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 47 of 528
TM 9-2330-356-14
CAUTION
Never use the air brakes on the semitrailer
when parking If the brake drums are hot. The
brake drums will contract (shrink) as they
cool and may crack as the applied brakes
prevent normal contracting.
d.
Parking.
When the towing-vehicle-with-semitrail-
er combination is to be parked and left unattended, set the
hand brake firmly.
2-6.
Uncoupling Semitrailer From Towing Vehicle
a. If the semitrailer is to be uncoupled in mud, sand,
or snow, or if the towing vehicle is an M931A1 or M932A1,
position ground boards approximately centered beneath
landing gear shoes.
b.
Close the shut-off valves on the service and
emergency air lines at the rear of the towing vehicle.
Uncouple the two air brake hoses from the air brake hose
couplings on the semitrailer (fig. 2-1). The semitrailer
brakes will set automatically when the emergency air
brake hose is uncoupled. Fit dummy couplings on
semitrailer air brake hose couplings. Open drain valves on
front and rear reservoirs (fig. 2-2).
c. Disconnect intervehicular cable from receptacle
on semitrailer (fig. 2-1).
d.
If sand shoes are secured in a swing-a-way posi-
tion rearward to the semitrailer, release chain assembly.
e. Release the landing gear operating crank
(fig. 2-3) from its clip, engage crank on shaft, and rotate
the crank counterclockwise to lower the landing gear
(para 2-3) until the foot pads are firmly on either the
ground or the ground boards. Replace the crank in its clip
and secure.
f. Release the semitrailer kingpin from the towing
vehicle’s fifth wheel hook by pulling out on the lockjaw
handle. If the hook is binding and will not release, pull the
hook handle harder to force release. Drive the towing
vehicle forward until the semitrailer is disengaged from
the towing vehicle and is resting on its landing gear.
2-7.
Jacking Procedures
A jack is not part of the on-vehicle equipment. If you have
to change a flat during operations, use the towing vehicle
jack. Place jack under axle on side of semitrailer with the
flat tire. Jack up axle until both tires on that end of axle
clear the ground. Replace flat tire and wheel with spare
tire and wheel. When lug nuts have been put on and
tightened, lower wheels and remove jack. Recheck lug
nuts for tightness, and stow jack in towing vehicle.
Section II. OPERATION OF AUXILIARY EQUIPMENT
2-8.
General Instructions - Fuel Handling (All
Models)
WARNING
Follow all fuel handling procedures precisely
to prevent injury or death to personnel.
a. Safety Precautions.
It is important that all fuel
handling and operating procedures be followed precisely.
A detailed study of FM 10-20, FM 10-68, FM 10-69, and
FM 10-71 is essential for all fuel servicing operations.
WARNING
Ensure that grounding connections are made
properly and firmly before any fueling opera-
tions begin. This will ensure that grounding
connections will not release, thus eliminating
the possibility of sparks caused by static
electricity which will ignite the fuel.
WARNING
Ladder has narrow tread. Use care when climbing.
NOTE
Always connect a static ground line to the ve-
hicle, storage facility, aircraft, or equipment
being serviced. If portable ground is used,
make sure a good connection is made.
b.
Bonding and Grounding (Fig. 2-7.
(1) Bonding is electrically connecting units or
containers both to equalize any static potential that might
exist before operations begin and to provide a continuous
path for any static electricity that might be generated after
operations begin.
(2) Grounding is electrically connecting single or
bonded units to a ground rod to discharge into the earth
any static potential that might already exist or that might
be generated.
(3) If two
or
more units are bonded, and one is
grounded, the whole system is effectively grounded.
Change
1
2-5
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