TM-9-2330-335-14-P

SEMITRAILER, TACTICAL, BREAKBULK/CONTAINER TRANSPORTER, 22-1/2 TON, RESET M871R, M871A1R AND M871A2R

TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE MANUAL (INCLUDES REPAIR PARTS AND SPECIAL TOOLS LIST)

SEPTEMBER 2008
TM-9-2330-335-14-P

  TM-9-2330-335-14-P - Page 538 of 640

TM 9-2330-335-14&P
0094-4
0094
CONNECT TRACTOR TO SEMITRAILER
00094
1.
Ensure semitrailer is at a sufficient height to allow coupling of the tractor and semitrailer.
2.
Chock trailer tires, front and rear of each tire.
3.
Connect air lines from tractor to semitrailer, lock semitrailer brakes and back tractor under semitrailer, then lock
fifth wheel.
4.
Retract landing gears to fully retracted position.
5.
Remove and properly store/secure chocks and ground boards. Engage crank handle to prevent wind down.
6.
Store crank on the crank holder.
LUBRICATION
00094
No additional grease is required.
TROUBLESHOOTING
00094
CAUTION
•
Landing gears are designed to meet T.T.M.A. recommended practice RP-4 and A.A.R.-931
requirements.
•
When operating the landing gears, it is necessary to observe some cautions. By doing so you will
ensure long trouble-free service by observing the following:
-
Do not over-extend or over-retract landing gears.
-
Never drop semitrailer on landing gears. Always extend landing gears until shoes contact
ground, then lift semitrailer approximately 1 in. (2.54 cm) before removing tractor
from semitrailer.
-
Always chock tires front and rear prior to coupling.
-
Always ensure that the landing gear shoes or footpads will rest on hard ground surface or
concrete pad. If necessary, place shoes on a support plank to prevent the landing gears from
sinking into the ground surface. (This is especially important with liquid cargo where a shift in
the contents could overturn the semitrailer.) Use ground boards to ensure correct/safe coupling
height and prevent shoes from sinking in soft ground.
-
Always retract landing gears fully before moving semitrailer.
-
Always store the crank on the crank holder after extending or retracting the landing gear.
-
Replace all damaged or missing parts.
-
Failure to replace worn or damaged riser nut and retracting screw assembly could cause
a failure.
Landing Gears Hard to Crank
00094
1.
Cross driveshaft in a bind or tight between shafts. Bolts must be loose and cross driveshaft free to move in slots
provided.
2.
To determine which leg turns hard, remove cross driveshaft bolt and crank each leg on the jackshaft.
3.
Check for inadequate lubrication (WP 0067).
4.
Check for proper alignment. Legs must be timed together, parallel to each other, and perpendicular to the
semitrailer crossmembers.


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