FUEL TRANSFER PUMP TEST (DJBMA ONLY)-continued

TM 9-2815-221-34&P

4-6

TESTS AND ADJUSTMENTS (CONTINUED)

NOTE

Provide fuel by gravity feed before starting

engine.

G Start engine (p 4-3).

NOTE

Pressure reading with engine running should be

between 12 and 14 psi with pressure gage held 16

inches above fuel pump.

H Note pressure reading and stop engine.

NOTE

A fuel transfer pump repair kit is available. Refer

to Appendix B, Repair Parts and Special Tools

List. When repairing fuel transfer pump, replace

all parts contained in kit.

( 1 ) Low pressure

Indicates extreme wear in one or more component

parts. Repair or replace the fuel transfer pump.

Indicates a weak or broken spring or worn linkage.

Replace defective components.

(2) High Pressure: Indicates diaphragm is too tight or

spring is too strong. Replace defective component.

Remove pressure gage.

Connect fuel outlet line to fuel pump outlet fitting (1).

TA310976