USER`S MANUAL - GSI Highway Products
Contents
1. 14 Operation ly OO 22222 SECURE SES 14 MAINTENANCE GUIDELINE 23 evade sweden seen ceeded e e Yann en 16 REPAIR GUIDELINES duct heat ies an hes s EO eH E e OE E ES 17 lmpact by Errant Vellele eain ot RUP OU ERREUR PU sees 17 x se auos CR i eis AGE ERREUR a 19 Damage Assessment and Repair Parts Packages 19 No Apparent Damage to Trailer 20 Axle Assembly Not Detached 20 Axle Assembly Detached but No Damage to Trailer A Frame 21 Bursting Reaches Trailer A Frame 22 Technical bcd E ae e X99 ee Gea aoe ae de au aee 22 TTMA 100 DESIGN AND MAJOR COMPONENTS GENERAL A schematic of the TTMA 100 is shown in Figure 1 The major components of the TTMA 100 as shown Figure 1 are as follows Component A AT TOME Description Impact Head Bursting Mandrel First Energy Absorbing Tube Trailer Frame Axle Assembly Plastic Guide Plates End Caps Hitch Assembly Spacer Jack Assembly Table presents the general specifications for the Trailer TMA including Overall dimensions 1 length width and maximum height to the top of the impact head and the top of the light bar e Weight of the trailer with no optional equipment and the tongue weight Note the small tong2. Inspect the breakaway axle assembly Part E for damage Replace axle if visibly bent If the axle is not damaged but the push rods are bent straighten out the push rods Make sure that the push rods are attached to the axle properly If the axle 1s not damaged but the fenders are severely bent replace only the fenders Inspect trailer lights for damage If the lighting system sustains only minor damage such as a broken lens or light bulb repair the damaged items which may be readily purchased from automotive supplies stores Make sure that all the lights are working properly prior to returning the trailer to service If the lighting system is severely damaged and no longer functional replace the entire lighting system Inspect impact head Part A and mandrels Parts B for damage For this severity of impact it 1 unusual for either the impact head or the mandrels to be damaged to the extent that they are no longer usable and needs to be replaced Nonetheless check to make sure that the impact head and mandrels are not severely bent and are properly aligned with the energy absorbing tubes Inspect lunette ring and pintle hook for damage For this severity of impact it 1s unusual for either the lunette ring or the pintle hook to be damaged to the extent that they are no longer usable and needs to be replaced Nonetheless check to make sure that the lunette ring and the pintle hook are not severely bent and can be hooked up properly
3. Amber Clearance Light 238 5 Amber Side Marker Light 24 Figure 2 TTMA 100 Wiring and Light Layout WIRING INSTRUCTIONS As mentioned previously the only item that may require attention of the user 15 the wiring of the trailer plug for connection to the tow vehicle There are two distinctly different wire plugs that are not compatible one is the RV plug and the other is the heavy duty truck plug It is necessary to first determine which type of plug is used with the tow vehicle 1 an RV plug or a heavy duty truck plug The shapes of the two plug types are easier distinguishable as shown in the following photographs Also the RV plug uses blades and the truck plug uses round pins Note that the wiring scheme for the two plug types are totally different details of which are shown in the following tables RV Plug Heavy Duty Truck Plug Standard Wiring For RV Plugs With Separate Brake Wire Plug Labels Function Trailer Wire Color Common Ground J 1 Brake light Rd J 2 4 Bwe Tail Marker lights Brown 3 Gren Right Turm Green center Standard Wiring For Heavy Duty Truck Plugs Plug Labels Function Trailer Wire Color Number 12V Powersupply Note that the above wiring patterns represent standard wiring for the tow vehicle The above pattern may need to be adjusted if the tow vehicle does not use standard wiring INSTALLATION INSTRUCTI
4. tow vehicle 15 moving at slow speed such as 10 to 20 mph 16 to 32 km h In a stationery operation the shadow vehicle 1s stopped with the parking brakes on Use Table 3 for moving operations and Table 4 for stationary operations 2 Select the weight that best approximates the actual weight of the tow vehicle 10 000 15 000 24 000 40 000 60 000 or 80 000 Ib 4 535 6 800 10 900 18 000 27 000 or 36 000 kg Note that the weight of the support truck should include the weights of items to be carried on the truck during the operation and the weight of the TTMA 100 3 Select the range of prevailing speed of the traffic at the work zone 45 55 or 65 mph 72 88 or 104 km h 10 4 Select weight of impact vehicle to be contained 10 000 15 000 or 24 000 Ib 4 536 6 800 or 10 900 kg 5 Select from the appropriate table the expected roll ahead distance For example If you are operating a tow vehicle with a gross weight of 15 000 Ibs 6 800 kg as a stopped shadow vehicle in an area where the operating traffic speed 1s 45 mph 72 km h and there are few if any large trucks in the mix of traffic You would start with Table 4 select the appropriate values from above and determine that the maximum roll ahead distance would be 11 3 4m This is the distance from the front of the tow vehicle to the work area that should be provided 11 Table 3 Calculated Roll Ahead Distances for Moving Operation Tow Traffic V
5. 0556 Email technical safetytrailers com Web Site http www safetytrailers com Mail Safety Trailers Inc 9 Cotswold Lane San Antonio TX 78257 ii TABLE OF CONTENTS Page POT OID Dae ake EID LL CUSTOMER SERVICE CONTACTS ii TTMA 100 DESIGN AND MAJOR COMPONENTS 1 8 ceti xe ne oe ee Ee EE 1 Figure 1 Schematic and Parts Layout of 100 2 Table 1 General Specifications 3 Table 2 Trailer Component and Parts 151 4 Figure 2 TTMA 100 Wiring and Light Layout 5 Wiene cea Satan oa 6 INSTALLATION 8 21000102 46549 45 Aen s px ace Abos vov acepta tins tes 9 Recommended Tool List eive RUE RET ERIS ME xU pe 9 Bolt Forque Specifications rac NI S ee T a 9 Pinte ERU REED e doa RO CREE HERR 9 OPERATION GUIDELINE S sspe 24 53 058m iced ete Sed Reds 10 Minimum Weight of Tow 1 10 Tow Vehicle Roll Ahead 10 Table 3 Calculated Roll Ahead Distances for Shadow Vehicles 12 Table 4 Calculated Roll Ahead Distances for Barrier Vehicles 13 Attachment of TTMA 100 to Tow
6. ONS SHIPPING PACKAGE This manual is intended for the operation and maintenance of the TTMA 100 If you ordered and received the unit in a partially assembled state please refer to the accompanying Assembly Manual for detailed instructions If you have any questions in this regard please contact STI Customer Services prior to utilizing the trailer RECOMMENDED TOOL LIST The following is the recommended tool list for assembling the TTMA 100 Socket wrenches 2 34 13 16 15 16 Open end wrenches 34 13 16 15 16 Pneumatic wrench Drift pin Wire crimper Round and flat metal files Electric drill and bits 4 ft level Measuring tape Optional e Fork lift crane for parts manipulation Note that some parts are very heavy and care should be taken in assembling and disassembling the unit BOLT TORQUE SPECIFICATIONS All bolts should be tightened to the specified torque prior to use of the Trailer TMA The following are the recommended torques to the bolts according to the bolt size Bolt Size in 5 16 1 2 9 16 5 8 Torque ft lb 15 60 85 115 Torque N m 20 81 PINTLE HOOK The pintle hook should have a minimum capacity rating of 8 tons 7 250 kilograms Due to the wide variations in the frame structures of different tow vehicles there is not a single standard means of mounting the pintle hook assembly to the frame of the tow vehicle The major considerations in mounting of the pintle h
7. Order the appropriate parts in accordance with the damage sustained by the trailer 21 Items in Package LSRC 2 each Parts C a b c d g and h T100 AA Axle Assembly Part E TIOOEF Fenders 2 T100 LB Basic lighting system Bursting Reaches Trailer A Frame For this high severity of impact it is not advisable to repair the trailer It 1s recommended that the user should consider purchasing a new trailer First the cost for the replacement parts would approach that of a new trailer Second extensive assembly would be required which may pose some problems for someone not familiar with the details of the trailer Technical Assistance If you have any questions regarding these inspections and assessment of damage to the trailer or required repair parts please contact STI Technical Help by telephone at 210 464 3465 e mail at technicalWsafetytrailers com or conventional mail at 9 Cotswold Lane San Antonio TX 78257 In order for STI Technical Assistance to better provide assessment of the trailer or required repair parts 1 would be most helpful if you can send photographs of the damaged trailer both showing the overall damages and damages to the specific areas or parts in question 22
8. Safety Trailers Inc Flexible Affordable Safety Hardware TTMA 100 User s Manual pn ee Msn 4 4e dan ah e 5_ Safety Trailers Inc 9 Cotswold Lane San Antonio TX 78257 210 464 3465 www satetytrailers com September 2007 FOREWORD Thank you for your purchase of the Trailer Truck Mounted Attenuator Model 100 from safety Trailers Inc herein referred to as TTMA 100 The TTMA 100 is a Test Level 3 TL 3 crash cushion designed for use with a support truck 1n both stationary and moving work zones We are committed to providing our customers with highway safety products that have the best performance and value for your money as well as the highest level of customer service The TTMA 100 is one of the most innovative TMA s in market offering a higher level of performance with heavy tow vehicles and requiring no modification of the tow vehicle It has successfully passed all required and optional crash tests set forth in NCHRP Report 350 and 15 fully approved for use on the National Highway System by the Federal Highway Administration This manual has been written to help you with the operation and maintenance of the TTMA 100 Please read and understand the recommendations contained in this manual thoroughly before use and keep it handy for future reference If you have any questions or comments regarding the operation and maintenance of this product please do not hes
9. Warning Do not attach any item to the trailer or hitch without explicit approval from the manufacturer Contact STI Technical Support or Customer Service for any question regarding attachments to the trailer technical safetytrailers com Phone 210 464 3465 14 This manual does not cover operation of optional equipment such as arrow boards variable message sign boards and other approved hitch mounted equipment Please see appropriate operating manuals accompanying those devices for instructions 15 MAINTENANCE GUIDELINES Proper maintenance of the TTMA 100 15 critical to assure continuing safe operation and long term durability of the device Even though the unit 1s galvanized the outside of the TTMA 100 should be washed periodically particularly during winter usage to eliminate salt and other road contaminants The inside of the frame should also be washed annually The end caps Item G can be removed to allow rinsing the inside of the frame Care should be taken with the wiring for the side marker lights during this process Note that all critical parts of the TTMA 100 are hot dip galvanized thus require minimal maintenance The following preventive maintenance schedule 1s recommended Before 3 Months 12 Months Item Function Required Weekly or 3 000 or 12 000 Each Use Miles Lighting System Pintle Hook Check capacity and verify that the retaining pin is properly inserted 2 Check that they are p
10. e conducted with the Trailer TMA attached to a tow vehicle that was blocked against any forward movement In other words the trailer can be attached to any support truck weighing more than 10 000 Ib 4 536 kg even a truck weighing as much as 100 000 Ib 45 360 kg or more TOW VEHICLE ROLL AHEAD DISTANCES One of the major safety considerations 15 the roll ahead distance of the shadow vehicle when impacted by an errant vehicle When the tow vehicle with a TTMA 100 attached is impacted by an errant vehicle it will move forward It is therefore important to allow sufficient space between the tow vehicle and the workers so that the roll ahead of the tow vehicle would not pose a safety concern for the workers Tables 3 and 4 show the expected roll ahead distances for rolling and stationary tow vehicles respectively as a function of impact speed and weights of the support truck and impacting vehicle The space between the support vehicle and the workers should exceed the roll ahead distance under the prevailing operating conditions The roll ahead calculations shown in Table 3 and 4 are based upon procedures presented in Guidelines for the Use of Truck Mounted Attenuators in Work Zones by Jack B Humphries and T Darcy Sullivan TRR No 1304 1991 292 302 Please follow the following steps to determine the appropriate roll ahead distance 1 Assess the nature of the operation 1 e moving or stationary operation In a moving operation the
11. ehicle Operating Impact Vehicle Weight Ib kg Weight Speed 4500 10000 15000 24000 lb kg mph km h 2 050 4 550 6 800 10 900 65 105 119 36 3 m 2057 62 5 m 2617 79 6 m 333 102 m 55 89 97 29 6m 158 482 m 198 60 4 m 247 75 3 m 45 72 7T 23 5 118 36 0 m 143 43 6 m 174 53 0 m 65 105 93 28 3 m 1617 49 1 m 211 64 3 m 278 84 7 m E 45 72 65 19 8 97 29 6 120 36 6 m 150 45 7 m 45 72 39 119m 4T 14 3 54 165m 67 20 4 12 Table 4 Calculated Roll Ahead Distances for Stationary Operation Traffic Operating Speed mph km h 2 050 4 550 45 72 18 5 5m 50 15 2 m Tow Vehicle Weight Ib kg 15000 6 800 24000 10900 55 89 27 82m 45 2 6 L8m 18 5 5m 45 72 3 0 9 m 9 2 7 m 45 72 2 0 6 m 5 1 5 m 60000 27 250 13 Impact Vehicle Weight Ib kg 152 46 3 m 109 33 2 m 73 22 3 m 108 32 9 m 7T 23 5 m 52 15 8 m 65 19 8 m 47 14 3 m 32 9 8 m 34 10 4 m 5 8 m 4 0 m 9 2 7 m 12 3 7 m 9 2 7 m 6 1 8 m 10 900 104 31 7 m 54 16 5 m J 18 5 5 m ATTACHMENT OF 100 TO TOW VEHICLE The TTMA 100 is attached to the tow vehicle via the pintle hook with a minimum capacity of 8 tons Warning Verify that the r
12. etaining pin for the pintle hook is properly locked to avoid accidental release of the pintle hook and the TTMA 100 Warning Make sure that the trailer lights are connected to the tow vehicle and are operating properly Warning Ensure that the safety chains properly secure the TTMA 100 to the tow vehicle OPERATION OF TTMA 100 Operation of the Trailer TMA 15 similar to that of other trailers Special attention should be given to the following issues Warning The TTMA 100 device does not have brakes All braking will be dependent on the tow vehicle Thus additional distance should be allowed for in braking and stopping of the tow vehicle Warning Do not use the Trailer TMA for hauling Objects on the trailer would be a hazard for vehicles impacting the TTMA 100 Warning Attachment of the trailer TMA results in wider turns Drivers should be aware of this need for wider turning radius and adjust their driving accordingly Warning Attachment of any trailer TMA will result in different handling for the tow vehicle while backing up Drivers should be aware of this difference in vehicle handling characteristics and adjust their driving accordingly Warning Tow vehicles should be equipped with head rests lap belts and shoulder straps to provide proper crash protection for the driver and passengers Operators should adjust their head rest to contact the center of the head and should wear seat belt and shoulder strap at all times
13. f metal is initiated as shown the photograph thereby dissipating energy from the impacting vehicle 17 5 The sequence of events from here depends on speed and weight of impacting vehicle Low speed impact a The impacting vehicle comes to a complete stop prior to the mandrels Part B reaching the breakaway axle Part E Medium speed impact a The mandrels Part B reach the breakaway axle and shear off the bolts connecting the axle assembly to the energy absorbing tube thus releasing the axle b The impact head Part A contacts the axle push rods and move the axle forward as the bursting process continues e The impacting vehicle comes to a complete stop prior to the mandrels reaching the splice connecting the energy absorbing tubes and the trailer frame Part D High speed impact a The mandrels Part B continue past the splice connecting the energy absorbing tubes Part C and the trailer frame Part D The vehicle is eventually brought to a safe stop against the impact head or disengages from the impact head and spins out prior coming to a complete stop 18 TTMA 100 REPAIR For impacts requiring repair and replacement of parts on the TTMA 100 Safety Trailers Inc offers different parts packages depending on the extent of damage sustained by the unit These parts packages come with specific instructions regarding repair of your damaged trailer These parts packages are available th
14. iler lights for damage If the lighting system sustains only minor damage such as a broken lens or light bulb repair the damaged items which may be readily purchased from automotive supplies stores Make sure that all the lights are working properly prior to returning the trailer to service If the lighting system is severely damaged and no longer functional replace the entire lighting system Inspect impact head Part A and mandrels Parts B for damage For this severity of impact it is unusual for either the impact head the mandrels to be damaged to the extent that they are no longer usable and needs to be replaced Nonetheless check to make sure that the impact head and mandrels are not severely bent and are properly aligned with the energy absorbing tubes Inspect lunette ring and pintle hook for damage For this severity of impact it is unusual for either the lunette ring or the pintle hook to be damaged to the extent that they are no longer usable and needs to be replaced Nonetheless check to make sure that the lunette ring and the pintle hook are not severely bent and can be hooked up properly 20 Order appropriate parts in accordance with damage sustained trailer Items in Package LSRC 2 each Parts C a b c d g and h T100 LB Basic light system Axle Assembly Detached but No Damage to Trailer A Frame Replace energy absorbing tubes Part C and shear bolts Parts a b c d g and h
15. itate to contact us by telephone at 210 464 3465 e mail at technical safetytrailers com or conventional mail at 9 Cotswold Lane San Antonio TX 78257 This manual 1s divided into five sections TTMA Design and Major Components An overview of the Trailer TMA design and major components are presented in this section including the product specifications and parts list Assembly Guidelines Directions on the assembly of the TTMA 100 are outlined and illustrated in this section e Operation Guidelines Guidelines pertaining to the operation of the Trailer TMA are presented in this section such as minimum support truck weight roll ahead distances connections and other operational items e Maintenance Guidelines Considerations on the routine maintenance of the Trailer TMA are outlined in this section e Repair of Damaged Trailer Discussion of impacts by an errant vehicle and the associated repair and replacement of trailer parts are presented in this section CUSTOMER SERVICE CONTACTS Safety Trailers Inc is committed to providing the best service and care to our customers You are automatically registered with your purchase and you will be notified of any future changes or upgrades to the TTMA 100 If you have any comments or questions regarding this product please contact STI via telephone e mail or conventional mail Telephone 210 464 3465 Monday to Friday 9 00 a m to 5 00 p m Central Time Fax 210 698
16. nature and severity of the impact It would not possible to cover all situations that could potentially be encountered in real world crashes Thus the instructions are presented in general terms for the following levels of damage to the trailer Noapparent damage to trailer e Energy absorbing tubes Part C bursted but axle assembly Part E not detached e Energy absorbing tubes Part C bursted and axle assembly Part E detached but the bursting does not reach the trailer A frame Part D e Bursting reaches trailer A frame Detailed discussions on the required repair and replacement parts for each level of damage are presented as follows 19 No Apparent Damage to Trailer Inspect shear bolts Part a holding mandrels Part B in place with the energy absorbing tubes Part C If the shear bolts are bent or broken replace the bolts Inspect trailer lighting system for damage If the lighting system sustains only minor damage such as a broken lens or light bulb repair the damaged items which may be readily purchased from automotive supplies stores Make sure that all the lights are working properly prior to returning the trailer to service Order the appropriate parts in accordance with the damage sustained by the trailer Items in Package NHRC Shear bolts nuts washers and plastic guide plates Axle Assembly not Detached Replace energy absorbing tubes Part C and shear bolts Parts a b c d Inspect tra
17. nt 1 450 Ib 660 Approximate Tongue Weight 150 Ib 68 Pintle Hook Capacity Rating Minimum 9 tons 7250 kg Mounting Height 19 5 32 0 in 500 800 mm Breakaway Axle Rating 1 750 Ib 795 kg Tire Size 205 75D15 205 75 15 Rim Size 15x5JJ 15x5JJ Cold Tire Inflation Pressure 30 psi 210 TABLE 2 TRAILER COMPONENT AND PARTS LIST TRAILER COMPONENTS ITEM PART QUANTITY DESCRIPTION A T100A Impact Head T100B Trailer A Frame Axle Assembly mer 4 Plastic Guide Pats 0 a me neu 1 HihAwmy ros Spacer X 1 HARDWARE ITEMS 051607 6 5 16 x 7 Grade 5 Hex Bolt e 6 5 16 Heavy Lock Washer Bostona 8 12 x2 Grade 5 Hex Bolt twsa I7 Heavy Lock Washer 9 16 x 3 Grade 5 Hex Bolt wes 16 9 16 Grade 5 Hex Nut 1016025 4 5 8 x21 2 Grade 5 Hex Bolt L 4 SW Heavy Lock Wasir Bursting Mandrel First Stage Energy Absorber AqRmIAE K Rear View of Light Bar 5 Wires 4 for Standard Lights and Wires for NN 7 i 1 for Stobe Option Marker Light STT Light p 3 Wires from 7 Pin Connector E Power for Optional Arrow eee Board and Front Running Lights License Plate Light and Bracket 2 Wires for Lights dE CO gt Ta S T T Light L
18. ook are the strength of the attachment and the mounting height The pintle hook assembly may be welded or bolted to the frame of the tow vehicle Regardless of the method of mounting or attachment to the tow vehicle it is critical to ensure that the strength of the attachment exceeds the rated capacity of the pintle hook with a wide margin of safety It is the obligation of the users to ensure that their particular pintle hook attachment system meets these strength requirements There are two mounting positions for the lunette ring The nominal height of the upper mounting position is 28 inches 710 mm and the nominal height for the lower position 15 23 5 inches 600 mm The TTMA 100 can accommodate a variation of up to 4 inches 100 mm from the nominal height Hence when the lunette ring 1s the upper position the TTMA 100 can be attached to a pintle hitch ranging from a minimum of 24 in 610 mm to a maximum of 32 in 810 mm in height When the lunette ring 15 in the lower position the TTMA 100 can be mounted on pintle hooks ranging from a minimum of 19 5 in 495 mm to a maximum of 27 5 in 699 mm in height OPERATION GUIDELINES MINIMUM WEIGHT OF TOW VEHICLE The minimum recommended weight for the tow vehicle is 10 000 Ib 4 536 kg gross vehicle weight GVW There is no specified maximum weight for the tow vehicle All TTMA 100 crash tests including the required and optional crash tests specified under NCHRP Report 350 wer
19. roperly attached Chains Tire Condition Inspect for cracks dents distortion Wheels or other signs of wear Bolts and Tighten to manufacturer specified Wheel Nuts torque values Test that all lights are operational Inspect for cuts wear bulging etc Wheel Inspect for corrosion or wear Clean and repack and Cups Frame Welds Check for cracks call STI for instruction if cracks are detected 16 REPAIR OF DAMAGED TRAILER Impact by Errant Vehicle The TTMA 100 is designed to reduce the impact severity for both the occupants of the impacting vehicle and the tow vehicle by dissipating the impact energy in a gradual and controlled manner When the TTMA 100 is impacted by an errant vehicle the following sequence of events will occur all references to parts are depicted in Figure and described in Table 2 1 For impacts of 5 mph 8 km h or less which are generally termed as nuisance hits results from crash testing have shown that there is typically no damage to the energy absorption assembly of the TTMA 100 2 For higher speed impacts the shear bolts holding the mandrels Part a to the energy absorbing tubes will be sheared off thus releasing the mandrels to move forward 3 The mandrels Part B are pushed forward by the impacting vehicle and engage the ends of the energy absorbing tubes Part 4 As mandrels are pushed forward bursting of the energy absorbing tubes into four strips o
20. rough STI or a designated distributor in your area FOR A LIMITED TIME REPLACEMENT PARTS ARE AVAILABLE AT MANUFACTURER COST PLUS HANDLING COSTS IN EXCHANGE FOR DOCUMENTATION OF THE IMPACTS AND OR ACCIDENTS To facilitate our evaluation of the in service performance of the TTMA 100 we offer for a limited time repair parts packages at manufacturing cost plus 10 percent FOB Indiana if complete records of the incident are forwarded to STI within 30 days of the occurrence These records include a completed STI incident report available on our web site www safetytrailers com or by calling 210 464 3465 and one or more of the following items photographs of damaged trailer photographs of the impacting and tow vehicles police accident report 1f available and phone interviews with involved parties These parts packages are also available for purchase by the end user to be kept in stock In this case STI will issue rebates if the incident requiring replacement of the parts 15 reported to STI as described above DAMAGE ASSESSMENT AND REPAIR PARTS PACKAGES Inspect the trailer TMA to assess the extent of the damage and the necessary repairs Due to the simple design of the TTMA 100 damages to the trailers are usually very evident Nevertheless the trailer should be thoroughly inspected to assure that it is in proper working order prior to returning the trailer into service The extent of damage to the trailer will vary greatly depending on the
21. ue weight of the trailer which would not affect the load carrying capacity of the tow vehicle e The capacity and mounting height of the pintle hook e Information on the axle assembly 1 e load rating wheel and tire sizes and cold inflation pressure Table 2 provides a list of parts with legends and part numbers Please refer to these part numbers and legends for ordering of spare parts Note that this is not a complete parts list Please inquire about the complete parts list and pricing from the manufacturer distributor or reseller of the Trailer TMA Figure 2 shows the schematic of the wiring details of the Trailer TMA Also detailed instructions on the wiring of the trailer TMA are provided in a separate Wiring Manual and will not be repeated herein However the trailer TMA 15 fully wired at the time of delivery The only item that may require attention of the user is the wiring of the trailer plug for connection to the tow vehicle More detailed instructions on are provided later in this section 0 q r 8 2 4m 23 6 7 2m BET Al pn ia 2 4 711mm Upper Position Figure 1 Schematic and Parts Layout of TTMA 100 TABLE 1 GENERAL SPECIFICATIONS Overall Dimensions Length 23 ft 7200 mm Width 8 ft 2440 mm Maximum Height to top of impact head 2ft 7 in 788 mm Maximum Height to top of light bar 3 ft 1 in 940 mm Weight Basic Trailer Weight with No Optional Equipme
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