TM 55-2090-201-14&P
3-3. OPERATORS TROUBLESHOOTING PROCEDURES (Continued).
Table 3-3.
Operators Troubleshooting Chart for Pump and Motor,
Type A and B Separators
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
Motor will not
Step 1.
Step 2.
2.
Motor runs but
Step 1.
Step 2.
Step 3.
Step 4.
start.
Check power supply:
Are cable connections tight?
Is wiring tight?
Turn on main power.
Place pump selector
switch in ON position.
Tighten loose
connections with power OFF.
Test for defective part on printed circuit board.
Refer to table 3-4 or 3-5, test procedures 2, 3,
and 4.
Replace defective printed circuit board per
paragraph 3-14 or 3-17.
Evacuate circuit
board to General Support Maintenance.
kicks out.
Review prestart checks.
Properly align system.
Inspect prefilter element for clogged condition.
Replace element per paragraph 3-38.
Inspect discharge line for obstruction.
Remove obstruction.
Check for obstructions around motor that blocks air
flow.
Remove obstructions.
3.
Pump will not pump or prime
Step 1.
Is valve closed in suction line?
Open valve.
3-11
