TM 10-4610-215-24
TM 08580A–24/2
Table 3-1. Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
CHEMICAL FEED PUMP MOTOR
1. MOTOR WILL NOT START. OR OVERHEATS REPEATEDLY.
Step 1.
Check for sticking or binding of worm gear or worm wheel.
a. Clean and lubricate binding parts.
b. Replace damaged parts.
Step 2. Check for loose connections or broken wires to capacitor.
a. Tighten connections.
b. If wires are damaged, send motor to next higher level of maintenance.
Step 3.
Inspect for seized bearings or damage to centrifugal mechanism.
a. Remove motor from flange mounting.
b. Using a strap wrench, turn rotor shaft.
c. If shaft is hard to turn, is loose, or is excessively noisy, disassemble and inspect in
accordance with paragraph 3–13.
Step 4. Inspect for loose wire connections to stationary switch.
a. Inspect for broken stationary switch.
b. Tighten connections.
c. Replace damaged stationary switch.
Step 5.
Inspect motor casing wiring for damage.
a. Test for short circuits.
b. If wiring is faulty, send motor casing to next higher level of maintenance for repair.
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