Brooks MT3809G - Page 67

Installation and Operation Manual
X-VA-MT3809G-MT3810G-eng
Part Number: 541B182AAG
July, 2018
Models MT3809G & MT3810G
5. To clean the gas damper, unscrew the cylinder head. Then remove the
bolt and carefully take out the small piston so as to not damage the critical
surfaces.
6. Reassemble the meter by assembling the damper with oat assembly.
Insert the oat assembly with damper into the inlet/bottom of the meter.
Secure the inlet/bottom screw. While holding the damper in place with a
pin(1/8” diameter), insert and secure the top/outlet screw. Replace the
spiral retaining ring.
e. Sizes 10 (1"), 12 (1½"), 13 (2") anged, liquid service
1. Remove the meter from the process line and lay the meter horizontal on
a table.
2. Remove the gasket support ring. A bearing puller of the correct size is
recommended to remove the gasket support ring.
3. Loosen the inlet and outlet screws. Remove inlet screw at the bottom of
the meter.
4. Remove the guide vane at the bottom of the meter and gently push the
oat assembly up and out the top/outlet side.
5. Reassemble by inserting the oat assembly into the top of the meter.
Replace the guide vane and secure the oat assembly by tightening
the inlet and outlet screws.
f. Sizes 10 (1"), 12 (1½"), 13 (2") anged, gas service
1. Remove the gasket support ring. A bearing puller of the correct size is
recommended to remove the gasket support ring.
2. Secure the damper from turning by inserting a 1/8” pin through the top
guide cartridge. While holding the damper in place, remove the top/outlet
screw.
3. Push the oat assembly out through the inlet/bottom.
4. To clean the gas damper, unscrew the cylinder head. Then remove the
bolt and carefully take out the small piston so as to not damage the critical
surfaces.
5. Reassemble the meter by assembling the damper with oat assembly.
Insert the oat assembly with damper into the inlet/bottom of the meter.
Secure the inlet/bottom screw. While holding the damper in place with a
pin (1/8” diameter), insert and secure the top/outlet screw. Replace the
spiral retaining ring.
g. Sizes 15 and 16 (3" and 4") anged, liquid or gas service (size 15
only)
1. Remove the meter from the process line and lay the meter horizontal on
a table.
2. Loosen the oat assembly by xating two pliers one on each end of the
oat assembly inlet guide cartridge. Turn to loosen with the help of a pin
wrench.
3. Carefully remove the complete oat assembly and conical taper as well
as the spacer bushing (size 16 only) out the inlet/bottom of the meter.
4. Reassemble by inserting the oat assembly inside the conical taper
(as well as the spacer bushing, size 16 only). Then insert the complete
oat assembly into the bottom of the meter. Replace the oat assembly
inlet guide cartridge and tighten the oat assembly into place.
2. THREADED CONNECTION