Landoll 345B User manual

MODEL 345B
TRAILER
OPERATOR’S MANUAL
1900 North Street
Marysville, KS 66508
[phone]
F-272-398 3/98

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 workmanship, 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 op-
tion, freight on board (f.o.b.) at its factory or designated DEALER loca-
tion, any part or parts of such new and unused 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, transpor-
tation, 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 assembly or repair, or if the machine has been altered, abused, or
neglected. LANDOLL 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 war-
ranted by the manufacturer thereof. THIS WARRANTY IS EXCLUSIVE
AND IN LIEU OF ALL OTHER WARRANTIES, WHETHER EXPRESSED,
IMPLIED, OR STATUTORY (INCLUDING WARRANTIES OF MERCHANT-
ABILITY 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
WARRANTY.
LANDOLL CORPORATION, WHOSE POLICY IS ONE OF CONTINUOUS
IMPROVEMENT, RESERVES THE RIGHT TO MAKE CHANGES WITHOUT
OBLIGATION TO MODIFY PREVIOUSLY PRODUCED EQUIPMENT.

MODEL 345B
TRAILER
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:
[phone]
1-800-HAULOLL
(1-800-428-5655)
FAX NO.: [phone]
i

TABLE OF CONTENTS
SECTION DESCRIPTION PAGE NO.
1 INTRODUCTION ........................................1-1
2 STANDARD SPECIFICATIONS .............................2-1
3 OPERATING INSTRUCTIONS ..............................3-1
3-1 GENERAL ...........................................3-1
3-2 PRE-COUPLING OF TRAILER AND TRUCK ..................3-2
3-3 COUPLING OF THE TOWING VEHICLE TO THE TRAILER.......3-3
3-4 CONNECTING TOWING VEHICLE SERVICES TO THE TRAILER . . 3-3
3-5 TOWING VEHICLE AND TRAILER HOOK-UP AND CHECK-OUT . . 3-3
3-6 TOWING THE TRAILER .................................3-4
3-7 PARKING THE TRAILER ................................3-5
3-8 UNCOUPLING TOWING VEHICLE FROM TRAILER ............3-5
3-9 WINCHCONTROLS....................................3-6
3-10 AXLE CONTROL LEVER ................................3-7
3-11 TRAILER TILT LEVER ..................................3-7
3-12 LOADING THE TRAILER ................................3-8
3-13 UNLOADING THE TRAILER ..............................3-9
3-14 AUXILIARY HYDRAULIC POWER ENGINE OPERATION .......3-12
3-15 DOCK LEVELER CONTROL.............................3-13
3-16 REAR IMPACT GUARD SYSTEM .........................3-15
3-17 ANTI-LOCK BRAKE SYSTEM (ABS) ......................3-15
3-18 REMOTE OPERATION .................................3-16
3-19 COLD WEATHER OPERATION ..........................3-16
3-20 HOT WEATHER OPERATION............................3-17
4 MAINTENANCE AND LUBRICATION ........................4-1
4-1 MAINTENANCE SCHEDULE .............................4-1
4-2 MAINTENANCE PROCEDURES ...........................4-4
4-3 HITCH, FRAME, AND DECK..............................4-4
4-4 HYDRAULIC SYSTEM ..................................4-8
4-5 ELECTRICAL SYSTEM .................................4-8
4-6 SUSPENSION MAINTENANCE ............................4-9
4-7 ALIGNMENT ........................................4-10
4-8 BRAKE SYSTEM MAINTENANCE ........................4-13
4-9 HUB AND DRUM MAINTENANCE ........................4-19
4-10 WHEEL BEARING LUBRICATION AND ADJUSTMENT.........4-22
4-11 TIRE MAINTENANCE ..................................4-23
4-12 WINCHES ..........................................4-26
5 TROUBLESHOOTING....................................5-1
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, for Model 345B trailer, manu-
factured by Landoll Corporation, Marysville, Kansas 66508.
SECTION 1 gives basic instructions on the use of this manual.
SECTION 2 gives specifications for the trailer, including measurements and component speci-
fications. 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
trailer.
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.
WARRANTY The Warranty Registration form 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 MACHINE CAN VOID YOUR WARRANTY.
COMMENTS Address comments or questions regarding this publication to:
LANDOLL CORPORATION
1900 NORTH STREET
MARYSVILLE, KANSAS 66508
ATTENTION: PUBLICATIONS - DEPT. 55
1-1

2STANDARD SPECIFICATIONS
CAPACITY*........................40,000 LB. DISTRIBUTED, 30,000 CONCENTRATED IN 10’
OVERALL LENGTH (WITH 48" HITCH): ...........................................35’2"
OVERALL WIDTH: ......................................................96" OR 102"
WEIGHT (102"WIDE, SPRING SUSPENSION, 7’ HITCH, WOOD DECK, 12M WINCH):....12,360 LBS.
HITCH: ..........................................PINTLE HOOK WITH HYDRAULIC TILT
LENGTH..................................................48", 60" OR 84"
HYDRAULIC TRAVELING AXLE: ................................................10’-6"
GROUND LOAD ANGLE: ........................................................ 9
o
DOCK LEVELER CAPACITY (OPTION): .......................................40,000 LB.
HYDRAULIC HOOKUP:
QUICK COUPLERS ...................................................1/2"
MAXIMUM OPERATING PRESSURE ..................................2500 PSI
OPERATING FLOW ...............................................17GPM
ELECTRICAL HOOKUP:...........................................7-WAY CONNECTOR
AIR HOOK UP: .......................................................GLAD HANDS
SPECIFIC BOLT TORQUES
AIR RIDE SUSPENSION:
EQUALIZER BEAM PIVOT AND ADAPTER BOLTS ....................800FT.-LBS.
SHOCK ABSORBER MOUNTING .................................150FT.-LBS.
AIR SPRING MOUNTING: 1/2" ....................................35FT.-LBS.
3/4" ....................................35FT.-LBS.
FOUR SPRING SUSPENSION:
AXLE CLAMP U-BOLTS........................................ 300FT.-LBS.
EQUALIZER BEAM PIVOT BOLT ..............................480-500 FT.-LBS.
TORQUE ARM BOLT ..........................................250FT.-LBS.
TORQUE ARM CLAMP NUTS .....................................60FT.-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.
SPOKE WHEEL NUTS ......................................200-250 FT.-LBS.
* CAPACITY RATINGS ARE FRAME CAPACITIES ONLY. ACTUAL LOAD CAPACITIES MAY BE RE-
STRICTED BY FACTORS SUCH AS GROSS AXLE WEIGHT RATINGS (GAWR) OR STATE AND FED-
ERAL REGULATIONS.
2-1

2-2
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

2-3
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 trailer. It describes and locates controls and
gives general operation procedures. Read all in-
structions, warnings, cautions and danger notes
before attempting to operate the trailer. Operators
must have proper training before operating the
trailer.
A hydraulic pump must be coupled to the
trailer hydraulic system, or the optional hydraulic
engine package started, before using hydraulic
controls.
WARNING
DO NOT OPERATE THE TRAILER WITH
ANY KNOWN FAULT THAT MIGHT EN-
DANGER THE OCCUPANTS, NEARBY
WORKERS, OTHER TRAFFIC, THE
LOAD, OR THE EQUIPMENT.
WARNING
DO NOT OPERATE THE TRAILER UN-
TIL 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 TRAILER
AND CARGO, AND CAUSE TIME-
CONSUMING BREAKDOWNS.
3-1.1 Air Brake System
The air brake system of the trailer is operated
from the towing vehicle after coupling. The towing
vehicle’s air system must be coupled to the trailer
and charged to 90 psi minimum before the brakes
can adequately function.
3-1.2 Anti-Lock Brake System (ABS)
The Anti-Lock Brake System of the trailer 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 TRAILER IS MOVING FOR-
WARD.
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.
3-1

3-2 PRE-COUPLING OF TRAILER AND TRUCK
3-2.1 Slowly back the truck (towing vehicle)
up to the front end of the trailer so the hitch
of the trailer is centered with the truck. Stop
the towing vehicle just inches ahead of the
trailer. Set truck parking brake.
3-2.2 The bolt on hitch can be adjusted to dif-
ferent heights. Make sure the hitch height is
at the correct height so the trailer deck is
about parallel to the ground when loaded.
3-2.3 Make sure the towing truck hitch height
is at the correct height so the trailer deck is
about parallel to the ground when loaded.
CAUTION
OPERATING PRESSURES GREATER
THAN 2500 PSI CAN CAUSE DAMAGE
TO THE TRAILER.
3-2.4 If the trailer hydraulics are powered by
the truck hydraulics clean the hydraulic quick
couplers and connect the trailer to the truck
hydraulic couplers. If trailer is equipped with
auxiliary engine hydraulic power start the en-
gine and, after warm up, advance throttle to
desired speed.
3-2.5 Check the trailer hitch height. The hitch
should be the same height, to slightly higher,
than the hitch of the towing vehicle. If the
trailer hitch is bolted to the trailer at the cor-
rect height, according to Steps 3-2.2 and
3-2.3, raise or lower the hitch by operating
the bed tilt hydraulics until the proper height
has been obtained.
WARNING
FAILURE TO CHOCK TRAILER
WHEELS COULD ALLOW MOVEMENT
OF THE TRAILER RESULTING IN SERI-
OUS PERSONAL INJURY, DEATH, OR
DAMAGE TO PROPERTY IN ITS PATH.
3-2.6 Connect the service and emergency air
hoses of the towing vehicle to their respec-
tive gladhand on the towing truck. The tow-
ing vehicle’s air hose couplings are attached
and locked to the appropriate gladhands; 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).
a. Check the air brake operations of the trailer
as follows:
1. Apply brakes and inspect brake action on
all wheels for prompt application.
2. Release brakes. All brakes should release
immediately. Air pressure should
discharge quickly from the booster valve.
3. Disconnect the emergency air line from the
trailer gladhand. Trailer brakes should
promptly set.
4. Re-connect the emergency air line to the
trailer. The trailer brakes should release.
b. Set the trailer brakes.
3-2
Figure 3-1 Service Hookups

3-3 COUPLING OF THE TOWING VEHICLE TO THE TRAILER
DANGER
KEEP ALL PERSONNEL CLEAR OF
FRONT, REAR, AND SIDES OF TOW-
ING VEHICLE AND TRAILER DURING
COUPLING, COMPONENT OPERA-
TIONS, AND UNCOUPLING. FAILURE
TO STAY CLEAR CAN RESULT IN SE-
RIOUS PERSONAL INJURY OR DEATH.
3-3.1 Verify the trailer wheels are chocked
and brakes function properly.
3-3.2 Make sure the towing vehicle’s coupler
is open.
3-3.3 Raise or lower the pintle hitch eye to
hitch height by activating the bed tilt hydrau-
lic lever, which is the front most lever of the
three levers.
CAUTION
PUSHING THE TRAILER BACKWARDS
CAN DAMAGE PARKING STANDS.
3-3.4 Slowly back the towing vehicle so the
hitch contacts the trailer hitch. Make sure the
hitch is centered and will properly connect
up. Set the vehicle brakes.
3-3.5 Lower pintle eye onto truck hitch by tilt-
ing bed up and lock the hitch in place.
3-3.6 Raise the landing gear (parking stands)
by first tilting the bed up, activating the front
hydraulic lever until the landing gear is off
the ground. Remove pins from landing gear
and slide landing gear fully up to stowed po-
sition. Insert and lock pin holding landing
gear in stowed position. Fully lower bed tilt.
IMPORTANT
KEEP BRAKES ENGAGED FOR REMAINDER
OF HOOKUP, CHECK-OUT PROCEDURES, AND
FOR PARKING.
3-4 CONNECTING TOWING VEHICLE SERVICES TO THE TRAILER
3-4.1 Connect the electrical receptacle on the
front of the trailer to the towing vehicle (See
Figure 3-1). Insure all lights function properly
when energized by towing vehicle electrical
action.
IMPORTANT
THE KEY ON THE PLUG AND THE KEYWAY IN
THE SOCKET MUST BE PROPERLY ALIGNED
BEFORE INSERTING THE PLUG INTO THE
TRAILER SOCKET.
3-4.2 It is necessary that the tractor blue wire
is connected to the appropriate electrical
source on the tractor.
3-3

3-5 TOWING VEHICLE AND TRAILER HOOK-UP AND CHECK-OUT
WARNING
FAILURE TO PROPERLY SET AND
CHECK PARKING BRAKE, AND
CHOCK WHEELS WHEN PARKING
AND DURING STORAGE, COULD AL-
LOW MOVEMENT OF THE
TRUCK/TRAILER RIG RESULTING IN
SERIOUS PERSONAL INJURY, DEATH,
OR DAMAGE TO PROPERTY IN ITS
PATH.
3-5.1 Assure landing gear is raised up all the
way.
3-5.2 Attach safety chains from the trailer to
the towing vehicle.
3-5.3 Check your maintenance schedule and
be sure everything is up-to-date.
3-5.4 Set parking brake. If brakes are not
properly set, the truck/trailer may roll when
removing wheel chocks. Carefully remove all
wheel chocks.
3-6 TOWING THE TRAILER
DANGER
ALWAYS CHECK BEHIND AND UNDER
THE TRUCK AND TRAILER FOR PER-
SONS OR OBJECTS BEFORE MOVING.
FAILURE TO CHECK CAN LEAD TO SE-
RIOUS PERSONAL INJURY OR DEATH
TO OTHERS, OR DAMAGE TO PROP-
ERTY.
3-6.1 Driving the towing vehicle with the trailer
coupled behind requires constant attention to
the overall length of the combination. Turn-
ing, passing, acceleration, braking, stopping,
and back-up require special attention to the
“hinged-in-the-middle” configuration of the
trailer. When executing steep grades or turn-
ing tight curves, the trailer must not be al-
lowed to push the towing vehicle, or jackknif-
ing the trailer with the towing vehicle may re-
sult. Application of the trailer brakes to keep
the trailer in tow will help prevent this push-
ing. Braking should begin before descending a
hill or attempting a curve, to assure control.
3-6.2 Make a moving test of the trailer brakes
at low, and medium speeds before traveling
at highway speed.
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 re-
main off unless a fault occurs or the
keyswitch is turned off, then on again.
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.
b. If the warning lamp does not go off, a fault
exists in the trailer ABS. If a fault exists, serv-
ice using the anti-lock brake system section
or the troubleshooting section of this manual.
3-6.3 Monitor the air pressure gauge on the
dash of the towing vehicle. Pressure should
not fall below 105 psi at any time.
3-4

3-6.4 The trailer wheels track to the inside of
the towing vehicle during turns. Thus, turning
corners requires a wide swing to prevent
“curb hopping”, and to allow the trailer to
clear any obstacle on the inside of the cor-
ner.
3-6.5 To stop, use a gradual and smooth appli-
cation of brakes.
3-6.6 Backing should be done with care. Tail
overhang, trailer length, and allowable space
must be taken into consideration.
3-6.7 The load on the trailer should be posi-
tioned so a minimum of 8% of the total
weight and a maximum of 30% of the total
weight is on the hitch.
3-7 PARKING THE TRAILER
3-7.1 Position truck/trailer rig on a level, solid
surface.
3-7.2 Set the PARKING BRAKE,not the
trailer hand brake, and check for proper brake
holding.
3-7.3 Chock wheels of trailer.
3-7.4 Check for any air leaks in lines, relay
valve, brake air chamber, or any other air
system component.
3-8 UNCOUPLING TOWING VEHICLE FROM TRAILER
3-8.1 Park the trailer according to instructions
in Section 3-7.
3-8.2 Disconnect emergency and service air
lines.
3-8.3 Disconnect the electrical cable and store
so end is not on the ground.
3-8.4 Disconnect safety chains from the tow-
ing vehicle.
3-8.5 Lower the landing gear to the ground.
Tilt trailer bed up so next landing gear pin
hole is available. Install and lock landing
gear pins. Unlock pintle hitch. Tilt trailer bed
down until pintle hitch eye lifts off pintle
hook.
3-8.6 Shut off towing vehicle hydraulic supply,
disconnect hydraulic hoses.
3-8.7 Verify that all service lines and safety
chains are disconnected and trailer wheels
are chocked.
3-8.8 Pull towing vehicle away from the trailer.
3-5

3-9 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. MAKE CERTAIN THE WINCH CABLE
SPOOL CLUTCH IS SET TO ENGAGE
AND CLUTCH IS FULLY ENGAGE BE-
FORE LOAD TENSION IS APPLIED TO
WINCH CABLE. NEVER ATTEMPT TO
DISENGAGE THE WINCH CABLE
SPOOL WHEN THE CABLE IS UNDER
TENSION. LOSS OF LOAD CONTROL,
PROPERTY DAMAGE, INJURY OR
DEATH CAN RESULT.
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.
3-9.1 The 12,000# WINCH CLUTCH HAN-
DLE (See Figure 3-2) is on the curbside of
the winch assembly. The 12,000 pound
winch clutch handle has two positions that
engage or disengage the winch spool:
DISENGAGE In this position, the winch is disen-
gaged. This allows the spool to
“free-wheel”. This is only used
when there is no load on the
winch cable. This feature allows
the cable to be pulled out fairly fast
and does not require operating the
hydraulic system.
ENGAGE In this position, the winch is en-
gaged. Cable may be “power”
spooled on or off the winch spool.
The winch is now controlled by the
Winch Hydraulic Lever.
CAUTION
A MINIMUM OF 5 WRAPS OF CABLE
MUST BE LEFT ON THE WINCH DRUM.
3-9.2 The HYDRAULIC WINCH CONTROL
LEVER is the center lever (See Figure 3-3).
It has three positions:
UP In this position, the winch reels the
winch cable in.
CENTER This is the neutral position. This po-
sition has some holding power, but
cannot be relied upon to hold a load
during transport.
DOWN In this position, the winch reels the
winch cable out.
3-6

3-10 AXLE CONTROL LEVER
The AXLE CONTROL LEVER (See Figure
3-3) is located on the front, lower deck of the driv-
er’s side frame member. It is the rear lever with
three positions:
UP In this position, the undercarriage
slides forward for loading.
CENTER This is neutral position.
DOWN In this position, the undercarriage
slides to the rear. The undercarriage
must be in the rear-most position for
transport.
3-11 TRAILER TILT LEVER
The TRAILER TILT LEVER (See Figure 3-3)
is located on the front lower deck of the driver’s
side frame member. It is the front lever with three
positions:
UP In this position, the front of the trailer
raises.
CENTER This is neutral position.
DOWN In this position, the front of the trailer
lowers.
3-7
Figure 3-2 Winch Clutch Handle Figure 3-3 Hydraulic Controls

3-12 LOADING THE TRAILER
3-12.1 Practice all standard industrial safety
standards (See Figure 3-4). Do not load any
payload that will overload any component of
the trailer or cause an unsafe condition.
3-12.2 Proper operation requires that the un-
dercarriage be pulled fully forward to create
lowest load angle.
3-12.3 Park the tractor/trailer in a straight line
on level even surface. Set the tractor brakes
and release the trailer brakes (See Figure
3-4).
3-12.4 Start operation of hydraulic power sys-
tem. If the hydraulic engine package is in-
stalled start and warm up engine following
engine operating instructions in Section
3-14. (Read engine operator’s manual.)
3-12.5 Alternate between moving the undercar-
riage forward (out of pockets) and tilting the
front of the bed up until the undercarriage is
fully forward and the approach plate is on the
ground. The weight of the trailer bed should
rest partly on approach plate and partly on
undercarriage. The object is to have the ap-
proach plate resting on the ground whenever
the center of gravity of the trailer and load is
behind the rear axle of trailer. In loading po-
sition, the approach plate should be resting
on the ground and the undercarriage fully
forward.
CAUTION
DO NOT ALLOW THE BACK TRAILER
AXLE TO LEAVE THE GROUND. THIS
CAN RESULT IN DAMAGE TO THE
TRAILER.
WARNING
IN LOADING OR UNLOADING POSI-
TION, THE APPROACH PLATE
SHOULD BE RESTING ON THE
GROUND.
WARNING
ALWAYS USE LOW LOAD ANGLE TO
LOAD AND UNLOAD POWERED
PRODUCTS.
3-12.6 Winch or drive the load onto the trailer.
Insure that the load is steering straight up
onto the semitrailer and does not maneuver
off the side of the trailer. Continue until load
center of gravity is just ahead of the axles, if
possible. The load should never place more
weight on the kingpin than on the rear axles
during loading and unloading.
CAUTION
MAXIMUM CONCENTRATED LOAD IN
A 10 FT. AREA IS 30,000 LBS.
WARNING
1. THE TRAILER MUST BE COUPLED
TO A TRACTOR AND THE LANDING
GEAR RAISED OFF THE GROUND BE-
FORE OPERATING.
2. DO NOT EXCEED THE GROSS AXLE
WEIGHT RATINGS FOR ANY AXLE ON
YOUR VEHICLE. THE COMBINED
WEIGHT OF THE TRAILER AND
CARGO MUST NOT EXCEED THE
GROSS VEHICLE WEIGHT RATING
(GVWR) OF THE TRAILER.
3-8