Liquid Controls M-MA Meters - Manual (Page 17)

dIsasseMblInG the Meter
disassembling Mechanical output
Meters
to remove non-corroded rotor gears:
1. Insert two standard screwdrivers behind the blocking
rotor gear: Gently pry the gear off its rotor tapered end. If
the gears show signs of corrosion, or do not pry off easily,
see To remove corroded rotor gears: below.
2. Use the same method to remove the left rotor gear and
the right rotor gear. If the gears show signs of corrosion,
or do not pry off easily, see To remove corroded rotor
gears: below.
3. As each gear comes off the rotor remove the key (1)
from the rotor keyway (2). Save the key to use when
reassembling the meter.
4. Use the bearing plate wrench (or a socket driver) to
remove the screws that hold the front bearing plate to the
meter housing.
5. Remove the screws that hold the rear bearing plate to the
housing.
to remove corroded rotor gears:
1. On the back of the meter housing, remove the screws
that hold the rear bearing plate to the housing using the
bearing plate wrench (or a socket driver). The number of
screws will vary depending on meter size.
2. Replace all three rotor gear screws, without washers.
Screw them halfway onto each of the rotor ends.
3. With a plastic or non-metallic mallet, tap on the heads of
the screws on the rotor ends lightly and equally, slowly
driving the rotors off of the rotor gears. As you tap on the
screws, the rear bearing plate and the rotor assembly will
separate from the housing.
4. Use the bearing plate wrench (or a socket driver) to
remove the screws that hold the front bearing plate to the
meter housing. The number of screws will vary depending
on meter size.
For carbon insert bearing plates, remove the rear plate
first and then each rotor as it is hand supported.
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