
Page 11: ...IM P149 06 CMGT Issue 8 11...
Page 12: ...IM P149 06 CMGT Issue 8 12...
