Section III. TROUBLESHOOTING
3-5. General
This section provides information useful in
Malfunctions which may occur are listed in chart 3-
1. Each malfunction stated is followed by a list of
diagnosing and correcting unsatisfactory operation
or failure of the unit and its components.
probable causes of the trouble. The corrective
action recommended is described opposite the
probable cause.
Chart 3-1. Troubleshooting
Corrective Action
Probable cause
Malfunction
a. Replace water meter (fig. 3-1 ),
a. Water meter defective
1. Hypochlorinator cam does not
and refer defective unit to direct
rotate.
support personnel.
b. Mechanical binding in meter
and refer defective unit to direct
extent ion case or defective
support personnel.
overload release.
a. Stroke adjustment set improperly.
2. Cam rotates but pump shaft does
b. Clean balancing water strainer
b. Insufficient water pressure to
not move properly.
hypochlorinator.
line is unobstructed.
c. Clear stoppage.
c. Stoppage in main connection or
discharge line.
a. Add solution
a. Solution below strainer level.
3. Insufficient quantity of solution
b. Refer to direct support personnel.
b. Suction valve not seating.
delivered. Cam rotates and pump
c. Refer to direct support personnel.
c. Discharge valve not seating.
shaft moves properly.
d. Tighten plug or replace gasket.
d. Priming plug not closed or
defective.
e. Loosen clamp and properly
e. Valve seats not properly positioned
position valve seats. Replace
or defective gaskets.
defective gaskets (para 3-16).
f. Tighten all connections. Replace
f. Air leak in suction line or fitting.
line if required.
g. Pumping
head
diaphragm
damaged.
Section IV. ORGANIZATIONAL MAINTENANCE PROCEDURES
valve housing. Install the water pressure gage in the
3-7. Toolbox
reverse order of removal.
To remove the toolbox (fig. 2-1), remove the four
screws, washers, and nuts that secure the toolbox to
3-10. Water Meter Assembly
the frame. Install the toolbox in the reverse order of
removal.
and perform steps 1 through 4 to remove and install
the water meter assembly. Install in the reverse
3-8. Cover
order of removal.
To replace the cover (fig. 2-1), simply put it over
b. Cleaning and Inspection.
the unit and fasten the straps.
(1) Using warm water and soap, clean the
water meter assembly and dry thoroughly.
To remove and install the water pressure gage (fig.
(2) Inspect assembly for cracks, breaks, or
other damage. Report any damage to direct support
counterclockwise and remove it from the balancing
maintenance personnel.
