TM 5-4610-218-34
Table 2-1. Troubleshooting-(Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2. Check for a worn or broken valve spring.
Replace a defective spring (para. 6-1).
Step 3. Inspect the air release valve check valve for clogs or corrosion.
Clean or replace the check valve (para. 6-1).
Step 4. Inspect for broken air release valve tubing.
Replace broken tubing (para. 6-1).
7. AIR RELEASE VALVE FAILS TO RELEASE, OR RELEASES TOO SLOW.
Step 1. Check for a bent or corroded diaphragm push rod.
Replace a defective push rod (para. 6-1).
Step 2. Inspect the check valve for clogs, corrosion, or defects.
Clean or replace the check valve (para. 6-1).
Step 3. Check for a crimped or clogged tube assembly.
Clean or replace the tube assembly (para. 6-1).
8. FILTER PUMP MOTOR WILL NOT RUN, OR IS NOISY DURING OPERATION.
Step 1. If the pump motor does not run, check for defective wiring.
Repair wiring (para. 6-3).
Step 2. If the pump motor does not run, check for open or shorted field or stator wiring.
Replace field or stator wiring (para. 6-3).
Step 3. If the pump motor is noisy during operation, check for a bent rotor shaft.
Replace a defective rotor (para. 6-3).
Step 4. If the pump motor is noisy during operation, inspect the bearings for wear or cracks.
Replace defective bearings (para. 6-3).
GENERAL
MAINTENANCE
Section III.
(4) Erdlator agitator shaft assembly. Re-
2-5. General Maintenance.
pair, replace.
a. General. This paragraph contains the main-
(5) Low water level warning buzzer. Test,
tenance functions for the major components/assem-
replace.
blies as authorized by the Maintenance Allocation
Chart to direct support and general support mainte-
(6) Electrical control cabinet. Replace.
nance personnel that are contained in the following
(7) Chemical slurry feeder. Repair, replace.
paragraphs of this manual. Below, is a breakdown of
(8) Diatomite dilution tank. Replace.
those maintenance functions allocated to direct
support, and a breakdown of the maintenance func-
(9) Chemical slurry feeder speed reducer.
tions allocated to general support.
Repair.
b. Direct Support.
(10) Diatomite filter air release valve. Re-
pair.
(1) Erdlator tank. Repair, replace.
(11) Diatomite filter pump motor. Repair,
(2) Ladder assembly. Repair.
(3) Erdlator agitator speed reducer. Re- overhaul.
c. General Support.
pair.
2-3
