Table 2-2. Unit Troubleshooting - continued
TEST OR INSPECTION
CHEMICAL FEED METERING PUMP ASSEMBLY
PUMP FAILS TO PRIME.
Step 1.Check chemical container for chemical level.
If chemical level is not full, fill chemical container Refer to TM 10-4610-240-10
Check prime and chemical feed tubes for leaks and loose connections
If connections are loose, tighten connections
Disconnect prime and chemical feed tubes from chemical container, set three way valve to PRIME
position and pour water into fitting of prime tube
If water comes out of chemical feed tube, repair chemical feed diaphragm pump Refer to
If water does not come out of chemical feed tube, replace three-way ball valve Refer to
INADEQUATE FLOW OF CHEMICALS.
If all chemicals fail to feed, refer to Malfunction 4, Chemical Feed Metering Pump Assembly
Check chemical container for chemical level.
If chemical level is not full, fill chemical container
Check for leaks at tubes and three-way ball valves