TM 9-2330-294-14
(7) Use towing vehicle controls and check
with tiedown assemblies (para 2-12b), that landing
operation of all semitrailer lights and operation of
brakes.
b. Preparing Semitrailer for Loading.
clearance lights (para 2-6) are in retracted position.
(4) Position air control handle (para b (3) above)
WARNING
at LIGHT LOAD position for short distance travel
Load on level ground whenever possible. In
with all tires on ground. For long distance travel,
adverse conditions, loading can be con-
position air control handle in FULL LOAD position
ducted on side and lateral slopes up to 10
to raise axles 5 and 6, or in NO LOAD position to
percent and with a towing vehicle- semitrailer
raise axles 7 and 8.
offset angle up to 5 degrees. Avoid loading
on a severe downgrade to prevent t h e
(5) Use towing vehicle controls and check that
semitrailer brakes and all lights are operating.
p a y l o a d from rolling forward cm the
d. Preparing Semitrailer for Travel With Payload.
semitrailer.
(1) Check that all payload securing chains are
(1) Aline semitrailer rear end as close as possible
tight,
(6 feet or less) to disabled vehicle on as level ground
(2) Check that air control handle is in proper
as possible.
position for payload (para b (3) above).
(2) Set brakes on towing vehicle and semitrailer.
(3) Check that landing gear is raised and that
swingaway rollers are in stowed position.
accommodate pay-load weight as follows:
(4) Check that retractable clearance lights are in
(a) FULL LOAD position for transporting
retracted position for regular loads or are extended
payloads of 35 to 60 tons (85 psi air pressure in air
for all loads that are wider than bed of semitrailer.
(5) Check that ramps are raised and secured
the 85 psi regulator valve must be reset to 95 psi
with tiedown assemblies (para 2- 12b). If two M113
type or M114 vehicles are being transported, secure
(b) HALF LOAD position for transporting
ramps in raised position with additional chains to
payloads of 15 to 35 tons (50 psi air pressure in air
payload lifting eyes.
springs).
(6) Check that all basic issue items are properly
(c) LIGHT LOAD position for transporting
stowed on semitrailer.
payloads of up to 15 tons or with no payload (15 psi
(7) Use towing vehicle controls and check that
air pressure in air springs).
semitrailer brakes and all lights are operating.
(d) NO L O A D p o s i t i o n f o r o p e r a t i n g
e. Uncoupling and Parking Semitrailer.
semitrailer with axles 7 and 8 raised (100 psi air
(1) Position semitrailer where required. Select
pressure in air lifts). This position provides a shorter
area as level as possible.
turning radius and reduces tire wear on the two rear
(2) Check that swingaway rollers and retrac-
axles when making sharp turns without payload.
table clearance lights are in stowed position.
Used to haul an empty trailer with axles 7 and 8
(3) Check that all basic issue items are ac-
raised.
counted for and are properly stowed.
(4) Disconnect landing gear from travel bracket
from each ramp and drop ramps to ground. Adjust
gear to support bracket in lowest position possible.
(5) If payload exceeds 55 tons, install support
Use 24 x 24 inch board assemblies (5, fig. B-1) under
blinks under each rear corner of semitrailer (Position
landing gear foot if landing gear is on very soft soil.
(5) Lower axles 5 and 6 or 7 and 8, if in raised
(6) Position curbing on deck of semitrailer for
position.
vehicle being loaded in accordance with table on
(6) Disconnect intervehicular electrical cable
from semitrailer.
loading. As soon as load is on semitrailer and before
(7) Close towing vehicle air shutoff cocks, and
moving load forward, move curbs from position F to
disconnect intervehicular emergency and service
position A.
hoses. Install dummy couplings on semitrailer air
c. Preparing Semitrailer for Travel Without
Payload.
(8) Unlock towing vehicle fifth-wheel lock and
(1) Couple towing vehicle to semitrailer ( a
drive towing vehicle from semitrailer.
above).
(2) Check that all basic issue items are ac-
counted for and are properly stowed.
a. General.
(3) Check that ramps are raised and secured
(1) All payloads and cargoes should be secured
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