Fuel Pump.

TM 5-4110-217-14

(2) Clean filler cap and screen with an

CAUTION

approved cleaning solvent and dry thoroughly.

Use suitable container to catch gasoline

d. Repair. Replace defective filler cap (14) and

emitting from line. Do not leave power

strainer (15), fuel gauge (17), or drain plug (16).

switch on for extended period.

e. Installation.

(1) Position gasoline tank in frame. Collar tank

(3) If pump does not click when power switch

with two straps to frame. Be sure drain plug and gauge

is on check power lead to pump. If power is

face out in front of unit. Tighten straps.

present, replace pump. If power is not present, trace

(2) Connect fuel line to tank

wiring and repair.

B Checking the Fuel Pump The pump can be

checked by disconnecting the fuel line at the carburetor,

5-7. Fuel Pump.

cranking the engine slowly by hand, and observing

whether fuel comes from the line at the carburetor. If

a. General. The fuel pump is a diaphragm-type

there Is enough fuel In the tank and the line between the

pump and is located on the unit frame on the right hand

tank and pump Is open, but the pump fails, It must be

side. This pump operates only when the power switch is

replaced. Gasoline diluted oil also may indicate a faulty

in the "ON" position.

If fuel does not reach the

fuel pump that should be replaced

carburetor, check the condition of the fuel pump

(1) The pump has a filter installed in the

CAUTION

bottom Remove and clean each time the secondary filter

is cleaned.

Use care when replacing pump. A

(2)

Testing can be accomplished by

leaking pump is a potential fire hazard.

disconnecting the inlet line to the mechanical pump and

Fittings must be perfectly aligned, tight

momentarily turning power switch to "ON" position. A

and without leaks.

clicking sound should be heard and gasoline should flow

from line.

c. Removal and Installation. Refer to paragraph 3-

27 for removal and installation of the fuel pump.

Change 3 5-6.1/(5-6.2 blank)