TM-9-2330-356-14

SEMITRAILER, TANK: 5000 GALLON, BULK HAUL, SELF LOAD/UNLOAD M967 AND M967A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, AUTOMOTIVE M969 AND M969A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, UNDER/OVERWING AIRCRAFT M970 AND M970A1

TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL

OCTOBER 1990

TM-9-2330-356-14 - Page 120 of 528

TM 9-2330-356-14

B-Before

3-24

Table 3-1. Operator/Crew Preventive Maintenance Checks and Services (Con‘t).

D-During

A-After

W-Weekly

M-Monthly

ITEM TO BE INSPECTED

PROCEDURE Check for and have repaired,

filled or adjusted as needed.

Tank.

a. Inspect tank shell for dents and leaks.

b. Check for leaks around fusible vent caps.

Tighten caps if loose.

c. Check for leaks around manhole cover. If

leaks are evident, check for damaged cover

gasket, loose mounting ring, and that cover is

securely latched.

Catwalk Drains.

Inspect for clogged drains. Remove foreign matter.

Emergency Valve and Vent.

Esure that all valves are closed. Operate control

ever A and ensure that the cable is actuating the

emergency valve lever and opens the vent on top of

semitrailer.

Emergency Valve Shut-off.

Ensure that all valves are closed. Move control

ever A to the OPEN position. On the front curbside

of the semitrailer, pull the emergency valve shut-off

control. Observe that control lever A has moved to

he CLOSED position.

Cabinet Door Shut-off (M970 and M970A1).

Ensure that all valves are closed. Open the hose

reel cabinet door. Move control lever A to the OPEN

position. Close the cabinet door and observe that

control lever A moves to the CLOSED position.

Brake System.

a. With towing vehicle coupled to semitrailer,

apply semitrailer brakes and inspect all air lines

and fittings for leaks.

b. Apply semitrailer brakes and observe

operation.

c. Drain water from both air reservoirs by

opening the air reservoir drain cocks.

Equipment Is Not

Ready/Available If:

Tank shell has leaks.

Leaks are evident.

Manhole cover gasket

aged.

Control lever A will not

is dam-

actuate

emergency valve lever, or vent

fails to open.

Control lever A does not move

to the CLOSED position.

Control lever A does not move

to the CLOSED position.

Brakes do not stop semitrailer,

or semitrailer pulls to one side.