4-6. BLOWER, PUMP, AND MOTOR ASSEMBLY MAINTENANCE - Continued.
Tag and disconnect all wiring to motor (1).
Tag and disconnect all tubing attached to fuel pump (4).
Remove seven screws (16), seven lockwashers (15), seven flat washers (14) attaching venturi ring (13) to
Remove six self-locking nuts (10), six flat washers (9), six screws (7), and six flat washers (8).
Remove motor (1) with venturi ring (13), fuel pump (4), and blower (12) attached.
Loosen two setscrews (11) and remove blower wheel (12) and venturi ring (13), from motor (1).
Remove two screws (6), two lockwashers (5), and fuel pump (4).
Remove pin (3) and coupling (2) from motor (1).
Inspect blower wheel for cracks, missing or damaged blades, and corrosion.
Inspect fuel pump for cracked or leaking housing, broken or bent shaft. Check shaft end for rounded edges.
Inspect for damaged or missing hardware.
Inspect motor for burned wiring, bent shaft, and damaged housing.
Cleaning solvent, Federal Specification P-D-680, is toxic and flammable. Use only in a well-
ventilated area. Avoid prolonged breathing of fumes. Keep solvent away from flames. Do not
use in excessive amounts. Avoid skin contact.
Clean blower wheel and fuel pump with cleaning solvent (item 11, Appendix E).
Allow to dry.