TM 10-4320-303-13
5.6.3 Water Meter Maintenance.
This task covers:
5.6.3.1 Disassembly
5.6.3.3 Repair
5.6.3.2 Inspection
5.6.3.4 Assembly
INITIAL SETUP
Tools
Equipment Conditions (Continued)
Tool Kit, General Mechanic's,
Gear Box removed, refer to paragraph 5.6.2.
Automotive, Section III, Item 1,
Appendix B
General Safety Instructions
Materials/Parts
Do not work on equipment without following
standard shop safety precautions.
Gasket (TM 10-4320-303-23P)
Equipment Conditions
125 GPM pumping assembly shutdown,
refer to applicable technical manual.
5.6.3.1 Disassembly.
a. Remove two screws (Figure 5-5, 1).
b. Remove meter mounting cup (2) from top casing (3).
c. Remove six nuts (4) and bolts (5).
d. Remove top casing (3) and gasket (6) from bottom casing (7). Discard gasket (6).
e. Remove top gear (8), first intermediate gear (9), and intermediate pinion (10) from gear plate (11).
f. Remove two gear plate screws (12) and gear plate (11).
g. Remove rubber roller (13) from drive shaft (14).
h. Remove drive shaft (14) from disc chamber top (15).
i. Remove top disc chamber (15) from rubber disc (16).
j. Remove diaphragm (17) from rubber disc (16).
k. Remove rubber disc (16) and bottom disc chamber (18) from bottom casing (7).
5.6.3.2 Inspection.
a. Inspect meter mounting cup (2), top casing (3), bottom casing (7), top disc chamber (15), and bottom
disc chamber (18) for corrosion, cracks, holes, or damage.
b. Inspect rubber roller (11), rubber disc (16), and diaphragm (17) for corrosion, cracks, tears, slices, or
damage.
c. Inspect all other components for corrosion, cracks, or damage.
5.6.3.3 Repair. Repair consists of replacing all damaged or defective components.
5-17
