Liquid Controls MA4 Meter - Manual (Page 21)

21
Removing Corroded Rotor Gears
1. Replace all three rotor gear screws, without washers,
halfway onto each of the rotor ends.
2. 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 socket.
3. With a plastic or rubber mallet, tap on the heads of
the screws lightly and equally. As you tap on the
screw heads, the gears are driven off the rotors. As
the rotors are driven in, the rear bearing plate and
the rotor assembly are pushed away from the
housing.
4. Use the bearing plate wrench or socket to remove
the screws that hold the front bearing plate to the
meter housing.
5. Inspect and clean all critical surfaces like gear teeth,
rotors and internal housing faces. Remove any
crystalline formations using a fine emery cloth or a
fine wire brush. Be careful not to mar or alter the
shape of any of the parts. Changing the shape of
parts may interfere with their operation. Remove
nicks and burrs on metal parts with a stone. Remove
all grit and other foreign particles. These may also
damage parts and interfere with proper operation.
Replace all parts that appear worn or damaged.