2
Service Instructions
To
remove
existing
Register
assembly
Ensure that the fluid supply to
the meter is disconnected, and
the line pressure is released
before disassembly.
1] Remove the four screws as
shown in Figure 1 below.
2] Remove the Register front cover
as shown in Figure 2 below.
3] Remove the 4 screws as shown
in Figure 3 below and remove
the register base.
Rotate the Cover plate
1]Remove 6 Socket Head Cap screws
as shown in Figure 4.
2] Remove the Cover plate and
inspect the oring for damage,
replace if necessary.
3] Rotate the cover plate clockwise
one screw hole (60 degrees) as
shown if Figure 4.
4) Tighten the 6 Socket Head Cap
screws.
Dismantle MH450 Register
Refer to the exploded parts diagram
Figure 7 for items numbers.
1] Remove the 4 clamp ring screws
(Item 1)
2] Remove the Clamp ring (Item 2)
3] Remove the Glass face and seal
assembly (Items 3 and 4)
4) Undo the two register Facia
screws (Item 5) and remove the
facia plate (Item 6)
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Installing the MH450 Register
Refer to the exploded parts diagram
Figure 8 for items numbers.
1] Install the Gasket (Item 15)
2] Place register body (Item 11) into
position then fit the 4 register
mounting screws and tighten as
shown in Figure 6.
Note:
The
register body includes the
tumbler mechanism.
4) Replace the remaining items (6,
5, 4, 3, 2, 1) as per “Dismantle
MECH450 Register” instructions
above.
5) When fitting the clamp ring
(Item 2) tighten the 4 screws
evenly to avoid damage to the
glass.
Figure 6
