TM 10-4610-240-24
TM 08580C-24/2
TO 40W4-13-22
Table 2-2. Unit Troubleshooting - continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
CHEMICAL FEED METERING PUMP ASSEMBLY
1.
PUMP FAILS TO PRIME.
Step 1.Check chemical container for chemical level.
a.
If chemical level is not full, fill chemical container Refer to TM 10-4610-240-10
Step 2.
Check prime and chemical feed tubes for leaks and loose connections
a
If connections are loose, tighten connections
b.
If tube is defective, replace tube. Refer to paragraph 2-68.
Step 3.
Disconnect prime and chemical feed tubes from chemical container, set three way valve to PRIME
position and pour water into fitting of prime tube
a.
If water comes out of chemical feed tube, repair chemical feed diaphragm pump Refer to
b.
If water does not come out of chemical feed tube, replace three-way ball valve Refer to
2.
INADEQUATE FLOW OF CHEMICALS.
NOTE
If all chemicals fail to feed, refer to Malfunction 4, Chemical Feed Metering Pump Assembly
Step 1.
Check chemical container for chemical level.
If chemical level is not full, fill chemical container
Step 2.
Check for leaks at tubes and three-way ball valves
2-28
