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