TM-9-2320-279-20-1

M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 1 OF 3

TM-9-2320-279-20-1 - Page 474 of 985

TM 9-2320-279-20-1

Fuel System Maintenance Instructions (Cont)

4-7. FUEL TANK AND BRACKETS REMOVAL/INSTALLATION (CONT).

(6)

Support fuel tank (14).

(7)

Remove three nuts (15) from

three fuel tank straps (16).

(8)

Pull fuel tank straps (16)

outward and remove fuel

tank (14).

NOTE

There are two types of air vents.

Model A has a removable hose

fitting and a 12 in. (304.8 mm) long

air vent line. Model B uses a 24 in.

(609.6 mm) long air vent line and

does not have a removable hose

fitting. Both models are removed

the same way.

(9)

Remove air vent (17) and two

elbows (11 and 18).

NOTE

Do step

(9.1)

for Model A only.

(9.1)

(10)

(11)

(11.1)

(12)

Remove fitting (18.1) from air

vent (17).

Remove tank cap (19) and fuel strainer (20).

Remove check valve (9) from elbow (18).

Some models of fuel tanks contain a socket head pipe plug. Perform step

(11.1)

for these

models.

Remove socket head pipe

plug (20.1).

Soldier A removes six

screws (21) from each fuel tank

bracket (22) while Soldier B

removes nuts (23).

NOTE

NOTE

On M983 and M984 vehicles, mud

flap chain must be removed from fuel

tank strap.

(13)

Remove three fuel tank

brackets (22) with fuel tank

straps (16) from frame (24).

4-26

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