Landoll 336C User manual

MODEL 336C
CAR CARRIER
OPERATOR’S MANUAL
1900 NORTH STREET
MARYSVILLE, KANSAS 66508
[phone]
F-276-1299 12/99

WARRANTY
MANUFACTURER’S GUARANTEE POLICY
LANDOLL CORPORATION WARRANTY
LANDOLL warrants each new and unused LANDOLL machine, when properly
assembled, adjusted, and operated, to be free of defects in material and work-
manship, in normal use and when properly serviced, for a period of twelve
(12) months after date of delivery by the Dealer to the original retail purchaser.
LANDOLL shall repair or replace, at its option, freight on board (f.o.b.) at its
factory or designated DEALER location, any part or parts of such new and un-
used machine which shall have been reported in writing to LANDOLL within
thirty (30) days from date of failure thereof and which LANDOLL inspection
shall disclose to have been defective. Defective parts must be returned to the
LANDOLL factory, freight prepaid. LANDOLL will not be liable for labor, trans-
portation, or any other charges resulting from replacement of a defective part.
This warranty is void if any part not supplied by LANDOLL is used in assem-
bly or repair, or if the machine has been altered, abused, or neglected. LAN-
DOLL repair parts are warranted for ninety (90) days from date of replacement
or for the unexpired warranty period of the applicable LANDOLL machine,
whichever period is longer. LANDOLL makes no warranty, whatsoever, as to
purchased component parts and other trade accessories, except to the extent
that such items are warranted by the manufacturer thereof. THIS WARRANTY
IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, WHETHER EX-
PRESSED, IMPLIED, OR STATUTORY (INCLUDING WARRANTIES OF MER-
CHANTABILITY AND FITNESS FOR PURPOSE), AND LANDOLL SHALL NOT
BE LIABLE FOR SPECIAL OR CONSEQUENTIAL DAMAGES OF ANY KIND ON
ACCOUNT OF ANY LANDOLL PRODUCT.
NO EMPLOYEE OR REPRESENTATIVE IS AUTHORIZED TO CHANGE THIS
WARRANTY, VERBALLY OR IN WRITING, OR GRANT ANY OTHER WAR-
RANTY.
LANDOLL CORPORATION, WHOSE POLICY IS ONE OF CONTINUOUS IM-
PROVEMENT, RESERVES THE RIGHT TO MAKE CHANGES WITHOUT OBLI-
GATION TO MODIFY PREVIOUSLY PRODUCED EQUIPMENT.

MODEL 336C
CAR CARRIER
OPERATOR’S MANUAL
PURCHASED FROM: DATE /
ADDRESS:
PHONE NO.: SERIAL NO.:

REPORTING SAFETY DEFECTS
If you believe that your vehicle has a defect which could cause a crash or could
cause injury or death, you should immediately inform the National Highway Traffic
Safety Administration (NHTSA) in addition to notifying Landoll Manufacturing.
If NHTSA receives similar complaints, it may open an investigation, and if it
finds that a safety defect exists in a group of vehicles, it may order a recall and
remedy campaign. However, NHTSA cannot become involved in individual prob-
lems between you, your dealer, or Landoll Manufacturing.
To contact NHTSA, you may either call the Auto Safety Hotline toll-free at 1-800-
424-9393 (or 366-0123 in Washington, D.C. area) or write to: NHTSA, U.S. Depart-
ment of Transportation, Washington, D.C. 20590. You can also obtain other infor-
mation about motor vehicle safety from the Hotline.
In the event of a defect or problem with your LANDOLL equipment, please notify
LANDOLL CORPORATION:
LANDOLL CORPORATION
SALES AND SERVICE
1900 NORTH STREET
MARYSVILLE, KANSAS 66508
OR PHONE:
1-800-HAULOLL
(1-800-428-5655)
FAX NO.: [phone]
FOR REPLACEMENT PARTS:
[phone]
1-800-423-4320
FAX NO.: [phone]
i

TABLE OF CONTENTS
SECTION DESCRIPTION PAGE NO.
1 INTRODUCTION
2 STANDARD SPECIFICATIONS
3 OPERATING INSTRUCTIONS
3-1 GENERAL ...........................................3-1
3-2 PRE-COUPLING OF SEMITRAILER AND TRACTOR ...........3-2
3-3 COUPLING OF THE TRACTOR TO THE SEMITRAILER .........3-3
3-4 CONNECTING TRACTOR SERVICES TO THE SEMITRAILER ....3-3
3-5 TRACTOR AND SEMITRAILER CHECK-OUT .................3-4
3-6 TOWING THE SEMITRAILER .............................3-5
3-7 PARKING THE SEMITRAILER ............................3-6
3-8 UNCOUPLING TRACTOR FROM SEMITRAILER...............3-6
3-9 HYDRAULIC AND AIR LOCK CONTROLS ...................3-7
3-10 WINCH CONTROLS ....................................3-8
3-11 REMOTE CONTROL OPERATION .........................3-9
3-12 ADJUSTING ADJUSTMENT ARMS........................3-10
3-13 PREPARATION FOR LOADING PROCEDURE ...............3-11
3-14 LOADING THE 331 OVER-THE-CAB DECK .................3-13
3-15 LOADING THE UPPER DECK ...........................3-14
3-16 LOADING THE LOWER DECK ...........................3-15
3-17 SECURING THE LOAD.................................3-17
3-18 UNLOADING THE LOWER DECK.........................3-18
3-19 UNLOADING UPPER DECK .............................3-18
3-20 UNLOADING THE 331 OVER-THE-CAB DECK ...............3-19
3-21 REAR IMPACT GUARD SYSTEM .........................3-19
3-22 ANTI-LOCK BRAKE SYSTEM (ABS) ......................3-21
3-23 COLD WEATHER OPERATION ..........................3-22
3-24 HOT WEATHER OPERATION............................3-22
4 MAINTENANCE AND LUBRICATION
4-1 MAINTENANCE SCHEDULE. .............................4-1
4-2 MAINTENANCE PROCEDURES. ..........................4-4
4-3 FRAME, AND DECK....................................4-4
4-4 HYDRAULIC SYSTEM ..................................4-5
4-5 ELECTRICAL SYSTEM .................................4-8
4-6 REMOTE CONTROL ...................................4-8
4-7 SUSPENSION MAINTENANCE ............................4-9
4-8 ALIGNMENT ........................................4-10
4-9 BRAKE SYSTEM MAINTENANCE ........................4-13
4-10 HUB AND DRUM MAINTENANCE ........................4-19
4-11 WHEEL BEARING LUBRICATION AND ADJUSTMENT.........4-22
4-12 TIRE MAINTENANCE. .................................4-23
4-13 WINCHES ..........................................4-24
4-14 AIR SYSTEM FILTER AND LUBRICATOR ..................4-26
5 TROUBLESHOOTING GUIDE
ii

SAFETY PRECAUTIONS
THIS IS THE SAFETY ALERT SYMBOL. IT IS USED TO ALERT YOU
TO POTENTIAL INJURY HAZARDS. OBEY ALL SAFETY MESSAGES
THAT FOLLOW THIS SYMBOL TO AVOID POSSIBLE INJURY OR
DEATH.
DANGER DANGER INDICATES AN IMMINENTLY HAZARDOUS SITUA-
TION WHICH, IF NOT AVOIDED, WILL RESULT IN DEATH OR
SERIOUS INJURY.
WARNING WARNING INDICATES A POTENTIALLY HAZARDOUS SITUA-
TION WHICH, IF NOT AVOIDED, COULD RESULT IN DEATH OR
SERIOUS INJURY.
CAUTION CAUTION INDICATES A POTENTIALLY HAZARDOUS SITUA-
TION WHICH, IF NOT AVOIDED, MAY RESULT IN MINOR OR
MODERATE INJURY.
CAUTION CAUTION USED WITHOUT THE SAFETY ALERT SYMBOL INDI-
CATES A POTENTIALLY HAZARDOUS SITUATION WHICH, IF
NOT AVOIDED, MAY RESULT IN PROPERTY DAMAGE.
iii

1INTRODUCTION
This manual provides operating, servicing, and maintenance instructions, with detailed parts lists for
Model 336C car carrier, manufactured by Landoll Corporation, Marysville, Kansas 66508.
SECTION 1 gives basic instructions on the use of this manual.
SECTION 2 gives specifications for the semitrailer, including measurements and component
specifications. A Standard Bolt Torque Table is provided to give guidelines for
bolt torques to be used when servicing this product.
SECTION 3 gives instructions for the proper operation of the equipment.
SECTION 4 gives general maintenance procedures, a maintenance schedule, and a lubrication
schedule. Improper maintenance will void your warranty.
IF YOU HAVE ANY QUESTIONS CONTACT:
LANDOLL CORPORATION
1900 NORTH STREET
MARYSVILLE, KANSAS 66508
or phone:
[phone] or
[phone]
or FAX:
[phone]
SECTION 5 is a troubleshooting guide to aid in diagnosing and solving problems with the
semitrailer.
PARTS LIST is a separate manual showing the various assemblies, subassemblies, and sys-
tems. Refer to that manual when ordering Landoll replacement parts. Order parts
from your Landoll dealer or call the Landoll Parts Distribution Center at:
[phone] or
[phone] or
FAX: [phone]
WARRANTY The Warranty Registration Card is located with the product documents. Fill it out
and mail it within 15 days of purchase. The Warranty is printed inside the front
cover.
NOTE: IMPROPER ASSEMBLY, MODIFICATION, OR MAINTENANCE OF YOUR
LANDOLL EQUIPMENT CAN VOID YOUR WARRANTY.
COMMENTS Address comments or questions regarding this publication to:
LANDOLL CORPORATION
1900 NORTH STREET
MARYSVILLE, KANSAS 66508
ATTENTION: PUBLISHING -DEPT. 55
1-1

2STANDARD SPECIFICATIONS
MODEL 331 - SINGLE CAR CARRIER (OVER-THE-CAB)
DECK:
LENGTH ............................................................13’-0"
OUTSIDE WIDTH ........................................................92"
INSIDE WIDTH..........................................................84"
CAPACITY ..........................................................1CAR
WINCH:
QUANTITY ..............................................................1
CAPACITY ........................................................8,000 LB.
CABLE LENGTH ........................................................65’
FRONT OVERHANG ....................................................24"TO36"
MODEL 336C - 6 CAR CARRIER
OVERALL LENGTH: ....................................................48’OR52’
OVERALL WIDTH: .......................................................... 102"
WEIGHT: .......................................................19,100-19,400 LB.
UPPER DECK:
INSIDE WIDTH..........................................................87"
DECK HEIGHT (TRANSPORT POSITION) ................................98"-119"
LOWER DECK:
INSIDE WIDTH..........................................................94"
DECK HEIGHT (TRANSPORT POSITION) .....................................34"
WINCH:
QUANTITY ..............................................................6
CAPACITY ........................................................8,000 LB.
CABLE LENGTH ........................................................65’
PIN SETTING:...............................................................15"
SWING CLEARANCE:.........................................................75"
CAPACITY:
VEHICLES...............................................................6
TOTAL VEHICLE WEIGHT ALLOWED .................................. 24,000 LB.
GAWR ........................................................18,160 LB.
GVWR ........................................................44,000 LB.
LOADING ANGLES:
UPPER DECK ....................................................17°TO23°
LOWER DECK .................................................... 8°TO12°
CONTROL .......................................MANUAL AND REMOTE HYDRAULIC
2-1

HYDRAULIC HOOKUP:
QUICK COUPLERS......................................................3/4"
MAXIMUM OPERATING PRESSURE** ....................................2500 PSI
OPERATING FLOW** .................................................17GPM
ELECTRICAL HOOKUP:.....................................7-WAY CONNECTOR
AIR HOOKUP:..................................................GLAD HANDS
SPECIFIC BOLT TORQUES
AIR RIDE SUSPENSION:
EQUALIZER BEAM PIVOT BOLT: ....................................800FT.-LBS.
SHOCK ABSORBER MOUNTING: ....................................150FT.-LBS.
AIR SPRING MOUNTING: 1/2" ......................................35FT.-LBS.
3/4" ......................................35FT.-LBS.
WHEEL FASTENERS - ALL MODELS:
OUTER SPINDLE NUTS ........................................250-400 FT.-LBS.
PILOT WHEEL NUTS.......................................... 450-500 FT.-LBS.
DISK WHEEL INNER WHEEL NUTS ...............................450-500 FT.-LBS.
DISK WHEEL OUTER WHEEL NUTS .............................. 450-500 FT.-LBS.
* TIRE, BRAKE, AXLE, OR WHEEL SELECTION MAY LIMIT CAPACITY.
** TRACTOR HYDRAULIC POWER SUPPLY MUST BE CAPABLE OF OPERATING AT THIS PRES-
SURE AND FLOW RATE AND BE EQUIPPED WITH A PRESSURE RELIEF VALVE SET AT THIS
PRESSURE.
2-2

2-3
LANDOLL CORPORATION
GENERAL TORQUE SPECIFICATIONS (REV. 4/97)
THIS CHART PROVIDES TIGHTENING TORQUES FOR GENERAL PURPOSE APPLICATIONS WHEN SPECIAL TORQUES ARE NOT SPECIFIED
ON PROCESS OR DRAWING.
ASSEMBLY TORQUES APPLY TO PLATED NUTS AND CAPSCREWS ASSEMBLED WITHOUT SUPPLEMENTAL LUBRICATION (AS RECEIVED
CONDITION). THEY DO NOT APPLY IF SPECIAL GRAPHITE MOLY-DISULFIDE OR OTHER EXTREME PRESSURE LUBRICANTS ARE USED.
WHEN FASTENERS ARE DRY (SOLVENT CLEANED), ADD 33% TO AS RECEIVED CONDITION TORQUE.
BOLT HEAD IDENTIFICATION MARKS INDICATE GRADE AND MAY VARY FROM MANUFACTURER TO MANUFACTURER.
THICK NUTS MUST BE USED ON GRADE 8 CAPSCREWS.
USE VALUE IN [ ] IF USING PREVAILING TORQUE NUTS.
TORQUE IS SPECIFIED IN FOOT POUNDS
UNC
Size SAE Grade
2
SAE
Grade
5
SAE
Grade
8
UNF
Size SAE Grade
2
SAE
Grade
5
SAE
Grade
8
1/4-20 4 [5] 6 [7] 9 [11] 1/4-28 5 [6] 7 [9] 10 [12]
5/16-18 8 [10] 13 [16] 18 [22] 5/16-24 9 [11] 14 [17] 20 [25]
3/8-16 15 [19] 23 [29] 35 [43] 3/8-24 17 [21] 25 [31] 35 [44]
7/16-14 24 [30] 35 [43] 55 [62] 7/16-20 27 [34] 40 [50] 60 [75]
1/2-13 35 [43] 55 [62] 80 [100] 1/2-20 40 [50] 65 [81] 90 [112]
9/16-12 55 [62] 80 [100] 110 [137] 9/16-18 60 [75] 90 [112] 130 [162]
5/8-11 75 [94] 110 [137] 170 [212] 5/8-18 85 [106] 130 [162] 180 [225]
3/4-10 130 [162] 200 [250] 280 [350] 3/4-16 150 [188] 220 [275] 320 [400]
7/8-9 125 [156] 320 [400] 460 [575] 7/8-14 140 [175] 360 [450] 500 [625]
1-8 190 [237] 408 [506] 680 [850] 1-14 210 [263] 540 [675] 760 [950]
1-1/8-7 270 [337] 600 [750] 960 [1200] 1-1/8-12 300 [375] 660 [825] 1080 [1350]
1-1/4-7 380 [475] 840 [1050] 1426 [1782] 1-1/4-12 420 [525] 920 [1150] 1500 [1875]
1-3/8-6 490 [612] 110 [1375] 1780 [2225] 1-3/8-12 560 [700] 1260 [1575] 2010 [2512]
1/1-2-6 650 [812] 1460 [1825] 2360 [2950] 1/1-2-12 730 [912] 1640 [2050] 2660 [3325]
METRIC
COARSE THREAD METRIC CLASS 10.9 FASTENERS AND CLASS 10.0 NUTS AND THROUGH HARDENED FLAT WASHERS, PHOSPHATE
COATED, ROCKWELL C 38-45.
USE VALUE IN [ ] IF USING PREVAILING TORQUE NUTS.
Nominal
Thread
Diameter
mm
Standard Torque Nominal
Thread
Diameter
mm
Standard Torque
Newton-
Meters Foot- Pounds Newton- Meters Foot- Pounds
6 10 [14] 7 [10] 20 385 [450] 290 [335]
7 16 [22] 12 [16] 24 670 [775] 500 [625]
8 23 [32] 17 [24] 27 980 [1105] 730 [825]
10 46 [60] 34 [47] 30 1330 [1470] 990 [1090]
12 80 [101] 60 [75] 33 1790 [1950] 1340 [1450]
14 125 [155] 90 [115] 36 2325 [2515] 1730 [1870]
16 200 [240] 150 [180] 39 3010 [3210] 2240 [2380]
18 275 [330] 205 [245]
Table 2-1 General Torque Specifications

2-4
LANDOLL CORPORATION
HYDRAULIC FITTING TORQUE SPECIFICATIONS
37oJIC, ORS, & ORB (REV. 10/97)
THIS CHART PROVIDES TIGHTENING TORQUES FOR HYDRAULIC FITTING APPLICATIONS WHEN SPECIAL TORQUES ARE NOT SPECIFIED
ON PROCESS OR DRAWING.
ASSEMBLY TORQUES APPLY TO PLATED CARBON STEEL AND STAINLESS STEEL FITTINGS ASSEMBLED WITHOUT SUPPLEMENTAL
LUBRICATION (AS RECEIVED CONDITION). THEY DO NOT APPLY IF SPECIAL GRAPHITE MOLY-DISULFIDE OR OTHER EXTREME PRESSURE
LUBRICANTS ARE USED.
BRASS FITTINGS AND ADAPTERS - 65% OF THE TORQUE VALUE FOR STEEL. STAINLESS STEEL, ALUMINUM AND MONEL - THREADS ARE
TO BE LUBRICATED.
TORQUE IS SPECIFIED IN FOOT POUNDS
PARKER BRAND FITTINGS
Dash
Size 37 Degree JIC O-Ring (ORS) O-Ring Boss (ORB)
-4 11-13 15-17 13-15
-5 14-16  21-23
-6 20-22 34-36 25-29
-8 43-47 58-62 40-44
-10 55-65 100-110 57.5-62.5
-12 80-90 134-146 75-85
-16 115-125 202-218 109-121
-20 160-180 248-272 213-237
-24 185-215 303-327 238-262
-32 250-290  310-340
LANDOLL CORPORATION
HYDRAULIC FITTING TORQUE SPECIFICATIONS
37oJIC, ORS & ORB (REV. 10/97)
THIS CHART PROVIDES TIGHTENING TORQUES FOR HYDRAULIC FITTING APPLICATIONS WHEN SPECIAL TORQUES ARE NOT SPECIFIED
ON PROCESS OR DRAWING.
ASSEMBLY TORQUES APPLY TO PLATED CARBON STEEL AND STAINLESS STEEL FITTINGS ASSEMBLED WITHOUT SUPPLEMENTAL
LUBRICATION (AS RECEIVED CONDITION). THEY DO NOT APPLY IF SPECIAL GRAPHITE MOLY-DISULFIDE OR OTHER EXTREME PRESSURE
LUBRICANTS ARE USED.
BRASS FITTINGS AND ADAPTERS - 65% OF THE TORQUE VALUE FOR STEEL.
TORQUE IS SPECIFIED IN FOOT POUNDS.
AEROQUIP BRAND FITTINGS
Dash
Size 37 Degree JIC O-Ring (ORS) O-Ring Boss (ORB)
-4 11-12 10-12 14-16
-5 15-16  18-20
-6 18-20 18-20 24-26
-8 38-42 32-35 50-60
-10 57-62 46-50 72-80
-12 79-87 65-70 125-135
-14   160-180
-16 108-113 92-100 200-220
-20 127-133 125-140 210-280
-24 158-167 150-165 270-360
-32 245-258  
Table 2-2 Hydraulic Fitting Torque Specifications

3OPERATING INSTRUCTIONS
3-1 GENERAL
This section supplies information for operation
of the semitrailer. It describes and locates controls
and gives general operations procedures. Read all
instructions, warnings, cautions, and danger notes
before attempting to operate the semitrailer. Op-
erators must have proper training before operating
the semitrailer.
WARNING
DO NOT OPERATE THE SEMITRAILER
WITH ANY KNOWN FAULT THAT
MIGHT ENDANGER THE OCCUPANTS,
NEARBY WORKERS, OTHER TRAFFIC,
THE LOAD, OR THE EQUIPMENT
WARNING
DO NOT OPERATE THE SEMITRAILER
UNTIL YOU HAVE READ THE OPERA-
TOR’S MANUAL AND COMPLETELY
UNDERSTAND THE PROPER USE AND
FUNCTION OF ALL CONTROLS. IM-
PROPER USE CAN CAUSE PERSONAL
INJURY, DAMAGE TO YOUR SEMI-
TRAILER AND CARGO, AND CAUSE
TIME-CONSUMING BREAKDOWNS.
3-1.1 Landing Gear
The landing gear consists of two legs with a
tube telescoping within another tube. Pin drop style
is installed on the semitrailer.
3-1.2 Parking Brake
The parking brakes are automatically applied
by spring pressure with the air actuators of the
braking system when air pressure in the emer-
gency line drops below 70 psi. This may be done
within the truck using the trailer parking/emergency
valve or by disconnecting the emergency glad-
hand.
3-1.3 Air Brake System
The air brake system of the semitrailer is oper-
ated from the towing vehicle after coupling. The
towing vehicle’s air system must be coupled to the
semitrailer and charged to 90 psi minimum before
brakes can adequately function.
3-1.4 Anti-Lock Brakes
The Anti-Lock Brake System of the semitrailer
is constant powered by the auxiliary (blue) circuit
of the seven way electrical connector, with backup
power from the stop lamp (red) circuit, and ground
through the white wire. It is necessary that the blue
circuit is hot when the tractor key switch is on. The
blue circuit on the trailer may also not be used to
power any additional auxiliary devices while the
semitrailer is moving forward. If a fault exists in the
ABS, normal braking will occur, but the wheels
may lock. Service the ABS as soon as possible.
CAUTION
THE AUXILIARY (BLUE) CIRCUIT IS
FOR POWERING THE SEMITRAILER
ABS. THIS CIRCUIT MUST BE HOT
WHEN THE TRACTOR KEY SWITCH IS
ON. NO OTHER ELECTRICAL DEVICES
MAY BE POWERED BY THIS CIRCUIT
WHILE THE SEMITRAILER IS MOVING
FORWARD.
3-1

CAUTION
IF A FAULT EXISTS IN THE SEMI-
TRAILER ABS, NORMAL BRAKING
WILL OCCUR, BUT WHEELS MAY
LOCK. SERVICE THE ABS AS SOON
AS POSSIBLE.
3-1.5 Electrical
The only electrical operation required of the
operator is interconnection of the towing vehicle
electrical cable plug with the semitrailer electrical
receptacle. It is necessary that the tractor blue wire
is connected to the appropriate electrical source on
the tractor.
3-1.6 Hydraulic
The controls can also be operated by a radio
transmitter that is supplied standard. A hydraulic
pump must be coupled to the trailer hydraulic sys-
tem before any hydraulic controls can function. The
hydraulic system is designed to operate at 2500
psi maximum pressure and and approximately 17
gpm flow capacity.
3-2 PRE-COUPLING OF SEMITRAILER AND TRACTOR
3-2.1 Slowly back the tractor up to the front
end of the semitrailer so the kingpin of the
semitrailer is centered between the tractor
fifth wheel jaws. Stop the tractor several
inches ahead of the semitrailer. Set tractor
parking brake.
CAUTION
DO NOT OPERATE TRAILER HYDRAU-
LICS UNLESS TRACTOR BRAKES ARE
LOCKED.
3-2.2 The king pin plate should be the same
height as, or slightly lower than, the latch
area of the fifth wheel plate of the tractor. If
necessary, connect the tractor hydraulic
lines. Use the TRAILER TILT CONTROL
(See Figure 3-2) to raise or lower the king-
pin plate sufficiently to allow proper coupling.
Drain all air and moisture from the tractor air
brake system in accordance with the tractor
manufacturer’s instructions.
3-2.3 Connect the service and emergency air
hoses of the tractor to their respective glad-
hand on the front of the semitrailer. The trac-
tor’s air hose couplings are then attached
and locked to the appropriate gladhands; the
red emergency line to the gladhand with the
“EMERGENCY” tag, and the blue service
line to the gladhand with the “SERVICE” tag
(See Figure 3-1). Chock the semitrailer
wheels before activating the semitrailer air
supply valve in the tractor. Set the semitrailer
brakes.
3-2.4 Check the air brake operations of the
semitrailer as follows:
a. Apply brakes and inspect brake action on all
wheels for prompt application.
b. Release brakes. All brakes should release
immediately. Air pressure should discharge
quickly from the system.
c. Disconnect the emergency air line from the
semitrailer gladhand. Semitrailer brakes
should promptly set.
d. Re-connect the emergency air line to the
semitrailer and activate the semitrailer air
supply valve. The semitrailer brakes should
release when the air pressure in the emer-
gency line has built up to 90 psi and stabi-
lized.
3-2

3-3 COUPLING OF THE TRACTOR TO THE SEMITRAILER
DANGER
KEEP ALL PERSONNEL CLEAR OF
FRONT, REAR, AND SIDES OF TRAC-
TOR AND SEMITRAILER DURING COU-
PLING, COMPONENT OPERATIONS,
AND UNCOUPLING. FAILURE TO STAY
CLEAR CAN RESULT IN SERIOUS
PERSONAL INJURY OR DEATH.
3-3.1 Verify the semitrailer wheels are
chocked and brakes function properly.
3-3.2 Make sure the tractor’s fifth wheel cou-
pler is open.
CAUTION
PUSHING SEMITRAILER BACKWARDS
CAN DAMAGE LANDING GEAR.
3-3.3 Slowly back the tractor so its fifth wheel
contacts the front of the kingpin plate on the
semitrailer and slips under it. Continue back-
ing until the fifth wheel coupler locks onto the
semitrailer kingpin.
3-3.4 Try to pull the tractor forward a few
inches to verify the vehicle coupling is se-
cure. If the tractor disconnects from the
semitrailer: locate the source of the coupling
failure; repair before continuing; and repeat
Steps 3-3.3 and 3-3.4.
3-3.5 Check that the tractor couples securely
to the semitrailer before setting tractor and
semitrailer parking brakes.
IMPORTANT
KEEP BRAKES ENGAGED FOR REMAINDER
OF COUPLING, CHECK-OUT, AND PARKING.
3-4 CONNECTING TRACTOR SERVICES TO THE SEMITRAILER
3-4.1 Connect the tractor 7-pole electrical
plug to the electrical receptacle on the front
of the semitrailer (See Figure 3-1).
3-4.2 Connect the 4-pole electrical cable from
the over-the-cab deck (331) to the semitrailer
4 pole electrical receptacle.
IMPORTANT
THE KEY ON THE PLUG AND THE KEYWAY IN
THE SOCKET MUST BE PROPERLY ALIGNED
BEFORE INSERTING THE PLUG INTO THE
SEMITRAILER SOCKET.
3-4.3 Connect the tractor hydraulic lines to
the semitrailer.
3-3
Figure 3-1 Service Hookups ( Front View)

3-5 TRACTOR AND SEMITRAILER CHECK-OUT
3-5.1 While hydraulic power is operating, raise
the front end of the semitrailer with the
TRAILER TILT CONTROL (See Figure 3-2)
until weight is off the landing gear. Raise
landing gear. Secure each leg with a park
stand retaining pin in fully retracted position
before transporting.
WARNING
FAILURE TO PROPERLY SET AND
CHECK PARKING BRAKE, AND
CHOCK WHEELS WHEN PARKING
AND DURING STORAGE, COULD AL-
LOW MOVEMENT OF THE
TRUCK/SEMITRAILER RIG RESULT-
ING IN SERIOUS PERSONAL INJURY,
DEATH, OR DAMAGE TO PROPERTY
IN ITS PATH.
WARNING
LANDING GEAR LEGS MUST BE
FULLY RETRACTED AND SECURED
WITH PINS BEFORE OPERATING OR
MOVING SEMITRAILER.
3-5.2 Lower the front end with the TRAILER
TILT CONTROL until the semitrailer is fully
lowered. Hold lever in the down position until
hydraulic system works against the bottomed
out hydraulic tilt cylinders.
3-5.3 Verify that the traveling undercarriage is
completely slid back to transport position.
Shut off hydraulic power.
3-5.4 Check the operation of all lights and sig-
nals on the semitrailer for proper response to
switch positions (stop, right turn, left turn and
clearance).
3-5.5 Check that tire inflation matches the
pressure listed on the tire.
3-5.6 Check tractor/semitrailer rig for air leaks.
If air leakage is found, repair the defect before
transporting.
3-5.7 Check that the oil in each hub is at the
proper level and free from contamination. If
hubs contain water, dirt, or other foreign mat-
ter, clean them before transporting.
3-5.8 Check tractor air pressure. Pressure
must not fall below 90 psi, even after activat-
ing brakes a couple of times. Set parking
brake and carefully remove all wheel chocks.
Set emergency brake and try pulling forward.
The semitrailer wheels must not rotate. If
semitrailer brakes do not apply, do not trans-
port until defect, or defects, are repaired.
3-5.9 Check your maintenance schedule and
be sure everything is up-to-date.
3-4

3-6 TOWING THE SEMITRAILER
3-6.1 Driving the tractor with the semitrailer
coupled behind requires constant attention to
the overall length. Turning, passing, acceler-
ating, braking, stopping, and back-up require
special considerations. When executing
steep grades or turning tight curves, the
semitrailer must not be allowed to push the
tractor, or jackknifing may result. Application
of the semitrailer brakes to keep the semi-
trailer in tow will help prevent this situation.
To assure control, brake before descending a
hill or attempting a curve.
CAUTION
WHEN OPERATING SEMITRAILER, DO
NOT BACK OVER CURB. THIS WILL
CAUSE SEVERE DAMAGE TO UNDER-
CARRIAGE AND UNDERCARRIAGE
CYLINDER.
3-6.2 Make a moving test of the semitrailer
brakes at low, and medium speeds before
traveling at highway speeds.
a. The Anti-Lock Brake System (ABS) warning
lamp mounted at left rear side of the trailer
should come on when power is supplied to
the ABS by turning the tractor keyswitch on.
The warning lamp should go off once the
trailer exceeds 4 mph. Once the vehicle
speed exceeds 4 mph, the light should remain
off unless a fault occurs or the keyswitch is
turned off, then on again.
b. If the warning lamp does not go off, a fault
exists in the trailer ABS. If fault exists, service
using the anti-lock brake system section of
the troubleshooting section of this manual.
CAUTION
IF A FAULT EXISTS IN THE TRAILER
ABS, NORMAL BRAKING WILL OC-
CUR, BUT WHEELS MAY LOCK. SERV-
ICE THE ABS AS SOON AS POSSIBLE.
3-6.3 Monitor the air pressure gauge on the
dash of the tractor. Pressure should not fall
below 80 psi at any time.
3-6.4 The semitrailer wheels track to the in-
side of the tractor during turns. Thus, turning
corners requires a wide swing to prevent
“curb hopping”, and to allow the semitrailer
wheels to clear any obstacle on the inside of
the corner.
3-6.5 To stop, use a gradual and smooth appli-
cation of brakes. If grabbing occurs, apply less
pressure. Grabbing brakes are not efficient.
WARNING
ALWAYS CHECK BEHIND AND UNDER
THE TRACTOR AND SEMITRAILER
FOR PERSONS OR OBJECTS BEFORE
MOVING. FAILURE TO CHECK CAN
LEAD TO SERIOUS PERSONAL IN-
JURY, DEATH, OR DAMAGE TO PROP-
ERTY.
3-6.6 Backing should be done with care. Tail
overhang, semitrailer length, and allowable
space must be taken into consideration.
3-5

3-7 PARKING THE SEMITRAILER
3-7.1 Position tractor/trailer rig on a level,
solid surface.
3-7.2 Set the PARKING BRAKE, not the
semitrailer emergency hand brake, and
check for proper brake holding.
DANGER
FAILURE TO PROPERLY SET PARK-
ING BRAKE, AND CHOCK WHEELS
WHEN PARKING AND DURING STOR-
AGE, COULD ALLOW MOVEMENT OF
THE TRACTOR/TRAILER RESULTING
IN DAMAGE TO PROPERTY, SERIOUS
PERSONAL INJURY, OR DEATH.
3-7.3 Chock wheels.
3-7.4 Check for any air leaks in lines, relay
valve, brake pods, or any other air system
component.
WARNING
WHEN LEAVING THE SEMITRAILER
UNATTENDED, POSITION ALL HY-
DRAULIC CONTROLS TO THE NEU-
TRAL OR “OFF” POSITION AND DIS-
CONNECT THE TRACTOR HYDRAULIC
HOOK-UP.
3-8 UNCOUPLING TRACTOR FROM SEMITRAILER
3-8.1 Park the semitrailer according to instruc-
tions in Section 3-7.
3-8.2 Do not exceed the allowable load on
the landing gear. If the trailer is fully loaded,
move the undercarriage forward ninety (90)
inches before disconnecting the trailer from
the tractor or until load is equalized, or not
tail heavy.
3-8.3 If the trailer is partially loaded, move the
undercarriage forward, but not enough to
cause the trailer to be “tail heavy”. Do not
move the undercarriage after the trailer has
been disconnected from the tractor.
CAUTION
THE LOAD ON THE PARK STANDS
MUST NOT EXCEED 10,000 POUNDS.
3-8.4 Remove retaining pin and lower land-
ing gear to the ground. Hydraulically raise
the front end of the semitrailer until the
next hole in the landing gear is available.
Insert pin through both inner and outer legs
of the landing gear. Hydraulically lower
semitrailer onto the legs.
WARNING
SECURE EACH LEG WITH A PIN BE-
FORE LEAVING THE SEMITRAILER
UNATTENDED.
3-8.5 Pull the tractor fifth wheel plate latch re-
lease.
3-8.6 Disconnect emergency and service air
lines and attach them to the tractor gladhand
holders.
3-8.7 Disconnect the 4 and 7-pole cables and
the hydraulic lines from the semitrailer and
store with the tractor.
3-8.8 Attempt to pull the tractor forward. If the
tractor uncouples, verify that all service lines
are disconnected and semitrailer wheels are
chocked. If tractor does not disconnect, re-
peat Step 3-8.5.
3-8.9 Pull the tractor away from the semi-
trailer.
3-6

3-9 HYDRAULIC AND AIR LOCK CONTROLS
3-9.1 For manual control operation, switch the
toggle on the right end of the control panel to
“MANUAL". For remote control operation,
switch the toggle on the right end of the con-
trol panel to “REMOTE” and refer to Sec-
tion 3-11 instructions. The MANUAL LOCK
CONTROLS on the air valves must be in the
lock position for remote operation of the air
valves (See Figure 3-2).
3-9.2 The WINCH CONTROLS are described
in Section 3-10.
3-9.3 The TRAILER TILT CONTROL is the
first tilt control on the hydraulic control panel.
It has three positions.
UP In this position, the front end of the
trailer is raised.
CENTER This is the neutral position.
DOWN In this position, the front end of the
trailer is lowered.
3-9.4 The DECK TILT CONTROLS operate
the three sets of arms which support the up-
per deck. They have three positions.
UP In this position, the arms are ex-
tended raising that part of the upper
deck.
CENTER This is the neutral position.
DOWN In this position, the arms are re-
tracted lowering that part of the up-
per deck.
3-9.5 The UNDERCARRIAGE TRAVEL (AX-
LES) CONTROLS slides the undercarriage
forward and backward.
UP In this position, the undercarriage is
moved forward.
CENTER This is the neutral position.
DOWN In this position, the undercarriage is
moved back.
3-9.6 The MANUAL LOCK CONTROLS are
the levers on the air valves next to the Hy-
draulic control valves. There is one for each
of the deck tilt arms. They have two posi-
tions.
LOCK Turn the lever counter-clockwise as
far as it will go. In this position the
arm is locked and will not move up
or down. The control must be in this
position for remote operation. Acti-
vating the REMOTE DECK TILT
CONTROLS automatically unlocks
arms.
UNLOCK Turn the lever clockwise as far as it
will go. In this position, the arm will
unlock when the DECK TILT CON-
TROL is joggled. Use this position
only when using MANUAL DECK
TILT CONTROLS.
3-7
Figure 3-2 Hydraulic Control Levers

3-10 WINCH CONTROLS
DANGER
1. THE WINCH IS NOT DESIGNED OR
INTENDED TO BE USED FOR LIFTING
OR MOVING PEOPLE. USING IT THIS
WAY CAN CAUSE SERIOUS INJURY
OR DEATH.
2. NEVER ATTEMPT TO DISENGAGE
THE WINCH CABLE SPOOL WHEN THE
CABLE IS UNDER TENSION. THE LOAD
CAN ROLL AWAY. SERIOUS INJURY OR
DEATH CAN RESULT IF PEOPLE ARE IN
THE PATH OF THE ROLLING LOAD.
3. FAILURE TO LEAVE AT LEAST FIVE
WINCH CABLE WRAPS ON THE WINCH
CABLE SPOOL COULD ALLOW THE
CABLE TO COME OFF THE SPOOL,
RESULTING IN SERIOUS PERSONAL
INJURY OR DEATH.
3-10.1 The WINCH CLUTCH (See Figure 3-3)
is located on the end of the winch.
IN In this position, the clutch is engaged
and the hydraulic winch controls will
power spool the cable in or out.
OUT In this position, the clutch is disen-
gaged and the winch will free-wheel.
To lock in the disengaged position,
pull handle all the way out and turn a
quarter turn.
3-10.2 The WINCH HYDRAULIC CONTROLS
(See Figure 3-2) are located on the hydrau-
lic control panel or the remote control (See
Figure 3-4) if present. It is a three position
control:
IN This position will cause the winch to
reel cable onto the winch spool when
the winch clutch handle is engaged.
CENTER This is neutral position. This position
will not operate the winch.
OUT This position will cause the winch to
reel cable off of the winch spool
when the winch is engaged.
3-10.3 Operating the Winch
a. Disengage the WINCH CLUTCH when pull-
ing the winch cable out by hand.
b. Connect the hook to the vehicle and engage
the WINCH CLUTCH.
3-10.4 Use the WINCH HYDRAULIC CON-
TROL to pull a vehicle onto the trailer or to
let a vehicle off of the trailer.
3-8
Figure 3-3 Winch Clutch