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SECTION 1 - SAFETY PRECAUTIONS

1-2

– Triple-L-Trailer –

3121224

Anticipate the trailer “swaying.” Swaying is the trailer reac-
tion to the air pressure wave caused by passing trucks
and busses. Continued pulling of the trailer provides a sta-
bilizing force to correct swaying. Do not apply the brakes
to correct trailer swaying.

Check rear view mirrors frequently to observe the trailer
and traffic.

Use lower gear when driving down steep or long grades.
Use the engine and transmission as a brake. Do not ride
the brakes, as they can overheat and become ineffective.

Be aware of your trailer height, especially when approach-
ing roofed areas and when around trees.

Hitting a bump or depression in the road surface or run-
ning off the shoulder of the road, and then returning to the
road surface, can adversely affect the stability of the trailer
or towing vehicle.

Rounding a corner or curve at excessive speed can
adversely affect the stability of the trailer or towing vehicle.

Trailer Improperly Coupled to the Hitch

It is critical that the trailer be securely coupled to the hitch,
and that the safety chains are correctly attached. Uncou-
pling could result in death or serious injury.

DO NOT MOVE THE TRAILER UNTIL THE COUPLER IS SECURED
AND LOCKED TO HITCH, THE SAFETY CHAINS ARE SECURED
TO THE TOW VEHICLE AND THE TRAILER JACK(S) ARE FULLY
RETRACTED.

DO NOT TOW THE TRAILER ON THE ROAD UNTIL THE TIRES
AND WHEELS ARE CHECKED, THE TRAILER BRAKES ARE
CHECKED, THE BREAKAWAY CABLE IS CONNECTED TO THE
TOW VEHICLE, THE LOAD IS SECURED TO THE TRAILER AND
THE TRAILER LIGHTS ARE CONNECTED AND CHECKED.

Incorrect Use of Safety Chains

If your trailer comes loose from the hitch for any reason,
safety chains are provided so that control of the trailer can
still be maintained. The chains originally supplied with the
trailer are of proper size. Be sure the chains are not
allowed to drag while towing. If links become worn,
replace with proper size chain. Always check that the
chains are attached to the tow vehicle before towing. 

FASTEN CHAINS ONLY TO FRAME OF TOW VEHICLE. DO NOT
FASTEN CHAINS TO ANY PART OF THE HITCH UNLESS THE
HITCH HAS HOLES OR LOOPS SPECIFICALLY FOR THAT PUR-
POSE. CROSS CHAINS UNDERNEATH HITCH AND COUPLER
WITH ENOUGH SLACK TO PERMIT TURNING AND TO HOLD
TONGUE UP, IF THE TRAILER COMES LOOSE.

Incorrect Use of Breakaway Brake

When equipped with brakes, a breakaway brake system
applies the brakes on your trailer if your trailer comes
loose from the hitch for any reason. The safety chains and
breakaway brake system must be in good condition and
properly rigged to be effective.

THE BREAKAWAY CABLE MUST BE CONNECTED TO THE TOW
VEHICLE; AND NOT TO ANY PART OF THE HITCH. BEFORE TOW-
ING THE TRAILER, TEST THE FUNCTION OF THE BREAKAWAY
BRAKE SYSTEM. IF THE BREAKAWAY BRAKE SYSTEM IS NOT
WORKING, DO NOT TOW THE TRAILER; HAVE IT SERVICED OR
REPAIRED.

Mismatch of Trailer and Hitch

The use of a Weight Carrying Hitch instead of a Weight
Distributing Hitch can place too much tongue load on the
rear end of the towing vehicle. This combined loading can
cause the rear end of the towing vehicle to sag downward
and the forward end to be raised upward, causing steer-
ing problems and towing vehicle sway at other than slow
speeds. 

BE SURE YOUR HITCH AND TOW VEHICLE ARE RATED FOR THE
GROSS VEHICLE WEIGHT RATING OF YOUR TRAILER.

Unsafe Tires, Lug Nuts or Wheels

It is essential to visually inspect the trailer tires and wheels
before each tow.

If a tire has a bald spot, bulge, cuts, is showing any cords,
or is cracked, replace the tire before towing. If a tire has
uneven tread wear, take the trailer to a dealer or service
center for diagnosis. Uneven tread wear can be caused by
tire imbalance, axle misalignment or incorrect inflation.

Tires with too little tread will not provide adequate tracking
on wet roadways and could result in loss of control, lead-
ing to death or serious injury.

Improper tire pressure may cause an unstable trailer and
could result in a tire blowout and loss of control. Tires
must be inspected and inflated in accordance with section
4 of this manual.

TRAILER TIRES WILL BE INFLATED TO HIGHER PRESSURES
THAN PASSENGER VEHICLE TIRES. UNDER-INFLATED FRONT
TIRES ON THE TOWING VEHICLE COULD CAUSE STEERING
PROBLEMS. LOW PRESSURE IN THE REAR TIRES OF THE TOW-
ING VEHICLE COULD CAUSE THE VEHICLE TO SWAY.

Summary of Contents for Triple-L 1012

Page 1: ...Triple L Trailers 3121224 December 21 2010 Operation Safety and Service Manual ANSI ...

Page 2: ......

Page 3: ...t is made to operate the trailer Because the manufacturer has no direct control over trailer operation and application proper safety practices are the responsibility of the owners users operators lessors and lessees All instructions in this manual are based upon the use of the trailer under proper operating conditions with no deviations from the original design Any alteration or modification of th...

Page 4: ...D IS USED IN THE MOST EXTREME CASES WHEN INSTALLED ON THE TRAILER THIS SIGNAL WORD WILL HAVE A RED BACKGROUND AS PART OF A DECAL INDICATES A POTENTIALITY HAZARDOUS SITUATION WHICH IF NOT AVOIDED COULD RESULT IN SERIOUS INJURY OR DEATH WHEN INSTALLED ON THE TRAILER THIS SIGNAL WORD WILL HAVE AN ORANGE BACKGROUND AS PART OF A DECAL INDICATES A POTENTIALITY HAZARDOUS SITUATION WHICH IF NOT AVOIDED MA...

Page 5: ...INC TO ENSURE THAT THE CURRENT OWNER RECORDS ARE UPDATED AND ACCURATE JLG INDUSTRIES INC MUST BE NOTIFIED IMMEDIATELY IN ALL INSTANCES WHERE JLG PRODUCTS HAVE BEEN INVOLVED IN AN ACCIDENT INVOLVING BODILY INJURY OR DEATH OF PERSONNEL OR WHEN SUBSTANTIAL DAMAGE HAS OCCURRED TO PERSONAL PROPERTY OR THE JLG PRODUCT FOR Accident Reporting Product Safety Publications Current Owner Updates Questions Reg...

Page 6: ...FOREWORD d Triple L Trailer 3121224 TRAILER IDENTIFICATION TRAILER NUMBER MODEL NUMBER SERIAL NUMBER VIN NUMBER 1 2 3 4 5 6 7 8 9 10 11 12 ...

Page 7: ...olely by Man ufacturer s then current warranty policies and proce dures 2 DISCLAIMER AS TO CONSEQUENTIAL OR SPE CIAL DAMAGES Under no circumstances shall Manufacturer be liable for any consequential or spe cial damages which any person firm corporation or other entity may suffer or claim to suffer or incur or claim to incur as a result of any defect in the product or in any correction or alteratio...

Page 8: ...ch 3 2004 Revised September 30 2004 Edited to 0010598 Rev 7 0010599 Rev 9 0010600 Rev 6 0010601Rev 9 0010602 Rev 10 Revised October 4 2004 Revised February 25 2005 Revised June 27 2005 Revised August 22 2005 Revised May 24 2006 Revised August 28 2006 Revised December 5 2007 Revised January 17 2008 Revised December 21 2010 ...

Page 9: ... and Uncoupling the Trailer 2 8 2 10 Loading the Trailer 2 11 2 11 Lift Tie Down Procedure 2 14 2 12 Towing Operations 2 14 2 13 Pre Tow Inspection 2 16 2 14 Breaking in a New Trailer 2 17 SECTION 3 ACCESSORIES 3 1 Accessories 3 1 3 2 Scissor Lift chocks If Equipped 3 3 SECTION 4 SERVICE AND MAINTENANCE 4 1 Introduction 4 1 4 2 Inspections Service Maintenance 4 1 4 3 Inspection and Service Instruc...

Page 10: ...Motor Pump Parts 4 6 4 5 Electric Brakes with Parking Brake Feature 4 8 4 6 Hydraulic Brakes 4 9 4 7 Trailer Connections 4 12 4 8 Trailer Wiring Diagram 4 13 4 9 Dual Quadra Spring Suspension 4 14 4 10 Flex Ride Suspension 4 14 4 11 Suspension Camber Setting Fixed 4 14 4 12 Tire Information 4 18 LIST OF TABLES TABLE NO TITLE PAGE NO 1 1 Decal Location Legend 1 7 2 1 Trailer Model Specifications 2 ...

Page 11: ...esponsibility of the trailer owner and operator to deter mine which regulations apply and to comply with these requirements 1 3 MAJOR HAZARDS Safe and proper usage of the trailer is essential to avoid accidents Unsafe use separation of trailer from tow vehi cle and loss of control of the trailer or trailer tow vehicle combination can result in death or serious injury Com mon causes for trailer acc...

Page 12: ... NOT FASTEN CHAINS TO ANY PART OF THE HITCH UNLESS THE HITCH HAS HOLES OR LOOPS SPECIFICALLY FOR THAT PUR POSE CROSS CHAINS UNDERNEATH HITCH AND COUPLER WITH ENOUGH SLACK TO PERMIT TURNING AND TO HOLD TONGUE UP IF THE TRAILER COMES LOOSE Incorrect Use of Breakaway Brake When equipped with brakes a breakaway brake system applies the brakes on your trailer if your trailer comes loose from the hitch ...

Page 13: ...Determine the combined weight of luggage and cargo being loaded on the vehicle That weight may not safely exceed the available cargo and luggage load capacity NOTE Refer to production options and accessory weight Table 2 2 for weights of various trailer options DO NOT LOAD A TRAILER SO THAT THE WEIGHT EXCEEDS THE TRAILER GROSS VEHICLE WEIGHT RATING GVWR OR GROSS AXLE WEIGHT RATING GAWR The Tire In...

Page 14: ...people containers of hazard ous substances or containers of flammable substances DO NOT TRANSPORT PEOPLE ON OR INSIDE THE TRAILER THE TRANSPORT OF PEOPLE PUTS THEIR LIVES AT RISK AND MAY BE ILLEGAL DO NOT TRANSPORT FLAMMABLE EXPLOSIVE POISONOUS OR OTHER DANGEROUS MATERIALS IN YOUR TRAILER EXCEPTIONS FUEL IN THE TANKS OF EQUIPMENT BEING HAULED FUEL STORED IN THE TANK OF AN ON BOARD GEN ERATOR Inope...

Page 15: ...TS BEFORE COUPLING THE TRAILER TO THE TOW VEHICLE BE SURE THE HITCH COMPONENTS ARE TIGHT BEFORE COUPLING THE TRAILER TO THE TOW VEHICLE Not Properly Maintaining the Trailer Structure Proper maintenance is essential for all trailer structural components to operate properly Structural components can consist of the trailer deck assembly deck latching mechanism suspension and axle components To ensure...

Page 16: ...SECTION 1 SAFETY PRECAUTIONS 1 6 Triple L Trailer 3121224 1 1 6 7 10 9 8 11 13 4 12 12 Figure 1 2 Decal Location ...

Page 17: ...2 ModelEC 14 Model248 ModelUT28 Model449 ModelUT49 Model4610 ModelUT4610 Model1012 Model1014 ModelUT912 ModelUT914 Model7910 Model7612 Model7614 Model7616 1705761 1705762 1705763 1705764 1705765 1705766 1705767 1705768 1705769 1705770 1705771 1705772 1705773 1705774 1705775 1705776 1705777 1705778 1705779 1705780 4 1705810 5 70319 6 70327 7 allexceptModel449 UT49 1707075 1707076 8 Model449 UT49onl...

Page 18: ...SECTION 1 SAFETY PRECAUTIONS 1 8 Triple L Trailer 3121224 NOTES ...

Page 19: ...7614 70x168 7000 Tandem Electric 1Axle Hydraulic 9950lbs 4513kg 7616 70x192 6500 Tandem Electric 1Axle Hydraulic 9700lbs 4400kg 1012 70x144 10 000 Tandem Electric 2Axles Hydraulic 13 102lbs 5943kg 1014 70x168 10 000 Tandem Electric 2Axles Hydraulic 13 342lbs 6052kg UT28 52x96 2000 Single Optional HandWinch 3790lbs 1719kg UT49 52x108 4500 Single Electric Hydraulic 6460lbs 2930kg UT410 70x120 4000 S...

Page 20: ... axle HYDRAULIC BRAKE dual axle ELECTRIC BRAKE dual axle SPARE TIRE TIRE MOUNT WINCH RAILS 12 IN RAILS 24 IN GATE 248 19lbs 50lbs 20lbs 45lbs 449 19lbs 60lbs 20lbs 45lbs 4610 19lbs 60lbs 20lbs 45lbs 7610 34lbs 145lbs 102lbs 60lbs 20lbs 45lbs 7612 34lbs 145lbs 102lbs 60lbs 20lbs 45lbs 7614 34lbs 145lbs 102lbs 60lbs 20lbs 45lbs 7616 34lbs 145lbs 102lbs 60lbs 20lbs 45lbs 1012 48lbs 60lbs 20lbs 45lbs ...

Page 21: ...SECTION 2 TRAILER OPERATION 3121224 Triple L Trailer 2 3 4 5 18 3 13 9 20 16 16 7 Shownwith cover open onthis side 6 2 8 10 15 14 21 12 12 Figure 2 1 Trailer Features ...

Page 22: ...ed 12 Bearing Channel This component is part of the trailer deck and rides on the deck bearing when the deck is being raised or lowered 13 Chassis This is the structural frame work of the trailer 14 Deck This is the surface where cargo is placed for transport It can be lowered for loading and raised for transport 15 Serial Number This is a 17 digit number also referred to as the Vehicle Identifica...

Page 23: ...d the necessary ball size are listed on the trailer tongue Do not change the coupler to a smaller size You must provide a hitch and ball for your tow vehi cle where the load rating of the hitch and ball is equal to or greater than that of your trailer The ball size must be the same as the coupler size If the hitch ball is too small too large is underrated is loose or is worn the trailer can come l...

Page 24: ...wn position Switch is mounted directly to the starter solenoid located under the deck control lever The switch is activated when the deck control lever is moved to the down position The switch has mounting adjustment to allow precise tim ing of the alarm NOTE The Alarm has a fixed decibel rating Testing System Alarm should sound immediately when moving deck con trol lever to down position If the a...

Page 25: ...r Height Adjustment Remove the bolts securing the couper to the mounting bracket Move the coupler up of down to desired height Secure with the bolts For the Pintle Hitch Coupler torque the two bolts to 225 ft lb 305 Nm For the Ball Couplers torque the four bolts to 150 ft lb 203 Nm Hitch Ball The coupler on the trailer connects to the ball attached to the hitch on the tow vehicle The coupler ball ...

Page 26: ...e sure the size and rating of hitch ball match the size and rating of the coupler Hitch balls and couplers are marked with their size and rating Wipe the hitch ball clean and inspect it visually and by feel for flat spots cracks and pits BEFORE EACH TOW INSPECT THE HITCH BALL FOR WEAR CORROSION AND CRACKS BEFORE COUPLING TRAILER REPLACE WORN OR DAMAGED HITCH BALL NOTE Rock the hitch ball in all di...

Page 27: ...ANY PART OF THE HITCH UNLESS THE HITCH HAS HOLES OR LOOPS SPECIFICALLY FOR THAT PURPOSE CROSS CHAINS UNDERNEATH HITCH AND COUPLER WITH ENOUGH SLACK TO PERMIT TURNING AND TO HOLD TONGUE UP IF THE TRAILER COMES LOOSE Attach and Test Electric Breakaway Brake System BEFORE TOWING CONNECT THE BREAKAWAY CABLE TO THE TOW VEHICLE AND NOT TO THE HITCH BALL OR SUPPORT TEST THE FUNCTION OF THE BREAKAWAY BRAK...

Page 28: ...YSTEM IF THE BREAKAWAY BRAKE SYSTEM IS NOT WORKING DO NOT TOW THE TRAILER HAVE IT SERVICED OR REPAIRED NOTE Do not tow the trailer with the breakaway brake sys tem ON because the brakes will overheat which can result in permanent brake failure Connect the Electrical Cables Connect the trailer lights to the tow vehicle s electrical sys tem using the electrical connectors Check all lights for proper...

Page 29: ...igh speeds If there is too much tongue weight the front wheels of the tow vehicle can be too lightly loaded and cause loss of steering control and traction as well if the front wheels are driving Tongue weight is necessary to insure that the trailer axle s do not exceed their Gross Axle Weight Rating GAWR For a ball hitch trailer the tongue weight should be between 10 and 15 of the total trailer w...

Page 30: ...LLEGAL The hydraulically lowered trailer deck is fitted with a travel latch that keeps the trailer in the driving up position After the trailer is loaded the cargo is secured with hold downs and the deck has been raised to the travel position be sure the travel latch has locked the trailer deck into place Couple the trailer securely to the tow vehicle before attempting to unlock the deck and load ...

Page 31: ... THAT THE TRAVEL LATCH HAS PROPERLY LATCHED INTO PLACE TIE DOWN ALL LOADS WITH PROPER SIZED FASTENERS ROPES STRAPS ETC IF YOUR TRAILER IS ENCLOSED OR EQUIPPED WITH AN OPTIONAL TAILGATE THE DOORS OR TAIL GATE MUST BE SECURELY LATCHED BEFORE TOWING THE TRAILER ORIENT SO THAT TENSION IS APPLIED WHEN HANDLE IS MOVED TOWARD THE TRAILER CENTERLINE TRAILER REAR TRAILER FRONT Figure 2 4 Lift Tie Down ...

Page 32: ...ontrol and for all the damage that is caused if you lose control of your vehicle and trailer When learning to drive with a trailer in tow find an open area with little or no traffic to practice trailering Before you start towing the trailer you must follow all of the instruc tions for inspection testing loading and coupling Also adjust the mirrors so you can see the trailer as well as the area to ...

Page 33: ...eed Never drive faster than 55 m p h Allow plenty of room for passing A rule of thumb is that the passing distance with a trailer is 4 times the pass ing distance without a trailer Shift your automatic transmission into a lower gear for city driving Use lower gears for climbing and descending grades Do not ride the brakes while descending grades they may get so hot that they stop working Then you ...

Page 34: ...on 7 Safety Chains Check that the chains are properly rigged to tow vehicle not to detachable hitch com ponents 8 Emergency Breakaway Cables Check that the cables are properly rigged to tow vehicle not to detachable hitch components 9 Lights and Signals Check clearance lights tail lights stop lights turn signals and backup lights for proper operation Replace or repair inoperative lights 10 Trailer...

Page 35: ... of use and each 3 000 miles thereafter The brakes are adjusted manually Refer to section 4 for manual brake adjustment Synchronizing the Brake Systems Trailer brakes are designed to work in synchronization with the brakes on the tow vehicle Do not use either brake system alone to stop the combined tow vehicle and trailer When the tow vehicle and trailer braking systems are syn chronized both brak...

Page 36: ...SECTION 2 TRAILER OPERATION 2 18 Triple L Trailer 3121224 NOTES ...

Page 37: ...r 1 5 Amp Fully automatic turns on and off as needed LED indicators for showing power on and charged To be used as trickle charge only Trailer Battery Charging Module Disconnects trailer battery from vehicle s charge wire when not charging engine is not running preventing two dead batteries Power 9 to 15 V DC from vehicle s battery Current Consumption Sleep mode or 2mA Charge mode or 120mA Thresho...

Page 38: ...n the spare tire bracket through the center hole of wheel 3 Adjust the wheel as close to center over the threaded stud located on the spare tire bracket 4 Place the plate in front of the wheel and over the threaded stud 5 Place the washer onto the threaded stud in front of the plate 6 Thread the nut onto the threaded stud and using a 3 4 socket tighten the nut AFTER MOUNTING IS COMPLETE ENSURE THA...

Page 39: ...rder to achieve the proper tongue weight The chocks are mounted to the trailer floor and provide a means of positioning the scissor lift in the left right and front rear directions THE SCISSOR LIFT CHOCKS ARE INTENDED FOR USE ONLY FOR SPECIFIED SCISSOR LIFTS THAT ARE MANUFACTURED BY JLG INDUSTRIES INC NOTE When unloading the trailer deck must be fully low ered onto the ground The means of securing...

Page 40: ... chassis of the scissor lift centered within the trailer Once both front wheels of the scissor lift are firmly positioned against the chock the front and rear of the scissor lift must be prop erly secured to the designated tie down points on the trailer deck using suitable tie down equipment Refer to Figure 3 2 Before moving the trailer ensure that the trailer deck is fully raised and the travel l...

Page 41: ... 12 000 Miles or 1 year WheelLugs1 Tightentospecifiedtorquerating X X CouplerBall Checkforunusualwear X SafetyChains Checkforunusualwearinlinks X Brakes2 Checkgeneraloperationandproperadjustment X X BrakeFluid3 Checkreservoir X Breakaway Checkcableandallcomponents X Suspension Checkforworncomponentsorbrokensprings X Welds Checkweldsforcracksorseparations X Floor hinges doorand dividers Washbothsid...

Page 42: ...on and maintenance activ ities you must jack up the trailer Figure 4 1 Jacking Points indicates the general areas where jacks and jack stands may be applied When jacking and using jack stands place them so as to clear wiring brake lines and suspension parts springs torsion bars etc Place jacks and jack stands inside of the perimeter strip on the supporting structure to which the axles are attached...

Page 43: ...e Huck bolts are not user serviceable If you detect a loose huck bolt fastener do not tow the trailer Call your dealer for instructions INSPECT FOR BROKEN OR DAMAGED FASTENERS WELDS OR OTHER DAMAGED PARTS AT LEAST ONCE A YEAR AND HAVE ALL DAMAGED PARTS REPAIRED OR REPLACED Welds All welds can crack or fail when subjected to heavy loads or movement of cargo that was not properly tied to pre vent mo...

Page 44: ...407 Nm Torque Nut 5 to 180 200 ft lb 244 407 Nm 1 15 15 14 6 7 4 10 11 12 3 8 13 9 15 14 15 2 5 1 Cylinder Barrel 2 Cylinder Rod 3 Cylinder Head 4 Piston 5 Nut Grade 8 6 Breather 7 Seal 8 Seal 9 Rod Wiper 10 O Ring 11 O Ting 12 Back up Ring 13 Back up Ring 14 Clevis Pin 15 Cotter Pin Figure 4 2 Hydraulic Cylinder ...

Page 45: ...nk Level 1 below fill cap when trailer deck is low ered Fluid Type DEXTRON II ATF automatic transmission fluid BATTERY TO CYLINDER PORT ROD END UP DOWN Figure 4 3 Hydraulic Schematic Table 4 2 Motor Pump Amperage Draw No Load in Trailer PSI Pump Motor Amperage Draw Pump GPM Flow Rate AtStartup 100Amps 3 5 GPM 1000PSI 160Amps 2GPM 1900to 2000PSIor at Relief 225Amps 1 25GPM NOTE You should get appro...

Page 46: ...ew clockwise to increase pressure b Turn screw counter clockwise to decrease pressure NOTE Outlet Port Pressure flow must be blocked to make relief valve operate while adjusting 3 Tighten Jam Nut RETURN TUBE SUCTION TUBE DRAIN HOLE REF SWITCH FILTER BRACKET MOTOR RESERVOIR ADJUSTABLE RELIEF VALVE Figure 4 4 12 Volt Motor Pump Parts ...

Page 47: ...e above procedure on all brakes 7 Lower the trailer to the ground ELECTRIC BRAKES OPTIONAL The electric brakes on a trailer are similar to the drum brakes on an automobile The basic difference is that the automotive brakes are actuated by hydraulic pressure while electric trailer brakes are actuated by an electro magnet With all of the brake components connected into the system the brake will oper...

Page 48: ...nchronized so that brak ing is properly distributed to the tow vehicle brakes and the trailer brakes For proper operation and synchroniza tion read and follow the axle brake and the brake control ler manufacturers instructions 2 3 1 4 5 6 7 8 9 10 11 12 13 14 8 15 16 17 18 19 20 21 22 23 1 Pivot Pin Locknut 2 Washer 3 Parking Brake Lever 4 Anchor Post Locknut 5 Anchor Post and Bushing Sub Assembly...

Page 49: ...if required Shoes and Linings A simple visual inspection of your brake linings will tell if they are usable Replacement is necessary if the lining is worn to within 1 16 or less contaminated with grease or oil or abnormally scored or gouged It is important to replace both shoes on each brake and both brakes of the same axle This is necessary to retain the balance of your brakes 2 3 1 4 10 7 5 6 9 ...

Page 50: ...l only a very slight brake shoe drag is felt Wheel Cylinders Inspect for leaks and smooth opera tion Clean with brake cleaner and flush with fresh brake fluid Hone or replace as necessary Brake Lines Check for cracks kinks or blockage Flush with fresh brake fluid Bleed system to remove all air Replace as necessary Shoes and linings Inspect visually Replace if the lin ing is worn to within 1 16 or ...

Page 51: ... determine the proper action to prevent possible failure of the ball and coupler system All bent or broken coupler parts must be replaced before towing the trailer The coupler must operate properly and automatically snap into the latched position Oil the pivot points sliding surfaces and spring ends with SAE 30W motor oil Keep the ball pocket and latch mechanism clean Dirt or con tamination can pr...

Page 52: ...MMON GROUND TAIL RUNNING LIGHTS LEFT STOP TURN RIGHT STOP TURN WHITE GROUND TO FRAME BROWN TAIL RUNNING LIGHTS YELLOW LEFT STOP TURN GREEN RIGHT STOP TURN GD COMMON GROUND S 12V B 40A MAX OPTIONAL TM TAIL RUNNING LIGHTS RT RIGHT STOP TURN LT LEFT STOP TURN A ELECTRIC BRAKES GD WHITE COMMON GROUND S TRAILER BATTERY CHARGING MODULE OPTIONAL TM BROWN TAIL RUNNING LIGHTS RT GREEN RIGHT STOP TURN LT YE...

Page 53: ...trailer brakes if the trailer uncouples from the tow vehicle activat ing the breakaway brake switch The battery may be kept charged either by the tow vehicle or by an available trickle charger Be sure to check maintain and replace the bat tery according to the battery manufacturers instructions Disconnect the accessory battery when you do not plan to be using the trailer for an extended period suc...

Page 54: ...que to specified ft lbs Refer to Table 4 5 Wheel Torque Chart 4 10 SUSPENSION There are two types of suspension used on various trailer models Slight wheel alignment can be made with the 8 bolts loos ened on the springs 1 Lower deck and jack wheels off ground 2 From the inside loosen the 8 bolts 3 Do not remove wheels when aligning Model 248 Torsion Model 4610 Spring Model 7610 Spring Model 7612 S...

Page 55: ...t slowly lift the chassis up to allow the bearings to lift out of the bearing channels If you do not have extended forks to reach the full width of the trailer chain the far side of the trailer to the fork lift mask so as to hold the chassis level while lifting Use extreme caution when lifting to ensure everyone s safety 6 Once the chassis is lifted above the channel all bear ings will be easily a...

Page 56: ...topping traction and load carrying capability of your vehicle Under inflated tires and overloaded vehicles are a major cause of tire fail ure Therefore to avoid flat tires and other types of tire fail ure you should maintain proper tire pressure observe tire and vehicle load limits avoid road hazards and regularly inspect your tires Checking Tire Pressure It is important to check your vehicle s ti...

Page 57: ...he tread can be repaired if they are not too large but punctures to the sidewall must be repaired Tires must be removed from the rim to be properly inspected before being plugged and patched Tire Replacement A replacement tire must be the same size ply rating and load range as originally installed on the trailer Please refer to the VIN Label Tire Information Label for correct tire information Tire...

Page 58: ...el Diameter This two digit number is the wheel or rim diameter in inches If you change your wheel size you will have to purchase new tires to match the new wheel diameter 6 Maximum Load Rating This number indicates the maximum load in kilograms and pounds that can be carried by the tire 7 Maximum Permissible Inflation Pressure This number is the greatest amount of air pressure that shall ever be p...

Page 59: ...h wheel removal Check and torque after the first 10 miles 25 miles and again at 50 miles Check periodically thereafter Lug nuts may loosen right after a wheel is mounted to a hub When driving on a remounted wheel check to see if the lug nuts are tight after the first 10 25 and 50 miles of driving and visually inspect before each tow thereafter CHECK LUG NUTS FOR TIGHTNESS ON A NEW TRAILER OR WHEN ...

Page 60: ...pots on rollers bro ken roller cages rust or pitting Always replace bear ings and cups in sets The inner and outer bearings are to be replaced at the same time 3 Replace seals that have nicks tears or wear 4 Lubricate the bearings with a high quality EP 2 auto motive wheel bearing grease Every time the wheel hub is removed and the bearings are reassembled follow the steps below to check the wheel ...

Page 61: ...PROPOSITION65 BATTERYWARNING Battery posts terminals and related accessories contain lead and lead compounds chemical known to the State of Califormia to cause cancer and reproductive harm WASHHANDS AFTERHANDLING ...

Page 62: ...utschland GmbH Max Planck Str 21 D 27721 Ritterhude Ihlpohl Germany 49 0 421 69 350 20 49 0 421 69 350 45 JLG Equipment Services Ltd Rm 1107 Landmark North 39 Lung Sum Avenue Sheung Shui N T Hong Kong 852 2639 5783 852 2639 5797 JLG Industries Italia s r l Via Po 22 20010 Pregnana Milanese MI Italy 39 029 359 5210 39 029 359 5845 JLG Polska UI Krolewska 00 060 Warsawa Poland 48 0 914 320 245 48 0 ...

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